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Diffstat (limited to 'core/timeline/tl_matroska.c')
-rw-r--r--core/timeline/tl_matroska.c374
1 files changed, 0 insertions, 374 deletions
diff --git a/core/timeline/tl_matroska.c b/core/timeline/tl_matroska.c
deleted file mode 100644
index cc6e62d429..0000000000
--- a/core/timeline/tl_matroska.c
+++ /dev/null
@@ -1,374 +0,0 @@
-/*
- * 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 <stdlib.h>
-#include <stdbool.h>
-#include <inttypes.h>
-#include <assert.h>
-#include <dirent.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <unistd.h>
-#include <libavutil/common.h>
-
-#include "osdep/io.h"
-
-#include "talloc.h"
-
-#include "core/mp_core.h"
-#include "core/mp_msg.h"
-#include "demux/demux.h"
-#include "core/path.h"
-#include "core/bstr.h"
-#include "core/mp_common.h"
-#include "stream/stream.h"
-
-struct find_entry {
- char *name;
- int matchlen;
- off_t size;
-};
-
-static int cmp_entry(const void *pa, const void *pb)
-{
- const struct find_entry *a = pa, *b = pb;
- // check "similar" filenames first
- int matchdiff = b->matchlen - a->matchlen;
- if (matchdiff)
- return FFSIGN(matchdiff);
- // check small files first
- off_t sizediff = a->size - b->size;
- if (sizediff)
- return FFSIGN(sizediff);
- return 0;
-}
-
-static char **find_files(const char *original_file, const char *suffix)
-{
- void *tmpmem = talloc_new(NULL);
- char *basename = mp_basename(original_file);
- struct bstr directory = mp_dirname(original_file);
- char **results = talloc_size(NULL, 0);
- char *dir_zero = bstrdup0(tmpmem, directory);
- DIR *dp = opendir(dir_zero);
- if (!dp) {
- talloc_free(tmpmem);
- return results;
- }
- struct find_entry *entries = NULL;
- struct dirent *ep;
- int num_results = 0;
- while ((ep = readdir(dp))) {
- int suffix_offset = strlen(ep->d_name) - strlen(suffix);
- // name must end with suffix
- if (suffix_offset < 0 || strcmp(ep->d_name + suffix_offset, suffix))
- continue;
- // don't list the original name
- if (!strcmp(ep->d_name, basename))
- continue;
-
- char *name = mp_path_join(results, directory, bstr0(ep->d_name));
- char *s1 = ep->d_name;
- char *s2 = basename;
- int matchlen = 0;
- while (*s1 && *s1++ == *s2++)
- matchlen++;
- // be a bit more fuzzy about matching the filename
- matchlen = (matchlen + 3) / 5;
-
- struct stat statbuf;
- if (stat(name, &statbuf) != 0)
- continue;
- off_t size = statbuf.st_size;
-
- entries = talloc_realloc(tmpmem, entries, struct find_entry,
- num_results + 1);
- entries[num_results] = (struct find_entry) { name, matchlen, size };
- num_results++;
- }
- closedir(dp);
- // NOTE: maybe should make it compare pointers instead
- if (entries)
- qsort(entries, num_results, sizeof(struct find_entry), cmp_entry);
- results = talloc_realloc(NULL, results, char *, num_results);
- for (int i = 0; i < num_results; i++) {
- results[i] = entries[i].name;
- }
- talloc_free(tmpmem);
- return results;
-}
-
-static int enable_cache(struct MPContext *mpctx, struct stream **stream,
- struct demuxer **demuxer, struct demuxer_params *params)
-{
- struct MPOpts *opts = mpctx->opts;
-
- if (opts->stream_cache_size <= 0)
- return 0;
-
- char *filename = talloc_strdup(NULL, (*demuxer)->filename);
- free_demuxer(*demuxer);
- free_stream(*stream);
-
- *stream = stream_open(filename, opts);
- if (!*stream) {
- talloc_free(filename);
- return -1;
- }
-
- stream_enable_cache_percent(stream,
- opts->stream_cache_size,
- opts->stream_cache_def_size,
- opts->stream_cache_min_percent,
- opts->stream_cache_seek_min_percent);
-
- *demuxer = demux_open(*stream, "mkv", params, opts);
- if (!*demuxer) {
- talloc_free(filename);
- free_stream(*stream);
- return -1;
