From 015e1ab183a248ce07f11775bc622c1018f365e9 Mon Sep 17 00:00:00 2001 From: Max Kellermann Date: Tue, 4 Sep 2012 11:28:36 +0200 Subject: decoder/_ogg_common: rename to ogg_common.c --- src/decoder/_flac_common.c | 229 ------------------------------------ src/decoder/_flac_common.h | 103 ---------------- src/decoder/_ogg_common.c | 46 -------- src/decoder/_ogg_common.h | 33 ------ src/decoder/flac_common.c | 229 ++++++++++++++++++++++++++++++++++++ src/decoder/flac_common.h | 103 ++++++++++++++++ src/decoder/flac_decoder_plugin.c | 4 +- src/decoder/ogg_common.c | 46 ++++++++ src/decoder/ogg_common.h | 33 ++++++ src/decoder/vorbis_decoder_plugin.c | 2 +- 10 files changed, 414 insertions(+), 414 deletions(-) delete mode 100644 src/decoder/_flac_common.c delete mode 100644 src/decoder/_flac_common.h delete mode 100644 src/decoder/_ogg_common.c delete mode 100644 src/decoder/_ogg_common.h create mode 100644 src/decoder/flac_common.c create mode 100644 src/decoder/flac_common.h create mode 100644 src/decoder/ogg_common.c create mode 100644 src/decoder/ogg_common.h (limited to 'src/decoder') diff --git a/src/decoder/_flac_common.c b/src/decoder/_flac_common.c deleted file mode 100644 index bab3995f0..000000000 --- a/src/decoder/_flac_common.c +++ /dev/null @@ -1,229 +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. - */ - -/* - * Common data structures and functions used by FLAC and OggFLAC - */ - -#include "config.h" -#include "_flac_common.h" -#include "flac_metadata.h" -#include "flac_pcm.h" -#include "audio_check.h" - -#include - -#include - -void -flac_data_init(struct flac_data *data, struct decoder * decoder, - struct input_stream *input_stream) -{ - pcm_buffer_init(&data->buffer); - - data->unsupported = false; - data->initialized = false; - data->total_frames = 0; - data->first_frame = 0; - data->next_frame = 0; - - data->position = 0; - data->decoder = decoder; - data->input_stream = input_stream; - data->tag = NULL; -} - -void -flac_data_deinit(struct flac_data *data) -{ - pcm_buffer_deinit(&data->buffer); - - if (data->tag != NULL) - tag_free(data->tag); -} - -static enum sample_format -flac_sample_format(unsigned bits_per_sample) -{ - switch (bits_per_sample) { - case 8: - return SAMPLE_FORMAT_S8; - - case 16: - return SAMPLE_FORMAT_S16; - - case 24: - return SAMPLE_FORMAT_S24_P32; - - case 32: - return SAMPLE_FORMAT_S32; - - default: - return SAMPLE_FORMAT_UNDEFINED; - } -} - -static void -flac_got_stream_info(struct flac_data *data, - const FLAC__StreamMetadata_StreamInfo *stream_info) -{ - if (data->initialized || data->unsupported) - return; - - GError *error = NULL; - if (!audio_format_init_checked(&data->audio_format, - stream_info->sample_rate, - flac_sample_format(stream_info->bits_per_sample), - stream_info->channels, &error)) { - g_warning("%s", error->message); - g_error_free(error); - data->unsupported = true; - return; - } - - data->frame_size = audio_format_frame_size(&data->audio_format); - - if (data->total_frames == 0) - data->total_frames = stream_info->total_samples; - - data->initialized = true; -} - -void flac_metadata_common_cb(const FLAC__StreamMetadata * block, - struct flac_data *data) -{ - if (data->unsupported) - return; - - struct replay_gain_info rgi; - char *mixramp_start; - char *mixramp_end; - float replay_gain_db = 0; - - switch (block->type) { - case FLAC__METADATA_TYPE_STREAMINFO: - flac_got_stream_info(data, &block->data.stream_info); - break; - - case FLAC__METADATA_TYPE_VORBIS_COMMENT: - if (flac_parse_replay_gain(&rgi, block)) - replay_gain_db = decoder_replay_gain(data->decoder, &rgi); - if (flac_parse_mixramp(&mixramp_start, &mixramp_end, block)) { - g_debug("setting mixramp_tags"); - decoder_mixramp(data->decoder, replay_gain_db, - mixramp_start, mixramp_end); - } - - if (data->tag != NULL) - flac_vorbis_comments_to_tag(data->tag, NULL, - &block->data.vorbis_comment); - - default: - break; - } -} - -void flac_error_common_cb(const FLAC__StreamDecoderErrorStatus