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https://github.com/mpv-player/mpv
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3bed78fdfd
Using --start with files that use DTS only, or which simply have broken PTS timestamps, would incorrectly drop frames and possibly not execute the seek correctly. Add yet another heuristic to detect this. The intent is that --start and hr-seeks in general should work correctly, but in order to keep things fast, we still want to allow frame dropping during hr-seek if there are no problems doing so. Do this by disabling frame dropping by default, but re-enabling it if there are no problems found for a while. As a consequence, --start might be somewhat slower, but normal user interaction should remain as fast as before. Note that there's something subtle about the added code: the has_broken_packet_pts field is checked even before the first packet is fed to dec_video.c, so the field must not be set to 0 right on start. It's not initially set to 0 anyway, because the heuristic requires decoding some images before enabling frame drop anyway. Note 2: it's not clear whether frame dropping during hr-seek really helps; I didn't benchmark it.
97 lines
3.2 KiB
C
97 lines
3.2 KiB
C
/*
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* This file is part of MPlayer.
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*
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* MPlayer is free software; you can redistribute it and/or modify
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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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* MPlayer is distributed in the hope that it will be useful,
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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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* with MPlayer; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#ifndef MPLAYER_DEC_VIDEO_H
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#define MPLAYER_DEC_VIDEO_H
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#include <stdbool.h>
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#include "demux/stheader.h"
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#include "video/hwdec.h"
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#include "video/mp_image.h"
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struct osd_state;
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struct mp_decoder_list;
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struct dec_video {
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struct MPOpts *opts;
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struct vf_instance *vfilter; // video filter chain
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const struct vd_functions *vd_driver;
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int vf_initialized; // -1 failed, 0 not done, 1 done
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long vf_reconfig_count; // incremented each mpcodecs_reconfig_vo() call
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struct mp_image_params vf_input; // video filter input params
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struct mp_hwdec_info hwdec_info; // video output hwdec handles
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struct sh_stream *header;
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char *decoder_desc;
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void *priv; // for free use by vd_driver
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// Last PTS from decoder (set with each vd_driver->decode() call)
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double codec_pts;
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int num_codec_pts_problems;
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// Last packet DTS from decoder (passed through from source packets)
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double codec_dts;
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int num_codec_dts_problems;
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// PTS sorting (obscure, non-default)
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double buffered_pts[32];
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int num_buffered_pts;
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double sorted_pts;
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int num_sorted_pts_problems;
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double unsorted_pts;
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int num_unsorted_pts_problems;
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int pts_assoc_mode;
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// PTS or DTS of packet last read
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double last_packet_pdts;
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// There was at least one packet with non-sense timestamps.
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int has_broken_packet_pts; // <0: uninitialized, 0: no problems, 1: broken
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// Final PTS of previously decoded image
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double decoded_pts;
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float stream_aspect; // aspect ratio in media headers (DVD IFO files)
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int i_bps; // == bitrate (compressed bytes/sec)
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float fps; // FPS from demuxer or from user override
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float initial_decoder_aspect;
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// State used only by player/video.c
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double last_pts;
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};
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struct mp_decoder_list *video_decoder_list(void);
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bool video_init_best_codec(struct dec_video *d_video, char* video_decoders);
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void video_uninit(struct dec_video *d_video);
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struct demux_packet;
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struct mp_image *video_decode(struct dec_video *d_video,
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struct demux_packet *packet,
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int drop_frame);
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int video_get_colors(struct dec_video *d_video, const char *item, int *value);
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int video_set_colors(struct dec_video *d_video, const char *item, int value);
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void video_reset_decoding(struct dec_video *d_video);
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void video_reinit_vo(struct dec_video *d_video);
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int video_vd_control(struct dec_video *d_video, int cmd, void *arg);
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#endif /* MPLAYER_DEC_VIDEO_H */
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