mpv/video/decode/dec_video.h

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/*
* This file is part of mpv.
*
* mpv 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.
*
* mpv 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 mpv. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef MPLAYER_DEC_VIDEO_H
#define MPLAYER_DEC_VIDEO_H
#include <stdbool.h>
#include "demux/stheader.h"
#include "video/hwdec.h"
#include "video/mp_image.h"
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
struct mp_decoder_list;
struct vo;
struct dec_video {
struct mp_log *log;
struct mpv_global *global;
struct MPOpts *opts;
const struct vd_functions *vd_driver;
struct mp_hwdec_info *hwdec_info; // video output hwdec handles
struct sh_stream *header;
char *decoder_desc;
float fps; // FPS from demuxer or from user override
int dropped_frames;
// Internal (shared with vd_lavc.c).
void *priv; // for free use by vd_driver
// Strictly internal (dec_video.c).
// Last PTS from decoder (set with each vd_driver->decode() call)
double codec_pts;
int num_codec_pts_problems;
// Last packet DTS from decoder (passed through from source packets)
double codec_dts;
int num_codec_dts_problems;
// PTS or DTS of packet first read
double first_packet_pdts;
// There was at least one packet with non-sense timestamps.
int has_broken_packet_pts; // <0: uninitialized, 0: no problems, 1: broken
// Final PTS of previously decoded image
double decoded_pts;
struct mp_image_params last_format, fixed_format;
float initial_decoder_aspect;
double start_pts;
bool framedrop_enabled;
struct mp_image *cover_art_mpi;
struct mp_image *current_mpi;
int current_state;
};
struct mp_decoder_list *video_decoder_list(void);
bool video_init_best_codec(struct dec_video *d_video);
void video_uninit(struct dec_video *d_video);
void video_work(struct dec_video *d_video);
int video_get_frame(struct dec_video *d_video, struct mp_image **out_mpi);
void video_set_framedrop(struct dec_video *d_video, bool enabled);
void video_set_start(struct dec_video *d_video, double start_pts);
int video_vd_control(struct dec_video *d_video, int cmd, void *arg);
void video_reset(struct dec_video *d_video);
void video_reset_aspect(struct dec_video *d_video);
#endif /* MPLAYER_DEC_VIDEO_H */