mpd/src/decoder/flac_plugin.c

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/*
* Copyright (C) 2003-2009 The Music Player Daemon Project
* http://www.musicpd.org
*
* 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.
*/
#include "_flac_common.h"
#include <glib.h>
#include <assert.h>
#include <unistd.h>
#include <sys/stat.h>
#include <sys/types.h>
#ifdef HAVE_CUE /* libcue */
#include "../cue/cue_tag.h"
#endif
/* this code was based on flac123, from flac-tools */
static flac_read_status
flac_read_cb(G_GNUC_UNUSED const flac_decoder *fd,
FLAC__byte buf[], flac_read_status_size_t *bytes,
void *fdata)
{
struct flac_data *data = fdata;
size_t r;
r = decoder_read(data->decoder, data->input_stream,
(void *)buf, *bytes);
*bytes = r;
if (r == 0) {
if (decoder_get_command(data->decoder) != DECODE_COMMAND_NONE ||
input_stream_eof(data->input_stream))
return flac_read_status_eof;
else
return flac_read_status_abort;
}
return flac_read_status_continue;
}
static flac_seek_status
flac_seek_cb(G_GNUC_UNUSED const flac_decoder *fd,
FLAC__uint64 offset, void *fdata)
{
struct flac_data *data = (struct flac_data *) fdata;
if (!input_stream_seek(data->input_stream, offset, SEEK_SET))
return flac_seek_status_error;
return flac_seek_status_ok;
}
static flac_tell_status
flac_tell_cb(G_GNUC_UNUSED const flac_decoder *fd,
FLAC__uint64 * offset, void *fdata)
{
struct flac_data *data = (struct flac_data *) fdata;
*offset = (long)(data->input_stream->offset);
return flac_tell_status_ok;
}
static flac_length_status
flac_length_cb(G_GNUC_UNUSED const flac_decoder *fd,
FLAC__uint64 * length, void *fdata)
{
struct flac_data *data = (struct flac_data *) fdata;
if (data->input_stream->size < 0)
return flac_length_status_unsupported;
*length = (size_t) (data->input_stream->size);
return flac_length_status_ok;
}
static FLAC__bool
flac_eof_cb(G_GNUC_UNUSED const flac_decoder *fd, void *fdata)
{
struct flac_data *data = (struct flac_data *) fdata;
return (decoder_get_command(data->decoder) != DECODE_COMMAND_NONE &&
decoder_get_command(data->decoder) != DECODE_COMMAND_SEEK) ||
input_stream_eof(data->input_stream);
}
static void
flac_error_cb(G_GNUC_UNUSED const flac_decoder *fd,
FLAC__StreamDecoderErrorStatus status, void *fdata)
{
flac_error_common_cb("flac", status, (struct flac_data *) fdata);
}
#if !defined(FLAC_API_VERSION_CURRENT) || FLAC_API_VERSION_CURRENT <= 7
static void flacPrintErroredState(FLAC__SeekableStreamDecoderState state)
{
const char *str = ""; /* "" to silence compiler warning */
switch (state) {
case FLAC__SEEKABLE_STREAM_DECODER_OK:
case FLAC__SEEKABLE_STREAM_DECODER_SEEKING:
case FLAC__SEEKABLE_STREAM_DECODER_END_OF_STREAM:
return;
case FLAC__SEEKABLE_STREAM_DECODER_MEMORY_ALLOCATION_ERROR:
str = "allocation error";
break;
case FLAC__SEEKABLE_STREAM_DECODER_READ_ERROR:
str = "read error";
break;
case FLAC__SEEKABLE_STREAM_DECODER_SEEK_ERROR:
str = "seek error";
break;
case FLAC__SEEKABLE_STREAM_DECODER_STREAM_DECODER_ERROR:
str = "seekable stream error";
break;
case FLAC__SEEKABLE_STREAM_DECODER_ALREADY_INITIALIZED:
str = "decoder already initialized";
