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audacity/lib-src/libflac/src/flac/encode.c
lllucius 8fb66c92a1 Update libflac to 1.3.0.
2013-10-24 16:08:56 +00:00

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/* flac - Command-line FLAC encoder/decoder
* Copyright (C) 2000-2009 Josh Coalson
* Copyright (C) 2011-2013 Xiph.Org Foundation
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#if HAVE_CONFIG_H
# include <config.h>
#endif
#include <errno.h>
#include <limits.h> /* for LONG_MAX */
#include <math.h> /* for floor() */
#include <stdio.h> /* for FILE etc. */
#include <stdlib.h> /* for malloc */
#include <string.h> /* for strcmp(), strerror() */
#include <sys/stat.h>
#include "FLAC/all.h"
#include "share/alloc.h"
#include "share/grabbag.h"
#include "share/compat.h"
#include "share/private.h"
#include "share/safe_str.h"
#include "encode.h"
#ifdef min
#undef min
#endif
#define min(x,y) ((x)<(y)?(x):(y))
#ifdef max
#undef max
#endif
#define max(x,y) ((x)>(y)?(x):(y))
/* this MUST be >= 588 so that sector aligning can take place with one read */
/* this MUST be < 2^sizeof(size_t) / ( FLAC__MAX_CHANNELS * (FLAC__MAX_BITS_PER_SAMPLE/8) ) */
#define CHUNK_OF_SAMPLES 2048
typedef struct {
unsigned sample_rate;
unsigned channels;
unsigned bits_per_sample; /* width of sample point, including 'shift' bits, valid bps is bits_per_sample-shift */
unsigned shift; /* # of LSBs samples have been shifted left by */
unsigned bytes_per_wide_sample; /* for convenience, always == channels*((bps+7)/8), or 0 if N/A to input format (like FLAC) */
FLAC__bool is_unsigned_samples;
FLAC__bool is_big_endian;
FLAC__uint32 channel_mask;
} SampleInfo;
/* this is the client_data attached to the FLAC decoder when encoding from a FLAC file */
typedef struct {
FLAC__off_t filesize;
const FLAC__byte *lookahead;
unsigned lookahead_length;
size_t num_metadata_blocks;
FLAC__StreamMetadata *metadata_blocks[1024]; /*@@@ BAD MAGIC number */
FLAC__uint64 samples_left_to_process;
FLAC__bool fatal_error;
} FLACDecoderData;
typedef struct {
#if FLAC__HAS_OGG
FLAC__bool use_ogg;
#endif
FLAC__bool verify;
FLAC__bool is_stdout;
FLAC__bool outputfile_opened; /* true if we successfully opened the output file and we want it to be deleted if there is an error */
const char *inbasefilename;
const char *infilename;
const char *outfilename;
FLAC__bool treat_warnings_as_errors;
FLAC__bool continue_through_decode_errors;
FLAC__bool replay_gain;
FLAC__uint64 total_samples_to_encode; /* (i.e. "wide samples" aka "sample frames") WATCHOUT: may be 0 to mean 'unknown' */
FLAC__uint64 unencoded_size; /* an estimate of the input size, only used in the progress indicator */
FLAC__uint64 bytes_written;
FLAC__uint64 samples_written;
unsigned stats_mask;
SampleInfo info;
FileFormat format;
union {
struct {
FLAC__uint64 data_bytes;
} iff;
struct {
FLAC__StreamDecoder *decoder;
FLACDecoderData client_data;
} flac;
} fmt;
FLAC__StreamEncoder *encoder;
FILE *fin;
FLAC__StreamMetadata *seek_table_template;
} EncoderSession;
const int FLAC_ENCODE__DEFAULT_PADDING = 8192;
static FLAC__bool is_big_endian_host_;
static unsigned char ucbuffer_[CHUNK_OF_SAMPLES*FLAC__MAX_CHANNELS*((FLAC__REFERENCE_CODEC_MAX_BITS_PER_SAMPLE+7)/8)];
static signed char *scbuffer_ = (signed char *)ucbuffer_;
static FLAC__uint16 *usbuffer_ = (FLAC__uint16 *)ucbuffer_;
static FLAC__int16 *ssbuffer_ = (FLAC__int16 *)ucbuffer_;
static FLAC__int32 in_[FLAC__MAX_CHANNELS][CHUNK_OF_SAMPLES];
static FLAC__int32 *input_[FLAC__MAX_CHANNELS];
/*
* local routines
*/
static FLAC__bool EncoderSession_construct(EncoderSession *e, encode_options_t options, FLAC__off_t infilesize, FILE *infile, const char *infilename, const char *outfilename, const FLAC__byte *lookahead, unsigned lookahead_length);
static void EncoderSession_destroy(EncoderSession *e);
static int EncoderSession_finish_ok(EncoderSession *e, int info_align_carry, int info_align_zero, foreign_metadata_t *foreign_metadata);
static int EncoderSession_finish_error(EncoderSession *e);
static FLAC__bool EncoderSession_init_encoder(EncoderSession *e, encode_options_t options);
static FLAC__bool EncoderSession_process(EncoderSession *e, const FLAC__int32 * const buffer[], unsigned samples);
static FLAC__bool EncoderSession_format_is_iff(const EncoderSession *e);
static FLAC__bool convert_to_seek_table_template(const char *requested_seek_points, int num_requested_seek_points, FLAC__StreamMetadata *cuesheet, EncoderSession *e);
static FLAC__bool canonicalize_until_specification(utils__SkipUntilSpecification *spec, const char *inbasefilename, unsigned sample_rate, FLAC__uint64 skip, FLAC__uint64 total_samples_in_input);
static FLAC__bool verify_metadata(const EncoderSession *e, FLAC__StreamMetadata **metadata, unsigned num_metadata);
static FLAC__bool format_input(FLAC__int32 *dest[], unsigned wide_samples, FLAC__bool is_big_endian, FLAC__bool is_unsigned_samples, unsigned channels, unsigned bps, unsigned shift, size_t *channel_map);
static void encoder_progress_callback(const FLAC__StreamEncoder *encoder, FLAC__uint64 bytes_written, FLAC__uint64 samples_written, unsigned frames_written, unsigned total_frames_estimate, void *client_data);
static FLAC__StreamDecoderReadStatus flac_decoder_read_callback(const FLAC__StreamDecoder *decoder, FLAC__byte buffer[], size_t *bytes, void *client_data);
static FLAC__StreamDecoderSeekStatus flac_decoder_seek_callback(const FLAC__StreamDecoder *decoder, FLAC__uint64 absolute_byte_offset, void *client_data);
static FLAC__StreamDecoderTellStatus flac_decoder_tell_callback(const FLAC__StreamDecoder *decoder, FLAC__uint64 *absolute_byte_offset, void *client_data);
static FLAC__StreamDecoderLengthStatus flac_decoder_length_callback(const FLAC__StreamDecoder *decoder, FLAC__uint64 *stream_length, void *client_data);
static FLAC__bool flac_decoder_eof_callback(const FLAC__StreamDecoder *decoder, void *client_data);
static FLAC__StreamDecoderWriteStatus flac_decoder_write_callback(const FLAC__StreamDecoder *decoder, const FLAC__Frame *frame, const FLAC__int32 * const buffer[], void *client_data);
static void flac_decoder_metadata_callback(const FLAC__StreamDecoder *decoder, const FLAC__StreamMetadata *metadata, void *client_data);
static void flac_decoder_error_callback(const FLAC__StreamDecoder *decoder, FLAC__StreamDecoderErrorStatus status, void *client_data);
static FLAC__bool parse_cuesheet(FLAC__StreamMetadata **cuesheet, const char *cuesheet_filename, const char *inbasefilename, unsigned sample_rate, FLAC__bool is_cdda, FLAC__uint64 lead_out_offset, FLAC__bool treat_warnings_as_errors);
static void print_stats(const EncoderSession *encoder_session);
static void print_error_with_init_status(const EncoderSession *e, const char *message, FLAC__StreamEncoderInitStatus init_status);
static void print_error_with_state(const EncoderSession *e, const char *message);
static void print_verify_error(EncoderSession *e);
static FLAC__bool read_bytes(FILE *f, FLAC__byte *buf, size_t n, FLAC__bool eof_ok, const char *fn);
static FLAC__bool read_uint16(FILE *f, FLAC__bool big_endian, FLAC__uint16 *val, const char *fn);
static FLAC__bool read_uint32(FILE *f, FLAC__bool big_endian, FLAC__uint32 *val, const char *fn);
static FLAC__bool read_uint64(FILE *f, FLAC__bool big_endian, FLAC__uint64 *val, const char *fn);
static FLAC__bool read_sane_extended(FILE *f, FLAC__uint32 *val, const char *fn);
static FLAC__bool fskip_ahead(FILE *f, FLAC__uint64 offset);
static unsigned count_channel_mask_bits(FLAC__uint32 mask);
#if 0
static FLAC__uint32 limit_channel_mask(FLAC__uint32 mask, unsigned channels);
#endif
static FLAC__bool get_sample_info_raw(EncoderSession *e, encode_options_t options)
{
e->info.sample_rate = options.format_options.raw.sample_rate;
e->info.channels = options.format_options.raw.channels;
e->info.bits_per_sample = options.format_options.raw.bps;
e->info.shift = 0;
e->info.bytes_per_wide_sample = options.format_options.raw.channels * ((options.format_options.raw.bps+7)/8);
e->info.is_unsigned_samples = options.format_options.raw.is_unsigned_samples;
e->info.is_big_endian = options.format_options.raw.is_big_endian;
e->info.channel_mask = 0;
return true;
}
static FLAC__bool get_sample_info_wave(EncoderSession *e, encode_options_t options)
{
FLAC__bool got_fmt_chunk = false, got_data_chunk = false, got_ds64_chunk = false;
unsigned sample_rate = 0, channels = 0, bps = 0, shift = 0;
FLAC__uint32 channel_mask = 0;
FLAC__uint64 ds64_data_size = 0;
e->info.is_unsigned_samples = false;
e->info.is_big_endian = false;
if(e->format == FORMAT_WAVE64) {
/*
* lookahead[] already has "riff\x2E\x91\xCF\x11\xA5\xD6\x28\xDB", skip over remaining header
*/
if(!fskip_ahead(e->fin, 16+8+16-12)) { /* riff GUID + riff size + WAVE GUID - lookahead */
flac__utils_printf(stderr, 1, "%s: ERROR during read while skipping over remaining \"riff\" header\n", e->inbasefilename);
return false;
}
}
/* else lookahead[] already has "RIFFxxxxWAVE" or "RF64xxxxWAVE" */
while(!feof(e->fin) && !got_data_chunk) {
/* chunk IDs are 4 bytes for WAVE/RF64, 16 for Wave64 */
/* for WAVE/RF64 we want the 5th char zeroed so we can treat it like a C string */
char chunk_id[16] = { '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0' };
if(!read_bytes(e->fin, (FLAC__byte*)chunk_id, e->format==FORMAT_WAVE64?16:4, /*eof_ok=*/true, e->inbasefilename)) {
flac__utils_printf(stderr, 1, "%s: ERROR: incomplete chunk identifier\n", e->inbasefilename);
return false;
}
if(feof(e->fin))
break;
if(e->format == FORMAT_RF64 && !memcmp(chunk_id, "ds64", 4)) { /* RF64 64-bit sizes chunk */
FLAC__uint32 xx, data_bytes;
if(got_ds64_chunk) {
flac__utils_printf(stderr, 1, "%s: ERROR: file has multiple 'ds64' chunks\n", e->inbasefilename);
return false;
}
if(got_fmt_chunk || got_data_chunk) {
flac__utils_printf(stderr, 1, "%s: ERROR: 'ds64' chunk appears after 'fmt ' or 'data' chunk\n", e->inbasefilename);
return false;
}
/* ds64 chunk size */
if(!read_uint32(e->fin, /*big_endian=*/false, &xx, e->inbasefilename))
return false;
data_bytes = xx;
if(data_bytes < 28) {
flac__utils_printf(stderr, 1, "%s: ERROR: non-standard 'ds64' chunk has length = %u\n", e->inbasefilename, (unsigned)data_bytes);
return false;
}
if(data_bytes & 1) /* should never happen, but enforce WAVE alignment rules */
data_bytes++;
/* RIFF 64-bit size, lo/hi */
if(!read_uint32(e->fin, /*big_endian=*/false, &xx, e->inbasefilename))
return false;
if(!read_uint32(e->fin, /*big_endian=*/false, &xx, e->inbasefilename))
return false;
/* 'data' 64-bit size */
if(!read_uint64(e->fin, /*big_endian=*/false, &ds64_data_size, e->inbasefilename))
return false;
data_bytes -= 16;
/* skip any extra data in the ds64 chunk */
if(!fskip_ahead(e->fin, data_bytes)) {
flac__utils_printf(stderr, 1, "%s: ERROR during read while skipping over extra 'ds64' data\n", e->inbasefilename);
return false;
}
got_ds64_chunk = true;
}
else if(
!memcmp(chunk_id, "fmt ", 4) &&
(e->format!=FORMAT_WAVE64 || !memcmp(chunk_id, "fmt \xF3\xAC\xD3\x11\x8C\xD1\x00\xC0\x4F\x8E\xDB\x8A", 16))
) { /* format chunk */
FLAC__uint16 x;
FLAC__uint32 xx, data_bytes;
FLAC__uint16 wFormatTag; /* wFormatTag word from the 'fmt ' chunk */
if(got_fmt_chunk) {
flac__utils_printf(stderr, 1, "%s: ERROR: file has multiple 'fmt ' chunks\n", e->inbasefilename);
return false;
}
/* see
* http://www-mmsp.ece.mcgill.ca/Documents/AudioFormats/WAVE/WAVE.html
* http://windowssdk.msdn.microsoft.com/en-us/library/ms713497.aspx
* http://msdn.microsoft.com/library/default.asp?url=/library/en-us/audio_r/hh/Audio_r/aud-prop_d40f094e-44f9-4baa-8a15-03e4fb369501.xml.asp
*
* WAVEFORMAT is
* 4 byte: chunk size
* 2 byte: format type: 1 for WAVE_FORMAT_PCM, 65534 for WAVE_FORMAT_EXTENSIBLE
* 2 byte: # channels
* 4 byte: sample rate (Hz)
* 4 byte: avg bytes per sec
* 2 byte: block align
* 2 byte: bits per sample (not necessarily all significant)
* WAVEFORMATEX adds
* 2 byte: extension size in bytes (usually 0 for WAVEFORMATEX and 22 for WAVEFORMATEXTENSIBLE with PCM)
* WAVEFORMATEXTENSIBLE adds
* 2 byte: valid bits per sample
* 4 byte: channel mask
* 16 byte: subformat GUID, first 2 bytes have format type, 1 being PCM
*
* Current spec says WAVEFORMATEX with PCM must have bps == 8 or 16, or any multiple of 8 for WAVEFORMATEXTENSIBLE.
* Lots of old broken WAVEs/apps have don't follow it, e.g. 20 bps but a block align of 3/6 for mono/stereo.
*
* Block align for WAVE_FORMAT_PCM or WAVE_FORMAT_EXTENSIBLE is also supposed to be channels*bps/8
*
* If the channel mask has more set bits than # of channels, the extra MSBs are ignored.
* If the channel mask has less set bits than # of channels, the extra channels are unassigned to any speaker.
*
* Data is supposed to be unsigned for bps <= 8 else signed.