- }
-
- talloc_free(filename);
- return 1;
-}
-
-// segment = get Nth segment of a multi-segment file
-static bool check_file_seg(struct MPContext *mpctx, struct demuxer **sources,
- int num_sources, unsigned char uid_map[][16],
- char *filename, int segment)
-{
- bool was_valid = false;
- struct demuxer_params params = {
- .matroska_wanted_uids = uid_map,
- .matroska_wanted_segment = segment,
- .matroska_was_valid = &was_valid,
- };
- struct stream *s = stream_open(filename, mpctx->opts);
- if (!s)
- return false;
- struct demuxer *d = demux_open(s, "mkv", &params, mpctx->opts);
-
- if (!d) {
- free_stream(s);
- return was_valid;
- }
- if (d->type == DEMUXER_TYPE_MATROSKA) {
- for (int i = 1; i < num_sources; i++) {
- if (sources[i])
- 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, d->filename);
-
- if (enable_cache(mpctx, &s, &d, &params) < 0)
- continue;
-
- sources[i] = d;
- return true;
- }
- }
- }
- free_demuxer(d);
- free_stream(s);
- return was_valid;
-}
-
-static void check_file(struct MPContext *mpctx, struct demuxer **sources,
- int num_sources, unsigned char uid_map[][16],
- char *filename, int first)
-{
- for (int segment = first; ; segment++) {
- if (!check_file_seg(mpctx, sources, num_sources, uid_map,
- filename, segment))
- break;
- }
-}
-
-static bool missing(struct demuxer **sources, int num_sources)
-{
- for (int i = 0; i < num_sources; i++) {
- if (!sources[i])
- return true;
- }
- return false;
-}
-
-static int find_ordered_chapter_sources(struct MPContext *mpctx,
- struct demuxer **sources,
- int num_sources,
- unsigned char uid_map[][16])
-{
- int num_filenames = 0;
- char **filenames = NULL;
- if (num_sources > 1) {
- char *main_filename = mpctx->demuxer->filename;
- mp_msg(MSGT_CPLAYER, MSGL_INFO, "This file references data from "
- "other sources.\n");
- if (mpctx->demuxer->stream->uncached_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(main_filename, ".mkv");
- num_filenames = MP_TALLOC_ELEMS(filenames);
- }
- // Possibly get further segments appended to the first segment
- check_file(mpctx, sources, num_sources, uid_map, main_filename, 1);
- }
-
- for (int i = 0; i < num_filenames; i++) {
- if (!missing(sources, num_sources))
- break;
- mp_msg(MSGT_CPLAYER, MSGL_INFO, "Checking file %s\n", filenames[i]);
- check_file(mpctx, sources, num_sources, uid_map, filenames[i], 0);
- }
-
- talloc_free(filenames);
- if (missing(sources, num_sources)) {
- mp_msg(MSGT_CPLAYER, MSGL_ERR, "Failed to find ordered chapter part!\n"
- "There will be parts MISSING from the video!\n");
- int j = 1;
- for (int i = 1; i < num_sources; i++)
- if (sources[i]) {
- sources[j] = sources[i];
- memcpy(uid_map[j], uid_map[i], 16);
- j++;
- }
- num_sources = j;
- }
- return num_sources;
-}
-
-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 demuxer **sources = talloc_array_ptrtype(NULL, sources,
- m->num_ordered_chapters+1);
- sources[0] = mpctx->demuxer;
- unsigned char (*uid_map)[16] = talloc_array_ptrtype(NULL, uid_map,
- m->num_ordered_chapters + 1);
- 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] = NULL;
- 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 %g ms.\n", i, join_diff / 1e6);
- 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;
- talloc_free(uid_map);
-
- if (!part_count) {
- // None of the parts come from the file itself???
- talloc_free(sources);
- talloc_free(timeline);
- talloc_free(chapters);
- return;
- }
-
- if (missing_time)
- mp_msg(MSGT_CPLAYER, MSGL_ERR, "There are %.3f seconds missing "
- "from the timeline!\n", missing_time / 1e9);
- 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;
-}
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-07 03:37:22 +0000