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add support for chapters definition in lavf 

patch by Anton Khirnov  wyskas _at_ gmail _dot_ com

Originally committed as revision 13240 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Anton Khirnov 2008-05-22 22:00:21 +00:00 committed by Aurelien Jacobs
parent d311f8f3e3
commit 79d7836a5e
2 changed files with 39 additions and 1 deletions
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22
libavformat/avformat.h
View File

@ -22,7 +22,7 @@
#define FFMPEG_AVFORMAT_H
#define LIBAVFORMAT_VERSION_MAJOR 52
#define LIBAVFORMAT_VERSION_MINOR 13
#define LIBAVFORMAT_VERSION_MINOR 14
#define LIBAVFORMAT_VERSION_MICRO 0
#define LIBAVFORMAT_VERSION_INT AV_VERSION_INT(LIBAVFORMAT_VERSION_MAJOR, \
@ -389,6 +389,11 @@ typedef struct AVProgram {
#define AVFMTCTX_NOHEADER 0x0001 /**< signal that no header is present
(streams are added dynamically) */
typedef struct AVChapter {
int64_t start, end; /**< chapter start/end time in AV_TIME_BASE units */
char *title; /**< chapter title */
} AVChapter;
#define MAX_STREAMS 20
/**
@ -514,6 +519,9 @@ typedef struct AVFormatContext {
* obtained from real-time capture devices.
*/
unsigned int max_picture_buffer;
int num_chapters;
AVChapter **chapters;
} AVFormatContext;
typedef struct AVPacketList {
@ -744,6 +752,18 @@ void av_close_input_file(AVFormatContext *s);
AVStream *av_new_stream(AVFormatContext *s, int id);
AVProgram *av_new_program(AVFormatContext *s, int id);
/**
* Add a new chapter.
* This function is NOT part of the public API
* and should be ONLY used by demuxers.
*
* @param s media file handle
* @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);
/**
* Set the pts for a given stream.
*

18
libavformat/utils.c
View File

@ -2148,6 +2148,11 @@ void av_close_input_stream(AVFormatContext *s)
av_freep(&s->programs);
flush_packet_queue(s);
av_freep(&s->priv_data);
while(s->num_chapters--) {
av_free(s->chapters[s->num_chapters]->title);
av_free(s->chapters[s->num_chapters]);
}
av_freep(&s->chapters);
av_free(s);
}
@ -2229,6 +2234,19 @@ 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)
{
AVChapter *chapter = av_mallocz(sizeof(AVChapter));
if(!chapter)
return AVERROR(ENOMEM);
chapter->title = av_strdup(title);
chapter->start = start;
chapter->end = end;
dynarray_add(&s->chapters, &s->num_chapters, chapter);
return 0;
}
/************************************************************/
/* output media file */