*/
/* fmt chunk size */
if(!read_uint32(e->fin, /*big_endian=*/false, &xx, e->inbasefilename))
return false;
data_bytes = xx;
if(e->format == FORMAT_WAVE64) {
/* other half of the size field should be 0 */
if(!read_uint32(e->fin, /*big_endian=*/false, &xx, e->inbasefilename))
return false;
if(xx) {
flac__utils_printf(stderr, 1, "%s: ERROR: freakishly large Wave64 'fmt ' chunk has length = 0x%08X%08X\n", e->inbasefilename, (unsigned)xx, (unsigned)data_bytes);
return false;
}
/* subtract size of header */
if (data_bytes < 16+8) {
flac__utils_printf(stderr, 1, "%s: ERROR: freakishly small Wave64 'fmt ' chunk has length = 0x%08X%08X\n", e->inbasefilename, (unsigned)xx, (unsigned)data_bytes);
return false;
}
data_bytes -= (16+8);
}
if(data_bytes < 16) {
flac__utils_printf(stderr, 1, "%s: ERROR: non-standard 'fmt ' chunk has length = %u\n", e->inbasefilename, (unsigned)data_bytes);
return false;
}
if(e->format != FORMAT_WAVE64) {
if(data_bytes & 1) /* should never happen, but enforce WAVE alignment rules */
data_bytes++;
}
else { /* Wave64 */
data_bytes = (data_bytes+7) & (~7u); /* should never happen, but enforce Wave64 alignment rules */
}
/* format code */
if(!read_uint16(e->fin, /*big_endian=*/false, &wFormatTag, e->inbasefilename))
return false;
if(wFormatTag != 1 /*WAVE_FORMAT_PCM*/ && wFormatTag != 65534 /*WAVE_FORMAT_EXTENSIBLE*/) {
flac__utils_printf(stderr, 1, "%s: ERROR: unsupported format type %u\n", e->inbasefilename, (unsigned)wFormatTag);
return false;
}
/* number of channels */
if(!read_uint16(e->fin, /*big_endian=*/false, &x, e->inbasefilename))
return false;
channels = (unsigned)x;
/* sample rate */
if(!read_uint32(e->fin, /*big_endian=*/false, &xx, e->inbasefilename))
return false;
sample_rate = xx;
/* avg bytes per second (ignored) */
if(!read_uint32(e->fin, /*big_endian=*/false, &xx, e->inbasefilename))
return false;
/* block align */
if(!read_uint16(e->fin, /*big_endian=*/false, &x, e->inbasefilename))
return false;
/* bits per sample */
if(!read_uint16(e->fin, /*big_endian=*/false, &x, e->inbasefilename))
return false;
bps = (unsigned)x;
e->info.is_unsigned_samples = (bps <= 8);
if(wFormatTag == 1) {
if(bps != 8 && bps != 16) {
if(bps == 24 || bps == 32) {
/* let these slide with a warning since they're unambiguous */
flac__utils_printf(stderr, 1, "%s: WARNING: legacy WAVE file has format type %u but bits-per-sample=%u\n", e->inbasefilename, (unsigned)wFormatTag, bps);
if(e->treat_warnings_as_errors)
return false;
}
else {
/* @@@ we could add an option to specify left- or right-justified blocks so we knew how to set 'shift' */
flac__utils_printf(stderr, 1, "%s: ERROR: legacy WAVE file has format type %u but bits-per-sample=%u\n", e->inbasefilename, (unsigned)wFormatTag, bps);
return false;
}
}
#if 0 /* @@@ reinstate once we can get an answer about whether the samples are left- or right-justified */
if((bps+7)/8 * channels == block_align) {
if(bps % 8) {
/* assume legacy file is byte aligned with some LSBs zero; this is double-checked in format_input() */
flac__utils_printf(stderr, 1, "%s: WARNING: legacy WAVE file (format type %d) has block alignment=%u, bits-per-sample=%u, channels=%u\n", e->inbasefilename, (unsigned)wFormatTag, block_align, bps, channels);
if(e->treat_warnings_as_errors)
return false;
shift = 8 - (bps % 8);
bps += shift;
}
else
shift = 0;
}
else {
flac__utils_printf(stderr, 1, "%s: ERROR: illegal WAVE file (format type %d) has block alignment=%u, bits-per-sample=%u, channels=%u\n", e->inbasefilename, (unsigned)wFormatTag, block_align, bps, channels);
return false;
}
#else
shift = 0;
#endif
if(channels > 2 && !options.channel_map_none) {
flac__utils_printf(stderr, 1, "%s: ERROR: WAVE has >2 channels but is not WAVE_FORMAT_EXTENSIBLE; cannot assign channels\n", e->inbasefilename);
return false;
}
FLAC__ASSERT(data_bytes >= 16);
data_bytes -= 16;
}
else {
if(data_bytes < 40) {
flac__utils_printf(stderr, 1, "%s: ERROR: invalid WAVEFORMATEXTENSIBLE chunk with size %u\n", e->inbasefilename, (unsigned)data_bytes);
return false;
}
/* cbSize */
if(!read_uint16(e->fin, /*big_endian=*/false, &x, e->inbasefilename))
return false;
if(x < 22) {
flac__utils_printf(stderr, 1, "%s: ERROR: invalid WAVEFORMATEXTENSIBLE chunk with cbSize %u\n", e->inbasefilename, (unsigned)x);
return false;
}
/* valid bps */
if(!read_uint16(e->fin, /*big_endian=*/false, &x, e->inbasefilename))
return false;
if((unsigned)x > bps) {
flac__utils_printf(stderr, 1, "%s: ERROR: invalid WAVEFORMATEXTENSIBLE chunk with wValidBitsPerSample (%u) > wBitsPerSample (%u)\n", e->inbasefilename, (unsigned)x, bps);
return false;
}
shift = bps - (unsigned)x;
/* channel mask */
if(!read_uint32(e->fin, /*big_endian=*/false, &channel_mask, e->inbasefilename))
return false;
/* for mono/stereo and unassigned channels, we fake the mask */
if(channel_mask == 0) {
if(channels == 1)
channel_mask = 0x0001;
else if(channels == 2)
channel_mask = 0x0003;
}
/* set channel mapping */
/* FLAC order follows SMPTE and WAVEFORMATEXTENSIBLE but with fewer channels, which are: */
/* front left, front right, center, LFE, back left, back right, surround left, surround right */
/* the default mapping is sufficient for 1-6 channels and 7-8 are currently unspecified anyway */
#if 0
/* @@@ example for dolby/vorbis order, for reference later in case it becomes important */
if(
options.channel_map_none ||
channel_mask == 0x0001 || /* 1 channel: (mono) */
channel_mask == 0x0003 || /* 2 channels: front left, front right */
channel_mask == 0x0033 || /* 4 channels: front left, front right, back left, back right */
channel_mask == 0x0603 /* 4 channels: front left, front right, side left, side right */
) {
/* keep default channel order */
}
else if(
channel_mask == 0x0007 || /* 3 channels: front left, front right, front center */
channel_mask == 0x0037 || /* 5 channels: front left, front right, front center, back left, back right */
channel_mask == 0x0607 /* 5 channels: front left, front right, front center, side left, side right */
) {
/* to dolby order: front left, center, front right [, surround left, surround right ] */
channel_map[1] = 2;
channel_map[2] = 1;
}
else if(
channel_mask == 0x003f || /* 6 channels: front left, front right, front center, LFE, back left, back right */
channel_mask == 0x060f || /* 6 channels: front left, front right, front center, LFE, side left, side right */
channel_mask == 0x070f || /* 7 channels: front left, front right, front center, LFE, back center, side left, side right */
channel_mask == 0x063f /* 8 channels: front left, front right, front center, LFE, back left, back right, side left, side right */
) {
/* to dolby order: front left, center, front right, surround left, surround right, LFE */
channel_map[1] = 2;
channel_map[2] = 1;
channel_map[3] = 5;
channel_map[4] = 3;
channel_map[5] = 4;
}
#else
if(
options.channel_map_none ||
channel_mask == 0x0001 || /* 1 channel: (mono) */
channel_mask == 0x0003 || /* 2 channels: front left, front right */
channel_mask == 0x0007 || /* 3 channels: front left, front right, front center */
channel_mask == 0x0033 || /* 4 channels: front left, front right, back left, back right */
channel_mask == 0x0603 || /* 4 channels: front left, front right, side left, side right */
channel_mask == 0x0037 || /* 5 channels: front left, front right, front center, back left, back right */
channel_mask == 0x0607 || /* 5 channels: front left, front right, front center, side left, side right */
channel_mask == 0x003f || /* 6 channels: front left, front right, front center, LFE, back left, back right */
channel_mask == 0x060f || /* 6 channels: front left, front right, front center, LFE, side left, side right */
channel_mask == 0x070f || /* 7 channels: front left, front right, front center, LFE, back center, side left, side right */
channel_mask == 0x063f /* 8 channels: front left, front right, front center, LFE, back left, back right, side left, side right */
) {
/* keep default channel order */
}
#endif
else {
flac__utils_printf(stderr, 1, "%s: ERROR: WAVEFORMATEXTENSIBLE chunk with unsupported channel mask=0x%04X\n\nUse --channel-map=none option to store channels in current order; FLAC files\nmust also be decoded with --channel-map=none to restore correct order.\n", e->inbasefilename, (unsigned)channel_mask);
return false;
}
if(!options.channel_map_none) {
if(count_channel_mask_bits(channel_mask) < channels) {
flac__utils_printf(stderr, 1, "%s: ERROR: WAVEFORMATEXTENSIBLE chunk: channel mask 0x%04X has unassigned channels (#channels=%u)\n", e->inbasefilename, (unsigned)channel_mask, channels);
return false;
}
#if 0
/* supporting this is too difficult with channel mapping; e.g. what if mask is 0x003f but #channels=4?
* there would be holes in the order that would have to be filled in, or the mask would have to be
* limited and the logic above rerun to see if it still fits into the FLAC mapping.
*/
else if(count_channel_mask_bits(channel_mask) > channels)
channel_mask = limit_channel_mask(channel_mask, channels);
#else
else if(count_channel_mask_bits(channel_mask) > channels) {
flac__utils_printf(stderr, 1, "%s: ERROR: WAVEFORMATEXTENSIBLE chunk: channel mask 0x%04X has extra bits for non-existant channels (#channels=%u)\n", e->inbasefilename, (unsigned)channel_mask, channels);
return false;
}
#endif
}
/* first part of GUID */
if(!read_uint16(e->fin, /*big_endian=*/false, &x, e->inbasefilename))
return false;
if(x != 1) {
flac__utils_printf(stderr, 1, "%s: ERROR: unsupported WAVEFORMATEXTENSIBLE chunk with non-PCM format %u\n", e->inbasefilename, (unsigned)x);
return false;
}
data_bytes -= 26;
}
e->info.bytes_per_wide_sample = channels * (bps / 8);
/* skip any extra data in the fmt chunk */
if(!fskip_ahead(e->fin, data_bytes)) {
flac__utils_printf(stderr, 1, "%s: ERROR during read while skipping over extra 'fmt' data\n", e->inbasefilename);
return false;
}
got_fmt_chunk = true;
}
else if(
!memcmp(chunk_id, "data", 4) &&
(e->format!=FORMAT_WAVE64 || !memcmp(chunk_id, "data\xF3\xAC\xD3\x11\x8C\xD1\x00\xC0\x4F\x8E\xDB\x8A", 16))
) { /* data chunk */
FLAC__uint32 xx;
FLAC__uint64 data_bytes;
if(!got_fmt_chunk) {
flac__utils_printf(stderr, 1, "%s: ERROR: got 'data' chunk before 'fmt' chunk\n", e->inbasefilename);
return false;
}
/* data size */
if(e->format != FORMAT_WAVE64) {
if(!read_uint32(e->fin, /*big_endian=*/false, &xx, e->inbasefilename))
return false;
data_bytes = xx;
}
else { /* Wave64 */
if(!read_uint64(e->fin, /*big_endian=*/false, &data_bytes, e->inbasefilename))
return false;
/* subtract size of header */
if (data_bytes < 16+8) {
flac__utils_printf(stderr, 1, "%s: ERROR: freakishly small Wave64 'data' chunk has length = 0x00000000%08X\n", e->inbasefilename, (unsigned)data_bytes);
return false;
}
data_bytes -= (16+8);
}
if(e->format == FORMAT_RF64) {
if(!got_ds64_chunk) {
flac__utils_printf(stderr, 1, "%s: ERROR: RF64 file has no 'ds64' chunk before 'data' chunk\n", e->inbasefilename);
return false;
}
if(data_bytes == 0xffffffff)
data_bytes = ds64_data_size;
}
if(options.ignore_chunk_sizes) {
FLAC__ASSERT(!options.sector_align);
if(data_bytes) {
flac__utils_printf(stderr, 1, "%s: WARNING: 'data' chunk has non-zero size, using --ignore-chunk-sizes is probably a bad idea\n", e->inbasefilename, chunk_id);
if(e->treat_warnings_as_errors)
return false;
}
data_bytes = (FLAC__uint64)0 - (FLAC__uint64)e->info.bytes_per_wide_sample; /* max out data_bytes; we'll use EOF as signal to stop reading */
}
else if(0 == data_bytes) {
flac__utils_printf(stderr, 1, "%s: ERROR: 'data' chunk has size of 0\n", e->inbasefilename);
return false;
}
e->fmt.iff.data_bytes = data_bytes;
got_data_chunk = true;
break;
}
else {
FLAC__uint32 xx;
FLAC__uint64 skip;
if(!options.format_options.iff.foreign_metadata) {
if(e->format != FORMAT_WAVE64)
flac__utils_printf(stderr, 1, "%s: WARNING: skipping unknown chunk '%s' (use --keep-foreign-metadata to keep)\n", e->inbasefilename, chunk_id);
else
flac__utils_printf(stderr, 1, "%s: WARNING: skipping unknown chunk %02X%02X%02X%02X-%02X%02X-%02X%02X-%02X%02X-%02X%02X%02X%02X%02X%02X (use --keep-foreign-metadata to keep)\n",
e->inbasefilename,
(unsigned)((const unsigned char *)chunk_id)[3],
(unsigned)((const unsigned char *)chunk_id)[2],
(unsigned)((const unsigned char *)chunk_id)[1],
(unsigned)((const unsigned char *)chunk_id)[0],
(unsigned)((const unsigned char *)chunk_id)[5],
(unsigned)((const unsigned char *)chunk_id)[4],
(unsigned)((const unsigned char *)chunk_id)[7],
(unsigned)((const unsigned char *)chunk_id)[6],
(unsigned)((const unsigned char *)chunk_id)[9],
(unsigned)((const unsigned char *)chunk_id)[8],
(unsigned)((const unsigned char *)chunk_id)[10],
(unsigned)((const unsigned char *)chunk_id)[11],
(unsigned)((const unsigned char *)chunk_id)[12],
(unsigned)((const unsigned char *)chunk_id)[13],
(unsigned)((const unsigned char *)chunk_id)[14],
