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Change function prototype of the sdp_parse_a_line in DynamicProtocolHandler.

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This function is called in rtsp.c for each a= line in the SDP of the Describe
response after m= RTSP stream descriptors. The function prototype used to
take an AVStream argument. For RDT, however, every RTSPStream represents
a set of streams of identical content, and can thus represent multiple
AVStreams. Therefore, it should not take an AVStream as argument. This
patch modifies it to accept a AVFormatContext (of the RTSP/SDP demuxer)
instead. See discussion in "[PATCH/RFC] change function prototype of
parse_sdp_a_line" thread on ML.

Originally committed as revision 16024 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Ronald S. Bultje 2008-12-06 18:41:17 +00:00
parent 022f0b7c01
commit 7b2a070800
4 changed files with 11 additions and 7 deletions
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4
libavformat/rdt.c
View File

@ -405,8 +405,10 @@ rdt_parse_b64buf (unsigned int *target_len, const char *p)
}
static int
rdt_parse_sdp_line (AVStream *stream, PayloadContext *rdt, const char *line)
rdt_parse_sdp_line (AVFormatContext *s, int st_index,
PayloadContext *rdt, const char *line)
{
AVStream *stream = s->streams[st_index];
const char *p = line;
if (av_strstart(p, "OpaqueData:buffer;", &p)) {

5
libavformat/rtp_h264.c
View File

@ -348,9 +348,10 @@ static void h264_free_extradata(PayloadContext *data)
av_free(data);
}
static int parse_h264_sdp_line(AVStream * stream, PayloadContext *h264_data,
const char *line)
static int parse_h264_sdp_line(AVFormatContext *s, int st_index,
PayloadContext *h264_data, const char *line)
{
AVStream *stream = s->streams[st_index];
AVCodecContext *codec = stream->codec;
const char *p = line;

3
libavformat/rtp_internal.h
View File

@ -66,7 +66,8 @@ struct RTPDynamicProtocolHandler_s {
enum CodecID codec_id;
// may be null
int (*parse_sdp_a_line) (AVStream * stream,
int (*parse_sdp_a_line) (AVFormatContext *s,
int st_index,
PayloadContext *priv_data,
const char *line); ///< Parse the a= line from the sdp field
PayloadContext *(*open) (); ///< allocate any data needed by the rtp parsing for this dynamic data.

6
libavformat/rtsp.c
View File

@ -518,7 +518,7 @@ static void sdp_parse_line(AVFormatContext *s, SDPParseState *s1,
rtsp_st = st->priv_data;
if (rtsp_st->sdp_payload_type == payload_type) {
if(rtsp_st->dynamic_handler && rtsp_st->dynamic_handler->parse_sdp_a_line) {
if(!rtsp_st->dynamic_handler->parse_sdp_a_line(st, rtsp_st->dynamic_protocol_context, buf)) {
if(!rtsp_st->dynamic_handler->parse_sdp_a_line(s, i, rtsp_st->dynamic_protocol_context, buf)) {
sdp_parse_fmtp(st, p);
}
} else {
@ -535,7 +535,7 @@ static void sdp_parse_line(AVFormatContext *s, SDPParseState *s1,
rtsp_st = st->priv_data;
if (rtsp_st->sdp_payload_type == payload_type) {
if(rtsp_st->dynamic_handler && rtsp_st->dynamic_handler->parse_sdp_a_line) {
rtsp_st->dynamic_handler->parse_sdp_a_line(st, rtsp_st->dynamic_protocol_context, buf);
rtsp_st->dynamic_handler->parse_sdp_a_line(s, i, rtsp_st->dynamic_protocol_context, buf);
}
}
}
@ -553,7 +553,7 @@ static void sdp_parse_line(AVFormatContext *s, SDPParseState *s1,
rtsp_st = s->streams[s->nb_streams - 1]->priv_data;
if (rtsp_st->dynamic_handler &&
rtsp_st->dynamic_handler->parse_sdp_a_line)
rtsp_st->dynamic_handler->parse_sdp_a_line(s->streams[s->nb_streams - 1],
rtsp_st->dynamic_handler->parse_sdp_a_line(s, s->nb_streams - 1,
rtsp_st->dynamic_protocol_context, buf);
}
break;