RepoMirrors
/
mpv
mirror of https://github.com/mpv-player/mpv
1
0
Fork 0
Code Issues Releases Wiki Activity
mpv/demux/packet.h

42 lines
1.3 KiB
C
Raw Normal View History

core, demux, vd_ffmpeg: pass side data from demux_lavf to vd_ffmpeg Pass the libavformat packet side_data field from demux_lavf to vd_ffmpeg. Libavcodec/libavformat use this field for palette data, and passing it is required for the playback of some paletted video codecs. The implementation works by giving vd_ffmpeg a copy of the struct demux_packet used to store the video packet (from which it can access the avpacket field). The definition of struct demux_packet is moved to new file demux_packet.h so that vd_ffmpeg.c can use it without including all of demuxer.h.
2011-08-20 17:25:43 +00:00
/*
* This file is part of mplayer2.
*
* mplayer2 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.
*
* mplayer2 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 mplayer2; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#ifndef MPLAYER_DEMUX_PACKET_H
#define MPLAYER_DEMUX_PACKET_H
demux, vd_ffmpeg: fix demux keyframe flag, set AV_PKT_FLAG_KEY There was some confusion about the "flags" field in demuxer packets. Demuxers set it to either 1 or 0x10 to indicate a keyframe (and the field was not used to indicate anything else). This didn't cause visible problems because nothing read the value. Replace the "flags" field with a boolean "keyframe" field. Set AV_PKT_FLAG_KEY based on this field in packets fed to libavcodec video decoders (looks like PNG and ZeroCodec are the only ones which depend on values from demuxer; previously this was hardcoded to true for PNG). Make demux_mf set the keyframe field in every packet. This matters for PNG files now that the demuxer flag is forwarded to libavcodec. Fix logic setting the field in demux_mkv. It had probably not been updated when adding SimpleBlock support. This probably makes no difference for any current practical use.
2012-07-24 21:23:27 +00:00
#include <stdbool.h>
demux: rename demux_packet.h to packet.h This always bothered me.
2013-11-18 17:46:44 +00:00
#include <inttypes.h>
core, demux, vd_ffmpeg: pass side data from demux_lavf to vd_ffmpeg Pass the libavformat packet side_data field from demux_lavf to vd_ffmpeg. Libavcodec/libavformat use this field for palette data, and passing it is required for the playback of some paletted video codecs. The implementation works by giving vd_ffmpeg a copy of the struct demux_packet used to store the video packet (from which it can access the avpacket field). The definition of struct demux_packet is moved to new file demux_packet.h so that vd_ffmpeg.c can use it without including all of demuxer.h.
2011-08-20 17:25:43 +00:00
// Holds one packet/frame/whatever
typedef struct demux_packet {
int len;
double pts;
demux: export dts from demux_lavf, use it for avi Having the DTS directly can be useful for restoring PTS values. The avi file format doesn't actually store PTS values, just DTS. An older hack explicitly exported the DTS as PTS (ignoring the [I assume] genpts generated non-sense PTS), which is not necessary anymore due to this change.
2013-11-25 22:13:01 +00:00
double dts;
core, demux, vd_ffmpeg: pass side data from demux_lavf to vd_ffmpeg Pass the libavformat packet side_data field from demux_lavf to vd_ffmpeg. Libavcodec/libavformat use this field for palette data, and passing it is required for the playback of some paletted video codecs. The implementation works by giving vd_ffmpeg a copy of the struct demux_packet used to store the video packet (from which it can access the avpacket field). The definition of struct demux_packet is moved to new file demux_packet.h so that vd_ffmpeg.c can use it without including all of demuxer.h.
2011-08-20 17:25:43 +00:00
double duration;
double stream_pts;
demux: simplify handling of filepos field demuxer->filepos contains the byte offset of the last read packet. This is so that the player can estimate the current playback position, if no proper timestamps are available. Simplify it to use demux_packet->pos in the generic demuxer code, instead of bothering every demuxer implementation about it. (Note that this is still a bit incorrect: it relfects the position of the last packet read by the demuxer, not that returned to the user. But that was already broken, and is not that trivial to fix.)
