[FFmpeg-user] ffmpeg encoding

Maziar Mehrabi mmehrabi at abo.fi
Thu Sep 25 07:38:54 CEST 2014


Hi,

Could you be more specific? Why it didn't work? Can you provide us with
some error log, or the output of ffmpeg?

Thank you,
Maziar


--
Hälsningar,
Maziar Mehrabi

On Wed, Sep 24, 2014 at 7:43 PM, Maria De Los Angeles Quintero <
maquintero at planetife.us> wrote:

> Hi!!
>
> I need to encode an specific mp4, i have been trying with the ffmpeg, but
> i couldnt make it, if you could help me with these would be great.
> The encoding requirements are these:
>
> Mpeg4-h.264
>
> Main profile Level 3.0
>
>
> Set CABAC for Main profile
>
> Constant bit rate encoding
>
> 1.5-2.0 Mb´s  resolution
>
> Closed GOP must be set
>
> GOP size shall be equal to 1/2 second, with the following exceptions:
>
>       -Utilizing GOP size less than 1/2 second is acceptable and shall be
> used for       scene change detection.
>
> Every I-frame must be in IDR- IDR Frecuency shall be set to 1
>
> Streaming format is required e.g SPS and other secuence headers shall be
> repeated throughout the stream to facilitate fast decoder synchronization
> during random acces.
>
> B-Frames shall be used when main profile is chosen
>
> No referenced B-frames
>
> Number of B-Frames shall be set to 2 or 3
>
> Number of referenced frames shall be set to 2
>
> Encode without wight prediction
>
> Number of slices shall be set to 1,2 or 4
>
> Deblocking filter shall be enable
>
> 720x480 NTSC
>
> Thanks you so much!!!
>
>
>
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