break;
case FLAC__SEEKABLE_STREAM_DECODER_INVALID_CALLBACK:
str = "invalid callback";
break;
case FLAC__SEEKABLE_STREAM_DECODER_UNINITIALIZED:
str = "decoder uninitialized";
}
g_warning("%s\n", str);
}
2009-01-15 19:57:57 +01:00
static bool
flac_init(FLAC__SeekableStreamDecoder *dec,
FLAC__SeekableStreamDecoderReadCallback read_cb,
FLAC__SeekableStreamDecoderSeekCallback seek_cb,
FLAC__SeekableStreamDecoderTellCallback tell_cb,
FLAC__SeekableStreamDecoderLengthCallback length_cb,
FLAC__SeekableStreamDecoderEofCallback eof_cb,
FLAC__SeekableStreamDecoderWriteCallback write_cb,
FLAC__SeekableStreamDecoderMetadataCallback metadata_cb,
FLAC__SeekableStreamDecoderErrorCallback error_cb,
void *data)
{
2009-01-15 19:57:57 +01:00
return FLAC__seekable_stream_decoder_set_read_callback(dec, read_cb) &&
FLAC__seekable_stream_decoder_set_seek_callback(dec, seek_cb) &&
FLAC__seekable_stream_decoder_set_tell_callback(dec, tell_cb) &&
FLAC__seekable_stream_decoder_set_length_callback(dec, length_cb) &&
FLAC__seekable_stream_decoder_set_eof_callback(dec, eof_cb) &&
FLAC__seekable_stream_decoder_set_write_callback(dec, write_cb) &&
FLAC__seekable_stream_decoder_set_metadata_callback(dec, metadata_cb) &&
FLAC__seekable_stream_decoder_set_metadata_respond(dec, FLAC__METADATA_TYPE_VORBIS_COMMENT) &&
FLAC__seekable_stream_decoder_set_error_callback(dec, error_cb) &&
FLAC__seekable_stream_decoder_set_client_data(dec, data) &&
FLAC__seekable_stream_decoder_init(dec) == FLAC__SEEKABLE_STREAM_DECODER_OK;
}
#else /* FLAC_API_VERSION_CURRENT >= 7 */
static void flacPrintErroredState(FLAC__StreamDecoderState state)
{
const char *str = ""; /* "" to silence compiler warning */
switch (state) {
case FLAC__STREAM_DECODER_SEARCH_FOR_METADATA:
case FLAC__STREAM_DECODER_READ_METADATA:
case FLAC__STREAM_DECODER_SEARCH_FOR_FRAME_SYNC:
case FLAC__STREAM_DECODER_READ_FRAME:
case FLAC__STREAM_DECODER_END_OF_STREAM:
return;
case FLAC__STREAM_DECODER_OGG_ERROR:
str = "error in the Ogg layer";
break;
case FLAC__STREAM_DECODER_SEEK_ERROR:
str = "seek error";
break;
case FLAC__STREAM_DECODER_ABORTED:
str = "decoder aborted by read";
break;
case FLAC__STREAM_DECODER_MEMORY_ALLOCATION_ERROR:
str = "allocation error";
break;
case FLAC__STREAM_DECODER_UNINITIALIZED:
str = "decoder uninitialized";
}
g_warning("%s\n", str);
}
#endif /* FLAC_API_VERSION_CURRENT >= 7 */
static void flacMetadata(G_GNUC_UNUSED const flac_decoder * dec,
const FLAC__StreamMetadata * block, void *vdata)
{
flac_metadata_common_cb(block, (struct flac_data *) vdata);
}
static FLAC__StreamDecoderWriteStatus
flac_write_cb(const flac_decoder *dec, const FLAC__Frame *frame,
const FLAC__int32 *const buf[], void *vdata)
{
FLAC__uint32 samples = frame->header.blocksize;
struct flac_data *data = (struct flac_data *) vdata;
float timeChange;
FLAC__uint64 newPosition = 0;
timeChange = ((float)samples) / frame->header.sample_rate;
data->time += timeChange;
flac_get_decode_position(dec, &newPosition);
if (data->position && newPosition >= data->position) {
assert(timeChange >= 0);
data->bit_rate =
((newPosition - data->position) * 8.0 / timeChange)