(unsigned)((const unsigned char *)chunk_id)[15]
);
if(e->treat_warnings_as_errors)
return false;
}
/* chunk size */
if(e->format != FORMAT_WAVE64) {
if(!read_uint32(e->fin, /*big_endian=*/false, &xx, e->inbasefilename))
return false;
skip = xx;
skip += skip & 1;
}
else { /* Wave64 */
if(!read_uint64(e->fin, /*big_endian=*/false, &skip, e->inbasefilename))
return false;
skip = (skip+7) & (~(FLAC__uint64)7);
/* subtract size of header */
if (skip < 16+8) {
flac__utils_printf(stderr, 1, "%s: ERROR: freakishly small Wave64 chunk has length = 0x00000000%08X\n", e->inbasefilename, (unsigned)skip);
return false;
}
skip -= (16+8);
}
if(skip) {
if(!fskip_ahead(e->fin, skip)) {
flac__utils_printf(stderr, 1, "%s: ERROR during read while skipping over chunk\n", e->inbasefilename);
return false;
}
}
}
}
if(!got_fmt_chunk) {
flac__utils_printf(stderr, 1, "%s: ERROR: didn't find fmt chunk\n", e->inbasefilename);
return false;
}
if(!got_data_chunk) {
flac__utils_printf(stderr, 1, "%s: ERROR: didn't find data chunk\n", e->inbasefilename);
return false;
}
e->info.sample_rate = sample_rate;
e->info.channels = channels;
e->info.bits_per_sample = bps;
e->info.shift = shift;
e->info.channel_mask = channel_mask;
return true;
}
static FLAC__bool get_sample_info_aiff(EncoderSession *e, encode_options_t options)
{
FLAC__bool got_comm_chunk = false, got_ssnd_chunk = false;
unsigned sample_rate = 0, channels = 0, bps = 0, shift = 0;
FLAC__uint64 sample_frames = 0;
FLAC__uint32 channel_mask = 0;
e->info.is_unsigned_samples = false;
e->info.is_big_endian = true;
/*
* lookahead[] already has "FORMxxxxAIFF", do chunks
*/
while(!feof(e->fin) && !got_ssnd_chunk) {
char chunk_id[5] = { '\0', '\0', '\0', '\0', '\0' }; /* one extra byte for terminating NUL so we can also treat it like a C string */
if(!read_bytes(e->fin, (FLAC__byte*)chunk_id, 4, /*eof_ok=*/true, e->inbasefilename)) {
flac__utils_printf(stderr, 1, "%s: ERROR: incomplete chunk identifier\n", e->inbasefilename);
return false;
}
if(feof(e->fin))
break;
if(!memcmp(chunk_id, "COMM", 4)) { /* common chunk */
FLAC__uint16 x;
FLAC__uint32 xx;
unsigned long skip;
const FLAC__bool is_aifc = e->format == FORMAT_AIFF_C;
const FLAC__uint32 minimum_comm_size = (is_aifc? 22 : 18);
if(got_comm_chunk) {
flac__utils_printf(stderr, 1, "%s: ERROR: file has multiple 'COMM' chunks\n", e->inbasefilename);
return false;
}
/* COMM chunk size */
if(!read_uint32(e->fin, /*big_endian=*/true, &xx, e->inbasefilename))
return false;
else if(xx < minimum_comm_size) {
flac__utils_printf(stderr, 1, "%s: ERROR: non-standard %s 'COMM' chunk has length = %u\n", e->inbasefilename, is_aifc? "AIFF-C" : "AIFF", (unsigned int)xx);
return false;
}
else if(!is_aifc && xx != minimum_comm_size) {
flac__utils_printf(stderr, 1, "%s: WARNING: non-standard %s 'COMM' chunk has length = %u, expected %u\n", e->inbasefilename, is_aifc? "AIFF-C" : "AIFF", (unsigned int)xx, minimum_comm_size);
if(e->treat_warnings_as_errors)
return false;
}
skip = (xx-minimum_comm_size)+(xx & 1);
/* number of channels */
if(!read_uint16(e->fin, /*big_endian=*/true, &x, e->inbasefilename))
return false;
channels = (unsigned)x;
if(channels > 2 && !options.channel_map_none) {
flac__utils_printf(stderr, 1, "%s: ERROR: unsupported number of channels %u for AIFF\n", e->inbasefilename, channels);
return false;
}
/* number of sample frames */
if(!read_uint32(e->fin, /*big_endian=*/true, &xx, e->inbasefilename))
return false;
sample_frames = xx;
/* bits per sample */
if(!read_uint16(e->fin, /*big_endian=*/true, &x, e->inbasefilename))
return false;
bps = (unsigned)x;
shift = (bps%8)? 8-(bps%8) : 0; /* SSND data is always byte-aligned, left-justified but format_input() will double-check */
bps += shift;
/* sample rate */
if(!read_sane_extended(e->fin, &xx, e->inbasefilename))
return false;
sample_rate = xx;
/* check compression type for AIFF-C */
if(is_aifc) {
if(!read_uint32(e->fin, /*big_endian=*/true, &xx, e->inbasefilename))
return false;
if(xx == 0x736F7774) /* "sowt" */
e->info.is_big_endian = false;
else if(xx == 0x4E4F4E45) /* "NONE" */
; /* nothing to do, we already default to big-endian */
else {
flac__utils_printf(stderr, 1, "%s: ERROR: can't handle AIFF-C compression type \"%c%c%c%c\"\n", e->inbasefilename, (char)(xx>>24), (char)((xx>>16)&8), (char)((xx>>8)&8), (char)(xx&8));
return false;
}
}
/* set channel mapping */
/* FLAC order follows SMPTE and WAVEFORMATEXTENSIBLE but with fewer channels, which are: */
/* front left, front right, center, LFE, back left, back right, surround left, surround right */
/* specs say the channel ordering is:
* 1 2 3 4 5 6
* ___________________________________________________
* 2 stereo l r
* 3 l r c
* 4 l c r S
* quad (ambiguous with 4ch) Fl Fr Bl Br
* 5 Fl Fr Fc Sl Sr
* 6 l lc c r rc S
* l:left r:right c:center Fl:front-left Fr:front-right Bl:back-left Br:back-right Lc:left-center Rc:right-center S:surround
* so we only have unambiguous mappings for 2, 3, and 5 channels
*/
if(
options.channel_map_none ||
channels == 1 || /* 1 channel: (mono) */
channels == 2 || /* 2 channels: left, right */
channels == 3 || /* 3 channels: left, right, center */
channels == 5 /* 5 channels: front left, front right, center, surround left, surround right */
) {
/* keep default channel order */
}
else {
flac__utils_printf(stderr, 1, "%s: ERROR: unsupported number of channels %u for AIFF\n", e->inbasefilename, channels);
return false;
}
e->info.bytes_per_wide_sample = channels * (bps / 8);
/* skip any extra data in the COMM chunk */
if(!fskip_ahead(e->fin, skip)) {
flac__utils_printf(stderr, 1, "%s: ERROR during read while skipping over extra COMM data\n", e->inbasefilename);
return false;
}
got_comm_chunk = true;
}
else if(!memcmp(chunk_id, "SSND", 4) && !got_ssnd_chunk) { /* sound data chunk */
FLAC__uint32 xx;
FLAC__uint64 data_bytes;
unsigned offset = 0;
if(!got_comm_chunk) {
flac__utils_printf(stderr, 1, "%s: ERROR: got 'SSND' chunk before 'COMM' chunk\n", e->inbasefilename);
return false;
}
/* SSND chunk size */
if(!read_uint32(e->fin, /*big_endian=*/true, &xx, e->inbasefilename))
return false;
data_bytes = xx;
if(options.ignore_chunk_sizes) {
FLAC__ASSERT(!options.sector_align);
if(data_bytes) {
flac__utils_printf(stderr, 1, "%s: WARNING: 'SSND' chunk has non-zero size, using --ignore-chunk-sizes is probably a bad idea\n", e->inbasefilename, chunk_id);
if(e->treat_warnings_as_errors)
return false;
}
data_bytes = (FLAC__uint64)0 - (FLAC__uint64)e->info.bytes_per_wide_sample; /* max out data_bytes; we'll use EOF as signal to stop reading */
}
else if(data_bytes <= 8) {
flac__utils_printf(stderr, 1, "%s: ERROR: 'SSND' chunk has size <= 8\n", e->inbasefilename);
return false;
}
else {
data_bytes -= 8; /* discount the offset and block size fields */
}
/* offset */
if(!read_uint32(e->fin, /*big_endian=*/true, &xx, e->inbasefilename))
return false;
offset = xx;
data_bytes -= offset;
/* block size */
if(!read_uint32(e->fin, /*big_endian=*/true, &xx, e->inbasefilename))
return false;
if(xx && !options.ignore_chunk_sizes)
data_bytes -= (xx - (data_bytes % xx));
if(options.ignore_chunk_sizes) {
if(xx) {
flac__utils_printf(stderr, 1, "%s: WARNING: 'SSND' chunk has non-zero blocksize, using --ignore-chunk-sizes is probably a bad idea\n", e->inbasefilename, chunk_id);
if(e->treat_warnings_as_errors)
return false;
}
}
/* skip any SSND offset bytes */
if(!fskip_ahead(e->fin, offset)) {
flac__utils_printf(stderr, 1, "%s: ERROR: skipping offset in SSND chunk\n", e->inbasefilename);
return false;
}
e->fmt.iff.data_bytes = data_bytes;
got_ssnd_chunk = true;
}
else {
FLAC__uint32 xx;
if(!options.format_options.iff.foreign_metadata) {
flac__utils_printf(stderr, 1, "%s: WARNING: skipping unknown chunk '%s' (use --keep-foreign-metadata to keep)\n", e->inbasefilename, chunk_id);
if(e->treat_warnings_as_errors)
return false;
}
/* chunk size */
if(!read_uint32(e->fin, /*big_endian=*/true, &xx, e->inbasefilename))
return false;
else {
unsigned long skip = xx + (xx & 1);
FLAC__ASSERT(skip <= LONG_MAX);
if(!fskip_ahead(e->fin, skip)) {
flac__utils_printf(stderr, 1, "%s: ERROR during read while skipping over chunk\n", e->inbasefilename);
return false;
}
}
}
}
if(!got_comm_chunk) {
flac__utils_printf(stderr, 1, "%s: ERROR: didn't find COMM chunk\n", e->inbasefilename);
return false;
}
if(!got_ssnd_chunk && sample_frames) {
flac__utils_printf(stderr, 1, "%s: ERROR: didn't find SSND chunk\n", e->inbasefilename);
return false;
}
e->info.sample_rate = sample_rate;
e->info.channels = channels;
e->info.bits_per_sample = bps;
e->info.shift = shift;
e->info.channel_mask = channel_mask;
return true;
}
static FLAC__bool get_sample_info_flac(EncoderSession *e)
{
if (!(
FLAC__stream_decoder_set_md5_checking(e->fmt.flac.decoder, false) &&
FLAC__stream_decoder_set_metadata_respond_all(e->fmt.flac.decoder)
)) {
flac__utils_printf(stderr, 1, "%s: ERROR: setting up decoder for FLAC input\n", e->inbasefilename);
return false;
}
if (e->format == FORMAT_OGGFLAC) {
if (FLAC__stream_decoder_init_ogg_stream(e->fmt.flac.decoder, flac_decoder_read_callback, flac_decoder_seek_callback, flac_decoder_tell_callback, flac_decoder_length_callback, flac_decoder_eof_callback, flac_decoder_write_callback, flac_decoder_metadata_callback, flac_decoder_error_callback, /*client_data=*/e) != FLAC__STREAM_DECODER_INIT_STATUS_OK) {
flac__utils_printf(stderr, 1, "%s: ERROR: initializing decoder for Ogg FLAC input, state = %s\n", e->inbasefilename, FLAC__stream_decoder_get_resolved_state_string(e->fmt.flac.decoder));
return false;
}
}
else if (FLAC__stream_decoder_init_stream(e->fmt.flac.decoder, flac_decoder_read_callback, flac_decoder_seek_callback, flac_decoder_tell_callback, flac_decoder_length_callback, flac_decoder_eof_callback, flac_decoder_write_callback, flac_decoder_metadata_callback, flac_decoder_error_callback, /*client_data=*/e) != FLAC__STREAM_DECODER_INIT_STATUS_OK) {
flac__utils_printf(stderr, 1, "%s: ERROR: initializing decoder for FLAC input, state = %s\n", e->inbasefilename, FLAC__stream_decoder_get_resolved_state_string(e->fmt.flac.decoder));
return false;
}
if (!FLAC__stream_decoder_process_until_end_of_metadata(e->fmt.flac.decoder) || e->fmt.flac.client_data.fatal_error) {
if (e->fmt.flac.client_data.fatal_error)
flac__utils_printf(stderr, 1, "%s: ERROR: out of memory or too many metadata blocks while reading metadata in FLAC input\n", e->inbasefilename);
else
flac__utils_printf(stderr, 1, "%s: ERROR: reading metadata in FLAC input, state = %s\n", e->inbasefilename, FLAC__stream_decoder_get_resolved_state_string(e->fmt.flac.decoder));
return false;
}
if (e->fmt.flac.client_data.num_metadata_blocks == 0) {
flac__utils_printf(stderr, 1, "%s: ERROR: reading metadata in FLAC input, got no metadata blocks\n", e->inbasefilename);
return false;
}
else if (e->fmt.flac.client_data.metadata_blocks[0]->type != FLAC__METADATA_TYPE_STREAMINFO) {
flac__utils_printf(stderr, 1, "%s: ERROR: reading metadata in FLAC input, first metadata block is not STREAMINFO\n", e->inbasefilename);
return false;
}
else if (e->fmt.flac.client_data.metadata_blocks[0]->data.stream_info.total_samples == 0) {
flac__utils_printf(stderr, 1, "%s: ERROR: FLAC input has STREAMINFO with unknown total samples which is not supported\n", e->inbasefilename);
return false;
}
e->info.sample_rate = e->fmt.flac.client_data.metadata_blocks[0]->data.stream_info.sample_rate;
e->info.channels = e->fmt.flac.client_data.metadata_blocks[0]->data.stream_info.channels;
e->info.bits_per_sample = e->fmt.flac.client_data.metadata_blocks[0]->data.stream_info.bits_per_sample;
e->info.shift = 0;
e->info.bytes_per_wide_sample = 0;
e->info.is_unsigned_samples = false; /* not applicable for FLAC input */
e->info.is_big_endian = false; /* not applicable for FLAC input */
e->info.channel_mask = 0;
return true;
}
/*
* public routines
*/
int flac__encode_file(FILE *infile, FLAC__off_t infilesize, const char *infilename, const char *outfilename, const FLAC__byte *lookahead, unsigned lookahead_length, encode_options_t options)
{
EncoderSession encoder_session;
size_t channel_map[FLAC__MAX_CHANNELS];
int info_align_carry = -1, info_align_zero = -1;
if(!EncoderSession_construct(&encoder_session, options, infilesize, infile, infilename, outfilename, lookahead, lookahead_length))
return 1;
/* initialize default channel map that preserves channel order */
{
size_t i;
for(i = 0; i < sizeof(channel_map)/sizeof(channel_map[0]); i++)
channel_map[i] = i;
}
/* read foreign metadata if requested */
if(EncoderSession_format_is_iff(&encoder_session) && options.format_options.iff.foreign_metadata) {
const char *error;
if(!(
options.format == FORMAT_WAVE || options.format == FORMAT_RF64?
flac__foreign_metadata_read_from_wave(options.format_options.iff.foreign_metadata, infilename, &error) :
options.format == FORMAT_WAVE64?
