[FFmpeg-user] pixelated video after inserting a logo

[Rossana Guerra]

Finally worked in an aceptable way, with a very good resolution.


ffmpeg -i video1.avi -vf "movie=md.png [logo]; [in][logo]
overlay=W-w-10:10[out]"  -b 1400k outprueba.avi

Even the result is ok, I got this message.
Press ctrl-c to stop encoding
[mp3 @ 0x7e8c00] incomplete frame293576kB time=1398.36
bitrate=1719.9kbits/s

Is there a crucial issue I will be aware of?


I'va also tryed with -vcode libx265, but after encoding it misses some
frames.  The final video last less minutes than the original.
I guess it could be something with a wrong frame econding or  something
like that..

Thanks a lot for your help.

Rossana



2012/5/20 Rossana Guerra <guerra.rossana at gmail.com>

> Thanks Stefano, I'll try what you suggested.
>
> Regards
>
> Rossana
>
>
> 2012/5/20 Stefano Sabatini <stefasab at gmail.com>
>
>> On date Saturday 2012-05-19 19:20:33 -0300, Rossana Guerra encoded:
>> > Hi, well I did what you suggested, but it didn't improve the result so
>> much.
>> >
>> > First I found out the codec: ffmpeg -i video1.avi
>> >
>> > Seems stream 0 codec frame rate differs from container frame rate:
>> 30000.00
>> > (30000/1) -> 23.98 (24000/1001)
>> > Input #0, avi, from 'video1.avi':
>> >   Metadata:
>> >     encoder         : VirtualDubMod 1.5.10.1 (build 2366/release)
>> >   Duration: 00:23:18.52, start: 0.000000, bitrate: 1308 kb/s
>> >     Stream #0.0: Video: mpeg4, yuv420p, 720x400 [PAR 1:1 DAR 9:5], 23.98
>> > fps, 23.98 tbr, 23.98 tbn, 30k tbc
>> >     Stream #0.1: Audio: mp3, 44100 Hz, stereo, s16, 128 kb/s
>> >
>> > And then I applied the codec and bitrate:
>> >
>>
>> > ffmpeg -i video1.avi -vf "movie=md.png [logo]; [in][logo]
>> > overlay=W-w-10:10[out]" -vcodec mpeg4 -b 1400 out1.avi
>>
>> Value for -b is expressed in *bits per seconds*, so 1400 is
>> definitively low, use -b 1400k instead.
>>
>> Also you may try the libx264 encoder (mpeg4 is the default choice for
>> the AVI container, so no need to explicitely specify it).
>> --
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