/ 1000 + 0.5;
}
data->position = newPosition;
return flac_common_write(data, frame, buf);
}
static struct tag *
flac_tag_load(const char *file, const char *char_tnum)
{
struct tag *tag;
FLAC__Metadata_SimpleIterator *it;
FLAC__StreamMetadata *block = NULL;
it = FLAC__metadata_simple_iterator_new();
if (!FLAC__metadata_simple_iterator_init(it, file, 1, 0)) {
const char *err;
FLAC_API FLAC__Metadata_SimpleIteratorStatus s;
s = FLAC__metadata_simple_iterator_status(it);
switch (s) { /* slightly more human-friendly messages: */
case FLAC__METADATA_SIMPLE_ITERATOR_STATUS_ILLEGAL_INPUT:
err = "illegal input";
break;
case FLAC__METADATA_SIMPLE_ITERATOR_STATUS_ERROR_OPENING_FILE:
err = "error opening file";
break;
case FLAC__METADATA_SIMPLE_ITERATOR_STATUS_NOT_A_FLAC_FILE:
err = "not a FLAC file";
break;
default:
err = FLAC__Metadata_SimpleIteratorStatusString[s];
}
g_debug("Reading '%s' metadata gave the following error: %s\n",
file, err);
FLAC__metadata_simple_iterator_delete(it);
return NULL;
}
tag = tag_new();
do {
block = FLAC__metadata_simple_iterator_get_block(it);
if (!block)
break;
if (block->type == FLAC__METADATA_TYPE_VORBIS_COMMENT) {
flac_vorbis_comments_to_tag(tag, char_tnum, block);
} else if (block->type == FLAC__METADATA_TYPE_STREAMINFO) {
tag->time = ((float)block->data.stream_info.total_samples) /
block->data.stream_info.sample_rate + 0.5;
}
FLAC__metadata_object_delete(block);
} while (FLAC__metadata_simple_iterator_next(it));
FLAC__metadata_simple_iterator_delete(it);
if (!tag_is_defined(tag)) {
tag_free(tag);
tag = NULL;
}
return tag;
}
#if defined(FLAC_API_VERSION_CURRENT) && FLAC_API_VERSION_CURRENT > 7
static struct tag *
flac_cue_tag_load(const char *file)
{
struct tag* tag = NULL;
char* char_tnum = NULL;
char* ptr = NULL;
unsigned int tnum = 0;
unsigned int sample_rate = 0;
FLAC__uint64 track_time = 0;
#ifdef HAVE_CUE /* libcue */
FLAC__StreamMetadata* vc = FLAC__metadata_object_new(FLAC__METADATA_TYPE_VORBIS_COMMENT);
char* cs_filename;
FILE* cs_file;
#endif /* libcue */
FLAC__StreamMetadata* si = FLAC__metadata_object_new(FLAC__METADATA_TYPE_STREAMINFO);
FLAC__StreamMetadata* cs = FLAC__metadata_object_new(FLAC__METADATA_TYPE_CUESHEET);
tnum = flac_vtrack_tnum(file);
char_tnum = g_strdup_printf("%u", tnum);
ptr = strrchr(file, '/');
*ptr = '\0';
#ifdef HAVE_CUE /* libcue */
if (FLAC__metadata_get_tags(file, &vc))
{
for (unsigned i = 0; i < vc->data.vorbis_comment.num_comments;
i++)
{
if ((ptr = (char*)vc->data.vorbis_comment.comments[i].entry) != NULL)
{
if (g_ascii_strncasecmp(ptr, "cuesheet", 8) == 0)
{
while (*(++ptr) != '=');
tag = cue_tag_string( ++ptr,
tnum);
}
}
}
FLAC__metadata_object_delete(vc);
}
if (tag == NULL) {
cs_filename = g_strconcat(file, ".cue", NULL);
cs_file = fopen(cs_filename, "rt");
g_free(cs_filename);
if (cs_file != NULL) {
tag = cue_tag_file(cs_file, tnum);
fclose(cs_file);
}
}
#endif /* libcue */
if (tag == NULL)
tag = flac_tag_load(file, char_tnum);
if (char_tnum != NULL)
{
tag_add_item( tag,
TAG_ITEM_TRACK,
char_tnum);
g_free(char_tnum);
}
if (FLAC__metadata_get_streaminfo(file, si))
