2010-01-30 16:57:40 +00:00
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/*
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* This file is part of MPlayer.
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*
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* MPlayer is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* MPlayer is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with MPlayer; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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2008-02-22 09:09:46 +00:00
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#ifndef MPLAYER_DEC_AUDIO_H
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#define MPLAYER_DEC_AUDIO_H
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2001-10-30 17:04:59 +00:00
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2013-04-05 21:06:22 +00:00
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#include "audio/chmap.h"
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2013-11-23 20:25:05 +00:00
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#include "audio/audio.h"
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2012-11-09 00:06:43 +00:00
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#include "demux/stheader.h"
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2008-03-06 08:34:50 +00:00
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2013-11-10 22:38:18 +00:00
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struct mp_audio_buffer;
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core: redo how codecs are mapped, remove codecs.conf
Use codec names instead of FourCCs to identify codecs. Rewrite how
codecs are selected and initialized. Now each decoder exports a list
of decoders (and the codec it supports) via add_decoders(). The order
matters, and the first decoder for a given decoder is preferred over
the other decoders. E.g. all ad_mpg123 decoders are preferred over
ad_lavc, because it comes first in the mpcodecs_ad_drivers array.
Likewise, decoders within ad_lavc that are enumerated first by
libavcodec (using av_codec_next()) are preferred. (This is actually
critical to select h264 software decoding by default instead of vdpau.
libavcodec and ffmpeg/avconv use the same method to select decoders by
default, so we hope this is sane.)
The codec names follow libavcodec's codec names as defined by
AVCodecDescriptor.name (see libavcodec/codec_desc.c). Some decoders
have names different from the canonical codec name. The AVCodecDescriptor
API is relatively new, so we need a compatibility layer for older
libavcodec versions for codec names that are referenced internally,
and which are different from the decoder name. (Add a configure check
for that, because checking versions is getting way too messy.)
demux/codec_tags.c is generated from the former codecs.conf (minus
"special" decoders like vdpau, and excluding the mappings that are the
same as the mappings libavformat's exported RIFF tables). It contains
all the mappings from FourCCs to codec name. This is needed for
demux_mkv, demux_mpg, demux_avi and demux_asf. demux_lavf will set the
codec as determined by libavformat, while the other demuxers have to do
this on their own, using the mp_set_audio/video_codec_from_tag()
functions. Note that the sh_audio/video->format members don't uniquely
identify the codec anymore, and sh->codec takes over this role.
Replace the --ac/--vc/--afm/--vfm with new --vd/--ad options, which
provide cover the functionality of the removed switched.
Note: there's no CODECS_FLAG_FLIP flag anymore. This means some obscure
container/video combinations (e.g. the sample Film_200_zygo_pro.mov)
are played flipped. ffplay/avplay doesn't handle this properly either,
so we don't care and blame ffmeg/libav instead.
2013-02-09 14:15:19 +00:00
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struct mp_decoder_list;
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2011-07-02 06:22:32 +00:00
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2013-11-23 20:22:17 +00:00
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struct dec_audio {
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2013-12-21 17:23:59 +00:00
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struct mp_log *log;
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2013-11-23 20:22:17 +00:00
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struct MPOpts *opts;
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2013-12-21 17:23:59 +00:00
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struct mpv_global *global;
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2013-11-23 20:22:17 +00:00
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const struct ad_functions *ad_driver;
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struct sh_stream *header;
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struct mp_audio_buffer *decode_buffer;
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struct af_stream *afilter;
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char *decoder_desc;
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// set by decoder
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2013-11-23 20:25:05 +00:00
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struct mp_audio decoded; // format of decoded audio (no data, temporarily
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// different from decode_buffer during format
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// changes)
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int i_bps; // input bitrate, can change with VBR sources
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2013-11-23 20:22:17 +00:00
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// last known pts value in output from decoder
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double pts;
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// number of samples output by decoder after last known pts
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int pts_offset;
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2013-11-23 20:26:04 +00:00
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// For free use by the ad_driver
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2013-11-23 20:22:17 +00:00
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void *priv;
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};
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struct mp_decoder_list *audio_decoder_list(void);
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int audio_init_best_codec(struct dec_audio *d_audio, char *audio_decoders);
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int audio_decode(struct dec_audio *d_audio, struct mp_audio_buffer *outbuf,
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2013-11-10 22:38:18 +00:00
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int minsamples);
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2013-11-27 19:54:07 +00:00
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void audio_reset_decoding(struct dec_audio *d_audio);
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2013-11-23 20:22:17 +00:00
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void audio_uninit(struct dec_audio *d_audio);
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2002-10-05 22:55:45 +00:00
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2013-11-23 20:22:17 +00:00
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int audio_init_filters(struct dec_audio *d_audio, int in_samplerate,
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2013-04-05 21:06:22 +00:00
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int *out_samplerate, struct mp_chmap *out_channels,
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int *out_format);
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2008-01-01 21:35:58 +00:00
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2008-02-22 09:09:46 +00:00
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#endif /* MPLAYER_DEC_AUDIO_H */
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