mirror of https://github.com/mpv-player/mpv
359 lines
12 KiB
C
359 lines
12 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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#include <stddef.h>
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#include <stdbool.h>
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#include <inttypes.h>
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#include <math.h>
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#include <assert.h>
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#include "config.h"
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#include "talloc.h"
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#include "mpvcore/mp_msg.h"
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#include "mpvcore/options.h"
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#include "mpvcore/mp_common.h"
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#include "mpvcore/encode.h"
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#include "mpvcore/m_property.h"
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#include "audio/out/ao.h"
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#include "demux/demux.h"
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#include "stream/stream.h"
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#include "sub/osd.h"
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#include "video/hwdec.h"
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#include "video/filter/vf.h"
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#include "video/decode/dec_video.h"
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#include "video/out/vo.h"
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#include "mp_core.h"
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#include "command.h"
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void update_fps(struct MPContext *mpctx)
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{
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#if HAVE_ENCODING
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struct dec_video *d_video = mpctx->d_video;
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if (mpctx->encode_lavc_ctx && d_video)
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encode_lavc_set_video_fps(mpctx->encode_lavc_ctx, d_video->fps);
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#endif
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}
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static void recreate_video_filters(struct MPContext *mpctx)
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{
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struct MPOpts *opts = mpctx->opts;
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struct dec_video *d_video = mpctx->d_video;
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assert(d_video);
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vf_uninit_filter_chain(d_video->vfilter);
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char *vf_arg[] = {
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"_oldargs_", (char *)mpctx->video_out, NULL
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};
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d_video->vfilter = vf_open_filter(opts, NULL, "vo", vf_arg);
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d_video->vfilter = append_filters(d_video->vfilter, opts->vf_settings);
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struct vf_instance *vf = d_video->vfilter;
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mpctx->osd->render_subs_in_filter
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= vf->control(vf, VFCTRL_INIT_OSD, NULL) == VO_TRUE;
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}
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int reinit_video_filters(struct MPContext *mpctx)
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{
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struct dec_video *d_video = mpctx->d_video;
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if (!d_video)
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return -2;
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recreate_video_filters(mpctx);
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video_reinit_vo(d_video);
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return d_video->vf_initialized > 0 ? 0 : -1;
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}
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int reinit_video_chain(struct MPContext *mpctx)
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{
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struct MPOpts *opts = mpctx->opts;
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assert(!(mpctx->initialized_flags & INITIALIZED_VCODEC));
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assert(!mpctx->d_video);
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init_demux_stream(mpctx, STREAM_VIDEO);
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struct sh_stream *sh = mpctx->sh[STREAM_VIDEO];
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if (!sh)
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goto no_video;
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MP_VERBOSE(mpctx, "[V] fourcc:0x%X size:%dx%d fps:%5.3f\n",
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sh->format,
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sh->video->disp_w, sh->video->disp_h,
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sh->video->fps);
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double ar = -1.0;
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//================== Init VIDEO (codec & libvo) ==========================
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if (!opts->fixed_vo || !(mpctx->initialized_flags & INITIALIZED_VO)) {
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mpctx->video_out = init_best_video_out(mpctx->global, mpctx->input,
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mpctx->encode_lavc_ctx);
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if (!mpctx->video_out) {
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MP_FATAL(mpctx, "Error opening/initializing "
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"the selected video_out (-vo) device.\n");
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goto err_out;
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}
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mpctx->mouse_cursor_visible = true;
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mpctx->initialized_flags |= INITIALIZED_VO;
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}
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update_window_title(mpctx, true);
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struct dec_video *d_video = talloc_zero(NULL, struct dec_video);
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mpctx->d_video = d_video;
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d_video->last_pts = MP_NOPTS_VALUE;
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d_video->last_packet_pts = MP_NOPTS_VALUE;
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d_video->opts = mpctx->opts;
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d_video->header = sh;
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d_video->fps = sh->video->fps;
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mpctx->initialized_flags |= INITIALIZED_VCODEC;
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vo_control(mpctx->video_out, VOCTRL_GET_HWDEC_INFO, &d_video->hwdec_info);
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if (stream_control(sh->demuxer->stream, STREAM_CTRL_GET_ASPECT_RATIO, &ar)
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!= STREAM_UNSUPPORTED)
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d_video->stream_aspect = ar;
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recreate_video_filters(mpctx);
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if (!video_init_best_codec(d_video, opts->video_decoders))
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goto err_out;
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bool saver_state = opts->pause || !opts->stop_screensaver;
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vo_control(mpctx->video_out, saver_state ? VOCTRL_RESTORE_SCREENSAVER
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: VOCTRL_KILL_SCREENSAVER, NULL);
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vo_control(mpctx->video_out, mpctx->paused ? VOCTRL_PAUSE
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: VOCTRL_RESUME, NULL);
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mpctx->last_vf_reconfig_count = 0;
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mpctx->restart_playback = true;
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mpctx->sync_audio_to_video = !sh->attached_picture;
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mpctx->delay = 0;
