mirror of
https://github.com/mpv-player/mpv
synced 2024-12-25 00:02:13 +00:00
212b51434f
The following commits are reverted partially or completely: "a valid ASS line contains 9 ',' before actual text" "demux_mkv: output correctly formated ASS packets" "libass: add a new ass_process_data() to process demuxed subtitle packets" These commits converted the internal representation of SSA/ASS subtitle packets from the format used by Matroska to a custom format where each packet has contents exactly matching one line in complete SSA script files. AFAIK no files natively use such a format for muxed subtitles. The stated reason for this change was to use a format that could in principle be muxed into a maximal number of containers. SSA subtitles do not have an implicit duration so both start time and duration or end time need to be specified explicitly; the new format moved timing information inside the codec packet data so it could be muxed without modification into containers that can represent only start time at the container level. However such a change is wrong from the viewpoint of program architecture. Timing information belongs to the demuxer level, but these commits moved not only the duration but also the authoritative value of the start time to inside the codec data. Additionally the new format lost the value of the Matroska ReadOrder field which is used by MPlayer. This commit changes the internal packet format back to that used by Matroska and makes the internal Matroska demuxer output that format again. Libavformat still outputs the "new" format; it could be converted back to the Matroska format in demux_lavf.c, but I'm not adding that code at least yet. The current lavf code has similar problems as the reverted code in MPlayer, and it also currently fails to provide any way to access the value of the ReadOrder field. I hope that the lavf side will be improved; if it isn't conversion can be added later. For now I'll make MPlayer default to the internal Matroska demuxer instead of the lavf one in a separate commit. git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@27550 b3059339-0415-0410-9bf9-f77b7e298cf2
236 lines
8.8 KiB
C
236 lines
8.8 KiB
C
#include <stdlib.h>
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#include "stream/stream.h"
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#include "libmpdemux/demuxer.h"
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#include "libmpdemux/stheader.h"
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#include "mplayer.h"
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#include "libvo/sub.h"
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#include "libvo/video_out.h"
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#include "spudec.h"
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#include "vobsub.h"
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#ifdef CONFIG_TV_TELETEXT
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#include "stream/tv.h"
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#endif
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#include "libavutil/intreadwrite.h"
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#include "m_option.h"
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double sub_last_pts = -303;
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#ifdef CONFIG_ASS
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#include "libass/ass.h"
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#include "libass/ass_mp.h"
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ass_track_t* ass_track = 0; // current track to render
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#endif
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sub_data* subdata = NULL;
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subtitle* vo_sub_last = NULL;
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void update_subtitles(sh_video_t *sh_video, demux_stream_t *d_dvdsub, int reset)
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{
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unsigned char *packet=NULL;
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int len;
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char type = d_dvdsub->sh ? ((sh_sub_t *)d_dvdsub->sh)->type : 'v';
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static subtitle subs;
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if (reset) {
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sub_clear_text(&subs, MP_NOPTS_VALUE);
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if (vo_sub) {
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vo_sub = NULL;
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vo_osd_changed(OSDTYPE_SUBTITLE);
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}
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if (vo_spudec) {
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spudec_reset(vo_spudec);
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vo_osd_changed(OSDTYPE_SPU);
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}
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}
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// find sub
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if (subdata) {
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double pts = sh_video->pts;
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if (sub_fps==0) sub_fps = sh_video->fps;
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current_module = "find_sub";
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if (pts > sub_last_pts || pts < sub_last_pts-1.0) {
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find_sub(subdata, (pts+sub_delay) *
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(subdata->sub_uses_time ? 100. : sub_fps));
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if (vo_sub) vo_sub_last = vo_sub;
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// FIXME! frame counter...
