[FFmpeg-user] FFMPEG H.264 video not playing on some devices

ffmpeg at jrbtechnical.com ffmpeg at jrbtechnical.com
Tue Aug 21 21:06:20 CEST 2012


Thank you for your response.

I have tried other resolutions as well as levels 4 and 4.1 as well. The
version I posted just happened to be the 1 to 1 version, keeping things
the same resolution as the image set being converted to a movie.

I see you also quoted the DPB size line.  If that is also a possible part
of the problem, how does one keep the DPB size from going over the level
limit?  I looked around a bit and see some references to turning off
bpyramid by adding the "-flags2 -bpyramid" option, but that didn't seem


> On 2012-08-21 15:36, ffmpeg at jrbtechnical.com wrote:
>> [libx264 @ 0x2763620] DPB size (16 frames, 13332480 bytes) > level limit
>> (15 frames, 12582912 bytes)
>> I am not sure if that is what is throwing things off or not.  The
>> manufacture only says the following about H.264:
>> H.264 (MPEG-4, Part 10)
>> AAC audio supported with H.264 files
>> Main or High Profile up to level 4.1
>> CBR audio (vbr not supported)
>> Maximum bit rate recommended is 25Mbps
>> Maximum video resolution supported is 1920x1080p (progressive)
>> I am meeting all the requirements they list, but of course there are
>> other
>> video options for H.264 that are not discussed.
> Perhaps you should heed the warning libx264 printed because as it stands
> the limitation of level 4.1 is not being met.  Have you also tried
> resizing to a "standard" resolution of 720x480, 720x576, 1280x720 or
> 1920x1080?
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