mirror of
https://github.com/mpv-player/mpv
synced 2024-12-23 07:12:39 +00:00
fa7c421588
Apparently users prefer this behavior. It was used for subtitles too, so move the code to calculate the video offset into a separate function. Seeking also needs to be fixed. Fixes #1018.
237 lines
7.6 KiB
C
237 lines
7.6 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 "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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void uninit_subs(struct demuxer *demuxer)
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{
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for (int i = 0; i < demuxer->num_streams; i++) {
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struct sh_stream *sh = demuxer->streams[i];
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if (sh->sub) {
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sub_destroy(sh->sub->dec_sub);
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sh->sub->dec_sub = NULL;
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}
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}
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}
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// When reading subtitles from a demuxer, and we read video or audio from the
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// demuxer, we should not explicitly read subtitle packets. (With external
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// subs, we have to.)
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static bool is_interleaved(struct MPContext *mpctx, struct track *track)
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{
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if (track->is_external || !track->demuxer)
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return false;
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struct demuxer *demuxer = track->demuxer;
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for (int t = 0; t < mpctx->num_tracks; t++) {
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struct track *other = mpctx->tracks[t];
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if (other != track && other->selected && other->demuxer == demuxer &&
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(other->type == STREAM_VIDEO || other->type == STREAM_AUDIO))
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return true;
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}
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return track->demuxer == mpctx->demuxer;
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}
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void reset_subtitles(struct MPContext *mpctx, int order)
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{
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int obj = order ? OSDTYPE_SUB2 : OSDTYPE_SUB;
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if (mpctx->d_sub[order])
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sub_reset(mpctx->d_sub[order]);
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set_osd_subtitle(mpctx, NULL);
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osd_set_text(mpctx->osd, obj, NULL);
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}
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void reset_subtitle_state(struct MPContext *mpctx)
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{
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reset_subtitles(mpctx, 0);
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reset_subtitles(mpctx, 1);
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}
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static void update_subtitle(struct MPContext *mpctx, int order)
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{
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struct MPOpts *opts = mpctx->opts;
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if (order == 0) {
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if (!(mpctx->initialized_flags & INITIALIZED_SUB))
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return;
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} else {
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if (!(mpctx->initialized_flags & INITIALIZED_SUB2))
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return;
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}
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struct track *track = mpctx->current_track[order][STREAM_SUB];
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struct dec_sub *dec_sub = mpctx->d_sub[order];
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assert(track && dec_sub);
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int obj = order ? OSDTYPE_SUB2 : OSDTYPE_SUB;
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if (mpctx->d_video) {
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struct mp_image_params params = mpctx->d_video->vfilter->override_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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struct osd_sub_state state;
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osd_get_sub(mpctx->osd, obj, &state);
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state.video_offset = get_track_video_offset(mpctx, track);
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osd_set_sub(mpctx->osd, obj, &state);
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double refpts_s = mpctx->playback_pts - state.video_offset;
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double curpts_s = refpts_s - opts->sub_delay;
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if (!track->preloaded && track->stream) {
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struct sh_stream *sh_stream = track->stream;
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bool interleaved = is_interleaved(mpctx, track);
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assert(sh_stream->sub->dec_sub == dec_sub);
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while (1) {
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if (interleaved && !demux_has_packet(sh_stream))
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break;
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double subpts_s = demux_get_next_pts(sh_stream);
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if (!demux_has_packet(sh_stream))
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break;
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if (subpts_s > curpts_s) {
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MP_DBG(mpctx, "Sub early: c_pts=%5.3f s_pts=%5.3f\n",
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curpts_s, subpts_s);
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// Libass handled subs can be fed to it in advance
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if (!sub_accept_packets_in_advance(dec_sub))
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break;
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// Try to avoid demuxing whole file at once
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if (subpts_s > curpts_s + 1 && !interleaved)
