gst-launch received rtsp raw h264 file are not smooth when playing.

[eschanti]

Dears,

I use such command to receive rtsp stream and save to h264 format file,

gst-launch-1.0 -e rtspsrc location=rtsp://user:passwd@10.10.0.3:554 ! queue
! "application/x-rtp,media=video" !  rtph264depay ! "video/x-h264,
stream-format=byte-stream" ! filesink location=test.264

When I play it in vlc, it's not smooth, seems like play one frame, pause
several seconds, and play another.

Then I use
ffmpeg -f h264 -i test.h264 -vcodec copy test.mp4
to get the mp4 file and then play, it's ok, very smooth.

I am wondering how to get the smoothly playable .h264 file?

Thanks very much!



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[Nicolas Dufresne-5]

Le sam. 18 août 2018 07:26, eschanti <[hidden email]> a écrit :

Dears,

I use such command to receive rtsp stream and save to h264 format file,

gst-launch-1.0 -e rtspsrc location=rtsp://user:passwd@10.10.0.3:554 ! queue
! "application/x-rtp,media=video" !  rtph264depay ! "video/x-h264,
stream-format=byte-stream" ! filesink location=test.264

When I play it in vlc, it's not smooth, seems like play one frame, pause
several seconds, and play another.

Then I use
ffmpeg -f h264 -i test.h264 -vcodec copy test.mp4
to get the mp4 file and then play, it's ok, very smooth.

I am wondering how to get the smoothly playable .h264 file?

Adding a container, like ISOMP4 in your test is the right way. The container adds the time information needed to smoothly render a video.

Thanks very much!



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[eschanti]

Ok，but my further question is how to directly play the rtsp stream with one
pipeline.

actually we have self developed plugins:
 /! myh264dec ! queue ! myvideiorawplaysink/
which do h264 decode, and video/x-raw playback.

and command
gst-launch-1.0  filesrc location=./demo.h264  ! video/x-h264, level=4  !
h264parse /! myh264dec ! queue ! myvideiorawplaysink/
works,

but when I replace the src to rtspsrc, as following command, it only plays
for the first several seconds and stuck

gst-launch-1.0 -e rtspsrc location=rtsp://user:passwd@10.10.0.3:554 ! queue
! "application/x-rtp,media=video" !  rtph264depay ! "video/x-h264,
stream-format=byte-stream" /! myh264dec ! queue ! myvideiorawplaysink/

Any hints?




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[Nicolas Dufresne-5]

Le lun. 20 août 2018 16:33, eschanti <[hidden email]> a écrit :

Ok，but my further question is how to directly play the rtsp stream with one
pipeline.

playbin uri=rtsp://...

actually we have self developed plugins:
 /! myh264dec ! queue ! myvideiorawplaysink/
which do h264 decode, and video/x-raw playback.

and command
gst-launch-1.0  filesrc location=./demo.h264  ! video/x-h264, level=4  !
h264parse /! myh264dec ! queue ! myvideiorawplaysink/
works,

but when I replace the src to rtspsrc, as following command, it only plays
for the first several seconds and stuck

gst-launch-1.0 -e rtspsrc location=rtsp://user:passwd@10.10.0.3:554 ! queue
! "application/x-rtp,media=video" !  rtph264depay ! "video/x-h264,
stream-format=byte-stream" /! myh264dec ! queue ! myvideiorawplaysink/

Any hints?

Any warning ? GST_DEBUG=3 Does adding h264parse helps ?

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[eschanti]

playbin uri=rtsp://...  works
but
playbin uri=rtsp://...  vedio-sink="myvideiorawplaysink/"  not smooth
either,
does it indicate myvideiorawplaysink has some issue?


GST_DEBUG=3
just one more INFO:
0:00:00.304302171  2372   0x7f8404b280 FIXME                default
gstutils.c:3766:gst_pad_create_stream_id_internal:<fakesrc0:src> Creating
random stream-id, consider implementing a deterministic way of creating a
stream-id

and I change to GST_DEBUG=5,
after the frame stuck, there are many messages such as:
0:00:09.695598476  2389   0x7f6c002590 DEBUG        rtpjitterbuffer
gstrtpjitterbuffer.c:3464:wait_next_timeout:<rtpjitterbuffer0> now
0:00:08.836617657

is that relevant?



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