2009-05-08 21:51:13 +00:00
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/*
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2015-04-13 07:36:54 +00:00
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* This file is part of mpv.
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2009-05-08 21:51:13 +00:00
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*
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2015-04-13 07:36:54 +00:00
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* mpv is free software; you can redistribute it and/or modify
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2009-05-08 21:51:13 +00:00
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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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2015-04-13 07:36:54 +00:00
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* mpv is distributed in the hope that it will be useful,
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2009-05-08 21:51:13 +00:00
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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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2015-04-13 07:36:54 +00:00
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* with mpv. If not, see <http://www.gnu.org/licenses/>.
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2009-05-08 21:51:13 +00:00
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*/
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2008-02-22 09:09:46 +00:00
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#ifndef MPLAYER_STHEADER_H
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#define MPLAYER_STHEADER_H
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2002-03-03 18:47:29 +00:00
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2011-01-16 18:03:08 +00:00
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#include <stdbool.h>
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2013-12-17 01:39:45 +00:00
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#include "common/common.h"
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2013-04-06 20:43:12 +00:00
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#include "audio/chmap.h"
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2014-09-25 00:22:44 +00:00
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2008-04-16 01:23:38 +00:00
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struct MPOpts;
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2009-04-19 14:37:03 +00:00
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struct demuxer;
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2002-09-22 00:43:14 +00:00
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// Stream headers:
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2002-01-16 12:24:36 +00:00
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2012-08-03 10:24:55 +00:00
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struct sh_stream {
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enum stream_type type;
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// Index into demuxer->streams.
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int index;
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2013-04-29 20:34:36 +00:00
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// Demuxer/format specific ID. Corresponds to the stream IDs as encoded in
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// some file formats (e.g. MPEG), or an index chosen by demux.c.
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2012-08-03 10:24:55 +00:00
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int demuxer_id;
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2014-10-21 11:16:48 +00:00
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// FFmpeg stream index (AVFormatContext.streams[index]), or equivalent.
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int ff_index;
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2012-08-03 10:24:55 +00:00
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2016-01-12 22:48:19 +00:00
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struct mp_codec_params *codec;
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2012-10-28 23:06:51 +00:00
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2012-08-03 10:24:55 +00:00
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char *title;
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2013-02-09 14:15:28 +00:00
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char *lang; // language code
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2012-12-10 17:52:06 +00:00
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bool default_track; // container default track flag
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2015-06-27 20:02:24 +00:00
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bool forced_track; // container forced track flag
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2014-09-01 21:47:27 +00:00
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int hls_bitrate;
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core: completely change handling of attached picture pseudo video
Before this commit, we tried to play along with libavformat and tried
to pretend that attached pictures are video streams with a single
frame, and that the frame magically appeared at the seek position when
seeking. The playback core would then switch to a mode where the video
has ended, and the "remaining" audio is played.
This didn't work very well:
- we needed a hack in demux.c, because we tried to read more packets in
order to find the "next" video frame (libavformat doesn't tell us if
a stream has ended)
- switching the video stream didn't work, because we can't tell
libavformat to send the packet again
- seeking and resuming after was hacky (for some reason libavformat sets
the returned packet's PTS to that of the previously returned audio
packet in generic code not related to attached pictures, and this
happened to work)
- if the user did something stupid and e.g. inserted a deinterlacer by
default, a picture was never displayed, only an inactive VO window)
- same when using a command that reconfigured the VO (like switching
aspect or video filters)
- hr-seek didn't work
For this reason, handle attached pictures as separate case with a
separate video decoding function, which doesn't read packets. Also,
do not synchronize audio to video start in this case.
2013-07-11 17:23:56 +00:00
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2015-03-20 21:07:26 +00:00
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bool missing_timestamps;
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core: completely change handling of attached picture pseudo video
Before this commit, we tried to play along with libavformat and tried
to pretend that attached pictures are video streams with a single
frame, and that the frame magically appeared at the seek position when
seeking. The playback core would then switch to a mode where the video
has ended, and the "remaining" audio is played.
This didn't work very well:
- we needed a hack in demux.c, because we tried to read more packets in
order to find the "next" video frame (libavformat doesn't tell us if
a stream has ended)
- switching the video stream didn't work, because we can't tell
libavformat to send the packet again
- seeking and resuming after was hacky (for some reason libavformat sets
the returned packet's PTS to that of the previously returned audio
packet in generic code not related to attached pictures, and this
happened to work)
- if the user did something stupid and e.g. inserted a deinterlacer by
default, a picture was never displayed, only an inactive VO window)
- same when using a command that reconfigured the VO (like switching
aspect or video filters)
- hr-seek didn't work
For this reason, handle attached pictures as separate case with a
separate video decoding function, which doesn't read packets. Also,
do not synchronize audio to video start in this case.
