[FFmpeg-devel] [PATCH] mp4toannexb modification / improvement

Luca Abeni lucabe72
Fri Jun 4 11:15:12 CEST 2010

On 06/04/2010 08:22 AM, Luca Abeni wrote:
> On 06/03/2010 11:39 PM, Michael Niedermayer wrote:
> [...]
>>> Hence, I propose to modify / enhance this filter to return the
>>> converted extradata if no data is passed (that is, if buf_size
>>> is 0). The "regular" behaviour of the filter is not affected
>>> by this patch (the only difference is that if buf_size == 0 the
>>> filter returns the converted extradata instead of failing), and
>>> this patch allows to avoid a good amount of code duplication in
>>> sdp.c...
>>> Is the patch ok? If not, what is needed to make it acceptable?
>> why does the bsf not convert the extradata?
>> i mean it leaves the extradata in "AVC" syntax
> I do not know... My impression is that since the bsf "inlines"
> the SPS and PPS (inserting them in the bitstream) it does not care
> about converting the format of the extradata. But I am not sure;
> maybe Benoit can clarify this point?

BTW, if modifying the extradata is the right thing to do, I can provide
a patch doing so.


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