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break;
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}
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struct demux_packet *pkt = demux_read_packet(sh_stream);
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MP_DBG(mpctx, "Sub: c_pts=%5.3f s_pts=%5.3f duration=%5.3f len=%d\n",
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curpts_s, pkt->pts, pkt->duration, pkt->len);
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sub_decode(dec_sub, pkt);
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talloc_free(pkt);
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}
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}
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// Handle displaying subtitles on terminal; never done for secondary subs
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if (order == 0) {
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if (!state.render_bitmap_subs || !mpctx->video_out) {
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sub_lock(dec_sub);
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set_osd_subtitle(mpctx, sub_get_text(dec_sub, curpts_s));
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sub_unlock(dec_sub);
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}
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} else if (order == 1) {
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sub_lock(dec_sub);
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osd_set_text(mpctx->osd, obj, sub_get_text(dec_sub, curpts_s));
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sub_unlock(dec_sub);
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}
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}
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void update_subtitles(struct MPContext *mpctx)
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{
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update_subtitle(mpctx, 0);
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update_subtitle(mpctx, 1);
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}
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static void reinit_subdec(struct MPContext *mpctx, struct track *track,
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struct dec_sub *dec_sub)
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{
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struct MPOpts *opts = mpctx->opts;
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if (sub_is_initialized(dec_sub))
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return;
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struct sh_video *sh_video =
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mpctx->d_video ? mpctx->d_video->header->video : NULL;
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int w = sh_video ? sh_video->disp_w : 0;
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int h = sh_video ? sh_video->disp_h : 0;
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float fps = sh_video ? sh_video->fps : 25;
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sub_set_video_res(dec_sub, w, h);
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sub_set_video_fps(dec_sub, fps);
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sub_set_ass_renderer(dec_sub, mpctx->ass_library, mpctx->ass_renderer);
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sub_init_from_sh(dec_sub, track->stream);
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// Don't do this if the file has video/audio streams. Don't do it even
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// if it has only sub streams, because reading packets will change the
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// demuxer position.
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if (!track->preloaded && track->is_external && !opts->sub_clear_on_seek) {
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demux_seek(track->demuxer, 0, SEEK_ABSOLUTE);
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track->preloaded = sub_read_all_packets(dec_sub, track->stream);
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}
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}
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void reinit_subs(struct MPContext *mpctx, int order)
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{
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struct MPOpts *opts = mpctx->opts;
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struct track *track = mpctx->current_track[order][STREAM_SUB];
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int obj = order ? OSDTYPE_SUB2 : OSDTYPE_SUB;
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int init_flag = order ? INITIALIZED_SUB2 : INITIALIZED_SUB;
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assert(!(mpctx->initialized_flags & init_flag));
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struct sh_stream *sh = track ? track->stream : NULL;
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if (!sh)
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return;
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if (!sh->sub->dec_sub) {
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assert(!mpctx->d_sub[order]);
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sh->sub->dec_sub = sub_create(mpctx->global);
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}
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assert(!mpctx->d_sub[order] || sh->sub->dec_sub == mpctx->d_sub[order]);
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// The decoder is kept in the stream header in order to make ordered
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// chapters work well.
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mpctx->d_sub[order] = sh->sub->dec_sub;
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mpctx->initialized_flags |= init_flag;
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struct dec_sub *dec_sub = mpctx->d_sub[order];
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assert(dec_sub);
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reinit_subdec(mpctx, track, dec_sub);
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struct osd_sub_state state = {
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.dec_sub = dec_sub,
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// Decides whether to use OSD path or normal subtitle rendering path.
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.render_bitmap_subs = opts->ass_enabled || !sub_has_get_text(dec_sub),
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};
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// Secondary subs are rendered with the "text" renderer to transform them
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// to toptitles.
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if (order == 1 && sub_has_get_text(dec_sub))
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state.render_bitmap_subs = false;
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osd_set_sub(mpctx->osd, obj, &state);
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}
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