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I have the same issue. The transcoder example works for me, but an example of building a more complex graph would be great. |
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@anvlkv I put up a fix for this #156 that fixed the issue for me. |
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Hi, I’m trying to create a concat filter. But seems I’m doing something wrong. Or maybe its the avfilter_graph_parse_ptr?
create a concat filter which should accept 3x2 inputs
My validate call fails with: Output pad "default" with type audio of the filter instance "in_a_0" of abuffer not connected to any destination
I've tried using avfilter_graph_parse2 and adding all my sinks and buffers to the spec:
buffer=width=1280:height=720:pix_fmt=yuv420p:time_base=1/15360:sar=1[in_v_0];
abuffer=time_base=1/48000:sample_rate=48000:sample_fmt=fltp:channel_layout=0x3[in_a_0];
buffer=width=1280:height=720:pix_fmt=yuv420p:time_base=1/15360:sar=1[in_v_1];
abuffer=time_base=1/48000:sample_rate=48000:sample_fmt=fltp:channel_layout=0x3[in_a_1];
buffer=width=1280:height=720:pix_fmt=yuv420p:time_base=1/15360:sar=1[in_v_2];
abuffer=time_base=1/48000:sample_rate=48000:sample_fmt=fltp:channel_layout=0x3[in_a_2];
[in_v_0][in_a_0][in_v_1][in_a_1][in_v_2][in_a_2]concat=n=3:v=1:a=1[out_v][out_a];[out_v]buffersink;
[out_a]abuffersink
Which then fails with Input pad "default" with type video of the filter instance "out_v" of buffersink not connected to any source
I hope someone can point out what I’m doing so wrong.
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