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mpv/video/decode/vd.h
wm4 344d44681e video: readd codec delay estimation
Approximately reverts commit 3ccac74d. This failed with some avi files,
which do pseudo-VFR by sending packets with empty frames (or repeat
frames, depending on point of view). Specifically, these packets are not
0 bytes, so they don't get skipped by libavformat, as with the usual VFR
avi hack. Instead, the packet contains a VOP with vop_coded=0, so
libavcodec will just return no frame. We could probably distinguish such
skipped frames and delayed frames by explicitly measuring the codec
delay by counting how long it takes to get the very first frame (and
then treat skips as explicit drops), but we may as well simply reinstate
the old code.

To appease to at least one semi-broken case, do not enable this logic on
the RPI, as the FFmpeg MMAL wrapper has arbitrary buffering (and MMAL
itself is asynchronous).
2015-12-02 14:38:47 +01:00

51 lines
1.6 KiB
C

/*
* 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_VD_H
#define MPLAYER_VD_H
#include "video/mp_image.h"
#include "demux/stheader.h"
#include "dec_video.h"
struct demux_packet;
struct mp_decoder_list;
/* interface of video decoder drivers */
typedef struct vd_functions
{
const char *name;
void (*add_decoders)(struct mp_decoder_list *list);
int (*init)(struct dec_video *vd, const char *decoder);
void (*uninit)(struct dec_video *vd);
int (*control)(struct dec_video *vd, int cmd, void *arg);
struct mp_image *(*decode)(struct dec_video *vd, struct demux_packet *pkt,
int flags);
} vd_functions_t;
// NULL terminated array of all drivers
extern const vd_functions_t *const mpcodecs_vd_drivers[];
enum vd_ctrl {
VDCTRL_RESET = 1, // reset decode state after seeking
VDCTRL_QUERY_UNSEEN_FRAMES, // current decoder lag
VDCTRL_FORCE_HWDEC_FALLBACK, // force software decoding fallback
VDCTRL_GET_HWDEC,
};
#endif /* MPLAYER_VD_H */