Hello,
I've been working on a clean suite of FFV1 tests, and it seems that the
Libav's code still considers FFV1 version 3 as experimental, although
Version 3 was officially marked as released at the end of August 2013.
I have verified it with the current git head:
---------------------------
$ ./avconv -i fate-suite/prores/prores4444_with_transparency.mov -an
-c:v ffv1 -level 3 delme.avi
---------------------------
Returns the following:
---------------------------
avconv version v9-2433-g5928b29, Copyright (c) 2000-2013 the Libav
developers
built on Nov 2 2013 18:47:37 with gcc 4.6 (Ubuntu/Linaro 4.6.3-1ubuntu5)
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x25b9800] Could not find codec parameters
(Data: tmcd / 0x64636D74, 0 kb/s)
Guessed Channel Layout for Input Stream #0.1 : stereo
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from
'fate-suite/prores/prores4444_with_transparency.mov':
Metadata:
major_brand : qt
minor_version : 537199360
compatible_brands: qt
creation_time : 2012-09-12 08:48:56
Duration: 00:00:00.04, start: 0.000000, bitrate: 43461 kb/s
Stream #0.0(eng): Video: prores, yuva444p10le, 1920x1080, 40697
kb/s, PAR 1:1 DAR 16:9, 25 fps, 25 tbn (default)
Metadata:
creation_time : 2012-09-12 08:48:56
Stream #0.1(eng): Audio: pcm_s16le, 48000 Hz, stereo, s16, 1536 kb/s
(default)
Metadata:
creation_time : 2012-09-12 08:48:56
Stream #0.2(eng): Data: tmcd / 0x64636D74, 0 kb/s (default)
Metadata:
creation_time : 2012-09-12 08:48:57
[ffv1 @ 0x25c05c0] Version 3 requested, please set -strict experimental
in order to enable it
Output #0, avi, to 'delme.avi':
Metadata:
major_brand : qt
minor_version : 537199360
compatible_brands: qt
creation_time : 2012-09-12 08:48:56
Stream #0.0(eng): Video: ffv1, yuv420p, 1920x1080 [PAR 1:1 DAR
16:9], q=2-31, 200 kb/s, 90k tbn, 25 tbc (default)
Metadata:
creation_time : 2012-09-12 08:48:56
Stream mapping:
Stream #0:0 -> #0:0 (prores -> ffv1)
Error while opening encoder for output stream #0:0 - maybe incorrect
parameters such as bit_rate, rate, width or height
---------------------------
I've created ticket #581 for this:
https://bugzilla.libav.org/show_bug.cgi?id=581
Thank you very much in advance,
Pb
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