flac__foreign_metadata_read_from_wave64(options.format_options.iff.foreign_metadata, infilename, &error) :
flac__foreign_metadata_read_from_aiff(options.format_options.iff.foreign_metadata, infilename, &error)
)) {
flac__utils_printf(stderr, 1, "%s: ERROR reading foreign metadata: %s\n", encoder_session.inbasefilename, error);
return EncoderSession_finish_error(&encoder_session);
}
}
/* initialize encoder session with info about the audio (channels/bps/resolution/endianness/etc) */
switch(options.format) {
case FORMAT_RAW:
if(!get_sample_info_raw(&encoder_session, options))
return EncoderSession_finish_error(&encoder_session);
break;
case FORMAT_WAVE:
case FORMAT_WAVE64:
case FORMAT_RF64:
if(!get_sample_info_wave(&encoder_session, options))
return EncoderSession_finish_error(&encoder_session);
break;
case FORMAT_AIFF:
case FORMAT_AIFF_C:
if(!get_sample_info_aiff(&encoder_session, options))
return EncoderSession_finish_error(&encoder_session);
break;
case FORMAT_FLAC:
case FORMAT_OGGFLAC:
/*
* set up FLAC decoder for the input
*/
if (0 == (encoder_session.fmt.flac.decoder = FLAC__stream_decoder_new())) {
flac__utils_printf(stderr, 1, "%s: ERROR: creating decoder for FLAC input\n", encoder_session.inbasefilename);
return EncoderSession_finish_error(&encoder_session);
}
if(!get_sample_info_flac(&encoder_session))
return EncoderSession_finish_error(&encoder_session);
break;
default:
FLAC__ASSERT(0);
/* double protection */
return EncoderSession_finish_error(&encoder_session);
}
/* some more checks */
if(encoder_session.info.channels == 0 || encoder_session.info.channels > FLAC__MAX_CHANNELS) {
flac__utils_printf(stderr, 1, "%s: ERROR: unsupported number of channels %u\n", encoder_session.inbasefilename, encoder_session.info.channels);
return EncoderSession_finish_error(&encoder_session);
}
if(!FLAC__format_sample_rate_is_valid(encoder_session.info.sample_rate)) {
flac__utils_printf(stderr, 1, "%s: ERROR: unsupported sample rate %u\n", encoder_session.inbasefilename, encoder_session.info.sample_rate);
return EncoderSession_finish_error(&encoder_session);
}
if(encoder_session.info.bits_per_sample-encoder_session.info.shift < 4 || encoder_session.info.bits_per_sample-encoder_session.info.shift > 24) {
flac__utils_printf(stderr, 1, "%s: ERROR: unsupported bits-per-sample %u\n", encoder_session.inbasefilename, encoder_session.info.bits_per_sample-encoder_session.info.shift);
return EncoderSession_finish_error(&encoder_session);
}
if(options.sector_align) {
if(encoder_session.info.channels != 2) {
flac__utils_printf(stderr, 1, "%s: ERROR: file has %u channels, must be 2 for --sector-align\n", encoder_session.inbasefilename, encoder_session.info.channels);
return EncoderSession_finish_error(&encoder_session);
}
if(encoder_session.info.sample_rate != 44100) {
flac__utils_printf(stderr, 1, "%s: ERROR: file's sample rate is %u, must be 44100 for --sector-align\n", encoder_session.inbasefilename, encoder_session.info.sample_rate);
return EncoderSession_finish_error(&encoder_session);
}
if(encoder_session.info.bits_per_sample-encoder_session.info.shift != 16) {
flac__utils_printf(stderr, 1, "%s: ERROR: file has %u bits-per-sample, must be 16 for --sector-align\n", encoder_session.inbasefilename, encoder_session.info.bits_per_sample-encoder_session.info.shift);
return EncoderSession_finish_error(&encoder_session);
}
}
{
FLAC__uint64 total_samples_in_input; /* WATCHOUT: may be 0 to mean "unknown" */
FLAC__uint64 skip;
FLAC__uint64 until; /* a value of 0 mean end-of-stream (i.e. --until=-0) */
unsigned align_remainder = 0;
switch(options.format) {
case FORMAT_RAW:
if(infilesize < 0)
total_samples_in_input = 0;
else
total_samples_in_input = (FLAC__uint64)infilesize / encoder_session.info.bytes_per_wide_sample + *options.align_reservoir_samples;
break;
case FORMAT_WAVE:
case FORMAT_WAVE64:
case FORMAT_RF64:
case FORMAT_AIFF:
case FORMAT_AIFF_C:
/* truncation in the division removes any padding byte that was counted in encoder_session.fmt.iff.data_bytes */
total_samples_in_input = encoder_session.fmt.iff.data_bytes / encoder_session.info.bytes_per_wide_sample + *options.align_reservoir_samples;
break;
case FORMAT_FLAC:
case FORMAT_OGGFLAC:
total_samples_in_input = encoder_session.fmt.flac.client_data.metadata_blocks[0]->data.stream_info.total_samples + *options.align_reservoir_samples;
break;
default:
FLAC__ASSERT(0);
/* double protection */
return EncoderSession_finish_error(&encoder_session);
}
/*
* now that we know the sample rate, canonicalize the
* --skip string to an absolute sample number:
*/
flac__utils_canonicalize_skip_until_specification(&options.skip_specification, encoder_session.info.sample_rate);
FLAC__ASSERT(options.skip_specification.value.samples >= 0);
skip = (FLAC__uint64)options.skip_specification.value.samples;
FLAC__ASSERT(!options.sector_align || (options.format != FORMAT_FLAC && options.format != FORMAT_OGGFLAC && skip == 0));
/* *options.align_reservoir_samples will be 0 unless --sector-align is used */
FLAC__ASSERT(options.sector_align || *options.align_reservoir_samples == 0);
/*
* now that we possibly know the input size, canonicalize the
* --until string to an absolute sample number:
*/
if(!canonicalize_until_specification(&options.until_specification, encoder_session.inbasefilename, encoder_session.info.sample_rate, skip, total_samples_in_input))
return EncoderSession_finish_error(&encoder_session);
until = (FLAC__uint64)options.until_specification.value.samples;
FLAC__ASSERT(!options.sector_align || until == 0);
/* adjust encoding parameters based on skip and until values */
switch(options.format) {
case FORMAT_RAW:
infilesize -= (FLAC__off_t)skip * encoder_session.info.bytes_per_wide_sample;
encoder_session.total_samples_to_encode = total_samples_in_input - skip;
break;
case FORMAT_WAVE:
case FORMAT_WAVE64:
case FORMAT_RF64:
case FORMAT_AIFF:
case FORMAT_AIFF_C:
encoder_session.fmt.iff.data_bytes -= skip * encoder_session.info.bytes_per_wide_sample;
if(options.ignore_chunk_sizes) {
encoder_session.total_samples_to_encode = 0;
flac__utils_printf(stderr, 2, "(No runtime statistics possible; please wait for encoding to finish...)\n");
FLAC__ASSERT(0 == until);
}
else {
encoder_session.total_samples_to_encode = total_samples_in_input - skip;
}
break;
case FORMAT_FLAC:
case FORMAT_OGGFLAC:
encoder_session.total_samples_to_encode = total_samples_in_input - skip;
break;
default:
FLAC__ASSERT(0);
/* double protection */
return EncoderSession_finish_error(&encoder_session);
}
if(until > 0) {
const FLAC__uint64 trim = total_samples_in_input - until;
FLAC__ASSERT(total_samples_in_input > 0);
FLAC__ASSERT(!options.sector_align);
if(options.format == FORMAT_RAW)
infilesize -= (FLAC__off_t)trim * encoder_session.info.bytes_per_wide_sample;
else if(EncoderSession_format_is_iff(&encoder_session))
encoder_session.fmt.iff.data_bytes -= trim * encoder_session.info.bytes_per_wide_sample;
encoder_session.total_samples_to_encode -= trim;
}
if(options.sector_align && (options.format != FORMAT_RAW || infilesize >=0)) { /* for RAW, need to know the filesize */
FLAC__ASSERT(skip == 0); /* asserted above too, but lest we forget */
align_remainder = (unsigned)(encoder_session.total_samples_to_encode % 588);
if(options.is_last_file)
encoder_session.total_samples_to_encode += (588-align_remainder); /* will pad with zeroes */
else
encoder_session.total_samples_to_encode -= align_remainder; /* will stop short and carry over to next file */
}
switch(options.format) {
case FORMAT_RAW:
encoder_session.unencoded_size = encoder_session.total_samples_to_encode * encoder_session.info.bytes_per_wide_sample;
break;
case FORMAT_WAVE:
/* +44 for the size of the WAVE headers; this is just an estimate for the progress indicator and doesn't need to be exact */
encoder_session.unencoded_size = encoder_session.total_samples_to_encode * encoder_session.info.bytes_per_wide_sample + 44;
break;
case FORMAT_WAVE64:
/* +44 for the size of the WAVE headers; this is just an estimate for the progress indicator and doesn't need to be exact */
encoder_session.unencoded_size = encoder_session.total_samples_to_encode * encoder_session.info.bytes_per_wide_sample + 104;
break;
case FORMAT_RF64:
/* +72 for the size of the RF64 headers; this is just an estimate for the progress indicator and doesn't need to be exact */
encoder_session.unencoded_size = encoder_session.total_samples_to_encode * encoder_session.info.bytes_per_wide_sample + 80;
break;
case FORMAT_AIFF:
case FORMAT_AIFF_C:
/* +54 for the size of the AIFF headers; this is just an estimate for the progress indicator and doesn't need to be exact */
encoder_session.unencoded_size = encoder_session.total_samples_to_encode * encoder_session.info.bytes_per_wide_sample + 54;
break;
case FORMAT_FLAC:
case FORMAT_OGGFLAC:
if(infilesize < 0)
/* if we don't know, use 0 as hint to progress indicator (which is the only place this is used): */
encoder_session.unencoded_size = 0;
else if(skip == 0 && until == 0)
encoder_session.unencoded_size = (FLAC__uint64)infilesize;
else if(total_samples_in_input)
encoder_session.unencoded_size = (FLAC__uint64)infilesize * encoder_session.total_samples_to_encode / total_samples_in_input;
else
encoder_session.unencoded_size = (FLAC__uint64)infilesize;
break;
default:
FLAC__ASSERT(0);
/* double protection */
return EncoderSession_finish_error(&encoder_session);
}
if(encoder_session.total_samples_to_encode == 0)
flac__utils_printf(stderr, 2, "(No runtime statistics possible; please wait for encoding to finish...)\n");
if(options.format == FORMAT_FLAC || options.format == FORMAT_OGGFLAC)
encoder_session.fmt.flac.client_data.samples_left_to_process = encoder_session.total_samples_to_encode;
stats_new_file();
/* init the encoder */
if(!EncoderSession_init_encoder(&encoder_session, options))
return EncoderSession_finish_error(&encoder_session);
/* skip over any samples as requested */
if(skip > 0) {
switch(options.format) {
case FORMAT_RAW:
{
unsigned skip_bytes = encoder_session.info.bytes_per_wide_sample * (unsigned)skip;
if(skip_bytes > lookahead_length) {
skip_bytes -= lookahead_length;
lookahead_length = 0;
if(!fskip_ahead(encoder_session.fin, skip_bytes)) {
flac__utils_printf(stderr, 1, "%s: ERROR during read while skipping samples\n", encoder_session.inbasefilename);
return EncoderSession_finish_error(&encoder_session);
}
}
else {
lookahead += skip_bytes;
lookahead_length -= skip_bytes;
}
}
break;
case FORMAT_WAVE:
case FORMAT_WAVE64:
case FORMAT_RF64:
case FORMAT_AIFF:
case FORMAT_AIFF_C:
if(!fskip_ahead(encoder_session.fin, skip * encoder_session.info.bytes_per_wide_sample)) {
flac__utils_printf(stderr, 1, "%s: ERROR during read while skipping samples\n", encoder_session.inbasefilename);
return EncoderSession_finish_error(&encoder_session);
}
break;
case FORMAT_FLAC:
case FORMAT_OGGFLAC:
/*
* have to wait until the FLAC encoder is set up for writing
* before any seeking in the input FLAC file, because the seek
* itself will usually call the decoder's write callback, and
* our decoder's write callback passes samples to our FLAC
* encoder
*/
if(!FLAC__stream_decoder_seek_absolute(encoder_session.fmt.flac.decoder, skip)) {
flac__utils_printf(stderr, 1, "%s: ERROR while skipping samples, FLAC decoder state = %s\n", encoder_session.inbasefilename, FLAC__stream_decoder_get_resolved_state_string(encoder_session.fmt.flac.decoder));
return EncoderSession_finish_error(&encoder_session);
}
break;
default:
FLAC__ASSERT(0);
/* double protection */
return EncoderSession_finish_error(&encoder_session);
}
}
/*
* first do any samples in the reservoir
*/
if(options.sector_align && *options.align_reservoir_samples > 0) {
FLAC__ASSERT(options.format != FORMAT_FLAC && options.format != FORMAT_OGGFLAC); /* check again */
if(!EncoderSession_process(&encoder_session, (const FLAC__int32 * const *)options.align_reservoir, *options.align_reservoir_samples)) {
print_error_with_state(&encoder_session, "ERROR during encoding");
return EncoderSession_finish_error(&encoder_session);
}
}
/*
* decrement infilesize or the data_bytes counter if we need to align the file
*/
if(options.sector_align) {
if(options.is_last_file) {
*options.align_reservoir_samples = 0;
}
else {
*options.align_reservoir_samples = align_remainder;
if(options.format == FORMAT_RAW) {
FLAC__ASSERT(infilesize >= 0);
infilesize -= (FLAC__off_t)((*options.align_reservoir_samples) * encoder_session.info.bytes_per_wide_sample);
FLAC__ASSERT(infilesize >= 0);
}
else if(EncoderSession_format_is_iff(&encoder_session))
encoder_session.fmt.iff.data_bytes -= (*options.align_reservoir_samples) * encoder_session.info.bytes_per_wide_sample;
}
}
/*
* now do samples from the file
*/
switch(options.format) {
case FORMAT_RAW:
if(infilesize < 0) {
size_t bytes_read;
while(!feof(infile)) {
if(lookahead_length > 0) {
FLAC__ASSERT(lookahead_length < CHUNK_OF_SAMPLES * encoder_session.info.bytes_per_wide_sample);
memcpy(ucbuffer_, lookahead, lookahead_length);
bytes_read = fread(ucbuffer_+lookahead_length, sizeof(unsigned char), CHUNK_OF_SAMPLES * encoder_session.info.bytes_per_wide_sample - lookahead_length, infile) + lookahead_length;
if(ferror(infile)) {
flac__utils_printf(stderr, 1, "%s: ERROR during read\n", encoder_session.inbasefilename);
return EncoderSession_finish_error(&encoder_session);
}
lookahead_length = 0;
}
else
bytes_read = fread(ucbuffer_, sizeof(unsigned char), CHUNK_OF_SAMPLES * encoder_session.info.bytes_per_wide_sample, infile);
if(bytes_read == 0) {
if(ferror(infile)) {
flac__utils_printf(stderr, 1, "%s: ERROR during read\n", encoder_session.inbasefilename);
return EncoderSession_finish_error(&encoder_session);
}
}
else if(bytes_read % encoder_session.info.bytes_per_wide_sample != 0) {
flac__utils_printf(stderr, 1, "%s: ERROR: got partial sample\n", encoder_session.inbasefilename);
return EncoderSession_finish_error(&encoder_session);
}
else {
unsigned wide_samples = bytes_read / encoder_session.info.bytes_per_wide_sample;
if(!format_input(input_, wide_samples, encoder_session.info.is_big_endian, encoder_session.info.is_unsigned_samples, encoder_session.info.channels, encoder_session.info.bits_per_sample, encoder_session.info.shift, channel_map))
return EncoderSession_finish_error(&encoder_session);
if(!EncoderSession_process(&encoder_session, (const FLAC__int32 * const *)input_, wide_samples)) {
print_error_with_state(&encoder_session, "ERROR during encoding");
return EncoderSession_finish_error(&encoder_session);
}
}
}
}
else {
size_t bytes_read;
const FLAC__uint64 max_input_bytes = infilesize;
FLAC__uint64 total_input_bytes_read = 0;
while(total_input_bytes_read < max_input_bytes) {
{
size_t wanted = (CHUNK_OF_SAMPLES * encoder_session.info.bytes_per_wide_sample);
wanted = (size_t) min((FLAC__uint64)wanted, max_input_bytes - total_input_bytes_read);
if(lookahead_length > 0) {
FLAC__ASSERT(lookahead_length <= wanted);
memcpy(ucbuffer_, lookahead, lookahead_length);
wanted -= lookahead_length;
bytes_read = lookahead_length;
if(wanted > 0) {
bytes_read += fread(ucbuffer_+lookahead_length, sizeof(unsigned char), wanted, infile);
if(ferror(infile)) {
flac__utils_printf(stderr, 1, "%s: ERROR during read\n", encoder_session.inbasefilename);
return EncoderSession_finish_error(&encoder_session);
}
}
