split and filter hang

[Dave Bevan]

The following starts ok, but hangs/consumes 100% of 1 core with no progress reported. Eventually killed via ctrl-z.

$ ffmbc -i 1080x1920\ 25fps\ Filmic\ Pro.mov -t 5 -vf " split [v1] [v2] ; [v1] scale=1440:1080,boxblur=min(h\,w)/20:1:min(cw\,ch)/20:1 [bg] ; [v2] scale=456:1080:interl=-1 [fg] ; [bg] [fg] overlay=492:0 [out]" -vcodec dvvideo -pix_fmt yuv422p -aspect 16:9 -tff -f mxf -y test-002.mxf

FFmbc version 0.7

Copyright (c) 2008-2014 Baptiste Coudurier and the FFmpeg developers

Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '1080x1920 25fps Filmic Pro.mov':

  Metadata:

    major_brand: qt  

    minor_version: 0

    compatible_brands: qt  

    com.apple.quicktime.publisher: ISO: 23.2695

    com.apple.quicktime.software: Created with FiLMiC Pro 5.4.1 build 444

  Duration: 00:00:26.95, bitrate: 76278 kb/s

    Stream #0.0(und): Video: h264 (High), yuv420p, 1080x1920p, 75804 kb/s, PAR 1:1 DAR 9:16, 25.00 fps

    Metadata:

      codec_name: H.264

    Stream #0.1(und): Audio: alac, 48000 Hz, 2 channels, s16, 451 kb/s

[scale @ 0x2f0ea00] w:1080 h:1920 fmt:yuv420p -> w:1440 h:1080 fmt:yuv420p flags:0x4 il:0

[boxblur @ 0x2f0f2c0] luma_radius:54 luma_power:1 chroma_radius:27 chroma_power:1 alpha_radius:54 alpha_power:1 w:1440 chroma_w:720 h:1080 chroma_h:540

[scale @ 0x2f0fbe0] w:1080 h:1920 fmt:yuv420p -> w:456 h:1080 fmt:yuva420p flags:0x4 il:-1

[overlay @ 0x2f105c0] main w:1440 h:1080 fmt:yuv420p overlay x:492 y:0 w:456 h:1080 fmt:yuva420p

[scale @ 0x2f125e0] w:1440 h:1080 fmt:yuv420p -> w:1440 h:1080 fmt:yuv422p flags:0x4 il:0

Output #0, mxf, to '/var/bigpool/JEXCache/test-results/test-002.mxf':

  Metadata:

    encoder: FFmbc 0.7

    Stream #0.0(und): Video: dvvideo, yuv422p, 1440x1080i tff [PAR 4:3 DAR 16:9], 115200 kb/s, 25.00 fps

    Stream #0.1(und): Audio: pcm_s16le, 48000 Hz, 2 channels, s16, 1536 kb/s

Stream mapping:

  Stream #0.0 -> #0.0

  Stream #0.1 -> #0.1

Press [q] to stop, [?] for help

adding 762 audio samples in stream #0.1

Killed

If I execute just the 1st filter (i.e. scale+boxblur, no split, no overlay), things do progress successfully.

Ubuntu 12.04, 64bit, 12GB ram.

Any ideas? I can supply the source clip if requested.

--d

[Baptiste Coudurier]

Thanks for the report, I'm on it !

Baptiste COUDURIER

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