2009/9/10 <spopo...@yahoo.com.tw> > > > But when I streamed the H.264 file by unicsat method successfully , the > sprop-parameter-sets has been set “h264”. Therefore i think the > sprop-parameter-sets=h264 does't influence the stream when using multicast > method. Is it right? > > No, that's not right. For the decoder to understand your H.264 stream, it is crucial that the SPS/PPS info is communicated over a reliable protocol. If you are not sending in in the sprop-parameter-sets argument, how are you conveying it? Note that sending it in the actual stream is not recommended (see section 8.4 of RFC3984). Some people mistakenly think their Live555/H264 implementation "works," but really they're just conveying SPS/PPS info through the lossy RTP channel, which is strongly discouraged by the RFC:
The picture and sequence parameter set NALUs SHOULD NOT be transmitted in the RTP payload unless reliable transport is provided for RTP, as a loss of a parameter set of either type will likely prevent decoding of a considerable portion of the corresponding RTP stream. Thus, the transmission of parameter sets using a reliable session control protocol (i.e., usage of principle A or B above) is RECOMMENDED. Botton line: correctly populate sprop-parameter-sets; you are wasting your time by not doing this.
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