diff options
Diffstat (limited to 'src/decoder/flac_decoder_plugin.c')
| -rw-r--r-- | src/decoder/flac_decoder_plugin.c | 486 |
1 files changed, 0 insertions, 486 deletions
diff --git a/src/decoder/flac_decoder_plugin.c b/src/decoder/flac_decoder_plugin.c deleted file mode 100644 index fb0b3502d..000000000 --- a/src/decoder/flac_decoder_plugin.c +++ /dev/null @@ -1,486 +0,0 @@ -/* - * Copyright (C) 2003-2011 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 "config.h" /* must be first for large file support */ -#include "_flac_common.h" -#include "flac_compat.h" -#include "flac_metadata.h" - -#if defined(FLAC_API_VERSION_CURRENT) && FLAC_API_VERSION_CURRENT > 7 -#include "_ogg_common.h" -#endif - -#include <glib.h> - -#include <assert.h> -#include <unistd.h> - -#include <sys/stat.h> -#include <sys/types.h> - -/* this code was based on flac123, from flac-tools */ - -static FLAC__StreamDecoderReadStatus -flac_read_cb(G_GNUC_UNUSED const FLAC__StreamDecoder *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_lock_eof(data->input_stream)) - return FLAC__STREAM_DECODER_READ_STATUS_END_OF_STREAM; - else - return FLAC__STREAM_DECODER_READ_STATUS_ABORT; - } - - return FLAC__STREAM_DECODER_READ_STATUS_CONTINUE; -} - -static FLAC__StreamDecoderSeekStatus -flac_seek_cb(G_GNUC_UNUSED const FLAC__StreamDecoder *fd, - FLAC__uint64 offset, void *fdata) -{ - struct flac_data *data = (struct flac_data *) fdata; - - if (!data->input_stream->seekable) - return FLAC__STREAM_DECODER_SEEK_STATUS_UNSUPPORTED; - - if (!input_stream_lock_seek(data->input_stream, offset, SEEK_SET, - NULL)) - return FLAC__STREAM_DECODER_SEEK_STATUS_ERROR; - - return FLAC__STREAM_DECODER_SEEK_STATUS_OK; -} - -static FLAC__StreamDecoderTellStatus -flac_tell_cb(G_GNUC_UNUSED const FLAC__StreamDecoder *fd, - FLAC__uint64 * offset, void *fdata) -{ - struct flac_data *data = (struct flac_data *) fdata; - - if (!data->input_stream->seekable) - return FLAC__STREAM_DECODER_TELL_STATUS_UNSUPPORTED; - - *offset = (long)(data->input_stream->offset); - - return FLAC__STREAM_DECODER_TELL_STATUS_OK; -} - -static FLAC__StreamDecoderLengthStatus -flac_length_cb(G_GNUC_UNUSED const FLAC__StreamDecoder *fd, - FLAC__uint64 * length, void *fdata) -{ - struct flac_data *data = (struct flac_data *) fdata; - - if (data->input_stream->size < 0) - return FLAC__STREAM_DECODER_LENGTH_STATUS_UNSUPPORTED; - - *length = (size_t) (data->input_stream->size); - - return FLAC__STREAM_DECODER_LENGTH_STATUS_OK; -} - -static FLAC__bool -flac_eof_cb(G_GNUC_UNUSED const FLAC__StreamDecoder *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_lock_eof(data->input_stream); -} - -static void -flac_error_cb(G_GNUC_UNUSED const FLAC__StreamDecoder *fd, - FLAC__StreamDecoderErrorStatus status, void *fdata) -{ - flac_error_common_cb(status, (struct flac_data *) fdata); -} - -#if !defined(FLAC_API_VERSION_CURRENT) || FLAC_API_VERSION_CURRENT <= 7 -static void flacPrintErroredState(FLAC__SeekableStreamDecoderState state) -{ - 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: - case FLAC__SEEKABLE_STREAM_DECODER_READ_ERROR: - case FLAC__SEEKABLE_STREAM_DECODER_SEEK_ERROR: - case FLAC__SEEKABLE_STREAM_DECODER_STREAM_DECODER_ERROR: - case FLAC__SEEKABLE_STREAM_DECODER_ALREADY_INITIALIZED: - case FLAC__SEEKABLE_STREAM_DECODER_INVALID_CALLBACK: - case FLAC__SEEKABLE_STREAM_DECODER_UNINITIALIZED: - break; - } - - g_warning("%s\n", FLAC__SeekableStreamDecoderStateString[state]); -} -#else /* FLAC_API_VERSION_CURRENT >= 7 */ -static void flacPrintErroredState(FLAC__StreamDecoderState state) -{ - 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: - case FLAC__STREAM_DECODER_SEEK_ERROR: - case FLAC__STREAM_DECODER_ABORTED: - case FLAC__STREAM_DECODER_MEMORY_ALLOCATION_ERROR: - case FLAC__STREAM_DECODER_UNINITIALIZED: - break; - } - - g_warning("%s\n", FLAC__StreamDecoderStateString[state]); -} -#endif /* FLAC_API_VERSION_CURRENT >= 7 */ - -static void flacMetadata(G_GNUC_UNUSED const FLAC__StreamDecoder * dec, - const FLAC__StreamMetadata * block, void *vdata) -{ - flac_metadata_common_cb(block, (struct flac_data *) vdata); -} - -static FLAC__StreamDecoderWriteStatus -flac_write_cb(const FLAC__StreamDecoder *dec, const FLAC__Frame *frame, - const FLAC__int32 *const buf[], void *vdata) -{ - struct flac_data *data = (struct flac_data *) vdata; - FLAC__uint64 nbytes = 0; - - if (FLAC__stream_decoder_get_decode_position(dec, &nbytes)) { - if (data->position > 0 && nbytes > data->position) { - nbytes -= data->position; - data->position += nbytes; - } else { - data->position = nbytes; - nbytes = 0; - } - } else - nbytes = 0; - - return flac_common_write(data, frame, buf, nbytes); -} - -static bool -flac_scan_file(const char *file, - const struct tag_handler *handler, void *handler_ctx) -{ - return flac_scan_file2(file, NULL, handler, handler_ctx); -} - -/** - * Some glue code around FLAC__stream_decoder_new(). - */ -static FLAC__StreamDecoder * -flac_decoder_new(void) -{ - FLAC__StreamDecoder *sd = FLAC__stream_decoder_new(); - if (sd == NULL) { - g_warning("FLAC__stream_decoder_new() failed"); - return NULL; - } - -#if defined(FLAC_API_VERSION_CURRENT) && FLAC_API_VERSION_CURRENT > 7 - if(!FLAC__stream_decoder_set_metadata_respond(sd, FLAC__METADATA_TYPE_VORBIS_COMMENT)) - g_debug("FLAC__stream_decoder_set_metadata_respond() has failed"); -#endif - - return sd; -} - -static bool -flac_decoder_initialize(struct flac_data *data, FLAC__StreamDecoder *sd, - FLAC__uint64 duration) -{ - data->total_frames = duration; - - if (!FLAC__stream_decoder_process_until_end_of_metadata(sd)) { - g_warning("problem reading metadata"); - return false; - } - - if (data->initialized) { - /* done */ - decoder_initialized(data->decoder, &data->audio_format, - data->input_stream->seekable, - (float)data->total_frames / - (float)data->audio_format.sample_rate); - return true; - } - - if (data->input_stream->seekable) - /* allow the workaround below only for nonseekable - streams*/ - return false; - - /* no stream_info packet found; try to initialize the decoder - from the first frame header */ - FLAC__stream_decoder_process_single(sd); - return data->initialized; -} - -static void -flac_decoder_loop(struct flac_data *data, FLAC__StreamDecoder *flac_dec, - FLAC__uint64 t_start, FLAC__uint64 t_end) -{ - struct decoder *decoder = data->decoder; - enum decoder_command cmd; - - data->first_frame = t_start; - - while (true) { - if (data->tag != NULL && !tag_is_empty(data->tag)) { - cmd = decoder_tag(data->decoder, data->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 = t_start + - decoder_seek_where(decoder) * - data->audio_format.sample_rate; - if (seek_sample >= t_start && - (t_end == 0 || seek_sample <= t_end) && - FLAC__stream_decoder_seek_absolute(flac_dec, seek_sample)) { - data->next_frame = seek_sample; - data->position = 0; - decoder_command_finished(decoder); - } else - decoder_seek_error(decoder); - } else if (cmd == DECODE_COMMAND_STOP || - FLAC__stream_decoder_get_state(flac_dec) == FLAC__STREAM_DECODER_END_OF_STREAM) - break; - - if (t_end != 0 && data->next_frame >= t_end) - /* end of this sub track */ - break; - - if (!FLAC__stream_decoder_process_single(flac_dec) && - decoder_get_command(decoder) == DECODE_COMMAND_NONE) { - /* a failure that was not triggered by a - decoder command */ - flacPrintErroredState(FLAC__stream_decoder_get_state(flac_dec)); - break; - } - } -} - -static FLAC__StreamDecoderInitStatus -stream_init_oggflac(FLAC__StreamDecoder *flac_dec, struct flac_data *data) -{ -#if defined(FLAC_API_VERSION_CURRENT) && FLAC_API_VERSION_CURRENT > 7 - return FLAC__stream_decoder_init_ogg_stream(flac_dec, - flac_read_cb, - flac_seek_cb, - flac_tell_cb, - flac_length_cb, - flac_eof_cb, - flac_write_cb, - flacMetadata, - flac_error_cb, - data); -#else - (void)flac_dec; - (void)data; - - return FLAC__STREAM_DECODER_INIT_STATUS_ERROR; -#endif -} - -static FLAC__StreamDecoderInitStatus -stream_init_flac(FLAC__StreamDecoder *flac_dec, struct flac_data *data) -{ - return FLAC__stream_decoder_init_stream(flac_dec, - flac_read_cb, flac_seek_cb, - flac_tell_cb, flac_length_cb, - flac_eof_cb, flac_write_cb, - flacMetadata, - flac_error_cb, - data); -} - -static FLAC__StreamDecoderInitStatus -stream_init(FLAC__StreamDecoder *flac_dec, struct flac_data *data, bool is_ogg) -{ - return is_ogg - ? stream_init_oggflac(flac_dec, data) - : stream_init_flac(flac_dec, data); -} - -static void -flac_decode_internal(struct decoder * decoder, - struct input_stream *input_stream, - bool is_ogg) -{ - FLAC__StreamDecoder *flac_dec; - struct flac_data data; - - flac_dec = flac_decoder_new(); - if (flac_dec == NULL) - return; - - flac_data_init(&data, decoder, input_stream); - data.tag = tag_new(); - - FLAC__StreamDecoderInitStatus status = - stream_init(flac_dec, &data, is_ogg); - if (status != FLAC__STREAM_DECODER_INIT_STATUS_OK) { - flac_data_deinit(&data); - FLAC__stream_decoder_delete(flac_dec); -#if defined(FLAC_API_VERSION_CURRENT) && FLAC_API_VERSION_CURRENT > 7 - g_warning("%s", FLAC__StreamDecoderInitStatusString[status]); -#endif - return; - } - - if (!flac_decoder_initialize(&data, flac_dec, 0)) { - flac_data_deinit(&data); - FLAC__stream_decoder_finish(flac_dec); - FLAC__stream_decoder_delete(flac_dec); - return; - } - - flac_decoder_loop(&data, flac_dec, 0, 0); - - flac_data_deinit(&data); - - FLAC__stream_decoder_finish(flac_dec); - FLAC__stream_decoder_delete(flac_dec); -} - -static void -flac_decode(struct decoder * decoder, struct input_stream *input_stream) -{ - flac_decode_internal(decoder, input_stream, false); -} - -#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 bool -oggflac_scan_file(const char *file, - const struct tag_handler *handler, void *handler_ctx) -{ - FLAC__Metadata_Iterator *it; - FLAC__StreamMetadata *block; - FLAC__Metadata_Chain *chain = FLAC__metadata_chain_new(); - - if (!(FLAC__metadata_chain_read_ogg(chain, file))) { - FLAC__metadata_chain_delete(chain); - return false; - } - - it = FLAC__metadata_iterator_new(); - FLAC__metadata_iterator_init(it, chain); - - do { - if (!(block = FLAC__metadata_iterator_get_block(it))) - break; - - flac_scan_metadata(NULL, block, - handler, handler_ctx); - } while (FLAC__metadata_iterator_next(it)); - FLAC__metadata_iterator_delete(it); - - FLAC__metadata_chain_delete(chain); - return true; -} - -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_lock_seek(input_stream, 0, SEEK_SET, NULL); - - flac_decode_internal(decoder, input_stream, true); -} - -static const char *const oggflac_suffixes[] = { "ogg", "oga", NULL }; -static const char *const oggflac_mime_types[] = { - "application/ogg", - "application/x-ogg", - "audio/ogg", - "audio/x-flac+ogg", - "audio/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, - .scan_file = oggflac_scan_file, - .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[] = { - "application/flac", - "application/x-flac", - "audio/flac", - "audio/x-flac", - NULL -}; - -const struct decoder_plugin flac_decoder_plugin = { - .name = "flac", - .stream_decode = flac_decode, - .scan_file = flac_scan_file, - .suffixes = flac_suffixes, - .mime_types = flac_mime_types, -}; 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