lookahead_length = 0;
}
else
bytes_read = fread(ucbuffer_, sizeof(unsigned char), wanted, infile);
}
if(bytes_read == 0) {
if(ferror(infile)) {
flac__utils_printf(stderr, 1, "%s: ERROR during read\n", encoder_session.inbasefilename);
return EncoderSession_finish_error(&encoder_session);
}
else if(feof(infile)) {
flac__utils_printf(stderr, 1, "%s: WARNING: unexpected EOF; expected %" PRIu64 " samples, got %" PRIu64 " samples\n", encoder_session.inbasefilename, encoder_session.total_samples_to_encode, encoder_session.samples_written);
if(encoder_session.treat_warnings_as_errors)
return EncoderSession_finish_error(&encoder_session);
total_input_bytes_read = max_input_bytes;
}
}
else {
if(bytes_read % encoder_session.info.bytes_per_wide_sample != 0) {
flac__utils_printf(stderr, 1, "%s: ERROR: got partial sample\n", encoder_session.inbasefilename);
return EncoderSession_finish_error(&encoder_session);
}
else {
unsigned wide_samples = bytes_read / encoder_session.info.bytes_per_wide_sample;
if(!format_input(input_, wide_samples, encoder_session.info.is_big_endian, encoder_session.info.is_unsigned_samples, encoder_session.info.channels, encoder_session.info.bits_per_sample, encoder_session.info.shift, channel_map))
return EncoderSession_finish_error(&encoder_session);
if(!EncoderSession_process(&encoder_session, (const FLAC__int32 * const *)input_, wide_samples)) {
print_error_with_state(&encoder_session, "ERROR during encoding");
return EncoderSession_finish_error(&encoder_session);
}
total_input_bytes_read += bytes_read;
}
}
}
}
break;
case FORMAT_WAVE:
case FORMAT_WAVE64:
case FORMAT_RF64:
case FORMAT_AIFF:
case FORMAT_AIFF_C:
while(encoder_session.fmt.iff.data_bytes > 0) {
const size_t bytes_to_read = (size_t)min(
encoder_session.fmt.iff.data_bytes,
(FLAC__uint64)CHUNK_OF_SAMPLES * (FLAC__uint64)encoder_session.info.bytes_per_wide_sample
);
size_t bytes_read = fread(ucbuffer_, sizeof(unsigned char), bytes_to_read, infile);
if(bytes_read == 0) {
if(ferror(infile)) {
flac__utils_printf(stderr, 1, "%s: ERROR during read\n", encoder_session.inbasefilename);
return EncoderSession_finish_error(&encoder_session);
}
else if(feof(infile)) {
if(options.ignore_chunk_sizes) {
flac__utils_printf(stderr, 1, "%s: INFO: hit EOF with --ignore-chunk-sizes, got %" PRIu64 " samples\n", encoder_session.inbasefilename, encoder_session.samples_written);
}
else {
flac__utils_printf(stderr, 1, "%s: WARNING: unexpected EOF; expected %" PRIu64 " samples, got %" PRIu64 " samples\n", encoder_session.inbasefilename, encoder_session.total_samples_to_encode, encoder_session.samples_written);
if(encoder_session.treat_warnings_as_errors)
return EncoderSession_finish_error(&encoder_session);
}
encoder_session.fmt.iff.data_bytes = 0;
}
}
else {
if(bytes_read % encoder_session.info.bytes_per_wide_sample != 0) {
flac__utils_printf(stderr, 1, "%s: ERROR: got partial sample\n", encoder_session.inbasefilename);
return EncoderSession_finish_error(&encoder_session);
}
else {
unsigned wide_samples = bytes_read / encoder_session.info.bytes_per_wide_sample;
if(!format_input(input_, wide_samples, encoder_session.info.is_big_endian, encoder_session.info.is_unsigned_samples, encoder_session.info.channels, encoder_session.info.bits_per_sample, encoder_session.info.shift, channel_map))
return EncoderSession_finish_error(&encoder_session);
if(!EncoderSession_process(&encoder_session, (const FLAC__int32 * const *)input_, wide_samples)) {
print_error_with_state(&encoder_session, "ERROR during encoding");
return EncoderSession_finish_error(&encoder_session);
}
encoder_session.fmt.iff.data_bytes -= bytes_read;
}
}
}
break;
case FORMAT_FLAC:
case FORMAT_OGGFLAC:
while(!encoder_session.fmt.flac.client_data.fatal_error && encoder_session.fmt.flac.client_data.samples_left_to_process > 0) {
/* We can also hit the end of stream without samples_left_to_process
* going to 0 if there are errors and continue_through_decode_errors
* is on, so we want to break in that case too:
*/
if(encoder_session.continue_through_decode_errors && FLAC__stream_decoder_get_state(encoder_session.fmt.flac.decoder) == FLAC__STREAM_DECODER_END_OF_STREAM)
break;
if(!FLAC__stream_decoder_process_single(encoder_session.fmt.flac.decoder)) {
flac__utils_printf(stderr, 1, "%s: ERROR: while decoding FLAC input, state = %s\n", encoder_session.inbasefilename, FLAC__stream_decoder_get_resolved_state_string(encoder_session.fmt.flac.decoder));
return EncoderSession_finish_error(&encoder_session);
}
}
if(encoder_session.fmt.flac.client_data.fatal_error) {
flac__utils_printf(stderr, 1, "%s: ERROR: while decoding FLAC input, state = %s\n", encoder_session.inbasefilename, FLAC__stream_decoder_get_resolved_state_string(encoder_session.fmt.flac.decoder));
return EncoderSession_finish_error(&encoder_session);
}
break;
default:
FLAC__ASSERT(0);
/* double protection */
return EncoderSession_finish_error(&encoder_session);
}
/*
* now read unaligned samples into reservoir or pad with zeroes if necessary
*/
if(options.sector_align) {
if(options.is_last_file) {
unsigned wide_samples = 588 - align_remainder;
if(wide_samples < 588) {
unsigned channel;
info_align_zero = wide_samples;
for(channel = 0; channel < encoder_session.info.channels; channel++)
memset(input_[channel], 0, sizeof(input_[0][0]) * wide_samples);
if(!EncoderSession_process(&encoder_session, (const FLAC__int32 * const *)input_, wide_samples)) {
print_error_with_state(&encoder_session, "ERROR during encoding");
return EncoderSession_finish_error(&encoder_session);
}
}
}
else {
if(*options.align_reservoir_samples > 0) {
size_t bytes_read;
FLAC__ASSERT(CHUNK_OF_SAMPLES >= 588);
bytes_read = fread(ucbuffer_, sizeof(unsigned char), (*options.align_reservoir_samples) * encoder_session.info.bytes_per_wide_sample, infile);
if(bytes_read == 0 && ferror(infile)) {
flac__utils_printf(stderr, 1, "%s: ERROR during read\n", encoder_session.inbasefilename);
return EncoderSession_finish_error(&encoder_session);
}
else if(bytes_read != (*options.align_reservoir_samples) * encoder_session.info.bytes_per_wide_sample) {
flac__utils_printf(stderr, 1, "%s: WARNING: unexpected EOF; read %" PRIu64 " bytes; expected %" PRIu64 " samples, got %" PRIu64 " samples\n", encoder_session.inbasefilename, bytes_read, encoder_session.total_samples_to_encode, encoder_session.samples_written);
if(encoder_session.treat_warnings_as_errors)
return EncoderSession_finish_error(&encoder_session);
}
else {
info_align_carry = *options.align_reservoir_samples;
if(!format_input(options.align_reservoir, *options.align_reservoir_samples, encoder_session.info.is_big_endian, encoder_session.info.is_unsigned_samples, encoder_session.info.channels, encoder_session.info.bits_per_sample, encoder_session.info.shift, channel_map))
return EncoderSession_finish_error(&encoder_session);
}
}
}
}
}
return EncoderSession_finish_ok(
&encoder_session,
info_align_carry,
info_align_zero,
EncoderSession_format_is_iff(&encoder_session)? options.format_options.iff.foreign_metadata : 0
);
}
FLAC__bool EncoderSession_construct(EncoderSession *e, encode_options_t options, FLAC__off_t infilesize, FILE *infile, const char *infilename, const char *outfilename, const FLAC__byte *lookahead, unsigned lookahead_length)
{
unsigned i;
FLAC__uint32 test = 1;
/*
* initialize globals
*/
is_big_endian_host_ = (*((FLAC__byte*)(&test)))? false : true;
for(i = 0; i < FLAC__MAX_CHANNELS; i++)
input_[i] = &(in_[i][0]);
/*
* initialize instance
*/
#if FLAC__HAS_OGG
e->use_ogg = options.use_ogg;
#endif
e->verify = options.verify;
e->treat_warnings_as_errors = options.treat_warnings_as_errors;
e->continue_through_decode_errors = options.continue_through_decode_errors;
e->is_stdout = (0 == strcmp(outfilename, "-"));
e->outputfile_opened = false;
e->inbasefilename = grabbag__file_get_basename(infilename);
e->infilename = infilename;
e->outfilename = outfilename;
e->total_samples_to_encode = 0;
e->unencoded_size = 0;
e->bytes_written = 0;
e->samples_written = 0;
e->stats_mask = 0;
memset(&e->info, 0, sizeof(e->info));
e->format = options.format;
switch(options.format) {
case FORMAT_RAW:
break;
case FORMAT_WAVE:
case FORMAT_WAVE64:
case FORMAT_RF64:
case FORMAT_AIFF:
case FORMAT_AIFF_C:
e->fmt.iff.data_bytes = 0;
break;
case FORMAT_FLAC:
case FORMAT_OGGFLAC:
e->fmt.flac.decoder = 0;
e->fmt.flac.client_data.filesize = infilesize;
e->fmt.flac.client_data.lookahead = lookahead;
e->fmt.flac.client_data.lookahead_length = lookahead_length;
e->fmt.flac.client_data.num_metadata_blocks = 0;
e->fmt.flac.client_data.samples_left_to_process = 0;
e->fmt.flac.client_data.fatal_error = false;
break;
default:
FLAC__ASSERT(0);
/* double protection */
return false;
}
e->encoder = 0;
e->fin = infile;
e->seek_table_template = 0;
if(0 == (e->seek_table_template = FLAC__metadata_object_new(FLAC__METADATA_TYPE_SEEKTABLE))) {
flac__utils_printf(stderr, 1, "%s: ERROR allocating memory for seek table\n", e->inbasefilename);
return false;
}
e->encoder = FLAC__stream_encoder_new();
if(0 == e->encoder) {
flac__utils_printf(stderr, 1, "%s: ERROR creating the encoder instance\n", e->inbasefilename);
EncoderSession_destroy(e);
return false;
}
return true;
}
void EncoderSession_destroy(EncoderSession *e)
{
if(e->format == FORMAT_FLAC || e->format == FORMAT_OGGFLAC) {
size_t i;
if(e->fmt.flac.decoder)
FLAC__stream_decoder_delete(e->fmt.flac.decoder);
e->fmt.flac.decoder = 0;
for(i = 0; i < e->fmt.flac.client_data.num_metadata_blocks; i++)
FLAC__metadata_object_delete(e->fmt.flac.client_data.metadata_blocks[i]);
e->fmt.flac.client_data.num_metadata_blocks = 0;
}
if(e->fin != stdin)
fclose(e->fin);
if(0 != e->encoder) {
FLAC__stream_encoder_delete(e->encoder);
e->encoder = 0;
}
if(0 != e->seek_table_template) {
FLAC__metadata_object_delete(e->seek_table_template);
e->seek_table_template = 0;
}
}
int EncoderSession_finish_ok(EncoderSession *e, int info_align_carry, int info_align_zero, foreign_metadata_t *foreign_metadata)
{
FLAC__StreamEncoderState fse_state = FLAC__STREAM_ENCODER_OK;
int ret = 0;
FLAC__bool verify_error = false;
if(e->encoder) {
fse_state = FLAC__stream_encoder_get_state(e->encoder);
ret = FLAC__stream_encoder_finish(e->encoder)? 0 : 1;
verify_error =
fse_state == FLAC__STREAM_ENCODER_VERIFY_MISMATCH_IN_AUDIO_DATA ||
FLAC__stream_encoder_get_state(e->encoder) == FLAC__STREAM_ENCODER_VERIFY_MISMATCH_IN_AUDIO_DATA
;
}
/* all errors except verify errors should interrupt the stats */
if(ret && !verify_error)
print_error_with_state(e, "ERROR during encoding");
else if(e->total_samples_to_encode > 0) {
print_stats(e);
flac__utils_printf(stderr, 2, "\n");
}
if(verify_error) {
print_verify_error(e);
ret = 1;
}
else {
if(info_align_carry >= 0) {
flac__utils_printf(stderr, 1, "%s: INFO: sector alignment causing %d samples to be carried over\n", e->inbasefilename, info_align_carry);
}
if(info_align_zero >= 0) {
flac__utils_printf(stderr, 1, "%s: INFO: sector alignment causing %d zero samples to be appended\n", e->inbasefilename, info_align_zero);
}
}
/*@@@@@@ should this go here or somewhere else? */
if(ret == 0 && foreign_metadata) {
const char *error;
if(!flac__foreign_metadata_write_to_flac(foreign_metadata, e->infilename, e->outfilename, &error)) {
flac__utils_printf(stderr, 1, "%s: ERROR: updating foreign metadata in FLAC file: %s\n", e->inbasefilename, error);
ret = 1;
}
}
EncoderSession_destroy(e);
return ret;
}
int EncoderSession_finish_error(EncoderSession *e)
{
FLAC__ASSERT(e->encoder);
if(e->total_samples_to_encode > 0)
flac__utils_printf(stderr, 2, "\n");
if(FLAC__stream_encoder_get_state(e->encoder) == FLAC__STREAM_ENCODER_VERIFY_MISMATCH_IN_AUDIO_DATA)
print_verify_error(e);
else if(e->outputfile_opened)
/* only want to delete the file if we opened it; otherwise it could be an existing file and our overwrite failed */
flac_unlink(e->outfilename);
EncoderSession_destroy(e);
return 1;
}
typedef struct {
unsigned num_metadata;
FLAC__bool *needs_delete;
FLAC__StreamMetadata **metadata;
FLAC__StreamMetadata *cuesheet; /* always needs to be deleted */
} static_metadata_t;
static void static_metadata_init(static_metadata_t *m)
{
m->num_metadata = 0;
m->needs_delete = 0;
m->metadata = 0;
m->cuesheet = 0;
}
static void static_metadata_clear(static_metadata_t *m)
{
unsigned i;
for(i = 0; i < m->num_metadata; i++)
if(m->needs_delete[i])
FLAC__metadata_object_delete(m->metadata[i]);
if(m->metadata)
free(m->metadata);
if(m->needs_delete)
free(m->needs_delete);
if(m->cuesheet)
FLAC__metadata_object_delete(m->cuesheet);
static_metadata_init(m);
}
static FLAC__bool static_metadata_append(static_metadata_t *m, FLAC__StreamMetadata *d, FLAC__bool needs_delete)
{
void *x;
if(0 == (x = safe_realloc_muladd2_(m->metadata, sizeof(*m->metadata), /*times (*/m->num_metadata, /*+*/1/*)*/)))
return false;
m->metadata = (FLAC__StreamMetadata**)x;
if(0 == (x = safe_realloc_muladd2_(m->needs_delete, sizeof(*m->needs_delete), /*times (*/m->num_metadata, /*+*/1/*)*/)))
return false;
m->needs_delete = (FLAC__bool*)x;
m->metadata[m->num_metadata] = d;
m->needs_delete[m->num_metadata] = needs_delete;
m->num_metadata++;
return true;
}
FLAC__bool EncoderSession_init_encoder(EncoderSession *e, encode_options_t options)
{
const unsigned channels = e->info.channels;
const unsigned bps = e->info.bits_per_sample - e->info.shift;
const unsigned sample_rate = e->info.sample_rate;
FLACDecoderData *flac_decoder_data = (e->format == FORMAT_FLAC || e->format == FORMAT_OGGFLAC)? &e->fmt.flac.client_data : 0;
FLAC__StreamMetadata padding;
FLAC__StreamMetadata **metadata = 0;
static_metadata_t static_metadata;
unsigned num_metadata = 0, ic;
FLAC__StreamEncoderInitStatus init_status;
const FLAC__bool is_cdda = (channels == 1 || channels == 2) && (bps == 16) && (sample_rate == 44100);
char apodizations[2000];
FLAC__ASSERT(sizeof(options.pictures)/sizeof(options.pictures[0]) <= 64);
static_metadata_init(&static_metadata);
e->replay_gain = options.replay_gain;
apodizations[0] = '\0';
if(e->replay_gain) {
if(channels != 1 && channels != 2) {
flac__utils_printf(stderr, 1, "%s: ERROR, number of channels (%u) must be 1 or 2 for --replay-gain\n", e->inbasefilename, channels);
return false;
}
if(!grabbag__replaygain_is_valid_sample_frequency(sample_rate)) {
flac__utils_printf(stderr, 1, "%s: ERROR, invalid sample rate (%u) for --replay-gain\n", e->inbasefilename, sample_rate);
return false;
}
if(options.is_first_file) {
if(!grabbag__replaygain_init(sample_rate)) {
flac__utils_printf(stderr, 1, "%s: ERROR initializing ReplayGain stage\n", e->inbasefilename);
return false;
}
}
}
if(!parse_cuesheet(&static_metadata.cuesheet, options.cuesheet_filename, e->inbasefilename, sample_rate, is_cdda, e->total_samples_to_encode, e->treat_warnings_as_errors))
return false;
if(!convert_to_seek_table_template(options.requested_seek_points, options.num_requested_seek_points, options.cued_seekpoints? static_metadata.cuesheet : 0, e)) {
flac__utils_printf(stderr, 1, "%s: ERROR allocating memory for seek table\n", e->inbasefilename);
static_metadata_clear(&static_metadata);
return false;
}
/* build metadata */
if(flac_decoder_data) {
/*
* we're encoding from FLAC so we will use the FLAC file's
* metadata as the basis for the encoded file
*/
{
unsigned i;
/*
* first handle pictures: simple append any --pictures
* specified.