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mpctx->vo_pts_history_seek_ts++;
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vo_seek_reset(mpctx->video_out);
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reset_subtitles(mpctx);
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if (opts->force_fps) {
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d_video->fps = opts->force_fps;
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MP_INFO(mpctx, "FPS forced to be %5.3f.\n", d_video->fps);
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}
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if (!sh->video->fps && !opts->force_fps && !opts->correct_pts) {
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MP_ERR(mpctx, "FPS not specified in the "
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"header or invalid, use the -fps option.\n");
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}
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update_fps(mpctx);
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return 1;
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err_out:
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no_video:
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uninit_player(mpctx, INITIALIZED_VCODEC | (opts->force_vo ? 0 : INITIALIZED_VO));
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cleanup_demux_stream(mpctx, STREAM_VIDEO);
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mpctx->current_track[STREAM_VIDEO] = NULL;
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handle_force_window(mpctx, true);
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MP_INFO(mpctx, "Video: no video\n");
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return 0;
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}
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// Try to refresh the video by doing a precise seek to the currently displayed
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// frame. This can go wrong in all sorts of ways, so use sparingly.
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void mp_force_video_refresh(struct MPContext *mpctx)
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{
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struct MPOpts *opts = mpctx->opts;
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// If not paused, the next frame should come soon enough.
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if (opts->pause && mpctx->last_vo_pts != MP_NOPTS_VALUE)
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queue_seek(mpctx, MPSEEK_ABSOLUTE, mpctx->last_vo_pts, 1);
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}
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static bool filter_output_queued_frame(struct MPContext *mpctx)
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{
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struct dec_video *d_video = mpctx->d_video;
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struct vo *video_out = mpctx->video_out;
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struct mp_image *img = vf_chain_output_queued_frame(d_video->vfilter);
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if (img)
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vo_queue_image(video_out, img);
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talloc_free(img);
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return !!img;
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}
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static bool load_next_vo_frame(struct MPContext *mpctx, bool eof)
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{
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if (vo_get_buffered_frame(mpctx->video_out, eof) >= 0)
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return true;
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if (filter_output_queued_frame(mpctx))
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return true;
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return false;
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}
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static void init_filter_params(struct MPContext *mpctx)
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{
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struct MPOpts *opts = mpctx->opts;
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struct dec_video *d_video = mpctx->d_video;
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// Note that the video decoder already initializes the filter chain. This
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// might recreate the chain a second time, which is not very elegant, but
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// allows us to test whether enabling deinterlacing works with the current
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// video format and other filters.
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if (d_video->vf_initialized != 1)
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return;
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if (d_video->vf_reconfig_count <= mpctx->last_vf_reconfig_count) {
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if (opts->deinterlace >= 0) {
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mp_property_do("deinterlace", M_PROPERTY_SET, &opts->deinterlace,
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mpctx);
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}
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}
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// Setting filter params has to be "stable" (no change if params already
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// set) - checking the reconfig count is just an optimization.
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mpctx->last_vf_reconfig_count = d_video->vf_reconfig_count;
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}
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static void filter_video(struct MPContext *mpctx, struct mp_image *frame)
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{
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struct dec_video *d_video = mpctx->d_video;
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init_filter_params(mpctx);
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mp_image_set_params(frame, &d_video->vf_input); // force csp/aspect overrides
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vf_filter_frame(d_video->vfilter, frame);
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filter_output_queued_frame(mpctx);
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}
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static int check_framedrop(struct MPContext *mpctx, double frame_time)
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{
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struct MPOpts *opts = mpctx->opts;
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// check for frame-drop:
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if (mpctx->d_audio && !mpctx->ao->untimed &&
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!demux_stream_eof(mpctx->sh[STREAM_AUDIO]))
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{
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float delay = opts->playback_speed * ao_get_delay(mpctx->ao);
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float d = delay - mpctx->delay;
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float fps = mpctx->d_video->fps;
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if (frame_time < 0)
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frame_time = fps > 0 ? 1.0 / fps : 0;
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// we should avoid dropping too many frames in sequence unless we
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// are too late. and we allow 100ms A-V delay here:
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if (d < -mpctx->dropped_frames * frame_time - 0.100 && !mpctx->paused
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&& !mpctx->restart_playback) {
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mpctx->drop_frame_cnt++;
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mpctx->dropped_frames++;
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return mpctx->opts->frame_dropping;
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} else
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mpctx->dropped_frames = 0;
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}
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return 0;
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}
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static double update_video_attached_pic(struct MPContext *mpctx)
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{
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struct dec_video *d_video = mpctx->d_video;
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// Try to decode the picture multiple times, until it is displayed.
