[FFmpeg-user] How can I solve multiple audio + video mixing and overlay problem

Jeromy jhwang81 at nate.com
Thu Apr 9 04:31:50 CEST 2015


Oh Thanks.

I modified it.

But problem is occued.

command line:
./ffmpeg -i multimedia_sample/audio/1.amr -i multimedia_sample/audio/2.amr
-i multimedia_sample/audio/3.amr -i multimedia_sample/audio/4.amr -i
multimedia_sample/audio/5.amr -i multimedia_sample/audio/6.amr -i
multimedia_sample/video/1_1.mp4 -i multimedia_sample/video/2_1.mp4 -i
multimedia_sample/video/3_1.mp4 -i multimedia_sample/video/4_1.mp4 -i
multimedia_sample/video/5_1.mp4 -i multimedia_sample/video/6_1.mp4
-filter_complex
"amix=inputs=6:duration=longest:dropout_transition=6,asplit=2[a1][a2],nullsrc=s=1280x720[base];split=2[iv1][iv2];[iv1][base]overlay=0:0[mid1];[iv2][mid1]overlay=0:0[mid2];[iv3][mid2]overlay=0:0[mid3];[iv4][mid3]overlay=0:0[mid4];[iv5][mid4]overlay=0:0[mid5];[iv6][mid5]overlay=0:0[mid6];[0:v]scale=426x360[iv0];[1:v]scale=426x360[iv1];[2:v]scale=426x360[iv2];[3:v]scale=426x360[iv3];[4:v]scale=426x360[iv4];[5:v]scale=426x360[iv5];[base][iv0]overlay=1[tmp0];[tmp0][iv1]overlay=1:x=426[tmp1];[tmp1][iv2]overlay=1:x=852[tmp2];[tmp2][iv3]overlay=1:y=360[tmp3];[tmp3][iv4]overlay=1:x=426:y=360[tmp4];[tmp4][iv5]overlay=1:x=852:y=360[tmp5]"
-map [a1] c:a mp3 -f rtp -y rtp://111.111.111.111:11111 -map [a2] c:a mp3 -f
rtp -y rtp://222.222.222.222:22222 -map [v1] c:a libx264 -f rtp -y
rtp://333.333.333.333:33333 -map [v2] c:a libx264 -f rtp -y
rtp://444.444.444.444:44444

and then.
Stream specifier 'iv6' in filtergraph description
amix=inputs=6:duration=longest:dropout_transition=6,asplit=2[a1][a2],nullsrc=s=1280x720[base];split=2[iv1][iv2];[iv1][base]overlay=0:0[mid1];[iv2][mid1]overlay=0:0[mid2];[iv3][mid2]overlay=0:0[mid3];[iv4][mid3]overlay=0:0[mid4];[iv5][mid4]overlay=0:0[mid5];[iv6][mid5]overlay=0:0[mid6];[0:v]scale=426x360[iv0];[1:v]scale=426x360[iv1];[2:v]scale=426x360[iv2];[3:v]scale=426x360[iv3];[4:v]scale=426x360[iv4];[5:v]scale=426x360[iv5];[base][iv0]overlay=1[tmp0];[tmp0][iv1]overlay=1:x=426[tmp1];[tmp1][iv2]overlay=1:x=852[tmp2];[tmp2][iv3]overlay=1:y=360[tmp3];[tmp3][iv4]overlay=1:x=426:y=360[tmp4];[tmp4][iv5]overlay=1:x=852:y=360[tmp5]
matches no streams.

maybe it`s command problem.
but I don`t know... what is wrong...
Please let me know that is the problem... 

Jeromy.



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