*/
for(i = 0; i < options.num_pictures; i++) {
FLAC__StreamMetadata *pic = FLAC__metadata_object_clone(options.pictures[i]);
if(0 == pic) {
flac__utils_printf(stderr, 1, "%s: ERROR allocating memory for PICTURE block\n", e->inbasefilename);
static_metadata_clear(&static_metadata);
return false;
}
flac_decoder_data->metadata_blocks[flac_decoder_data->num_metadata_blocks++] = pic;
}
}
{
/*
* next handle vorbis comment: if any tags were specified
* or there is no existing vorbis comment, we create a
* new vorbis comment (discarding any existing one); else
* we keep the existing one. also need to make sure to
* propagate any channel mask tag.
*/
/* @@@ change to append -T values from options.vorbis_comment if input has VC already? */
size_t i, j;
FLAC__bool vc_found = false;
for(i = 0, j = 0; i < flac_decoder_data->num_metadata_blocks; i++) {
if(flac_decoder_data->metadata_blocks[i]->type == FLAC__METADATA_TYPE_VORBIS_COMMENT)
vc_found = true;
if(flac_decoder_data->metadata_blocks[i]->type == FLAC__METADATA_TYPE_VORBIS_COMMENT && options.vorbis_comment->data.vorbis_comment.num_comments > 0) {
(void) flac__utils_get_channel_mask_tag(flac_decoder_data->metadata_blocks[i], &e->info.channel_mask);
flac__utils_printf(stderr, 1, "%s: WARNING, replacing tags from input FLAC file with those given on the command-line\n", e->inbasefilename);
if(e->treat_warnings_as_errors) {
static_metadata_clear(&static_metadata);
return false;
}
FLAC__metadata_object_delete(flac_decoder_data->metadata_blocks[i]);
flac_decoder_data->metadata_blocks[i] = 0;
}
else
flac_decoder_data->metadata_blocks[j++] = flac_decoder_data->metadata_blocks[i];
}
flac_decoder_data->num_metadata_blocks = j;
if((!vc_found || options.vorbis_comment->data.vorbis_comment.num_comments > 0) && flac_decoder_data->num_metadata_blocks < sizeof(flac_decoder_data->metadata_blocks)/sizeof(flac_decoder_data->metadata_blocks[0])) {
/* prepend ours */
FLAC__StreamMetadata *vc = FLAC__metadata_object_clone(options.vorbis_comment);
if(0 == vc || (e->info.channel_mask && !flac__utils_set_channel_mask_tag(vc, e->info.channel_mask))) {
flac__utils_printf(stderr, 1, "%s: ERROR allocating memory for VORBIS_COMMENT block\n", e->inbasefilename);
static_metadata_clear(&static_metadata);
return false;
}
for(i = flac_decoder_data->num_metadata_blocks; i > 1; i--)
flac_decoder_data->metadata_blocks[i] = flac_decoder_data->metadata_blocks[i-1];
flac_decoder_data->metadata_blocks[1] = vc;
flac_decoder_data->num_metadata_blocks++;
}
}
{
/*
* next handle cuesheet: if --cuesheet was specified, use
* it; else if file has existing CUESHEET and cuesheet's
* lead-out offset is correct, keep it; else no CUESHEET
*/
size_t i, j;
for(i = 0, j = 0; i < flac_decoder_data->num_metadata_blocks; i++) {
FLAC__bool existing_cuesheet_is_bad = false;
/* check if existing cuesheet matches the input audio */
if(flac_decoder_data->metadata_blocks[i]->type == FLAC__METADATA_TYPE_CUESHEET && 0 == static_metadata.cuesheet) {
const FLAC__StreamMetadata_CueSheet *cs = &flac_decoder_data->metadata_blocks[i]->data.cue_sheet;
if(e->total_samples_to_encode == 0) {
flac__utils_printf(stderr, 1, "%s: WARNING, cuesheet in input FLAC file cannot be kept if input size is not known, dropping it...\n", e->inbasefilename);
if(e->treat_warnings_as_errors) {
static_metadata_clear(&static_metadata);
return false;
}
existing_cuesheet_is_bad = true;
}
else if(e->total_samples_to_encode != cs->tracks[cs->num_tracks-1].offset) {
flac__utils_printf(stderr, 1, "%s: WARNING, lead-out offset of cuesheet in input FLAC file does not match input length, dropping existing cuesheet...\n", e->inbasefilename);
if(e->treat_warnings_as_errors) {
static_metadata_clear(&static_metadata);
return false;
}
existing_cuesheet_is_bad = true;
}
}
if(flac_decoder_data->metadata_blocks[i]->type == FLAC__METADATA_TYPE_CUESHEET && (existing_cuesheet_is_bad || 0 != static_metadata.cuesheet)) {
if(0 != static_metadata.cuesheet) {
flac__utils_printf(stderr, 1, "%s: WARNING, replacing cuesheet in input FLAC file with the one given on the command-line\n", e->inbasefilename);
if(e->treat_warnings_as_errors) {
static_metadata_clear(&static_metadata);
return false;
}
}
FLAC__metadata_object_delete(flac_decoder_data->metadata_blocks[i]);
flac_decoder_data->metadata_blocks[i] = 0;
}
else
flac_decoder_data->metadata_blocks[j++] = flac_decoder_data->metadata_blocks[i];
}
flac_decoder_data->num_metadata_blocks = j;
if(0 != static_metadata.cuesheet && flac_decoder_data->num_metadata_blocks < sizeof(flac_decoder_data->metadata_blocks)/sizeof(flac_decoder_data->metadata_blocks[0])) {
/* prepend ours */
FLAC__StreamMetadata *cs = FLAC__metadata_object_clone(static_metadata.cuesheet);
if(0 == cs) {
flac__utils_printf(stderr, 1, "%s: ERROR allocating memory for CUESHEET block\n", e->inbasefilename);
static_metadata_clear(&static_metadata);
return false;
}
for(i = flac_decoder_data->num_metadata_blocks; i > 1; i--)
flac_decoder_data->metadata_blocks[i] = flac_decoder_data->metadata_blocks[i-1];
flac_decoder_data->metadata_blocks[1] = cs;
flac_decoder_data->num_metadata_blocks++;
}
}
{
/*
* next handle seektable: if -S- was specified, no
* SEEKTABLE; else if -S was specified, use it/them;
* else if file has existing SEEKTABLE and input size is
* preserved (no --skip/--until/etc specified), keep it;
* else use default seektable options
*
* note: meanings of num_requested_seek_points:
* -1 : no -S option given, default to some value
* 0 : -S- given (no seektable)
* >0 : one or more -S options given
*/
size_t i, j;
FLAC__bool existing_seektable = false;
for(i = 0, j = 0; i < flac_decoder_data->num_metadata_blocks; i++) {
if(flac_decoder_data->metadata_blocks[i]->type == FLAC__METADATA_TYPE_SEEKTABLE)
existing_seektable = true;
if(flac_decoder_data->metadata_blocks[i]->type == FLAC__METADATA_TYPE_SEEKTABLE && (e->total_samples_to_encode != flac_decoder_data->metadata_blocks[0]->data.stream_info.total_samples || options.num_requested_seek_points >= 0)) {
if(options.num_requested_seek_points > 0) {
flac__utils_printf(stderr, 1, "%s: WARNING, replacing seektable in input FLAC file with the one given on the command-line\n", e->inbasefilename);
if(e->treat_warnings_as_errors) {
static_metadata_clear(&static_metadata);
return false;
}
}
else if(options.num_requested_seek_points == 0)
; /* no warning, silently delete existing SEEKTABLE since user specified --no-seektable (-S-) */
else {
flac__utils_printf(stderr, 1, "%s: WARNING, can't use existing seektable in input FLAC since the input size is changing or unknown, dropping existing SEEKTABLE block...\n", e->inbasefilename);
if(e->treat_warnings_as_errors) {
static_metadata_clear(&static_metadata);
return false;
}
}
FLAC__metadata_object_delete(flac_decoder_data->metadata_blocks[i]);
flac_decoder_data->metadata_blocks[i] = 0;
existing_seektable = false;
}
else
flac_decoder_data->metadata_blocks[j++] = flac_decoder_data->metadata_blocks[i];
}
flac_decoder_data->num_metadata_blocks = j;
if((options.num_requested_seek_points > 0 || (options.num_requested_seek_points < 0 && !existing_seektable)) && flac_decoder_data->num_metadata_blocks < sizeof(flac_decoder_data->metadata_blocks)/sizeof(flac_decoder_data->metadata_blocks[0])) {
/* prepend ours */
FLAC__StreamMetadata *st = FLAC__metadata_object_clone(e->seek_table_template);
if(0 == st) {
flac__utils_printf(stderr, 1, "%s: ERROR allocating memory for SEEKTABLE block\n", e->inbasefilename);
static_metadata_clear(&static_metadata);
return false;
}
for(i = flac_decoder_data->num_metadata_blocks; i > 1; i--)
flac_decoder_data->metadata_blocks[i] = flac_decoder_data->metadata_blocks[i-1];
flac_decoder_data->metadata_blocks[1] = st;
flac_decoder_data->num_metadata_blocks++;
}
}
{
/*
* finally handle padding: if --no-padding was specified,
* then delete all padding; else if -P was specified,
* use that instead of existing padding (if any); else
* if existing file has padding, move all existing
* padding blocks to one padding block at the end; else
* use default padding.
*/
int p = -1;
size_t i, j;
for(i = 0, j = 0; i < flac_decoder_data->num_metadata_blocks; i++) {
if(flac_decoder_data->metadata_blocks[i]->type == FLAC__METADATA_TYPE_PADDING) {
if(p < 0)
p = 0;
p += flac_decoder_data->metadata_blocks[i]->length;
FLAC__metadata_object_delete(flac_decoder_data->metadata_blocks[i]);
flac_decoder_data->metadata_blocks[i] = 0;
}
else
flac_decoder_data->metadata_blocks[j++] = flac_decoder_data->metadata_blocks[i];
}
flac_decoder_data->num_metadata_blocks = j;
if(options.padding > 0)
p = options.padding;
if(p < 0)
p = e->total_samples_to_encode / sample_rate < 20*60? FLAC_ENCODE__DEFAULT_PADDING : FLAC_ENCODE__DEFAULT_PADDING*8;
if(options.padding != 0) {
if(p > 0 && flac_decoder_data->num_metadata_blocks < sizeof(flac_decoder_data->metadata_blocks)/sizeof(flac_decoder_data->metadata_blocks[0])) {
flac_decoder_data->metadata_blocks[flac_decoder_data->num_metadata_blocks] = FLAC__metadata_object_new(FLAC__METADATA_TYPE_PADDING);
if(0 == flac_decoder_data->metadata_blocks[flac_decoder_data->num_metadata_blocks]) {
flac__utils_printf(stderr, 1, "%s: ERROR allocating memory for PADDING block\n", e->inbasefilename);
static_metadata_clear(&static_metadata);
return false;
}
flac_decoder_data->metadata_blocks[flac_decoder_data->num_metadata_blocks]->is_last = false; /* the encoder will set this for us */
flac_decoder_data->metadata_blocks[flac_decoder_data->num_metadata_blocks]->length = p;
flac_decoder_data->num_metadata_blocks++;
}
}
}
metadata = &flac_decoder_data->metadata_blocks[1]; /* don't include STREAMINFO */
num_metadata = flac_decoder_data->num_metadata_blocks - 1;
}
else {
/*
* we're not encoding from FLAC so we will build the metadata
* from scratch
*/
const foreign_metadata_t *foreign_metadata = EncoderSession_format_is_iff(e)? options.format_options.iff.foreign_metadata : 0;
unsigned i;
if(e->seek_table_template->data.seek_table.num_points > 0) {
e->seek_table_template->is_last = false; /* the encoder will set this for us */
static_metadata_append(&static_metadata, e->seek_table_template, /*needs_delete=*/false);
}
if(0 != static_metadata.cuesheet)
static_metadata_append(&static_metadata, static_metadata.cuesheet, /*needs_delete=*/false);
if(e->info.channel_mask) {
if(!flac__utils_set_channel_mask_tag(options.vorbis_comment, e->info.channel_mask)) {
flac__utils_printf(stderr, 1, "%s: ERROR adding channel mask tag\n", e->inbasefilename);
static_metadata_clear(&static_metadata);
return false;
}
}
static_metadata_append(&static_metadata, options.vorbis_comment, /*needs_delete=*/false);
for(i = 0; i < options.num_pictures; i++)
static_metadata_append(&static_metadata, options.pictures[i], /*needs_delete=*/false);
if(foreign_metadata) {
for(i = 0; i < foreign_metadata->num_blocks; i++) {
FLAC__StreamMetadata *p = FLAC__metadata_object_new(FLAC__METADATA_TYPE_PADDING);
if(!p) {
flac__utils_printf(stderr, 1, "%s: ERROR: out of memory\n", e->inbasefilename);
static_metadata_clear(&static_metadata);
return false;
}
static_metadata_append(&static_metadata, p, /*needs_delete=*/true);
static_metadata.metadata[static_metadata.num_metadata-1]->length = FLAC__STREAM_METADATA_APPLICATION_ID_LEN/8 + foreign_metadata->blocks[i].size;
}
}
if(options.padding != 0) {
padding.is_last = false; /* the encoder will set this for us */
padding.type = FLAC__METADATA_TYPE_PADDING;
padding.length = (unsigned)(options.padding>0? options.padding : (e->total_samples_to_encode / sample_rate < 20*60? FLAC_ENCODE__DEFAULT_PADDING : FLAC_ENCODE__DEFAULT_PADDING*8));
static_metadata_append(&static_metadata, &padding, /*needs_delete=*/false);
}
metadata = static_metadata.metadata;
num_metadata = static_metadata.num_metadata;
}
/* check for a few things that have not already been checked. the
* FLAC__stream_encoder_init*() will check it but only return
* FLAC__STREAM_ENCODER_INIT_STATUS_INVALID_METADATA so we check some
* up front to give a better error message.
