I have solved this in my code by cacheing and inserting into the stream (using a filter).
The decoder always needs it and, as stated, some encoders do not(axis default,pelco), some do(gvi,samsung) and some it is a setting(axis) ________________________________ From: live-devel-boun...@ns.live555.com [live-devel-boun...@ns.live555.com] on behalf of Markus Schumann [mark...@sonicfoundry.com] Sent: Friday, April 26, 2013 3:02 PM To: LIVE555 Streaming Media - development & use Subject: Re: [Live-devel] testRTSPClient / H.264 Network Camera Stream I decode H.264 from a network camera. My decoder wants SPS/PPS once before the first I-frame in band delivered. So I wait until I get the first I-frame and then insert 0x0000001/SPS/0x0000001/PPS before the I-frame. Interestingly - one of the cameras I test with sends SPS/PPS inside the RTP stream – I drop those SPS/PPSs. But you are right – it’s decoder dependent. Markus. From: live-devel-boun...@ns.live555.com [mailto:live-devel-boun...@ns.live555.com] On Behalf Of Jeremiah Morrill Sent: Friday, April 26, 2013 2:23 PM To: LIVE555 Streaming Media - development & use Subject: Re: [Live-devel] testRTSPClient / H.264 Network Camera Stream After you parse the nal records from parseSPropParameterSets, store them. For each sample that comes through, construct the buffer you send to your upstream decoder like this: Where start_code is 4 bytes 0x00, 0x00, 0x00, 0x01 [start_code][NAL_record_1][start_code][NAL_record_2][start_code][sample_data] There may be some more correct way, but this has worked for me. Also some h264 decoders are different in how they except NAL units, so you may want to check with the documentation. -Jer This message and any attachments contain confidential and proprietary information, and may contain privileged information, belonging to one or more affiliates of Windy City Wire Cable & Technology Products, LLC. No privilege is waived by this transmission. Unauthorized use, copying or disclosure of such information is prohibited and may be unlawful. If you receive this message in error, please delete it from your system, destroy any printouts or copies of it, and notify the sender immediately by e-mail or phone.
_______________________________________________ live-devel mailing list live-devel@lists.live555.com http://lists.live555.com/mailman/listinfo/live-devel