status, - struct flac_data *data) -{ - if (decoder_get_command(data->decoder) == DECODE_COMMAND_STOP) - return; - - g_warning("%s", FLAC__StreamDecoderErrorStatusString[status]); -} - -/** - * This function attempts to call decoder_initialized() in case there - * was no STREAMINFO block. This is allowed for nonseekable streams, - * where the server sends us only a part of the file, without - * providing the STREAMINFO block from the beginning of the file - * (e.g. when seeking with SqueezeBox Server). - */ -static bool -flac_got_first_frame(struct flac_data *data, const FLAC__FrameHeader *header) -{ - if (data->unsupported) - return false; - - GError *error = NULL; - if (!audio_format_init_checked(&data->audio_format, - header->sample_rate, - flac_sample_format(header->bits_per_sample), - header->channels, &error)) { - g_warning("%s", error->message); - g_error_free(error); - data->unsupported = true; - return false; - } - - data->frame_size = audio_format_frame_size(&data->audio_format); - - decoder_initialized(data->decoder, &data->audio_format, - data->input_stream->seekable, - (float)data->total_frames / - (float)data->audio_format.sample_rate); - - data->initialized = true; - - return true; -} - -FLAC__StreamDecoderWriteStatus -flac_common_write(struct flac_data *data, const FLAC__Frame * frame, - const FLAC__int32 *const buf[], - FLAC__uint64 nbytes) -{ - enum decoder_command cmd; - void *buffer; - unsigned bit_rate; - - if (!data->initialized && !flac_got_first_frame(data, &frame->header)) - return FLAC__STREAM_DECODER_WRITE_STATUS_ABORT; - - size_t buffer_size = frame->header.blocksize * data->frame_size; - buffer = pcm_buffer_get(&data->buffer, buffer_size); - - flac_convert(buffer, frame->header.channels, - data->audio_format.format, buf, - 0, frame->header.blocksize); - - if (nbytes > 0) - bit_rate = nbytes * 8 * frame->header.sample_rate / - (1000 * frame->header.blocksize); - else - bit_rate = 0; - - cmd = decoder_data(data->decoder, data->input_stream, - buffer, buffer_size, - bit_rate); - data->next_frame += frame->header.blocksize; - switch (cmd) { - case DECODE_COMMAND_NONE: - case DECODE_COMMAND_START: - break; - - case DECODE_COMMAND_STOP: - return FLAC__STREAM_DECODER_WRITE_STATUS_ABORT; - - case DECODE_COMMAND_SEEK: - return FLAC__STREAM_DECODER_WRITE_STATUS_CONTINUE; - } - - return FLAC__STREAM_DECODER_WRITE_STATUS_CONTINUE; -} diff --git a/src/decoder/_flac_common.h b/src/decoder/_flac_common.h deleted file mode 100644 index c898a47cf..000000000 --- a/src/decoder/_flac_common.h +++ /dev/null @@ -1,103 +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. - */ - -/* - * Common data structures and functions used by FLAC and OggFLAC - */ - -#ifndef MPD_FLAC_COMMON_H -#define MPD_FLAC_COMMON_H - -#include "decoder_api.h" -#include "pcm_buffer.h" - -#include -#include - -#undef G_LOG_DOMAIN -#define G_LOG_DOMAIN "flac" - -struct flac_data { - struct pcm_buffer buffer; - - /** - * The size of one frame in the output buffer. - */ - unsigned frame_size; - - /** - * Has decoder_initialized() been called yet? - */ - bool initialized; - - /** - * Does the FLAC file contain an unsupported audio format? - */ - bool unsupported; - - /** - * The validated audio format of the FLAC file. This - * attribute is defined if "initialized" is true. - */ - struct audio_format audio_format; - - /** - * The total number of frames in this song. The decoder - * plugin may initialize this attribute to override the value - * provided by libFLAC (e.g. for sub songs from a CUE sheet). - */ - FLAC__uint64 total_frames; - - /** - * The number of the first frame in this song. This is only - * non-zero if playing sub songs from a CUE sheet. - */ - FLAC__uint64 first_frame; - - /** - * The number of the next frame which is going to be decoded. - */ - FLAC__uint64 next_frame; - - FLAC__uint64 position; - struct decoder *decoder; - struct input_stream *input_stream; - struct tag *tag; -}; - -/* initializes a given FlacData