From e8af22db818f839f5ac25a309e8838ea53e831b2 Mon Sep 17 00:00:00 2001 From: Uoti Urpala Date: Mon, 14 Feb 2011 09:34:39 +0200 Subject: core: ordered chapters: move timeline creation to timeline/ Add new file timeline/tl_matroska.c. Move the code that parses ordered chapter information from Matroska files and creates the timeline structure based on that to the new file. Initialize the format parameter given to open_stream() in the moved code. The previous uninitialized value shouldn't have caused any visible effects. --- timeline/tl_matroska.c | 234 +++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 234 insertions(+) create mode 100644 timeline/tl_matroska.c (limited to 'timeline') diff --git a/timeline/tl_matroska.c b/timeline/tl_matroska.c new file mode 100644 index 0000000000..3c4b34d19d --- /dev/null +++ b/timeline/tl_matroska.c @@ -0,0 +1,234 @@ +/* + * This file is part of MPlayer. + * + * MPlayer is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * MPlayer is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with MPlayer; if not, write to the Free Software Foundation, Inc., + * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. + */ + +#include +#include +#include +#include + +#include "talloc.h" + +#include "mp_core.h" +#include "mp_msg.h" +#include "libmpdemux/demuxer.h" +#include "osdep/findfiles.h" + +static int find_ordered_chapter_sources(struct MPContext *mpctx, + struct content_source *sources, + int num_sources, + unsigned char uid_map[][16]) +{ + int num_filenames = 0; + char **filenames = NULL; + if (num_sources > 1) { + mp_msg(MSGT_CPLAYER, MSGL_INFO, "This file references data from " + "other sources.\n"); + if (mpctx->stream->type != STREAMTYPE_FILE) { + mp_msg(MSGT_CPLAYER, MSGL_WARN, "Playback source is not a " + "normal disk file. Will not search for related files.\n"); + } else { + mp_msg(MSGT_CPLAYER, MSGL_INFO, "Will scan other files in the " + "same directory to find referenced sources.\n"); + filenames = find_files(mpctx->demuxer->filename, ".mkv", + &num_filenames); + } + } + + int num_left = num_sources - 1; + for (int i = 0; i < num_filenames && num_left > 0; i++) { + mp_msg(MSGT_CPLAYER, MSGL_INFO, "Checking file %s\n", + filename_recode(filenames[i])); + int format = 0; + struct stream *s = open_stream(filenames[i], &mpctx->opts, &format); + if (!s) + continue; + struct demuxer *d = demux_open(&mpctx->opts, s, DEMUXER_TYPE_MATROSKA, + mpctx->opts.audio_id, + mpctx->opts.video_id, + mpctx->opts.sub_id, filenames[i]); + if (!d) { + free_stream(s); + continue; + } + if (d->file_format == DEMUXER_TYPE_MATROSKA) { + for (int i = 1; i < num_sources; i++) { + if (sources[i].demuxer) + continue; + if (!memcmp(uid_map[i], d->matroska_data.segment_uid, 16)) { + mp_msg(MSGT_CPLAYER, MSGL_INFO,"Match for source %d: %s\n", + i, filename_recode(d->filename)); + sources[i].stream = s; + sources[i].demuxer = d; + num_left--; + goto match; + } + } + } + free_demuxer(d); + free_stream(s); + continue; + match: + ; + } + talloc_free(filenames); + if (num_left) { + mp_msg(MSGT_CPLAYER, MSGL_ERR, "Failed to find ordered chapter part!\n" + "There will be parts MISSING from the video!\n"); + for (int i = 1, j = 1; i < num_sources; i++) + if (sources[i].demuxer) { + sources[j] = sources[i]; + memcpy(uid_map[j], uid_map[i], 16); + j++; + } + } + return num_sources - num_left; +} + +void build_ordered_chapter_timeline(struct MPContext *mpctx) +{ + struct MPOpts *opts = &mpctx->opts; + + if (!opts->ordered_chapters) { + mp_msg(MSGT_CPLAYER, MSGL_INFO, "File uses ordered chapters, but " + "you have disabled support for them. Ignoring.\n"); + return; + } + + mp_msg(MSGT_CPLAYER, MSGL_INFO, "File uses ordered chapters, will build " + "edit timeline.