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sdp: Allow passing an AVFormatContext to the SDP generation 

Options from the AVFormatContext can be read for modifying
the generated SDP.

Signed-off-by: Martin Storsjö <martin@martin.st>
This commit is contained in:
Martin Storsjö 2011-05-18 15:41:06 +03:00
parent f33a6a22b4
commit 0558e266a2
3 changed files with 10 additions and 7 deletions
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4
libavformat/internal.h
View File

@ -124,10 +124,12 @@ int ff_url_join(char *str, int size, const char *proto,
* @param dest_type the destination address type, may be NULL
* @param port the destination port of the media stream, 0 if unknown
* @param ttl the time to live of the stream, 0 if not multicast
* @param fmt the AVFormatContext, which might contain options modifying
* the generated SDP
*/
void ff_sdp_write_media(char *buff, int size, AVCodecContext *c,
const char *dest_addr, const char *dest_type,
int port, int ttl);
int port, int ttl, AVFormatContext *fmt);
/**
* Write a packet to another muxer than the one the user originally

2
libavformat/movenc.c
View File

@ -1359,7 +1359,7 @@ static int mov_write_udta_sdp(AVIOContext *pb, AVCodecContext *ctx, int index)
char buf[1000] = "";
int len;
ff_sdp_write_media(buf, sizeof(buf), ctx, NULL, NULL, 0, 0);
ff_sdp_write_media(buf, sizeof(buf), ctx, NULL, NULL, 0, 0, NULL);
av_strlcatf(buf, sizeof(buf), "a=control:streamid=%d\r\n", index);
len = strlen(buf);

11
libavformat/sdp.c
View File

@ -300,7 +300,7 @@ xiph_fail:
return NULL;
}
static char *sdp_write_media_attributes(char *buff, int size, AVCodecContext *c, int payload_type)
static char *sdp_write_media_attributes(char *buff, int size, AVCodecContext *c, int payload_type, AVFormatContext *fmt)
{
char *config = NULL;
@ -449,7 +449,7 @@ static char *sdp_write_media_attributes(char *buff, int size, AVCodecContext *c,
return buff;
}
void ff_sdp_write_media(char *buff, int size, AVCodecContext *c, const char *dest_addr, const char *dest_type, int port, int ttl)
void ff_sdp_write_media(char *buff, int size, AVCodecContext *c, const char *dest_addr, const char *dest_type, int port, int ttl, AVFormatContext *fmt)
{
const char *type;
int payload_type;
@ -472,7 +472,7 @@ void ff_sdp_write_media(char *buff, int size, AVCodecContext *c, const char *des
av_strlcatf(buff, size, "b=AS:%d\r\n", c->bit_rate / 1000);
}
sdp_write_media_attributes(buff, size, c, payload_type);
sdp_write_media_attributes(buff, size, c, payload_type, fmt);
}
int av_sdp_create(AVFormatContext *ac[], int n_files, char *buf, int size)
@ -521,7 +521,8 @@ int av_sdp_create(AVFormatContext *ac[], int n_files, char *buf, int size)
for (j = 0; j < ac[i]->nb_streams; j++) {
ff_sdp_write_media(buf, size,
ac[i]->streams[j]->codec, dst[0] ? dst : NULL,
dst_type, (port > 0) ? port + j * 2 : 0, ttl);
dst_type, (port > 0) ? port + j * 2 : 0, ttl,
ac[i]);
if (port <= 0) {
av_strlcatf(buf, size,
"a=control:streamid=%d\r\n", i + j);
@ -537,7 +538,7 @@ int av_sdp_create(AVFormatContext *ac[], int n_files, char *buf, int size)
return AVERROR(ENOSYS);
}
void ff_sdp_write_media(char *buff, int size, AVCodecContext *c, const char *dest_addr, const char *dest_type, int port, int ttl)
void ff_sdp_write_media(char *buff, int size, AVCodecContext *c, const char *dest_addr, const char *dest_type, int port, int ttl, AVFormatContext *fmt)
{
}
#endif