struct */ -void -flac_data_init(struct flac_data *data, struct decoder * decoder, - struct input_stream *input_stream); - -void -flac_data_deinit(struct flac_data *data); - -void flac_metadata_common_cb(const FLAC__StreamMetadata * block, - struct flac_data *data); - -void flac_error_common_cb(FLAC__StreamDecoderErrorStatus status, - struct flac_data *data); - -FLAC__StreamDecoderWriteStatus -flac_common_write(struct flac_data *data, const FLAC__Frame * frame, - const FLAC__int32 *const buf[], - FLAC__uint64 nbytes); - -#endif /* _FLAC_COMMON_H */ diff --git a/src/decoder/_ogg_common.c b/src/decoder/_ogg_common.c deleted file mode 100644 index 09d2712da..000000000 --- a/src/decoder/_ogg_common.c +++ /dev/null @@ -1,46 +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. - */ - -/* - * Common functions used for Ogg data streams (Ogg-Vorbis and OggFLAC) - */ - -#include "config.h" -#include "_ogg_common.h" - -ogg_stream_type ogg_stream_type_detect(struct input_stream *inStream) -{ - /* oggflac detection based on code in ogg123 and this post - * http://lists.xiph.org/pipermail/flac/2004-December/000393.html - * ogg123 trunk still doesn't have this patch as of June 2005 */ - unsigned char buf[41]; - size_t r; - - r = decoder_read(NULL, inStream, buf, sizeof(buf)); - if (r < sizeof(buf) || memcmp(buf, "OggS", 4) != 0) - return VORBIS; - - if ((memcmp(buf + 29, "FLAC", 4) == 0 && - memcmp(buf + 37, "fLaC", 4) == 0) || - memcmp(buf + 28, "FLAC", 4) == 0 || - memcmp(buf + 28, "fLaC", 4) == 0) - return FLAC; - - return VORBIS; -} diff --git a/src/decoder/_ogg_common.h b/src/decoder/_ogg_common.h deleted file mode 100644 index 85e4ebba6..000000000 --- a/src/decoder/_ogg_common.h +++ /dev/null @@ -1,33 +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. - */ - -/* - * Common functions used for Ogg data streams (Ogg-Vorbis and OggFLAC) - */ - -#ifndef MPD_OGG_COMMON_H -#define MPD_OGG_COMMON_H - -#include "decoder_api.h" - -typedef enum _ogg_stream_type { VORBIS, FLAC } ogg_stream_type; - -ogg_stream_type ogg_stream_type_detect(struct input_stream *inStream); - -#endif /* _OGG_COMMON_H */ diff --git a/src/decoder/flac_common.c b/src/decoder/flac_common.c new file mode 100644 index 000000000..510d16d59 --- /dev/null +++ b/src/decoder/flac_common.c @@ -0,0 +1,229 @@ +/* + * 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. + */ + +/* + * Common data structures and functions used by FLAC and OggFLAC + */ + +#include "config.h" +#include "flac_common.h" +#include "flac_metadata.h" +#include "flac_pcm.h" +#include "audio_check.h" + +#include + +#include + +void +flac_data_init(struct flac_data *data, struct decoder * decoder, + struct input_stream *input_stream) +{ + pcm_buffer_init(&data->buffer); + + data->unsupported = false; + data->initialized = false; + data->total_frames = 0; + data->first_frame = 0; + data->next_frame = 0; + + data->position = 0; + data->decoder = decoder; + data->input_stream = input_stream; + data->tag = NULL; +} + +void +flac_data_deinit(struct flac_data *data) +{ + pcm_buffer_deinit(&data->buffer); + + if (data->tag != NULL) + tag_free(data->tag); +} + +static enum sample_format +flac_sample_format(unsigned bits_per_sample) +{ + switch (bits_per_sample) { + case 8: + return SAMPLE_FORMAT_S8; + + case 16: + return SAMPLE_FORMAT_S16; + + case 24: + return SAMPLE_FORMAT_S24_P32; + + case 32: + return SAMPLE_FORMAT_S32; + + default: + return SAMPLE_FORMAT_UNDEFINED; + } +} + +static void +flac_got_stream_info(struct flac_data *data, + const FLAC__StreamMetadata_StreamInfo *stream_info) +{ + if (data->initialized || data->unsupported) + return; + + GError *error = NULL; + if (!audio_format_init_checked(&data->audio_format, + stream_info->sample_rate, + flac_sample_format(stream_info->bits_per_sample), + stream_info->channels, &error)) { + g_warning("%s", error->message); + g_error_free(error); + data->unsupported = true; + return; + } + + data->frame_size = audio_format_frame_size(&data->audio_format); + + if (data->total_frames == 0) + data->total_frames = stream_info->total_samples; + + data->initialized = true; +} + +void flac_metadata_common_cb(const FLAC__StreamMetadata * block, + struct flac_data *data) +{ + if (data->unsupported) + return; + + struct replay_gain_info rgi; + char *mixramp_start; + char *mixramp_end; + float replay_gain_db = 0; + + switch (block->type) { + case FLAC__METADATA_TYPE_STREAMINFO: + flac_got_stream_info(data, &block->data.stream_info); + break; + + case FLAC__METADATA_TYPE_VORBIS_COMMENT: + if (flac_parse_replay_gain(&rgi, block)) + replay_gain_db = decoder_replay_gain(data->decoder, &rgi); + if (flac_parse_mixramp(&mixramp_start, &mixramp_end, block)) { + g_debug("setting mixramp_tags"); + decoder_mixramp(data->decoder, replay_gain_db, + mixramp_start, mixramp_end); + } + + if (data->tag != NULL) + flac_vorbis_comments_to_tag(data->tag, NULL, + &block->data.vorbis_comment); + + default: + break; + } +} + +void flac_error_common_cb(const FLAC__StreamDecoderErrorStatus status, + struct flac_data *data) +{ + if (decoder_get_command(data->decoder) == DECODE_COMMAND_STOP) + return; + + g_warning("%s", FLAC__StreamDecoderErrorStatusString[status]); +} + +/** + * This function attempts to call decoder_initialized() in case there + * was no STREAMINFO block. This is allowed for nonseekable streams, + * where the server sends us only a part of the file, without + * providing the STREAMINFO block from the beginning of the file + * (e.g. when seeking with SqueezeBox Server). + */ +static bool +flac_got_first_frame(struct flac_data *data, const FLAC__FrameHeader *header) +{ + if (data->unsupported) + return false; + + GError *error = NULL; + if (!audio_format_init_checked(&data->audio_format, + header->sample_rate, + flac_sample_format(header->bits_per_sample), + header->channels, &error)) { + g_warning("%s", error->message); + g_error_free(error); + data->unsupported = true; + return false; + } + + data->frame_size = audio_format_frame_size(&data->audio_format); + + decoder_initialized(data->decoder, &data->audio_format, + data->input_stream->seekable, + (float)data->total_frames / + (float)data->audio_format.sample_rate); + + data->initialized = true; + + return true; +} + +FLAC__StreamDecoderWriteStatus +flac_common_write(struct flac_data *data, const FLAC__Frame * frame, + const FLAC__int32 *const buf[], + FLAC__uint64 nbytes) +{ + enum decoder_command cmd; + void *buffer; + unsigned bit_rate; + + if (!data->initialized && !flac_got_first_frame(data, &frame->header)) + return FLAC__STREAM_DECODER_WRITE_STATUS_ABORT; + + size_t buffer_size = frame->header.blocksize * data->frame_size; + buffer = pcm_buffer_get(&data->buffer, buffer_size); + + flac_convert(buffer, frame->header.channels, + data->audio_format.format, buf, + 0, frame->header.blocksize); + + if (nbytes > 0) + bit_rate = nbytes * 8 * frame->header.sample_rate / + (1000 * frame->header.blocksize); + else + bit_rate = 0; + + cmd = decoder_data(data->decoder, data->input_stream, + buffer, buffer_size, + bit_rate); + data->next_frame += frame->header.blocksize; + switch (cmd) { + case DECODE_COMMAND_NONE: + case DECODE_COMMAND_START: + break; + + case DECODE_COMMAND_STOP: + return FLAC__STREAM_DECODER_WRITE_STATUS_ABORT; + + case DECODE_COMMAND_SEEK: + return FLAC__STREAM_DECODER_WRITE_STATUS_CONTINUE; + } + + return FLAC__STREAM_DECODER_WRITE_STATUS_CONTINUE; +} diff --git a/src/decoder/flac_common.h b/src/decoder/flac_common.h new file mode 100644 index 000000000..c898a47cf --- /dev/null +++ b/src/decoder/flac_common.h @@ -0,0 +1,103 @@ +/* + * 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. + */ + +/* + * Common data structures and functions used by FLAC and OggFLAC + */ + +#ifndef MPD_FLAC_COMMON_H +#define MPD_FLAC_COMMON_H + +#include "decoder_api.h" +#include "pcm_buffer.h" + +#include +#include + +#undef G_LOG_DOMAIN +#define G_LOG_DOMAIN "flac" + +struct flac_data { + struct pcm_buffer buffer; + + /** + * The