{
sample_rate = si->data.stream_info.sample_rate;
FLAC__metadata_object_delete(si);
}
if (FLAC__metadata_get_cuesheet(file, &cs))
{
if (cs->data.cue_sheet.tracks != NULL
&& (tnum <= cs->data.cue_sheet.num_tracks - 1))
{
2009-03-31 22:06:28 +02:00
track_time = cs->data.cue_sheet.tracks[tnum].offset
- cs->data.cue_sheet.tracks[tnum - 1].offset;
}
FLAC__metadata_object_delete(cs);
}
if (sample_rate != 0)
{
tag->time = (unsigned int)(track_time/sample_rate);
}
return tag;
}
#endif /* FLAC_API_VERSION_CURRENT >= 7 */
static struct tag *
flac_tag_dup(const char *file)
{
#if defined(FLAC_API_VERSION_CURRENT) && FLAC_API_VERSION_CURRENT > 7
struct stat st;
if (stat(file, &st) < 0)
return flac_cue_tag_load(file);
else
#endif /* FLAC_API_VERSION_CURRENT >= 7 */
return flac_tag_load(file, NULL);
}
static void
flac_decode_internal(struct decoder * decoder,
struct input_stream *input_stream,
bool is_ogg)
{
flac_decoder *flac_dec;
struct flac_data data;
enum decoder_command cmd;
const char *err = NULL;
if (!(flac_dec = flac_new()))
return;
flac_data_init(&data, decoder, input_stream);
data.tag = tag_new();
#if defined(FLAC_API_VERSION_CURRENT) && FLAC_API_VERSION_CURRENT > 7
if(!FLAC__stream_decoder_set_metadata_respond(flac_dec, FLAC__METADATA_TYPE_VORBIS_COMMENT))
{
g_debug("Failed to set metadata respond\n");
}
#endif
if (is_ogg) {
if (!flac_ogg_init(flac_dec, flac_read_cb,
flac_seek_cb, flac_tell_cb,
flac_length_cb, flac_eof_cb,
flac_write_cb, flacMetadata,
flac_error_cb, (void *)&data)) {
err = "doing Ogg init()";
goto fail;
}
} else {
if (!flac_init(flac_dec, flac_read_cb,
flac_seek_cb, flac_tell_cb,
flac_length_cb, flac_eof_cb,
flac_write_cb, flacMetadata,
flac_error_cb, (void *)&data)) {
err = "doing init()";
goto fail;
}
}
if (!flac_process_metadata(flac_dec)) {
err = "problem reading metadata";
goto fail;
}
if (!audio_format_valid(&data.audio_format)) {
g_warning("Invalid audio format: %u:%u:%u\n",
data.audio_format.sample_rate,
data.audio_format.bits,
data.audio_format.channels);
goto fail;
}
decoder_initialized(decoder, &data.audio_format,
input_stream->seekable, data.total_time);
while (true) {
if (!tag_is_empty(data.tag)) {
cmd = decoder_tag(decoder, input_stream, data.tag);
tag_free(data.tag);
data.tag = tag_new();
} else
cmd = decoder_get_command(decoder);
if (cmd == DECODE_COMMAND_SEEK) {
FLAC__uint64 seek_sample = decoder_seek_where(decoder) *
data.audio_format.sample_rate + 0.5;
if (flac_seek_absolute(flac_dec, seek_sample)) {
data.time = ((float)seek_sample) /
data.audio_format.sample_rate;
data.position = 0;
decoder_command_finished(decoder);
} else
decoder_seek_error(decoder);
} else if (cmd == DECODE_COMMAND_STOP ||
flac_get_state(flac_dec) == flac_decoder_eof)
break;
if (!flac_process_single(flac_dec)) {
cmd = decoder_get_command(decoder);
if (cmd != DECODE_COMMAND_SEEK)
break;
}
}
if (cmd != DECODE_COMMAND_STOP) {
flacPrintErroredState(flac_get_state(flac_dec));
flac_finish(flac_dec);
}
fail:
if (data.replay_gain_info)
replay_gain_info_free(data.replay_gain_info);
tag_free(data.tag);
if (flac_dec)
flac_delete(flac_dec);
