[Libav-user] SMPTE 336m

[Markus Pfundstein]

Maybe you could while you are at it :-)

On 10 Sep 2014, at 16:52, Ran Shalit <ranshalit at gmail.com> wrote:

> On Wed, Sep 10, 2014 at 4:15 PM, Peter Ross <pross at xvid.org> wrote:
>> On Wed, Sep 10, 2014 at 03:11:25PM +0300, Ran Shalit wrote:
>>> On Wed, Sep 10, 2014 at 2:44 PM, Peter Ross <pross at xvid.org> wrote:
>>>> On Tue, Sep 09, 2014 at 04:23:24PM +0300, Ran Shalit wrote:
>>>>>>> Are these internal KLV packets sent only
>>>>>>> once at the start of transcoding or can be sent during transcoding
>>>>>>> more than once ?
>>>>> 
>>>>>> In MXF each *video frame* is stored within an individual KLV packet.
>>>>>> So yes, 'more than once'!
>>>>> 
>>>>> Is it possible to retrieve or view the KLV metadata in ffplay ? i.e. I
>>>>> want to do some validation check on KLV with XMF, is that possible ?
>>>> 
>>>> Nothing like that is implemented in ffplay.
>>>> 
>>>> -- Peter
>>>> (A907 E02F A6E5 0CD2 34CD 20D2 6760 79C5 AC40 DD6B)
>>> 
>>> Hi Peter,
>>> 
>>> Is there any way I can validate that the packets include KLV metadata ?
>> 
>> Nothing like that is implemented in FFmpeg.
>> 
>> You need find a proper MXF validation tool. I can't recommend any, but searching
>> the web for 'MXF validator' or 'MXF analyser' returns a lot of hits.
>> 
>>> Or is the only way to do it is by debugging/printing of ffmpeg MXF mux
>>> with KLV ,and demux on MXF video with supposed KLV info.
>> 
>> That approach might work. Good luck.
>> 
>> -- Peter
>> (A907 E02F A6E5 0CD2 34CD 20D2 6760 79C5 AC40 DD6B)
> 
> Ok, Thanks, I'll go on from this point.
> I hope ffmpeg developers will add KLV capabilities to ffmpeg in the future.
> 
> Thanks a lot. Ran
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