size of one frame in the output buffer. + */ + unsigned frame_size; + + /** + * Has decoder_initialized() been called yet? + */ + bool initialized; + + /** + * Does the FLAC file contain an unsupported audio format? + */ + bool unsupported; + + /** + * The validated audio format of the FLAC file. This + * attribute is defined if "initialized" is true. + */ + struct audio_format audio_format; + + /** + * The total number of frames in this song. The decoder + * plugin may initialize this attribute to override the value + * provided by libFLAC (e.g. for sub songs from a CUE sheet). + */ + FLAC__uint64 total_frames; + + /** + * The number of the first frame in this song. This is only + * non-zero if playing sub songs from a CUE sheet. + */ + FLAC__uint64 first_frame; + + /** + * The number of the next frame which is going to be decoded. + */ + FLAC__uint64 next_frame; + + FLAC__uint64 position; + struct decoder *decoder; + struct input_stream *input_stream; + struct tag *tag; +}; + +/* initializes a given FlacData struct */ +void +flac_data_init(struct flac_data *data, struct decoder * decoder, + struct input_stream *input_stream); + +void +flac_data_deinit(struct flac_data *data); + +void flac_metadata_common_cb(const FLAC__StreamMetadata * block, + struct flac_data *data); + +void flac_error_common_cb(FLAC__StreamDecoderErrorStatus status, + struct flac_data *data); + +FLAC__StreamDecoderWriteStatus +flac_common_write(struct flac_data *data, const FLAC__Frame * frame, + const FLAC__int32 *const buf[], + FLAC__uint64 nbytes); + +#endif /* _FLAC_COMMON_H */ diff --git a/src/decoder/flac_decoder_plugin.c b/src/decoder/flac_decoder_plugin.c index fb0b3502d..818f75904 100644 --- a/src/decoder/flac_decoder_plugin.c +++ b/src/decoder/flac_decoder_plugin.c @@ -18,12 +18,12 @@ */ #include "config.h" /* must be first for large file support */ -#include "_flac_common.h" +#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" +#include "ogg_common.h" #endif #include diff --git a/src/decoder/ogg_common.c b/src/decoder/ogg_common.c new file mode 100644 index 000000000..d57e247fa --- /dev/null +++ b/src/decoder/ogg_common.c @@ -0,0 +1,46 @@ +/* + * 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. + */ + +/* + * Common functions used for Ogg data streams (Ogg-Vorbis and OggFLAC) + */ + +#include "config.h" +#include "ogg_common.h" + +ogg_stream_type ogg_stream_type_detect(struct input_stream *inStream) +{ + /* oggflac detection based on code in ogg123 and this post + * http://lists.xiph.org/pipermail/flac/2004-December/000393.html + * ogg123 trunk still doesn't have this patch as of June 2005 */ + unsigned char buf[41]; + size_t r; + + r = decoder_read(NULL, inStream, buf, sizeof(buf)); + if (r < sizeof(buf) || memcmp(buf, "OggS", 4) != 0) + return VORBIS; + + if ((memcmp(buf + 29, "FLAC", 4) == 0 && + memcmp(buf + 37, "fLaC", 4) == 0) || + memcmp(buf + 28, "FLAC", 4) == 0 || + memcmp(buf + 28, "fLaC", 4) == 0) + return FLAC; + + return VORBIS; +} diff --git a/src/decoder/ogg_common.h b/src/decoder/ogg_common.h new file mode 100644 index 000000000..85e4ebba6 --- /dev/null +++ b/src/decoder/ogg_common.h @@ -0,0 +1,33 @@ +/* + * 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. + */ + +/* + * Common functions used for Ogg data streams (Ogg-Vorbis and OggFLAC) + */ + +#ifndef MPD_OGG_COMMON_H +#define MPD_OGG_COMMON_H + +#include "decoder_api.h" + +typedef enum _ogg_stream_type { VORBIS, FLAC } ogg_stream_type; + +ogg_stream_type ogg_stream_type_detect(struct input_stream *inStream); + +#endif /* _OGG_COMMON_H */ diff --git a/src/decoder/vorbis_decoder_plugin.c b/src/decoder/vorbis_decoder_plugin.c index 15cdc0ca9..40594faad 100644 --- a/src/decoder/vorbis_decoder_plugin.c +++ b/src/decoder/vorbis_decoder_plugin.c @@ -19,7 +19,7 @@ #include "config.h" #include "vorbis_comments.h" -#include "_ogg_common.h" +#include "ogg_common.h" #include "audio_check.h" #include "uri.h" #include "tag_handler.h" -- cgit v1.2.3