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sub_last_pts = pts;
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}
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}
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// DVD sub:
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if (vo_config_count && vo_spudec &&
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(vobsub_id >= 0 || (dvdsub_id >= 0 && type == 'v'))) {
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int timestamp;
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current_module = "spudec";
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spudec_heartbeat(vo_spudec, 90000*sh_video->timer);
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/* Get a sub packet from the DVD or a vobsub and make a timestamp
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* relative to sh_video->timer */
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while(1) {
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// Vobsub
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len = 0;
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if (vo_vobsub) {
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if (sh_video->pts+sub_delay >= 0) {
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len = vobsub_get_packet(vo_vobsub, sh_video->pts+sub_delay,
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(void**)&packet, ×tamp);
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if (len > 0) {
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timestamp -= (sh_video->pts + sub_delay - sh_video->timer)*90000;
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mp_dbg(MSGT_CPLAYER,MSGL_V,"\rVOB sub: len=%d v_pts=%5.3f v_timer=%5.3f sub=%5.3f ts=%d \n",len,sh_video->pts,sh_video->timer,timestamp / 90000.0,timestamp);
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}
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}
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} else {
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// DVD sub
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len = ds_get_packet_sub(d_dvdsub, (unsigned char**)&packet);
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if (len > 0) {
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// XXX This is wrong, sh_video->pts can be arbitrarily
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// much behind demuxing position. Unfortunately using
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// d_video->pts which would have been the simplest
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// improvement doesn't work because mpeg specific hacks
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// in video.c set d_video->pts to 0.
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float x = d_dvdsub->pts - sh_video->pts;
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if (x > -20 && x < 20) // prevent missing subs on pts reset
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timestamp = 90000*(sh_video->timer + d_dvdsub->pts
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+ sub_delay - sh_video->pts);
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else timestamp = 90000*(sh_video->timer + sub_delay);
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mp_dbg(MSGT_CPLAYER, MSGL_V, "\rDVD sub: len=%d "
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"v_pts=%5.3f s_pts=%5.3f ts=%d \n", len,
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sh_video->pts, d_dvdsub->pts, timestamp);
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}
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}
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if (len<=0 || !packet) break;
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if (vo_vobsub || timestamp >= 0)
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spudec_assemble(vo_spudec, packet, len, timestamp);
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}
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if (spudec_changed(vo_spudec))
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vo_osd_changed(OSDTYPE_SPU);
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} else if (dvdsub_id >= 0 && (type == 't' || type == 'm' || type == 'a')) {
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double curpts = sh_video->pts + sub_delay;
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double endpts;
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vo_sub = &subs;
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while (d_dvdsub->first) {
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double pts = ds_get_next_pts(d_dvdsub);
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if (pts > curpts)
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break;
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endpts = d_dvdsub->first->endpts;
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len = ds_get_packet_sub(d_dvdsub, &packet);
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if (type == 'm') {
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if (len < 2) continue;
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len = FFMIN(len - 2, AV_RB16(packet));
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packet += 2;
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}
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#ifdef CONFIG_ASS
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if (ass_enabled) {
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sh_sub_t* sh = d_dvdsub->sh;
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ass_track = sh ? sh->ass_track : NULL;
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if (!ass_track) continue;
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if (type == 'a') { // ssa/ass subs with libass
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ass_process_chunk(ass_track, packet, len,
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(long long)(pts*1000 + 0.5),
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(long long)((endpts-pts)*1000 + 0.5));
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} else { // plaintext subs with libass
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vo_sub = NULL;
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if (pts != MP_NOPTS_VALUE) {
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if (endpts == MP_NOPTS_VALUE) endpts = pts + 3;
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sub_clear_text(&subs, MP_NOPTS_VALUE);
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sub_add_text(&subs, packet, len, endpts);
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subs.start = pts * 100;
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subs.end = endpts * 100;
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ass_process_subtitle(ass_track, &subs);
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}
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}
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continue;
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}
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#endif
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if (pts != MP_NOPTS_VALUE) {