*/
if(!verify_metadata(e, metadata, num_metadata)) {
static_metadata_clear(&static_metadata);
return false;
}
FLAC__stream_encoder_set_verify(e->encoder, options.verify);
FLAC__stream_encoder_set_streamable_subset(e->encoder, !options.lax);
FLAC__stream_encoder_set_channels(e->encoder, channels);
FLAC__stream_encoder_set_bits_per_sample(e->encoder, bps);
FLAC__stream_encoder_set_sample_rate(e->encoder, sample_rate);
for(ic = 0; ic < options.num_compression_settings; ic++) {
switch(options.compression_settings[ic].type) {
case CST_BLOCKSIZE:
FLAC__stream_encoder_set_blocksize(e->encoder, options.compression_settings[ic].value.t_unsigned);
break;
case CST_COMPRESSION_LEVEL:
FLAC__stream_encoder_set_compression_level(e->encoder, options.compression_settings[ic].value.t_unsigned);
apodizations[0] = '\0';
break;
case CST_DO_MID_SIDE:
FLAC__stream_encoder_set_do_mid_side_stereo(e->encoder, options.compression_settings[ic].value.t_bool);
break;
case CST_LOOSE_MID_SIDE:
FLAC__stream_encoder_set_loose_mid_side_stereo(e->encoder, options.compression_settings[ic].value.t_bool);
break;
case CST_APODIZATION:
if(strlen(apodizations)+strlen(options.compression_settings[ic].value.t_string)+2 >= sizeof(apodizations)) {
flac__utils_printf(stderr, 1, "%s: ERROR: too many apodization functions requested\n", e->inbasefilename);
static_metadata_clear(&static_metadata);
return false;
}
else {
safe_strncat(apodizations, options.compression_settings[ic].value.t_string, sizeof(apodizations));
safe_strncat(apodizations, ";", sizeof(apodizations));
}
break;
case CST_MAX_LPC_ORDER:
FLAC__stream_encoder_set_max_lpc_order(e->encoder, options.compression_settings[ic].value.t_unsigned);
break;
case CST_QLP_COEFF_PRECISION:
FLAC__stream_encoder_set_qlp_coeff_precision(e->encoder, options.compression_settings[ic].value.t_unsigned);
break;
case CST_DO_QLP_COEFF_PREC_SEARCH:
FLAC__stream_encoder_set_do_qlp_coeff_prec_search(e->encoder, options.compression_settings[ic].value.t_bool);
break;
case CST_DO_ESCAPE_CODING:
FLAC__stream_encoder_set_do_escape_coding(e->encoder, options.compression_settings[ic].value.t_bool);
break;
case CST_DO_EXHAUSTIVE_MODEL_SEARCH:
FLAC__stream_encoder_set_do_exhaustive_model_search(e->encoder, options.compression_settings[ic].value.t_bool);
break;
case CST_MIN_RESIDUAL_PARTITION_ORDER:
FLAC__stream_encoder_set_min_residual_partition_order(e->encoder, options.compression_settings[ic].value.t_unsigned);
break;
case CST_MAX_RESIDUAL_PARTITION_ORDER:
FLAC__stream_encoder_set_max_residual_partition_order(e->encoder, options.compression_settings[ic].value.t_unsigned);
break;
case CST_RICE_PARAMETER_SEARCH_DIST:
FLAC__stream_encoder_set_rice_parameter_search_dist(e->encoder, options.compression_settings[ic].value.t_unsigned);
break;
}
}
if(*apodizations)
FLAC__stream_encoder_set_apodization(e->encoder, apodizations);
FLAC__stream_encoder_set_total_samples_estimate(e->encoder, e->total_samples_to_encode);
FLAC__stream_encoder_set_metadata(e->encoder, (num_metadata > 0)? metadata : 0, num_metadata);
FLAC__stream_encoder_disable_constant_subframes(e->encoder, options.debug.disable_constant_subframes);
FLAC__stream_encoder_disable_fixed_subframes(e->encoder, options.debug.disable_fixed_subframes);
FLAC__stream_encoder_disable_verbatim_subframes(e->encoder, options.debug.disable_verbatim_subframes);
if(!options.debug.do_md5) {
flac__utils_printf(stderr, 1, "%s: WARNING, MD5 computation disabled, resulting file will not have MD5 sum\n", e->inbasefilename);
if(e->treat_warnings_as_errors) {
static_metadata_clear(&static_metadata);
return false;
}
FLAC__stream_encoder_set_do_md5(e->encoder, false);
}
#if FLAC__HAS_OGG
if(e->use_ogg) {
FLAC__stream_encoder_set_ogg_serial_number(e->encoder, options.serial_number);
init_status = FLAC__stream_encoder_init_ogg_file(e->encoder, e->is_stdout? 0 : e->outfilename, encoder_progress_callback, /*client_data=*/e);
}
else
#endif
{
init_status = FLAC__stream_encoder_init_file(e->encoder, e->is_stdout? 0 : e->outfilename, encoder_progress_callback, /*client_data=*/e);
}
if(init_status != FLAC__STREAM_ENCODER_INIT_STATUS_OK) {
print_error_with_init_status(e, "ERROR initializing encoder", init_status);
if(FLAC__stream_encoder_get_state(e->encoder) != FLAC__STREAM_ENCODER_IO_ERROR)
e->outputfile_opened = true;
static_metadata_clear(&static_metadata);
return false;
}
else
e->outputfile_opened = true;
e->stats_mask =
(FLAC__stream_encoder_get_do_exhaustive_model_search(e->encoder) && FLAC__stream_encoder_get_do_qlp_coeff_prec_search(e->encoder))? 0x07 :
(FLAC__stream_encoder_get_do_exhaustive_model_search(e->encoder) || FLAC__stream_encoder_get_do_qlp_coeff_prec_search(e->encoder))? 0x0f :
0x3f;
static_metadata_clear(&static_metadata);
return true;
}
FLAC__bool EncoderSession_process(EncoderSession *e, const FLAC__int32 * const buffer[], unsigned samples)
{
if(e->replay_gain) {
if(!grabbag__replaygain_analyze(buffer, e->info.channels==2, e->info.bits_per_sample, samples)) {
flac__utils_printf(stderr, 1, "%s: WARNING, error while calculating ReplayGain\n", e->inbasefilename);
if(e->treat_warnings_as_errors)
return false;
}
}
return FLAC__stream_encoder_process(e->encoder, buffer, samples);
}
FLAC__bool EncoderSession_format_is_iff(const EncoderSession *e)
{
return
e->format == FORMAT_WAVE ||
e->format == FORMAT_WAVE64 ||
e->format == FORMAT_RF64 ||
e->format == FORMAT_AIFF ||
e->format == FORMAT_AIFF_C;
}
FLAC__bool convert_to_seek_table_template(const char *requested_seek_points, int num_requested_seek_points, FLAC__StreamMetadata *cuesheet, EncoderSession *e)
{
const FLAC__bool only_placeholders = e->is_stdout;
FLAC__bool has_real_points;
if(num_requested_seek_points == 0 && 0 == cuesheet)
return true;
if(num_requested_seek_points < 0) {
#if FLAC__HAS_OGG
/*@@@@@@ workaround ogg bug: too many seekpoints makes table not fit in one page */
if(e->use_ogg && e->total_samples_to_encode > 0 && e->total_samples_to_encode / e->info.sample_rate / 10 > 230)
requested_seek_points = "230x;";
else
#endif
requested_seek_points = "10s;";
num_requested_seek_points = 1;
}
if(num_requested_seek_points > 0) {
if(!grabbag__seektable_convert_specification_to_template(requested_seek_points, only_placeholders, e->total_samples_to_encode, e->info.sample_rate, e->seek_table_template, &has_real_points))
return false;
}
if(0 != cuesheet) {
unsigned i, j;
const FLAC__StreamMetadata_CueSheet *cs = &cuesheet->data.cue_sheet;
for(i = 0; i < cs->num_tracks; i++) {
const FLAC__StreamMetadata_CueSheet_Track *tr = cs->tracks+i;
for(j = 0; j < tr->num_indices; j++) {
if(!FLAC__metadata_object_seektable_template_append_point(e->seek_table_template, tr->offset + tr->indices[j].offset))
return false;
has_real_points = true;
}
}
if(has_real_points)
if(!FLAC__metadata_object_seektable_template_sort(e->seek_table_template, /*compact=*/true))
return false;
}
if(has_real_points) {
if(e->is_stdout) {
flac__utils_printf(stderr, 1, "%s: WARNING, cannot write back seekpoints when encoding to stdout\n", e->inbasefilename);
if(e->treat_warnings_as_errors)
return false;
}
}
return true;
}
FLAC__bool canonicalize_until_specification(utils__SkipUntilSpecification *spec, const char *inbasefilename, unsigned sample_rate, FLAC__uint64 skip, FLAC__uint64 total_samples_in_input)
{
/* convert from mm:ss.sss to sample number if necessary */
flac__utils_canonicalize_skip_until_specification(spec, sample_rate);
/* special case: if "--until=-0", use the special value '0' to mean "end-of-stream" */
if(spec->is_relative && spec->value.samples == 0) {
spec->is_relative = false;
return true;
}
/* in any other case the total samples in the input must be known */
if(total_samples_in_input == 0) {
flac__utils_printf(stderr, 1, "%s: ERROR, cannot use --until when input length is unknown\n", inbasefilename);
return false;
}
FLAC__ASSERT(spec->value_is_samples);
/* convert relative specifications to absolute */
if(spec->is_relative) {
if(spec->value.samples <= 0)
spec->value.samples += (FLAC__int64)total_samples_in_input;
else
spec->value.samples += skip;
spec->is_relative = false;
}
/* error check */
if(spec->value.samples < 0) {
flac__utils_printf(stderr, 1, "%s: ERROR, --until value is before beginning of input\n", inbasefilename);
return false;
}
if((FLAC__uint64)spec->value.samples <= skip) {
flac__utils_printf(stderr, 1, "%s: ERROR, --until value is before --skip point\n", inbasefilename);
return false;
}
if((FLAC__uint64)spec->value.samples > total_samples_in_input) {
flac__utils_printf(stderr, 1, "%s: ERROR, --until value is after end of input\n", inbasefilename);
return false;
}
return true;
}
FLAC__bool verify_metadata(const EncoderSession *e, FLAC__StreamMetadata **metadata, unsigned num_metadata)
{
FLAC__bool metadata_picture_has_type1 = false;
FLAC__bool metadata_picture_has_type2 = false;
unsigned i;
FLAC__ASSERT(0 != metadata);
for(i = 0; i < num_metadata; i++) {
const FLAC__StreamMetadata *m = metadata[i];
if(m->type == FLAC__METADATA_TYPE_SEEKTABLE) {
if(!FLAC__format_seektable_is_legal(&m->data.seek_table)) {
flac__utils_printf(stderr, 1, "%s: ERROR: SEEKTABLE metadata block is invalid\n", e->inbasefilename);
return false;
}
}
else if(m->type == FLAC__METADATA_TYPE_CUESHEET) {
if(!FLAC__format_cuesheet_is_legal(&m->data.cue_sheet, m->data.cue_sheet.is_cd, /*violation=*/0)) {
flac__utils_printf(stderr, 1, "%s: ERROR: CUESHEET metadata block is invalid\n", e->inbasefilename);
return false;
}
}
else if(m->type == FLAC__METADATA_TYPE_PICTURE) {
const char *error = 0;
if(!FLAC__format_picture_is_legal(&m->data.picture, &error)) {
flac__utils_printf(stderr, 1, "%s: ERROR: PICTURE metadata block is invalid: %s\n", e->inbasefilename, error);
return false;
}
if(m->data.picture.type == FLAC__STREAM_METADATA_PICTURE_TYPE_FILE_ICON_STANDARD) {
if(metadata_picture_has_type1) {
flac__utils_printf(stderr, 1, "%s: ERROR: there may only be one picture of type 1 (32x32 icon) in the file\n", e->inbasefilename);
return false;
}
metadata_picture_has_type1 = true;
}
else if(m->data.picture.type == FLAC__STREAM_METADATA_PICTURE_TYPE_FILE_ICON) {
if(metadata_picture_has_type2) {
flac__utils_printf(stderr, 1, "%s: ERROR: there may only be one picture of type 2 (icon) in the file\n", e->inbasefilename);
return false;
}
metadata_picture_has_type2 = true;
}
}
}
return true;
}
FLAC__bool format_input(FLAC__int32 *dest[], unsigned wide_samples, FLAC__bool is_big_endian, FLAC__bool is_unsigned_samples, unsigned channels, unsigned bps, unsigned shift, size_t *channel_map)
{
unsigned wide_sample, sample, channel;
FLAC__int32 *out[FLAC__MAX_CHANNELS];
if(0 == channel_map) {
for(channel = 0; channel < channels; channel++)
out[channel] = dest[channel];
}
else {
for(channel = 0; channel < channels; channel++)
out[channel] = dest[channel_map[channel]];
}
if(bps == 8) {
if(is_unsigned_samples) {
for(sample = wide_sample = 0; wide_sample < wide_samples; wide_sample++)
for(channel = 0; channel < channels; channel++, sample++)
out[channel][wide_sample] = (FLAC__int32)ucbuffer_[sample] - 0x80;
}
else {
for(sample = wide_sample = 0; wide_sample < wide_samples; wide_sample++)
for(channel = 0; channel < channels; channel++, sample++)
out[channel][wide_sample] = (FLAC__int32)scbuffer_[sample];
}
}
else if(bps == 16) {
if(is_big_endian != is_big_endian_host_) {
unsigned char tmp;
const unsigned bytes = wide_samples * channels * (bps >> 3);
unsigned b;
for(b = 0; b < bytes; b += 2) {
tmp = ucbuffer_[b];
ucbuffer_[b] = ucbuffer_[b+1];
ucbuffer_[b+1] = tmp;
}
}
if(is_unsigned_samples) {
for(sample = wide_sample = 0; wide_sample < wide_samples; wide_sample++)
for(channel = 0; channel < channels; channel++, sample++)
out[channel][wide_sample] = (FLAC__int32)usbuffer_[sample] - 0x8000;
}
else {
for(sample = wide_sample = 0; wide_sample < wide_samples; wide_sample++)
for(channel = 0; channel < channels; channel++, sample++)
out[channel][wide_sample] = (FLAC__int32)ssbuffer_[sample];
}
}
else if(bps == 24) {
if(!is_big_endian) {
unsigned char tmp;
const unsigned bytes = wide_samples * channels * (bps >> 3);
unsigned b;
for(b = 0; b < bytes; b += 3) {
tmp = ucbuffer_[b];
ucbuffer_[b] = ucbuffer_[b+2];
ucbuffer_[b+2] = tmp;
}
}
if(is_unsigned_samples) {
unsigned b;
for(b = sample = wide_sample = 0; wide_sample < wide_samples; wide_sample++)
for(channel = 0; channel < channels; channel++, sample++) {
out[channel][wide_sample] = ucbuffer_[b++]; out[channel][wide_sample] <<= 8;
out[channel][wide_sample] |= ucbuffer_[b++]; out[channel][wide_sample] <<= 8;
out[channel][wide_sample] |= ucbuffer_[b++];
out[channel][wide_sample] -= 0x800000;
}
}
else {
unsigned b;
for(b = sample = wide_sample = 0; wide_sample < wide_samples; wide_sample++)
for(channel = 0; channel < channels; channel++, sample++) {
out[channel][wide_sample] = scbuffer_[b++]; out[channel][wide_sample] <<= 8;
out[channel][wide_sample] |= ucbuffer_[b++]; out[channel][wide_sample] <<= 8;
out[channel][wide_sample] |= ucbuffer_[b++];
}
}
}
else {
FLAC__ASSERT(0);
}
if(shift > 0) {
FLAC__int32 mask = (1<<shift)-1;
for(wide_sample = 0; wide_sample < wide_samples; wide_sample++)
for(channel = 0; channel < channels; channel++) {
if(out[channel][wide_sample] & mask) {
flac__utils_printf(stderr, 1, "ERROR during read, sample data (channel#%u sample#%u = %d) has non-zero least-significant bits\n WAVE/AIFF header said the last %u bits are not significant and should be zero.\n", channel, wide_sample, out[channel][wide_sample], shift);
return false;
}
out[channel][wide_sample] >>= shift;
}
}
return true;
}
void encoder_progress_callback(const FLAC__StreamEncoder *encoder, FLAC__uint64 bytes_written, FLAC__uint64 samples_written, unsigned frames_written, unsigned total_frames_estimate, void *client_data)
{
EncoderSession *e = (EncoderSession*)client_data;
(void)encoder, (void)total_frames_estimate;
e->bytes_written = bytes_written;
e->samples_written = samples_written;
if(e->total_samples_to_encode > 0 && !((frames_written-1) & e->stats_mask))
print_stats(e);
}
FLAC__StreamDecoderReadStatus flac_decoder_read_callback(const FLAC__StreamDecoder *decoder, FLAC__byte buffer[], size_t *bytes, void *client_data)
{
size_t n = 0;
EncoderSession *e = (EncoderSession*)client_data;
FLACDecoderData *data = &e->fmt.flac.client_data;
