mpv/video/decode/dec_video.h

99 lines
3.1 KiB
C
Raw Normal View History

/*
* 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;
struct vf_chain *vfilter; // video filter chain
struct vo *vo; // (still) needed by video_set/get_colors
const struct vd_functions *vd_driver;
struct mp_hwdec_info *hwdec_info; // video output hwdec handles
struct sh_stream *header;
char *decoder_desc;
// Used temporarily during decoding (important for format changes)
struct mp_image *waiting_decoded_mpi;
struct mp_image_params decoder_output; // last output of the decoder
struct mp_image *cover_art_mpi;
void *priv; // for free use by vd_driver
// 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 sorting (needed for AVI-style timestamps)
double buffered_pts[64];
int num_buffered_pts;
// 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;
float fps; // FPS from demuxer or from user override
float initial_decoder_aspect;
// State used only by player/video.c
double last_pts;
};
struct mp_decoder_list *video_decoder_list(void);
bool video_init_best_codec(struct dec_video *d_video, char* video_decoders);
void video_uninit(struct dec_video *d_video);
struct demux_packet;
struct mp_image *video_decode(struct dec_video *d_video,
struct demux_packet *packet,
int drop_frame);
int video_get_colors(struct dec_video *d_video, const char *item, int *value);
int video_set_colors(struct dec_video *d_video, const char *item, int value);
void video_reset_decoding(struct dec_video *d_video);
int video_vd_control(struct dec_video *d_video, int cmd, void *arg);
int video_reconfig_filters(struct dec_video *d_video,
const struct mp_image_params *params);
int video_vf_vo_control(struct dec_video *d_video, int vf_cmd, void *data);
#endif /* MPLAYER_DEC_VIDEO_H */