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if (endpts == MP_NOPTS_VALUE)
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sub_clear_text(&subs, MP_NOPTS_VALUE);
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if (type == 'a') { // ssa/ass subs without libass => convert to plaintext
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int i;
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unsigned char* p = packet;
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for (i=0; i < 8 && *p != '\0'; p++)
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if (*p == ',')
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i++;
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if (*p == '\0') /* Broken line? */
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continue;
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len -= p - packet;
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packet = p;
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}
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sub_add_text(&subs, packet, len, endpts);
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vo_osd_changed(OSDTYPE_SUBTITLE);
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}
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}
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if (sub_clear_text(&subs, curpts))
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vo_osd_changed(OSDTYPE_SUBTITLE);
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}
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current_module=NULL;
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}
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void update_teletext(sh_video_t *sh_video, demuxer_t *demuxer, int reset)
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{
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#ifdef CONFIG_TV_TELETEXT
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tvi_handle_t* tvh=demuxer->priv;
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int page_changed;
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if (demuxer->type != DEMUXER_TYPE_TV || !tvh) return;
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//Also forcing page update when such ioctl is not supported or call error occured
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if(tvh->functions->control(tvh->priv,TV_VBI_CONTROL_IS_CHANGED,&page_changed)!=TVI_CONTROL_TRUE)
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page_changed=1;
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if(!page_changed)
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return;
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if(tvh->functions->control(tvh->priv,TV_VBI_CONTROL_GET_VBIPAGE,&vo_osd_teletext_page)!=TVI_CONTROL_TRUE)
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vo_osd_teletext_page=NULL;
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if(tvh->functions->control(tvh->priv,TV_VBI_CONTROL_GET_HALF_PAGE,&vo_osd_teletext_half)!=TVI_CONTROL_TRUE)
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vo_osd_teletext_half=0;
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if(tvh->functions->control(tvh->priv,TV_VBI_CONTROL_GET_MODE,&vo_osd_teletext_mode)!=TVI_CONTROL_TRUE)
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vo_osd_teletext_mode=0;
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if(tvh->functions->control(tvh->priv,TV_VBI_CONTROL_GET_FORMAT,&vo_osd_teletext_format)!=TVI_CONTROL_TRUE)
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vo_osd_teletext_format=0;
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vo_osd_changed(OSDTYPE_TELETEXT);
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tvh->functions->control(tvh->priv,TV_VBI_CONTROL_MARK_UNCHANGED,NULL);
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#endif
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}
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int select_audio(demuxer_t* demuxer, int audio_id, char* audio_lang)
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{
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if (audio_id == -1 && audio_lang)
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audio_id = demuxer_audio_track_by_lang(demuxer, audio_lang);
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if (audio_id == -1)
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audio_id = demuxer_default_audio_track(demuxer);
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if (audio_id != -1) // -1 (automatic) is the default behaviour of demuxers
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demuxer_switch_audio(demuxer, audio_id);
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if (audio_id == -2) { // some demuxers don't yet know how to switch to no sound
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demuxer->audio->id = -2;
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demuxer->audio->sh = NULL;
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}
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return demuxer->audio->id;
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}
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/* Parse -noconfig common to both programs */
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int disable_system_conf=0;
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int disable_user_conf=0;
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#ifdef CONFIG_GUI
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int disable_gui_conf=0;
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#endif /* CONFIG_GUI */
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/* Disable all configuration files */
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static void noconfig_all(void)
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{
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disable_system_conf = 1;
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disable_user_conf = 1;
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#ifdef CONFIG_GUI
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disable_gui_conf = 1;
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#endif /* CONFIG_GUI */
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}
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const m_option_t noconfig_opts[] = {
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{"all", noconfig_all, CONF_TYPE_FUNC, CONF_GLOBAL|CONF_NOCFG|CONF_PRE_PARSE, 0, 0, NULL},
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{"system", &disable_system_conf, CONF_TYPE_FLAG, CONF_GLOBAL|CONF_NOCFG|CONF_PRE_PARSE, 0, 1, NULL},
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{"user", &disable_user_conf, CONF_TYPE_FLAG, CONF_GLOBAL|CONF_NOCFG|CONF_PRE_PARSE, 0, 1, NULL},
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#ifdef CONFIG_GUI
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{"gui", &disable_gui_conf, CONF_TYPE_FLAG, CONF_GLOBAL|CONF_NOCFG|CONF_PRE_PARSE, 0, 1, NULL},
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#endif /* CONFIG_GUI */
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{NULL, NULL, 0, 0, 0, 0, NULL}
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};
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