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if (mpctx->video_out->hasframe)
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return -1;
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struct mp_image *decoded_frame =
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video_decode(d_video, d_video->header->attached_picture, 0);
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if (decoded_frame)
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filter_video(mpctx, decoded_frame);
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load_next_vo_frame(mpctx, true);
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d_video->pts = MP_NOPTS_VALUE;
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return 0;
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}
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double update_video(struct MPContext *mpctx, double endpts)
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{
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struct dec_video *d_video = mpctx->d_video;
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struct vo *video_out = mpctx->video_out;
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vf_control(d_video->vfilter, VFCTRL_SET_OSD_OBJ, mpctx->osd); // for vf_sub
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if (d_video->header->attached_picture)
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return update_video_attached_pic(mpctx);
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if (!load_next_vo_frame(mpctx, false)) {
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struct demux_packet *pkt = demux_read_packet(d_video->header);
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if (pkt && pkt->pts != MP_NOPTS_VALUE)
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pkt->pts += mpctx->video_offset;
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if (pkt && pkt->pts >= mpctx->hrseek_pts - .005)
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mpctx->hrseek_framedrop = false;
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int framedrop_type = mpctx->hrseek_active && mpctx->hrseek_framedrop ?
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1 : check_framedrop(mpctx, -1);
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struct mp_image *decoded_frame =
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video_decode(d_video, pkt, framedrop_type);
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talloc_free(pkt);
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if (decoded_frame) {
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filter_video(mpctx, decoded_frame);
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} else if (!pkt) {
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if (!load_next_vo_frame(mpctx, true))
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return -1;
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}
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}
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if (!video_out->frame_loaded)
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return 0;
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double pts = video_out->next_pts;
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if (pts == MP_NOPTS_VALUE) {
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MP_ERR(mpctx, "Video pts after filters MISSING\n");
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// Try to use decoder pts from before filters
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pts = d_video->pts;
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if (pts == MP_NOPTS_VALUE)
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pts = d_video->last_pts;
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}
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if (endpts == MP_NOPTS_VALUE || pts < endpts)
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add_frame_pts(mpctx, pts);
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if (mpctx->hrseek_active && pts < mpctx->hrseek_pts - .005) {
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vo_skip_frame(video_out);
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return 0;
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}
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mpctx->hrseek_active = false;
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d_video->pts = pts;
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if (d_video->last_pts == MP_NOPTS_VALUE) {
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d_video->last_pts = d_video->pts;
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} else if (d_video->last_pts > d_video->pts) {
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MP_WARN(mpctx, "Decreasing video pts: %f < %f\n",
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d_video->pts, d_video->last_pts);
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/* If the difference in pts is small treat it as jitter around the
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* right value (possibly caused by incorrect timestamp ordering) and
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* just show this frame immediately after the last one.
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* Treat bigger differences as timestamp resets and start counting
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* timing of later frames from the position of this one. */
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if (d_video->last_pts - d_video->pts > 0.5)
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d_video->last_pts = d_video->pts;
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else
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d_video->pts = d_video->last_pts;
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} else if (d_video->pts >= d_video->last_pts + 60) {
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// Assume a PTS difference >= 60 seconds is a discontinuity.
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MP_WARN(mpctx, "Jump in video pts: %f -> %f\n",
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d_video->last_pts, d_video->pts);
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d_video->last_pts = d_video->pts;
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}
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double frame_time = d_video->pts - d_video->last_pts;
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d_video->last_pts = d_video->pts;
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if (mpctx->d_audio)
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mpctx->delay -= frame_time;
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return frame_time;
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}
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