mirror of
https://github.com/mpv-player/mpv
synced 2024-12-25 00:02:13 +00:00
423 lines
14 KiB
C
423 lines
14 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 "common/msg.h"
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#include "options/options.h"
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#include "common/common.h"
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#include "common/encode.h"
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#include "options/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/decode/vd.h"
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#include "video/out/vo.h"
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#include "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 set_allowed_vo_formats(struct vf_chain *c, struct vo *vo)
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{
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for (int fmt = IMGFMT_START; fmt < IMGFMT_END; fmt++) {
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c->allowed_output_formats[fmt - IMGFMT_START] =
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vo->driver->query_format(vo, fmt);
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}
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}
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static void reconfig_video(struct MPContext *mpctx,
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const struct mp_image_params *params,
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bool probe_only)
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{
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struct dec_video *d_video = mpctx->d_video;
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d_video->decoder_output = *params;
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set_allowed_vo_formats(d_video->vfilter, mpctx->video_out);
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if (video_reconfig_filters(d_video, params) < 0) {
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// Most video filters don't work with hardware decoding, so this
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// might be the reason filter reconfig failed.
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if (!probe_only &&
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video_vd_control(d_video, VDCTRL_FORCE_HWDEC_FALLBACK, NULL) == CONTROL_OK)
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{
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// Fallback active; decoder will return software format next
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// time. Don't abort video decoding.
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d_video->vfilter->initialized = 0;
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}
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return;
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}
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if (d_video->vfilter->initialized < 1)
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return;
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struct mp_image_params p = d_video->vfilter->output_params;
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const struct vo_driver *info = mpctx->video_out->driver;
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mp_msg(MSGT_CPLAYER, MSGL_INFO, "VO: [%s] %dx%d => %dx%d %s\n",
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info->name, p.w, p.h, p.d_w, p.d_h, vo_format_name(p.imgfmt));
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mp_msg(MSGT_CPLAYER, MSGL_V, "VO: Description: %s\n", info->description);
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int r = vo_reconfig(mpctx->video_out, &p, 0);
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if (r < 0)
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d_video->vfilter->initialized = -1;
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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_destroy(d_video->vfilter);
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d_video->vfilter = vf_new(opts);
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d_video->vfilter->hwdec = &d_video->hwdec_info;
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vf_append_filter_list(d_video->vfilter, opts->vf_settings);
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// for vf_sub
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vf_control_any(d_video->vfilter, VFCTRL_SET_OSD_OBJ, mpctx->osd);
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mpctx->osd->render_subs_in_filter
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= vf_control_any(d_video->vfilter, VFCTRL_INIT_OSD, NULL) == CONTROL_OK;
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set_allowed_vo_formats(d_video->vfilter, mpctx->video_out);
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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 || !d_video->decoder_output.imgfmt)
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return -2;
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recreate_video_filters(mpctx);
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reconfig_video(mpctx, &d_video->decoder_output, true);
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return d_video->vfilter && d_video->vfilter->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->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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d_video->vo = mpctx->video_out;
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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->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->video_next_pts = MP_NOPTS_VALUE;
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mpctx->playing_last_frame = false;
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mpctx->last_frame_duration = 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_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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// Called after video reinit. This can be generally used to try to insert more
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// filters using the filter chain edit functionality in command.c.
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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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// Note that the filter chain is already initialized. This code might
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// recreate the chain a second time, which is not very elegant, but allows
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// us to test whether enabling deinterlacing works with the current video
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// format and other filters.
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if (opts->deinterlace >= 0)
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mp_property_do("deinterlace", M_PROPERTY_SET, &opts->deinterlace, mpctx);
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}
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static void filter_video(struct MPContext *mpctx, struct mp_image *frame,
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bool reconfig_ok)
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{
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struct dec_video *d_video = mpctx->d_video;
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struct mp_image_params params;
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mp_image_params_from_image(¶ms, frame);
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if (!mp_image_params_equals(&d_video->decoder_output, ¶ms) ||
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d_video->vfilter->initialized < 1)
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{
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// In case we want to wait until filter chain is drained
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if (!reconfig_ok) {
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talloc_free(d_video->waiting_decoded_mpi);
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d_video->waiting_decoded_mpi = frame;
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return;
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}
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reconfig_video(mpctx, ¶ms, false);
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if (d_video->vfilter->initialized > 0)
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init_filter_params(mpctx);
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}
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if (d_video->vfilter->initialized < 1) {
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talloc_free(frame);
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return;
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}
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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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// Reconfigure the video chain and the VO on a format change. This is separate,
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// because we wait with the reconfig until the currently buffered video has
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// finished displaying. Otherwise, we'd resize the window and then wait for the
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// video finishing, which would result in a black window for that frame.
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// Does nothing if there was no pending change.
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void video_execute_format_change(struct MPContext *mpctx)
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{
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struct dec_video *d_video = mpctx->d_video;
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struct mp_image *decoded_frame = d_video->waiting_decoded_mpi;
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d_video->waiting_decoded_mpi = NULL;
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if (decoded_frame)
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filter_video(mpctx, decoded_frame, true);
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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, true);
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load_next_vo_frame(mpctx, true);
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mpctx->video_next_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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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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// Use currently queued VO frame
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} else if (d_video->waiting_decoded_mpi) {
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// Draining on reconfig
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if (!load_next_vo_frame(mpctx, true))
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return -1;
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} else {
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// Decode a new frame
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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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d_video->has_broken_packet_pts)
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{
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mpctx->hrseek_framedrop = false;
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}
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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, false);
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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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// Whether the VO has an image queued.
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// If it does, it will be used to time and display the next frame.
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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 (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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double last_pts = mpctx->video_next_pts;
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if (last_pts == MP_NOPTS_VALUE)
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last_pts = pts;
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double frame_time = pts - last_pts;
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if (frame_time < 0 || frame_time >= 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", last_pts, pts);
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frame_time = 0;
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}
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mpctx->video_next_pts = 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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