Hi.
I used appsrc to write custom buffers to a file via filesink,
and transferred the file later via udp from the host machine to the client.
- appsrc is-live=true caps="video/mpeg,
mpegversion=(int)4, framerate=(fraction)1001/30000, width=(int)1280,
height=(int)720" ! filesink location=/opt/direct.m4v
- gst-launch-0.10 -v filesrc
location=direct.m4v ! mpeg4videoparse ! rtpmp4vpay ! udpsink
host=172.24.190.141 port=5000
- gst-launch-0.10 -v udpsrc
port=5000 caps="application/x-rtp, media=(string)video,
clock-rate=(int)90000, encoding-name=(string)MP4V-ES, profile-level-id=(string)1,
config=(string)000001010000012000845d4c294022d0a21f, payload=(int)96,
ssrc=(guint)1221059791, clock-base=(guint)2143939524,
seqnum-base=(guint)40996" ! rtpmp4vdepay ! filesink location=qaz.m4v
The transferred file is different from the original file by
the
Initial bytes: 18 byes
Final bytes: 5 bytes
The VLC displays packetizer_mpeg4video warning: waiting for VOL. Note the original file
(direct.m4v) played successfully.
So, why are the headers missing??? Is this
a bug in the rtpmp4vpay or the rtpmp4vdepay???
Note: the encoder used is hardware based (using
TI’s DM355).
Thanks.
Regards,
Neel.
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