[Live-devel] Question about streaming a H.264 video file via RTP

[Jeremy Noring]

On Thu, Sep 17, 2009 at 12:13 AM, 12091637 <12091637 at qq.com> wrote:
> Dear all,
> I am working with live555 library for H.264 video file streaming via RTP.
> When I creat "ByteStreamFileSource" instance to stream *.h264 video file,
> how can I set
> "PlayTimePerFrame" and "preferredFrameSize" value?How to get the
> "preferredFrameSize" and
> "playTimePerFrame" parameters base on existing *.h264 file? How to calculate
> them from the information of *.h264 file.
> If I set the two parameters to zero, my stream will be incompatible with
> existing, standards-compliant clients (e.g., VLC,MPlayer).
> Sometimes VLC will crash when play my stream(
> rtsp://192.168.10.62/test.h264)


To get the preferredFrameSize value, you'll have to parse the h264
bytestream; read the H.264 standard to figure out how to do this
(you'll likely need to read the standard to get your streaming working
anyway).

You cannot get "playTimePerFrame" from a ".h264" file because raw h264
byte streams contain no timing information (H.264 encoders themselves
have no notion of time, only successive frames).