mirror of
https://github.com/mpv-player/mpv
synced 2024-12-22 23:02:37 +00:00
8fad4b8eab
Coverart mode has the same issue as no-video mode, except that the video chain is fully active. It shows only 1 frame at the start, which would normally mean that only the subtitle at timestamp 0 is shown. Use the no-video subtitle rendering mode in this case instead. (This still doesn't handle subtitle display when playing cover-art without audio, or playing a single image. This is because there's nothing that will advance playback_pts.)
209 lines
6.4 KiB
C
209 lines
6.4 KiB
C
/*
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* This file is part of mpv.
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*
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* mpv 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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* mpv 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 mpv. If not, see <http://www.gnu.org/licenses/>.
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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 "mpv_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/global.h"
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#include "stream/stream.h"
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#include "sub/dec_sub.h"
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#include "demux/demux.h"
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#include "video/mp_image.h"
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#include "video/decode/dec_video.h"
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#include "video/filter/vf.h"
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#include "core.h"
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// 0: primary sub, 1: secondary sub, -1: not selected
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static int get_order(struct MPContext *mpctx, struct track *track)
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{
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for (int n = 0; n < NUM_PTRACKS; n++) {
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if (mpctx->current_track[n][STREAM_SUB] == track)
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return n;
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}
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return -1;
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}
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static void reset_subtitles(struct MPContext *mpctx, struct track *track)
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{
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if (track->d_sub)
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sub_reset(track->d_sub);
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term_osd_set_subs(mpctx, NULL);
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}
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void reset_subtitle_state(struct MPContext *mpctx)
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{
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for (int n = 0; n < mpctx->num_tracks; n++) {
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struct dec_sub *d_sub = mpctx->tracks[n]->d_sub;
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if (d_sub)
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sub_reset(d_sub);
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}
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term_osd_set_subs(mpctx, NULL);
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}
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void uninit_sub(struct MPContext *mpctx, struct track *track)
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{
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if (track && track->d_sub) {
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reset_subtitles(mpctx, track);
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sub_select(track->d_sub, false);
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int order = get_order(mpctx, track);
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osd_set_sub(mpctx->osd, order, NULL);
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}
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}
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void uninit_sub_all(struct MPContext *mpctx)
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{
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for (int n = 0; n < mpctx->num_tracks; n++)
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uninit_sub(mpctx, mpctx->tracks[n]);
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}
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static bool update_subtitle(struct MPContext *mpctx, double video_pts,
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struct track *track)
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{
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struct MPOpts *opts = mpctx->opts;
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struct dec_sub *dec_sub = track ? track->d_sub : NULL;
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if (!dec_sub || video_pts == MP_NOPTS_VALUE)
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return true;
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if (mpctx->vo_chain) {
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struct mp_image_params params = mpctx->vo_chain->vf->input_params;
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if (params.imgfmt)
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sub_control(dec_sub, SD_CTRL_SET_VIDEO_PARAMS, ¶ms);
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}
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video_pts -= opts->sub_delay;
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if (track->demuxer->fully_read && sub_can_preload(dec_sub)) {
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// Assume fully_read implies no interleaved audio/video streams.
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// (Reading packets will change the demuxer position.)
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demux_seek(track->demuxer, 0, 0);
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sub_preload(dec_sub);
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}
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if (!sub_read_packets(dec_sub, video_pts))
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return false;
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// Handle displaying subtitles on terminal; never done for secondary subs
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if (mpctx->current_track[0][STREAM_SUB] == track && !mpctx->video_out)
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term_osd_set_subs(mpctx, sub_get_text(dec_sub, video_pts));
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// Handle displaying subtitles on VO with no video being played. This is
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// quite differently, because normally subtitles are redrawn on new video
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// frames, using the video frames' timestamps.
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if (mpctx->video_out && mpctx->video_status == STATUS_EOF) {
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if (osd_get_force_video_pts(mpctx->osd) != video_pts) {
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osd_set_force_video_pts(mpctx->osd, video_pts);
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osd_query_and_reset_want_redraw(mpctx->osd);
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vo_redraw(mpctx->video_out);
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// Force an arbitrary minimum FPS
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mp_set_timeout(mpctx, 0.1);
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}
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}
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return true;
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}
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// Return true if the subtitles for the given PTS are ready; false if the player
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// should wait for new demuxer data, and then should retry.
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bool update_subtitles(struct MPContext *mpctx, double video_pts)
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{
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bool ok = true;
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for (int n = 0; n < NUM_PTRACKS; n++)
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ok &= update_subtitle(mpctx, video_pts, mpctx->current_track[n][STREAM_SUB]);
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return ok;
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}
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static struct attachment_list *get_all_attachments(struct MPContext *mpctx)
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{
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struct attachment_list *list = talloc_zero(NULL, struct attachment_list);
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struct demuxer *prev_demuxer = NULL;
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for (int n = 0; n < mpctx->num_tracks; n++) {
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struct track *t = mpctx->tracks[n];
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if (!t->demuxer || prev_demuxer == t->demuxer)
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continue;
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prev_demuxer = t->demuxer;
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for (int i = 0; i < t->demuxer->num_attachments; i++) {
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struct demux_attachment *att = &t->demuxer->attachments[i];
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struct demux_attachment copy = {
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.name = talloc_strdup(list, att->name),
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.type = talloc_strdup(list, att->type),
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.data = talloc_memdup(list, att->data, att->data_size),
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.data_size = att->data_size,
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};
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MP_TARRAY_APPEND(list, list->entries, list->num_entries, copy);
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}
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}
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return list;
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}
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static bool init_subdec(struct MPContext *mpctx, struct track *track)
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{
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assert(!track->d_sub);
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if (!track->demuxer || !track->stream)
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return false;
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track->d_sub = sub_create(mpctx->global, track->stream,
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get_all_attachments(mpctx));
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if (!track->d_sub)
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return false;
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struct track *vtrack = mpctx->current_track[0][STREAM_VIDEO];
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struct mp_codec_params *v_c =
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vtrack && vtrack->stream ? vtrack->stream->codec : NULL;
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double fps = v_c ? v_c->fps : 25;
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sub_control(track->d_sub, SD_CTRL_SET_VIDEO_DEF_FPS, &fps);
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return true;
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}
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void reinit_sub(struct MPContext *mpctx, struct track *track)
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{
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if (!track || !track->stream || track->stream->type != STREAM_SUB)
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return;
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if (!track->d_sub && !init_subdec(mpctx, track)) {
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error_on_track(mpctx, track);
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return;
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}
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sub_select(track->d_sub, true);
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int order = get_order(mpctx, track);
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osd_set_sub(mpctx->osd, order, track->d_sub);
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sub_control(track->d_sub, SD_CTRL_SET_TOP, &(bool){!!order});
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if (mpctx->playback_initialized)
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update_subtitles(mpctx, mpctx->playback_pts);
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}
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void reinit_sub_all(struct MPContext *mpctx)
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{
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for (int n = 0; n < NUM_PTRACKS; n++)
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reinit_sub(mpctx, mpctx->current_track[n][STREAM_SUB]);
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}
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