(void)decoder;
if (data->fatal_error)
return FLAC__STREAM_DECODER_READ_STATUS_ABORT;
/* use up lookahead first */
if (data->lookahead_length) {
n = min(data->lookahead_length, *bytes);
memcpy(buffer, data->lookahead, n);
buffer += n;
data->lookahead += n;
data->lookahead_length -= n;
}
/* get the rest from file */
if (*bytes > n) {
*bytes = n + fread(buffer, 1, *bytes-n, e->fin);
if(ferror(e->fin))
return FLAC__STREAM_DECODER_READ_STATUS_ABORT;
else if(0 == *bytes)
return FLAC__STREAM_DECODER_READ_STATUS_END_OF_STREAM;
else
return FLAC__STREAM_DECODER_READ_STATUS_CONTINUE;
}
else
return FLAC__STREAM_DECODER_READ_STATUS_CONTINUE;
}
FLAC__StreamDecoderSeekStatus flac_decoder_seek_callback(const FLAC__StreamDecoder *decoder, FLAC__uint64 absolute_byte_offset, void *client_data)
{
EncoderSession *e = (EncoderSession*)client_data;
(void)decoder;
if(fseeko(e->fin, (FLAC__off_t)absolute_byte_offset, SEEK_SET) < 0)
return FLAC__STREAM_DECODER_SEEK_STATUS_ERROR;
else
return FLAC__STREAM_DECODER_SEEK_STATUS_OK;
}
FLAC__StreamDecoderTellStatus flac_decoder_tell_callback(const FLAC__StreamDecoder *decoder, FLAC__uint64 *absolute_byte_offset, void *client_data)
{
EncoderSession *e = (EncoderSession*)client_data;
FLAC__off_t pos;
(void)decoder;
if((pos = ftello(e->fin)) < 0)
return FLAC__STREAM_DECODER_TELL_STATUS_ERROR;
else {
*absolute_byte_offset = (FLAC__uint64)pos;
return FLAC__STREAM_DECODER_TELL_STATUS_OK;
}
}
FLAC__StreamDecoderLengthStatus flac_decoder_length_callback(const FLAC__StreamDecoder *decoder, FLAC__uint64 *stream_length, void *client_data)
{
const EncoderSession *e = (EncoderSession*)client_data;
const FLACDecoderData *data = &e->fmt.flac.client_data;
(void)decoder;
if(data->filesize < 0)
return FLAC__STREAM_DECODER_LENGTH_STATUS_ERROR;
else {
*stream_length = (FLAC__uint64)data->filesize;
return FLAC__STREAM_DECODER_LENGTH_STATUS_OK;
}
}
FLAC__bool flac_decoder_eof_callback(const FLAC__StreamDecoder *decoder, void *client_data)
{
EncoderSession *e = (EncoderSession*)client_data;
(void)decoder;
return feof(e->fin)? true : false;
}
FLAC__StreamDecoderWriteStatus flac_decoder_write_callback(const FLAC__StreamDecoder *decoder, const FLAC__Frame *frame, const FLAC__int32 * const buffer[], void *client_data)
{
EncoderSession *e = (EncoderSession*)client_data;
FLACDecoderData *data = &e->fmt.flac.client_data;
FLAC__uint64 n = min(data->samples_left_to_process, frame->header.blocksize);
(void)decoder;
if(!EncoderSession_process(e, buffer, (unsigned)n)) {
print_error_with_state(e, "ERROR during encoding");
data->fatal_error = true;
return FLAC__STREAM_DECODER_WRITE_STATUS_ABORT;
}
data->samples_left_to_process -= n;
return FLAC__STREAM_DECODER_WRITE_STATUS_CONTINUE;
}
void flac_decoder_metadata_callback(const FLAC__StreamDecoder *decoder, const FLAC__StreamMetadata *metadata, void *client_data)
{
EncoderSession *e = (EncoderSession*)client_data;
FLACDecoderData *data = &e->fmt.flac.client_data;
(void)decoder;
if (data->fatal_error)
return;
if (
data->num_metadata_blocks == sizeof(data->metadata_blocks)/sizeof(data->metadata_blocks[0]) ||
0 == (data->metadata_blocks[data->num_metadata_blocks] = FLAC__metadata_object_clone(metadata))
)
data->fatal_error = true;
else
data->num_metadata_blocks++;
}
void flac_decoder_error_callback(const FLAC__StreamDecoder *decoder, FLAC__StreamDecoderErrorStatus status, void *client_data)
{
EncoderSession *e = (EncoderSession*)client_data;
FLACDecoderData *data = &e->fmt.flac.client_data;
(void)decoder;
stats_print_name(1, e->inbasefilename);
flac__utils_printf(stderr, 1, "ERROR got %s while decoding FLAC input\n", FLAC__StreamDecoderErrorStatusString[status]);
if(!e->continue_through_decode_errors)
data->fatal_error = true;
}
FLAC__bool parse_cuesheet(FLAC__StreamMetadata **cuesheet, const char *cuesheet_filename, const char *inbasefilename, unsigned sample_rate, FLAC__bool is_cdda, FLAC__uint64 lead_out_offset, FLAC__bool treat_warnings_as_errors)
{
FILE *f;
unsigned last_line_read;
const char *error_message;
if(0 == cuesheet_filename)
return true;
if(lead_out_offset == 0) {
flac__utils_printf(stderr, 1, "%s: ERROR cannot import cuesheet when the number of input samples to encode is unknown\n", inbasefilename);
return false;
}
if(0 == (f = flac_fopen(cuesheet_filename, "r"))) {
flac__utils_printf(stderr, 1, "%s: ERROR opening cuesheet \"%s\" for reading: %s\n", inbasefilename, cuesheet_filename, strerror(errno));
return false;
}
*cuesheet = grabbag__cuesheet_parse(f, &error_message, &last_line_read, sample_rate, is_cdda, lead_out_offset);
fclose(f);
if(0 == *cuesheet) {
flac__utils_printf(stderr, 1, "%s: ERROR parsing cuesheet \"%s\" on line %u: %s\n", inbasefilename, cuesheet_filename, last_line_read, error_message);
return false;
}
if(!FLAC__format_cuesheet_is_legal(&(*cuesheet)->data.cue_sheet, /*check_cd_da_subset=*/false, &error_message)) {
flac__utils_printf(stderr, 1, "%s: ERROR parsing cuesheet \"%s\": %s\n", inbasefilename, cuesheet_filename, error_message);
return false;
}
/* if we're expecting CDDA, warn about non-compliance */
if(is_cdda && !FLAC__format_cuesheet_is_legal(&(*cuesheet)->data.cue_sheet, /*check_cd_da_subset=*/true, &error_message)) {
flac__utils_printf(stderr, 1, "%s: WARNING cuesheet \"%s\" is not audio CD compliant: %s\n", inbasefilename, cuesheet_filename, error_message);
if(treat_warnings_as_errors)
return false;
(*cuesheet)->data.cue_sheet.is_cd = false;
}
return true;
}
void print_stats(const EncoderSession *encoder_session)
{
if(flac__utils_verbosity_ >= 2) {
const FLAC__uint64 samples_written = min(encoder_session->total_samples_to_encode, encoder_session->samples_written);
const FLAC__uint64 uesize = encoder_session->unencoded_size;
#if defined _MSC_VER || defined __MINGW32__
/* with MSVC you have to spoon feed it the casting */
const double progress = (double)(FLAC__int64)samples_written / (double)(FLAC__int64)encoder_session->total_samples_to_encode;
const double ratio = (double)(FLAC__int64)encoder_session->bytes_written / ((double)(FLAC__int64)(uesize? uesize:1) * min(1.0, progress));
#else
const double progress = (double)samples_written / (double)encoder_session->total_samples_to_encode;
const double ratio = (double)encoder_session->bytes_written / ((double)(uesize? uesize:1) * min(1.0, progress));
#endif
char ratiostr[16];
FLAC__ASSERT(encoder_session->total_samples_to_encode > 0);
if (uesize) flac_snprintf(ratiostr, sizeof(ratiostr), "%0.3f", ratio); else flac_snprintf(ratiostr, sizeof(ratiostr), "N/A");
if(samples_written == encoder_session->total_samples_to_encode) {
stats_print_name(2, encoder_session->inbasefilename);
stats_print_info(2, "%swrote %" PRIu64 " bytes, ratio=%s",
encoder_session->verify? "Verify OK, " : "",
encoder_session->bytes_written,
ratiostr
);
}
else {
stats_print_name(2, encoder_session->inbasefilename);
stats_print_info(2, "%u%% complete, ratio=%s", (unsigned)floor(progress * 100.0 + 0.5), ratiostr);
}
}
}
void print_error_with_init_status(const EncoderSession *e, const char *message, FLAC__StreamEncoderInitStatus init_status)
{
const int ilen = strlen(e->inbasefilename) + 1;
const char *state_string = "";
flac__utils_printf(stderr, 1, "\n%s: %s\n", e->inbasefilename, message);
flac__utils_printf(stderr, 1, "%*s init_status = %s\n", ilen, "", FLAC__StreamEncoderInitStatusString[init_status]);
if(init_status == FLAC__STREAM_ENCODER_INIT_STATUS_ENCODER_ERROR) {
state_string = FLAC__stream_encoder_get_resolved_state_string(e->encoder);
flac__utils_printf(stderr, 1, "%*s state = %s\n", ilen, "", state_string);
/* print out some more info for some errors: */
if(0 == strcmp(state_string, FLAC__StreamEncoderStateString[FLAC__STREAM_ENCODER_CLIENT_ERROR])) {
flac__utils_printf(stderr, 1,
"\n"
"An error occurred while writing; the most common cause is that the disk is full.\n"
);
}
else if(0 == strcmp(state_string, FLAC__StreamEncoderStateString[FLAC__STREAM_ENCODER_IO_ERROR])) {
flac__utils_printf(stderr, 1,
"\n"
"An error occurred opening the output file; it is likely that the output\n"
"directory does not exist or is not writable, the output file already exists and\n"
"is not writable, or the disk is full.\n"
);
}
}
else if(init_status == FLAC__STREAM_ENCODER_INIT_STATUS_NOT_STREAMABLE) {
flac__utils_printf(stderr, 1,
"\n"
"The encoding parameters specified do not conform to the FLAC Subset and may not\n"
"be streamable or playable in hardware devices. If you really understand the\n"
"consequences, you can add --lax to the command-line options to encode with\n"
"these parameters anyway. See http://flac.sourceforge.net/format.html#subset\n"
);
}
}
void print_error_with_state(const EncoderSession *e, const char *message)
{
const int ilen = strlen(e->inbasefilename) + 1;
const char *state_string;
flac__utils_printf(stderr, 1, "\n%s: %s\n", e->inbasefilename, message);
state_string = FLAC__stream_encoder_get_resolved_state_string(e->encoder);
flac__utils_printf(stderr, 1, "%*s state = %s\n", ilen, "", state_string);
/* print out some more info for some errors: */
if(0 == strcmp(state_string, FLAC__StreamEncoderStateString[FLAC__STREAM_ENCODER_CLIENT_ERROR])) {
flac__utils_printf(stderr, 1,
"\n"
"An error occurred while writing; the most common cause is that the disk is full.\n"
);
}
}
void print_verify_error(EncoderSession *e)
{
FLAC__uint64 absolute_sample;
unsigned frame_number;
unsigned channel;
unsigned sample;
FLAC__int32 expected;
FLAC__int32 got;
FLAC__stream_encoder_get_verify_decoder_error_stats(e->encoder, &absolute_sample, &frame_number, &channel, &sample, &expected, &got);
flac__utils_printf(stderr, 1, "%s: ERROR: mismatch in decoded data, verify FAILED!\n", e->inbasefilename);
flac__utils_printf(stderr, 1, " Absolute sample=%" PRIu64 ", frame=%u, channel=%u, sample=%u, expected %d, got %d\n", absolute_sample, frame_number, channel, sample, expected, got);
flac__utils_printf(stderr, 1, " In all known cases, verify errors are caused by hardware problems,\n");
flac__utils_printf(stderr, 1, " usually overclocking or bad RAM. Delete %s\n", e->outfilename);
flac__utils_printf(stderr, 1, " and repeat the flac command exactly as before. If it does not give a\n");
flac__utils_printf(stderr, 1, " verify error in the exact same place each time you try it, then there is\n");
flac__utils_printf(stderr, 1, " a problem with your hardware; please see the FAQ:\n");
flac__utils_printf(stderr, 1, " http://flac.sourceforge.net/faq.html#tools__hardware_prob\n");
flac__utils_printf(stderr, 1, " If it does fail in the exact same place every time, keep\n");
flac__utils_printf(stderr, 1, " %s and submit a bug report to:\n", e->outfilename);
flac__utils_printf(stderr, 1, " https://sourceforge.net/bugs/?func=addbug&group_id=13478\n");
flac__utils_printf(stderr, 1, " Make sure to upload the FLAC file and use the \"Monitor\" feature to\n");
flac__utils_printf(stderr, 1, " monitor the bug status.\n");
flac__utils_printf(stderr, 1, "Verify FAILED! Do not trust %s\n", e->outfilename);
}
FLAC__bool read_bytes(FILE *f, FLAC__byte *buf, size_t n, FLAC__bool eof_ok, const char *fn)
{
size_t bytes_read = fread(buf, 1, n, f);
if(bytes_read == 0) {
if(!eof_ok) {
flac__utils_printf(stderr, 1, "%s: ERROR: unexpected EOF\n", fn);
return false;
}
else
return true;
}
if(bytes_read < n) {
flac__utils_printf(stderr, 1, "%s: ERROR: unexpected EOF\n", fn);
return false;
}
return true;
}
FLAC__bool read_uint16(FILE *f, FLAC__bool big_endian, FLAC__uint16 *val, const char *fn)
{
if(!read_bytes(f, (FLAC__byte*)val, 2, /*eof_ok=*/false, fn))
return false;
if(is_big_endian_host_ != big_endian) {
FLAC__byte tmp, *b = (FLAC__byte*)val;
tmp = b[1]; b[1] = b[0]; b[0] = tmp;
}
return true;
}
FLAC__bool read_uint32(FILE *f, FLAC__bool big_endian, FLAC__uint32 *val, const char *fn)
{
if(!read_bytes(f, (FLAC__byte*)val, 4, /*eof_ok=*/false, fn))
return false;
if(is_big_endian_host_ != big_endian) {
FLAC__byte tmp, *b = (FLAC__byte*)val;
tmp = b[3]; b[3] = b[0]; b[0] = tmp;
tmp = b[2]; b[2] = b[1]; b[1] = tmp;
}
return true;
}
FLAC__bool read_uint64(FILE *f, FLAC__bool big_endian, FLAC__uint64 *val, const char *fn)
{
if(!read_bytes(f, (FLAC__byte*)val, 8, /*eof_ok=*/false, fn))
return false;
if(is_big_endian_host_ != big_endian) {
FLAC__byte tmp, *b = (FLAC__byte*)val;
tmp = b[7]; b[7] = b[0]; b[0] = tmp;
tmp = b[6]; b[6] = b[1]; b[1] = tmp;
tmp = b[5]; b[5] = b[2]; b[2] = tmp;
tmp = b[4]; b[4] = b[3]; b[3] = tmp;
}
return true;
}
FLAC__bool read_sane_extended(FILE *f, FLAC__uint32 *val, const char *fn)
/* Read an IEEE 754 80-bit (aka SANE) extended floating point value from 'f',
* convert it into an integral value and store in 'val'. Return false if only
* between 1 and 9 bytes remain in 'f', if 0 bytes remain in 'f', or if the
* value is negative, between zero and one, or too large to be represented by
* 'val'; return true otherwise.
*/
{
unsigned int i;
FLAC__byte buf[10];
FLAC__uint64 p = 0;
FLAC__int16 e;
FLAC__int16 shift;
if(!read_bytes(f, buf, sizeof(buf), /*eof_ok=*/false, fn))
return false;
e = ((FLAC__uint16)(buf[0])<<8 | (FLAC__uint16)(buf[1]))-0x3FFF;
shift = 63-e;
if((buf[0]>>7)==1U || e<0 || e>63) {
flac__utils_printf(stderr, 1, "%s: ERROR: invalid floating-point value\n", fn);
return false;
}
for(i = 0; i < 8; ++i)
p |= (FLAC__uint64)(buf[i+2])<<(56U-i*8);
*val = (FLAC__uint32)((p>>shift)+(p>>(shift-1) & 0x1));
return true;
}
FLAC__bool fskip_ahead(FILE *f, FLAC__uint64 offset)
{
static unsigned char dump[8192];
struct flac_stat_s stb;
if(flac_fstat(fileno(f), &stb) == 0 && (stb.st_mode & S_IFMT) == S_IFREG)
{
if(fseeko(f, offset, SEEK_CUR) == 0)
return true;
}
while(offset > 0) {
const long need = (long)min(offset, sizeof(dump));
if((long)fread(dump, 1, need, f) < need)
return false;
offset -= need;
}
return true;
}
unsigned count_channel_mask_bits(FLAC__uint32 mask)
{
unsigned count = 0;
while(mask) {
if(mask & 1)
count++;
mask >>= 1;
}
return count;
}
#if 0
FLAC__uint32 limit_channel_mask(FLAC__uint32 mask, unsigned channels)
{
FLAC__uint32 x = 0x80000000;
unsigned count = count_channel_mask_bits(mask);
while(x && count > channels) {
if(mask & x) {
mask &= ~x;
count--;
}
x >>= 1;
}
FLAC__ASSERT(count_channel_mask_bits(mask) == channels);
return mask;
}
#endif
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