[Live-devel] H.264 RTSP Streaming with QuickTime

[Jeremy Noring]

I've gotten about as far.  I don't get any green video, but QT does
determine my video width and height and start streaming.  I haven't managed
to figure out anything beyond that, but admittedly I haven't looked into it
for a few weeks.

On Thu, May 7, 2009 at 10:17 AM, Ganesh V <ganesh_vijayan at yahoo.com> wrote:

> I got H.264 Streaming working with Quicktime. While preparing the
> sprop_parameter_sets as shown below, I shouldn't have been including the
> NALU start code which was the problem.
>
> Currently, quicktime is able to identify the incoming stream and is able to
> set it's window width and height. However, I observe a green screen and
> unable to view the video. Has anyone faced this issue before and solved the
> same?
>
> Thanks.
>
> ------------------------------
> *From:* Ganesh V <ganesh_vijayan at yahoo.com>
> *To:* live-devel at ns.live555.com
> *Sent:* Wednesday, May 6, 2009 9:28:56 PM
> *Subject:* [Live-devel] H.264 RTSP Streaming with QuickTime
>
> Dear Experts,
>
> Currently, I am trying to achieve generic RTSP H.264 Streaming
> functionality based on Livemedia. Based on the available literature, I
> figured that my application needs to generate sprop-parameter-sets for SDP.
> From livemedia sources, I observed that in H264VideoRTPSink (constructor)
> fFmtpSDPLine which contains the requisite information is generated. The
> pseudo-code of my application is as shown below:
>
>     strcpy(sprop_parameter_sets,base64Encode(sps, length_of_sps);
>     len = strlen(sprop_parameter_sets);
>     sprop_parameter_sets[len] = ',';
>     strcpy(sprop_parameter_sets+len+1, base64Encode(pps, length_of_pps));
>
>     H264VideoRTPSink::createNew(envir(), rtpGroupsock,
> rtpPayloadTypeIfDynamic, p_context->profile_level_id, (const char*)
> sprop_parameter_sets);
>
> With these changes, I am able to stream data from my application. This RTSP
> stream is successfully decoded and displayed by VLC player, which works
> without any issues. When I try to play this stream with Quick Time, the
> session is setup and the player reports "Negotiating, Buffering .." and
> finally, shows that QT is playing the stream, wherein the time counter is
> increment. However, there is no video displayed on the QT screen. The window
> is also not resized to the actual size of the stream and remains at the
> default size of the window. When I check the movie info, I observe that
> width, height and frame rate information is missing.
>
> I am able to get MPEG4 streaming working without any issues with QT, but
> facing this issue with H.264. Has anyone tried H.264 RTSP streaming with QT
> prior and was successfully able to display a H.264 stream? Am I doing some
> mistake in my logic in invoking H264VideoRTPSink or have I missed some other
> initialization?
>
> Many thanks in advance for your help.
> Ganesh
>
>
>
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>
>


-- 
Where are we going?
And why am I in this hand-basket?
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