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Add id to AVChapter, untested (where do i find matroska files with chapters?). 

Originally committed as revision 13255 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Michael Niedermayer 2008-05-23 13:02:27 +00:00
parent 8931e7b48a
commit 7a2a3e8e40
3 changed files with 23 additions and 8 deletions
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3
libavformat/avformat.h
View File

@ -760,11 +760,12 @@ AVProgram *av_new_program(AVFormatContext *s, int id);
* and should be ONLY used by demuxers.
*
* @param s media file handle
* @param id unique id for this chapter
* @param start chapter start time in AV_TIME_BASE units
* @param end chapter end time in AV_TIME_BASE units
* @param title chapter title
*/
int ff_new_chapter(AVFormatContext *s, int64_t start, int64_t end, const char *title);
int ff_new_chapter(AVFormatContext *s, int id, int64_t start, int64_t end, const char *title);
/**
* Set the pts for a given stream.

9
libavformat/matroskadec.c
View File

@ -2160,6 +2160,7 @@ matroska_parse_chapters(AVFormatContext *s)
switch (id) {
case MATROSKA_ID_EDITIONENTRY: {
uint64_t end = AV_NOPTS_VALUE, start = AV_NOPTS_VALUE;
int64_t uid= -1;
char* title = NULL;
/* if there is more than one chapter edition
we take only the first one */
@ -2235,9 +2236,11 @@ matroska_parse_chapters(AVFormatContext *s)
}
break;
case MATROSKA_ID_CHAPTERUID:
res = ebml_read_uint(matroska, &id, &uid);
break;
default:
av_log(s, AV_LOG_INFO, "Ignoring unknown Chapter atom ID 0x%x\n", id);
case MATROSKA_ID_CHAPTERUID:
case MATROSKA_ID_CHAPTERFLAGHIDDEN:
case EBML_ID_VOID:
res = ebml_read_skip(matroska);
@ -2250,11 +2253,11 @@ matroska_parse_chapters(AVFormatContext *s)
}
}
if (start != AV_NOPTS_VALUE) {
if (start != AV_NOPTS_VALUE && uid != -1) {
start = start * AV_TIME_BASE / 1000000000;
if (end != AV_NOPTS_VALUE)
end = end * AV_TIME_BASE / 1000000000;
res = ff_new_chapter(s, start, end, title);
res = ff_new_chapter(s, uid, start, end, title);
}
av_free(title);
break;

19
libavformat/utils.c
View File

@ -2234,18 +2234,29 @@ void av_set_program_name(AVProgram *program, char *provider_name, char *name)
}
}
int ff_new_chapter(AVFormatContext *s, int64_t start, int64_t end, const char *title)
int ff_new_chapter(AVFormatContext *s, int id, int64_t start, int64_t end, const char *title)
{
AVChapter *chapter = av_mallocz(sizeof(AVChapter));
AVChapter *chapter = NULL;
int i;
for(i=0; i<s->num_chapters; i++)
if(s->chapters[i]->id == id)
chapter = s->chapters[i];
if(!chapter){
chapter= av_mallocz(sizeof(AVChapter));
if(!chapter)
return AVERROR(ENOMEM);
dynarray_add(&s->chapters, &s->num_chapters, chapter);
}
if(chapter->title)
av_free(chapter->title);
if (title)
chapter->title = av_strdup(title);
chapter->id = id;
chapter->start = start;
chapter->end = end;
dynarray_add(&s->chapters, &s->num_chapters, chapter);
return 0;
}