In ffmpeg streamingGuide, it writes:
ffmpeg -re -f lavfi -i aevalsrc="sin(400*2*PI*t)" -ar 8000 -f mulaw -f rtp rtp://127.0.0.1:1234 &
ffplay rtp://127.0.0.1:1234
I want to use a real video file to replace the artificial signal. Then I write the below at terminal A:
ffmpeg -re -i outputFile.avi -f mulaw -f rtp rtp://127.0.0.1:1234
it seems it is working: The frame information is counting. Here are information on the terminal A at the end:
frame= 309 fps= 29 q=31.0 Lsize= 931kB time=00:00:10.30 bitrate= 740.8kbits/s video:922kB audio:0kB subtitle:0 global headers:0kB muxing overhead 1.030813%
When the frame at terminal A is still counting (not finished), I type the below at terminal B:
ffplay rtp://127.0.0.1:1234
But it does not work: The error information is:
[udp @ 0x7fb370001500] bind failed: Address already in useB f=0/0
rtp://127.0.0.1:1234: Input/output error
Why?
[Update 1] Following the instruction from Camille Goudeseune
I used the foo.sdp
The input for the ffmpeg terminal is:
ffmpeg -re -i out.avi -f mulaw -f rtp rtp://127.0.0.1:1235
The terminal for ffplay is:
ffplay -i foo.sdp
The ffplay terminal shows a lot of error, without images.
libpostproc 52. 2.100 / 52. 2.100
[sdp @ 0x7fafdc0008c0] Undefined type (30) 0KB sq= 0B f=0/0
[sdp @ 0x7fafdc0008c0] nal size exceeds length: 25453 86 0B f=0/0
[sdp @ 0x7fafdc0008c0] Consumed more bytes than we got! (-25367)
[sdp @ 0x7fafdc0008c0] nal size exceeds length: 25453 86
[sdp @ 0x7fafdc0008c0] Consumed more bytes than we got! (-25367)
[sdp @ 0x7fafdc0008c0] Unhandled type (27) (See RFC for implementation details
[sdp @ 0x7fafdc0008c0] Undefined type (31) 0KB sq= 0B f=0/0
[sdp @ 0x7fafdc0008c0] Unhandled type (27) (See RFC for implementation details
[sdp @ 0x7fafdc0008c0] nal size exceeds length: 62414 6130B f=0/0
[sdp @ 0x7fafdc0008c0] Consumed more bytes than we got! (-61801)
[sdp @ 0x7fafdc0008c0] nal size exceeds length: 62414 613
[sdp @ 0x7fafdc0008c0] Consumed more bytes than we got! (-61801)
[h264 @ 0x7fafdc003020] non-existing PPS referencedq= 0B f=0/0
[h264 @ 0x7fafdc003020] non-existing PPS 0 referenced
[h264 @ 0x7fafdc003020] decode_slice_header error
[h264 @ 0x7fafdc003020] Invalid mix of idr and non-idr slices
[sdp @ 0x7fafdc0008c0] Undefined type (31) 0KB sq= 0B f=0/0
[sdp @ 0x7fafdc0008c0] Unhandled type (29) (See RFC for implementation details
[sdp @ 0x7fafdc0008c0] Unhandled type (26) (See RFC for implementation details
[sdp @ 0x7fafdc0008c0] Unhandled type (27) (See RFC for implementation details
Last message repeated 2 times 0KB vq= 0KB sq= 0B f=0/0
[sdp @ 0x7fafdc0008c0] Undefined type (31)
[sdp @ 0x7fafdc0008c0] Unhandled type (26) (See RFC for implementation details
[sdp @ 0x7fafdc0008c0] Unhandled type (25) (See RFC for implementation details
[h264 @ 0x7fafdc003020] insane cropping not completely supported, this could look slightly wrong ... (left: 2, top: 2)
[h264 @ 0x7fafdc003020] illegal aspect ratio
[h264 @ 0x7fafdc003020] missing picture in access unit with size 84589
[h264 @ 0x7fafdc003020] Partitioned H.264 support is incomplete
[h264 @ 0x7fafdc003020] insane cropping not completely supported, this could look slightly wrong ... (left: 2, top: 2)
[h264 @ 0x7fafdc003020] illegal aspect ratio
[h264 @ 0x7fafdc003020] insane cropping not completely supported, this could look slightly wrong ... (left: 2, top: 2)
[h264 @ 0x7fafdc003020] illegal aspect ratio
[h264 @ 0x7fafdc003020] no frame!
[h264 @ 0x7fafdc003020] RTP: missed 2563 packetsB sq= 0B f=0/0
[sdp @ 0x7fafdc0008c0] Undefined type (30)
Last message repeated 1 times
[sdp @ 0x7fafdc0008c0] Undefined type (31)