2013-07-11 17:23:56 +00:00
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// stream is a picture (such as album art)
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struct demux_packet *attached_picture;
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2012-08-03 10:24:55 +00:00
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2013-07-11 17:20:25 +00:00
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// Internal to demux.c
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struct demux_stream *ds;
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2012-08-03 10:24:55 +00:00
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};
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2016-01-12 22:48:19 +00:00
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struct mp_codec_params {
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enum stream_type type;
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// E.g. "h264" (usually corresponds to AVCodecDescriptor.name)
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const char *codec;
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// Usually a FourCC, exact meaning depends on codec.
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unsigned int codec_tag;
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unsigned char *extradata; // codec specific per-stream header
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int extradata_size;
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// Codec specific header data (set by demux_lavf.c only)
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struct AVCodecContext *lav_headers;
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// STREAM_AUDIO
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2011-07-03 07:30:50 +00:00
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int samplerate;
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2013-04-06 20:43:12 +00:00
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struct mp_chmap channels;
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2014-09-24 20:55:50 +00:00
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bool force_channels;
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2014-05-26 22:15:41 +00:00
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int bitrate; // compressed bits/sec
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2014-09-24 23:56:51 +00:00
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int block_align;
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2014-07-05 14:45:41 +00:00
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struct replaygain_data *replaygain_data;
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2001-04-06 01:18:59 +00:00
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2016-01-12 22:48:19 +00:00
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// STREAM_VIDEO
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video: add insane hack to work around FFmpeg/Libav insanity
So, FFmpeg/Libav requires us to figure out video timestamps ourselves
(see last 10 commits or so), but the methods it provides for this aren't
even sufficient. In particular, everything that uses AVI-style DTS (avi,
vfw-muxed mkv, possibly mpeg4-in-ogm) with a codec that has an internal
frame delay is broken. In this case, libavcodec will shift the packet-
to-image correspondence by the codec delay, meaning that with a delay=1,
the first AVFrame.pkt_dts is not 0, but that of the second packet. All
timestamps will appear shifted. The start time (e.g. the time displayed
when doing "mpv file.avi --pause") will not be exactly 0.
(According to Libav developers, this is how it's supposed to work; just
that the first DTS values are normally negative with formats that use
DTS "properly". Who cares if it doesn't work at all with very common
video formats? There's no indication that they'll fix this soon,
either. An elegant workaround is missing too.)
Add a hack to re-enable the old PTS code for AVI and vfw-muxed MKV.
Since these timestamps are not reorderd, we wouldn't need to sort them,
but it's less code this way (and possibly more robust, should a demuxer
unexpectedly output PTS).
The original intention of all the timestamp changes recently was
actually to get rid of demuxer-specific hacks and the old timestamp
sorting code, but it looks like this didn't work out. Yet another case
where trying to replace native MPlayer functionality with FFmpeg/Libav
led to disadvantages and bugs. (Note that the old PTS sorting code
doesn't and can't handle frame dropping correctly, though.)
Bug reports:
https://trac.ffmpeg.org/ticket/3178
https://bugzilla.libav.org/show_bug.cgi?id=600
2013-11-28 14:10:45 +00:00
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bool avi_dts; // use DTS timing; first frame and DTS is 0
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2011-07-03 07:30:50 +00:00
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float fps; // frames per second (set only if constant fps)
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2015-12-19 19:04:31 +00:00
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int par_w, par_h; // pixel aspect ratio (0 if unknown/square)
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2013-11-23 20:36:20 +00:00
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int disp_w, disp_h; // display size
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2014-04-20 19:29:22 +00:00
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int rotate; // intended display rotation, in degrees, [0, 359]
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2014-08-30 21:24:46 +00:00
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int stereo_mode; // mp_stereo3d_mode (0 if none/unknown)
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2001-04-06 01:18:59 +00:00
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2016-01-12 22:48:19 +00:00
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// STREAM_VIDEO + STREAM_AUDIO
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int bits_per_coded_sample;
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// STREAM_SUB
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double frame_based; // timestamps are frame-based (and this is the
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// fallback framerate used for timestamps)
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};
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2006-11-13 18:38:29 +00:00
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2008-02-22 09:09:46 +00:00
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#endif /* MPLAYER_STHEADER_H */
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