[FFmpeg-devel] [RFC]lavc/adpcm: Support baby monitor adpcm_ms

[Paul B Mahol]

On 5/3/16, Carl Eugen Hoyos <cehoyos at ag.or.at> wrote:
> Paul B Mahol <onemda <at> gmail.com> writes:
>
>> >> > So how should this be implemented?
>> >>
>> >> Perhaps predictor, if too big should be just clipped.
>> >
>> > Why do you think there is a too big predictor?
>> > Two additional bytes are inserted at the beginning of
>> > every frame.
>> > Should the demuxer be patched instead?
>>
>> Why you think that?
>
> (You mean that there are two additional bytes?)
> Because if I remove the two additional bytes that
> the encoder adds for each audio stream, the file
> decodes as expected.
>
>> There is clearly overread if you ignore
>> first two bytes.
>
> How can I reproduce the overread?
>

By decoding file, looking at ffmpeg output.

> Carl Eugen
>
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