\n"); + + struct demuxer *demuxer = mpctx->demuxer; + struct matroska_data *m = &demuxer->matroska_data; + + // +1 because sources/uid_map[0] is original file even if all chapters + // actually use other sources and need separate entries + struct content_source *sources = talloc_array_ptrtype(NULL, sources, + m->num_ordered_chapters+1); + sources[0].stream = mpctx->stream; + sources[0].demuxer = mpctx->demuxer; + unsigned char uid_map[m->num_ordered_chapters+1][16]; + int num_sources = 1; + memcpy(uid_map[0], m->segment_uid, 16); + + for (int i = 0; i < m->num_ordered_chapters; i++) { + struct matroska_chapter *c = m->ordered_chapters + i; + if (!c->has_segment_uid) + memcpy(c->segment_uid, m->segment_uid, 16); + + for (int j = 0; j < num_sources; j++) + if (!memcmp(c->segment_uid, uid_map[j], 16)) + goto found1; + memcpy(uid_map[num_sources], c->segment_uid, 16); + sources[num_sources] = (struct content_source){}; + num_sources++; + found1: + ; + } + + num_sources = find_ordered_chapter_sources(mpctx, sources, num_sources, + uid_map); + + + // +1 for terminating chapter with start time marking end of last real one + struct timeline_part *timeline = talloc_array_ptrtype(NULL, timeline, + m->num_ordered_chapters + 1); + struct chapter *chapters = talloc_array_ptrtype(NULL, chapters, + m->num_ordered_chapters); + uint64_t starttime = 0; + uint64_t missing_time = 0; + int part_count = 0; + int num_chapters = 0; + uint64_t prev_part_offset = 0; + for (int i = 0; i < m->num_ordered_chapters; i++) { + struct matroska_chapter *c = m->ordered_chapters + i; + + int j; + for (j = 0; j < num_sources; j++) { + if (!memcmp(c->segment_uid, uid_map[j], 16)) + goto found2; + } + missing_time += c->end - c->start; + continue; + found2:; + /* Only add a separate part if the time or file actually changes. + * Matroska files have chapter divisions that are redundant from + * timeline point of view because the same chapter structure is used + * both to specify the timeline and for normal chapter information. + * Removing a missing inserted external chapter can also cause this. + * We allow for a configurable fudge factor because of files which + * specify chapter end times that are one frame too early; + * we don't want to try seeking over a one frame gap. */ + int64_t join_diff = c->start - starttime - prev_part_offset; + if (part_count == 0 + || FFABS(join_diff) > opts->chapter_merge_threshold * 1000000 + || sources + j != timeline[part_count - 1].source) { + timeline[part_count].source = sources + j; + timeline[part_count].start = starttime / 1e9; + timeline[part_count].source_start = c->start / 1e9; + prev_part_offset = c->start - starttime; + part_count++; + } else if (part_count > 0 && join_diff) { + /* Chapter was merged at an inexact boundary; + * adjust timestamps to match. */ + mp_msg(MSGT_CPLAYER, MSGL_V, "Merging timeline part %d with " + "offset %d ms.\n", i, (int) join_diff); + starttime += join_diff; + } + chapters[num_chapters].start = starttime / 1e9; + chapters[num_chapters].name = talloc_strdup(chapters, c->name); + starttime += c->end - c->start; + num_chapters++; + } + timeline[part_count].start = starttime / 1e9; + + if (!part_count) { + // None of the parts come from the file itself??? + talloc_free(sources); + talloc_free(timeline); + talloc_free(chapters); + return; + } + + mp_msg(MSGT_CPLAYER, MSGL_V, "Timeline contains %d parts from %d " + "sources. Total length %.3f seconds.\n", part_count, num_sources, + timeline[part_count].start); + if (missing_time) + mp_msg(MSGT_CPLAYER, MSGL_ERR, "There are %.3f seconds missing " + "from the timeline!\n", missing_time / 1e9); + mp_msg(MSGT_CPLAYER, MSGL_V, "Source files:\n"); + for (int i = 0; i < num_sources; i++) + mp_msg(MSGT_CPLAYER, MSGL_V, "%d: %s\n", i, + filename_recode(sources[i].demuxer->filename)); + mp_msg(MSGT_CPLAYER, MSGL_V, "Timeline parts: (number, start, " + "source_start, source):\n"); + for (int i = 0; i < part_count; i++) { + struct timeline_part *p = timeline + i; + mp_msg(MSGT_CPLAYER, MSGL_V, "%3d %9.3f %9.3f %3td\n", i, p->start, + p->source_start, p->source - sources); + } + mp_msg(MSGT_CPLAYER, MSGL_V, "END %9.3f\n", timeline[part_count].start); + mpctx->sources = sources; + mpctx->num_sources = num_sources; + mpctx->timeline = timeline; + mpctx->num_timeline_parts = part_count; + mpctx->num_chapters = num_chapters; + mpctx->chapters = chapters; + + mpctx->timeline_part = 0; + mpctx->demuxer = timeline[0].source->demuxer; +} -- cgit v1.2.3