if (err)
g_warning("%s\n", err);
}
static void
flac_decode(struct decoder * decoder, struct input_stream *input_stream)
{
flac_decode_internal(decoder, input_stream, false);
}
#if defined(FLAC_API_VERSION_CURRENT) && FLAC_API_VERSION_CURRENT > 7
/**
* @brief Decode a flac file with embedded cue sheets
* @param const char* fname filename on fs
*/
static void
flac_container_decode(struct decoder* decoder,
const char* fname,
bool is_ogg)
{
unsigned int tnum = 0;
FLAC__uint64 t_start = 0;
FLAC__uint64 t_end = 0;
FLAC__uint64 track_time = 0;
FLAC__StreamMetadata* cs = NULL;
flac_decoder *flac_dec;
struct flac_data data;
const char *err = NULL;
char* pathname = g_strdup(fname);
char* slash = strrchr(pathname, '/');
*slash = '\0';
tnum = flac_vtrack_tnum(fname);
cs = FLAC__metadata_object_new(FLAC__METADATA_TYPE_CUESHEET);
FLAC__metadata_get_cuesheet(pathname, &cs);
if (cs != NULL)
{
if (cs->data.cue_sheet.tracks != NULL
&& (tnum <= cs->data.cue_sheet.num_tracks - 1))
{
t_start = cs->data.cue_sheet.tracks[tnum - 1].offset;
t_end = cs->data.cue_sheet.tracks[tnum].offset;
track_time = cs->data.cue_sheet.tracks[tnum].offset
- cs->data.cue_sheet.tracks[tnum - 1].offset;
}
FLAC__metadata_object_delete(cs);
}
else
{
g_free(pathname);
return;
}
if (!(flac_dec = flac_new()))
{
g_free(pathname);
return;
}
flac_data_init(&data, decoder, NULL);
#if defined(FLAC_API_VERSION_CURRENT) && FLAC_API_VERSION_CURRENT > 7
if(!FLAC__stream_decoder_set_metadata_respond(flac_dec, FLAC__METADATA_TYPE_VORBIS_COMMENT))
{
g_debug("Failed to set metadata respond\n");
}
#endif
if (is_ogg)
{
if (FLAC__stream_decoder_init_ogg_file( flac_dec,
pathname,
flac_write_cb,
flacMetadata,
flac_error_cb,
(void*) &data )
!= FLAC__STREAM_DECODER_INIT_STATUS_OK )
{
err = "doing Ogg init()";
goto fail;
}
}
else
{
if (FLAC__stream_decoder_init_file( flac_dec,
pathname,
flac_write_cb,
flacMetadata,
flac_error_cb,
(void*) &data )
!= FLAC__STREAM_DECODER_INIT_STATUS_OK )
{
err = "doing init()";
goto fail;
}
}
if (!flac_process_metadata(flac_dec))
{
err = "problem reading metadata";
goto fail;
}
if (!audio_format_valid(&data.audio_format))
{
g_warning("Invalid audio format: %u:%u:%u\n",
data.audio_format.sample_rate,
data.audio_format.bits,
data.audio_format.channels);
goto fail;
}
// set track time (order is important: after stream init)
data.total_time = ((float)track_time / (float)data.audio_format.sample_rate);
data.position = 0;
decoder_initialized(decoder, &data.audio_format,
true, data.total_time);
// seek to song start (order is important: after decoder init)
flac_seek_absolute(flac_dec, (FLAC__uint64)t_start);
while (true)
{
if (!flac_process_single(flac_dec))
break;
// we only need to break at the end of track if we are in "cue mode"
if (data.time >= data.total_time)
{
flacPrintErroredState(flac_get_state(flac_dec));
flac_finish(flac_dec);
}
if (decoder_get_command(decoder) == DECODE_COMMAND_SEEK)
{
FLAC__uint64 seek_sample = t_start +
(decoder_seek_where(decoder) * data.audio_format.sample_rate);
//if (seek_sample >= t_start && seek_sample <= t_end && data.total_time > 30)