2013-11-16 20:04:28 +00:00
int64_t pos; // position in source file byte stream
core, demux, vd_ffmpeg: pass side data from demux_lavf to vd_ffmpeg Pass the libavformat packet side_data field from demux_lavf to vd_ffmpeg. Libavcodec/libavformat use this field for palette data, and passing it is required for the playback of some paletted video codecs. The implementation works by giving vd_ffmpeg a copy of the struct demux_packet used to store the video packet (from which it can access the avpacket field). The definition of struct demux_packet is moved to new file demux_packet.h so that vd_ffmpeg.c can use it without including all of demuxer.h.
2011-08-20 17:25:43 +00:00
unsigned char *buffer;
demux, vd_ffmpeg: fix demux keyframe flag, set AV_PKT_FLAG_KEY There was some confusion about the "flags" field in demuxer packets. Demuxers set it to either 1 or 0x10 to indicate a keyframe (and the field was not used to indicate anything else). This didn't cause visible problems because nothing read the value. Replace the "flags" field with a boolean "keyframe" field. Set AV_PKT_FLAG_KEY based on this field in packets fed to libavcodec video decoders (looks like PNG and ZeroCodec are the only ones which depend on values from demuxer; previously this was hardcoded to true for PNG). Make demux_mf set the keyframe field in every packet. This matters for PNG files now that the demuxer flag is forwarded to libavcodec. Fix logic setting the field in demux_mkv. It had probably not been updated when adding SimpleBlock support. This probably makes no difference for any current practical use.
2012-07-24 21:23:27 +00:00
bool keyframe;
demux_packet: add source stream index Might be helpful later.
2013-11-16 20:28:59 +00:00
int stream; // source stream index
core, demux, vd_ffmpeg: pass side data from demux_lavf to vd_ffmpeg Pass the libavformat packet side_data field from demux_lavf to vd_ffmpeg. Libavcodec/libavformat use this field for palette data, and passing it is required for the playback of some paletted video codecs. The implementation works by giving vd_ffmpeg a copy of the struct demux_packet used to store the video packet (from which it can access the avpacket field). The definition of struct demux_packet is moved to new file demux_packet.h so that vd_ffmpeg.c can use it without including all of demuxer.h.
2011-08-20 17:25:43 +00:00
struct demux_packet *next;
demux: workaround for -demuxer mpegts -correct-pts Using -demuxer mpegts -correct-pts triggered the assertion in ds_get_packet2(). This is not surprising, because the correct-pts code was changed to accept _complete_ packets, while all the old demuxers (including the mpegts demuxer) require you to use "partial" packet reads, together with the video_read_frame(). (That function actually parses video frames, so fragments of the original "packets" can be fed to the decoder.) However, it returns out demux_ts packet's are mostly useable. demux_ts still adds an offset (i.e. ds->buffer_pos != 0) to the packets when calling internal parser functions, such as in parse_es.c. While this is unclean design due to mplayer's old video demuxing/decoding path, it can be easily be made work by modifying the packet as returned by ds_get_packet2(). We also have to change the packet freeing code, as demux_packet->buffer doesn't have to point to the start of the memory allocation anymore. MPlayer handles this "correctly" because it doesn't have a function that reads a complete packet.
2013-05-21 20:03:35 +00:00
void *allocation;
core, demux, vd_ffmpeg: pass side data from demux_lavf to vd_ffmpeg Pass the libavformat packet side_data field from demux_lavf to vd_ffmpeg. Libavcodec/libavformat use this field for palette data, and passing it is required for the playback of some paletted video codecs. The implementation works by giving vd_ffmpeg a copy of the struct demux_packet used to store the video packet (from which it can access the avpacket field). The definition of struct demux_packet is moved to new file demux_packet.h so that vd_ffmpeg.c can use it without including all of demuxer.h.
2011-08-20 17:25:43 +00:00
struct AVPacket *avpacket; // original libavformat packet (demux_lavf)
} demux_packet_t;
#endif /* MPLAYER_DEMUX_PACKET_H */