if (seek_sample >= t_start && seek_sample <= t_end)
{
if (flac_seek_absolute(flac_dec, (FLAC__uint64)seek_sample))
{
data.time = (float)(seek_sample - t_start) /
data.audio_format.sample_rate;
data.position = 0;
decoder_command_finished(decoder);
}
else
decoder_seek_error(decoder);
//decoder_command_finished(decoder);
}
}
else if (flac_get_state(flac_dec) == flac_decoder_eof)
break;
}
if (decoder_get_command(decoder) != DECODE_COMMAND_STOP)
{
flacPrintErroredState(flac_get_state(flac_dec));
flac_finish(flac_dec);
}
fail:
if (pathname)
g_free(pathname);
if (data.replay_gain_info)
replay_gain_info_free(data.replay_gain_info);
if (flac_dec)
flac_delete(flac_dec);
if (err)
g_warning("%s\n", err);
}
/**
* @brief Open a flac file for decoding
* @param const char* fname filename on fs
*/
static void
flac_filedecode_internal(struct decoder* decoder,
const char* fname,
bool is_ogg)
{
flac_decoder *flac_dec;
struct flac_data data;
const char *err = NULL;
unsigned int flac_err_state = 0;
if (!(flac_dec = flac_new()))
return;
flac_data_init(&data, decoder, NULL);
#if defined(FLAC_API_VERSION_CURRENT) && FLAC_API_VERSION_CURRENT > 7
if(!FLAC__stream_decoder_set_metadata_respond(flac_dec, FLAC__METADATA_TYPE_VORBIS_COMMENT))
{
g_debug("Failed to set metadata respond\n");
}
#endif
if (is_ogg)
{
if ( (flac_err_state = FLAC__stream_decoder_init_ogg_file( flac_dec,
fname,
flac_write_cb,
flacMetadata,
flac_error_cb,
(void*) &data ))
== FLAC__STREAM_DECODER_INIT_STATUS_ERROR_OPENING_FILE)
{
flac_container_decode(decoder, fname, is_ogg);
}
else if (flac_err_state != FLAC__STREAM_DECODER_INIT_STATUS_OK)
{
err = "doing Ogg init()";
goto fail;
}
}
else
{
if ( (flac_err_state = FLAC__stream_decoder_init_file( flac_dec,
fname,
flac_write_cb,
flacMetadata,
flac_error_cb,
(void*) &data ))
== FLAC__STREAM_DECODER_INIT_STATUS_ERROR_OPENING_FILE)
{
flac_container_decode(decoder, fname, is_ogg);
}
else if (flac_err_state != FLAC__STREAM_DECODER_INIT_STATUS_OK)
{
err = "doing init()";
goto fail;
}
}
if (!flac_process_metadata(flac_dec))
{
err = "problem reading metadata";
goto fail;
}
if (!audio_format_valid(&data.audio_format))
{
g_warning("Invalid audio format: %u:%u:%u\n",
data.audio_format.sample_rate,
data.audio_format.bits,
data.audio_format.channels);
goto fail;
}
decoder_initialized(decoder, &data.audio_format,
true, data.total_time);
while (true)
{
if (!flac_process_single(flac_dec))
break;
if (decoder_get_command(decoder) == DECODE_COMMAND_SEEK)
{
FLAC__uint64 seek_sample = decoder_seek_where(decoder) *
data.audio_format.sample_rate + 0.5;
if (flac_seek_absolute(flac_dec, seek_sample))
{
data.time = ((float)seek_sample) /
data.audio_format.sample_rate;
data.position = 0;
decoder_command_finished(decoder);
}
else
decoder_seek_error(decoder);
}
else if (flac_get_state(flac_dec) == flac_decoder_eof)
break;
}
if (decoder_get_command(decoder) != DECODE_COMMAND_STOP)
{
flacPrintErroredState(flac_get_state(flac_dec));
flac_finish(flac_dec);
}
fail:
if (data.replay_gain_info)
replay_gain_info_free(data.replay_gain_info);
if (flac_dec)
flac_delete(flac_dec);
if (err)
g_warning("%s\n", err);
}
/**
* @brief wrapper function for
* flac_filedecode_internal method
* for decoding without ogg
*/
static void
flac_filedecode(struct decoder *decoder, const char *fname)
{
struct stat st;
if (stat(fname, &st) < 0) {
flac_container_decode(decoder, fname, false);
} else
flac_filedecode_internal(decoder, fname, false);
}
#endif /* FLAC_API_VERSION_CURRENT >= 7 */
#ifndef HAVE_OGGFLAC
static bool
oggflac_init(G_GNUC_UNUSED const struct config_param *param)
{
#if defined(FLAC_API_VERSION_CURRENT) && FLAC_API_VERSION_CURRENT > 7
return !!FLAC_API_SUPPORTS_OGG_FLAC;
#else
/* disable oggflac when libflac is too old */
return false;
#endif
}
#if defined(FLAC_API_VERSION_CURRENT) && FLAC_API_VERSION_CURRENT > 7
static struct tag *
oggflac_tag_dup(const char *file)
{
struct tag *ret = NULL;
FLAC__Metadata_Iterator *it;
FLAC__StreamMetadata *block;
FLAC__Metadata_Chain *chain = FLAC__metadata_chain_new();
if (!(FLAC__metadata_chain_read_ogg(chain, file)))
goto out;
it = FLAC__metadata_iterator_new();
FLAC__metadata_iterator_init(it, chain);
ret = tag_new();
do {
if (!(block = FLAC__metadata_iterator_get_block(it)))
break;
if (block->type == FLAC__METADATA_TYPE_VORBIS_COMMENT) {
flac_vorbis_comments_to_tag(ret, NULL, block);
} else if (block->type == FLAC__METADATA_TYPE_STREAMINFO) {
ret->time = ((float)block->data.stream_info.
total_samples) /
block->data.stream_info.sample_rate + 0.5;
}
} while (FLAC__metadata_iterator_next(it));
FLAC__metadata_iterator_delete(it);
if (!tag_is_defined(ret)) {
tag_free(ret);
ret = NULL;
}
out:
FLAC__metadata_chain_delete(chain);
return ret;
}
static void
oggflac_decode(struct decoder *decoder, struct input_stream *input_stream)
{
if (ogg_stream_type_detect(input_stream) != FLAC)
return;
/* rewind the stream, because ogg_stream_type_detect() has
moved it */
input_stream_seek(input_stream, 0, SEEK_SET);
flac_decode_internal(decoder, input_stream, true);
}
static const char *const oggflac_suffixes[] = { "ogg", "oga", NULL };
static const char *const oggflac_mime_types[] = {
"audio/x-flac+ogg",
"application/ogg",
"application/x-ogg",
NULL
};
#endif /* FLAC_API_VERSION_CURRENT >= 7 */
const struct decoder_plugin oggflac_decoder_plugin = {
.name = "oggflac",
.init = oggflac_init,
#if defined(FLAC_API_VERSION_CURRENT) && FLAC_API_VERSION_CURRENT > 7
.stream_decode = oggflac_decode,
.tag_dup = oggflac_tag_dup,
.suffixes = oggflac_suffixes,
.mime_types = oggflac_mime_types
#endif
};
#endif /* HAVE_OGGFLAC */
static const char *const flac_suffixes[] = { "flac", NULL };
static const char *const flac_mime_types[] = {
"audio/x-flac", "application/x-flac", NULL
};
const struct decoder_plugin flac_decoder_plugin = {
.name = "flac",
.stream_decode = flac_decode,
#if defined(FLAC_API_VERSION_CURRENT) && FLAC_API_VERSION_CURRENT > 7
.file_decode = flac_filedecode,
#endif /* FLAC_API_VERSION_CURRENT >= 7 */
.tag_dup = flac_tag_dup,
.suffixes = flac_suffixes,
.mime_types = flac_mime_types,
#if defined(FLAC_API_VERSION_CURRENT) && FLAC_API_VERSION_CURRENT > 7
.container_scan = flac_cue_track,
#endif /* FLAC_API_VERSION_CURRENT >= 7 */
};