[FFmpeg-user] How to specify Audio bit depth for test sources?

[Basin Ilya]

Thank you.

On 02.03.2017 19:51, Carl Eugen Hoyos wrote:
> 2017-03-02 17:48 GMT+01:00 Carl Eugen Hoyos <ceffmpeg at gmail.com>:
>> 2017-03-02 16:24 GMT+01:00 Basin Ilya <basinilya at gmail.com>:
>>> Hi.
>>> Different test sources have different bit depth:
>>>
>>>     ffplay -f lavfi aevalsrc="0"
>>>     # Audio: pcm_f64le
>>
>> Output of the aevalsrc filter is AV_SAMPLE_FMT_DBLP.
>>
>>>     ffplay -f lavfi anullsrc
>>>     # Audio: pcm_u8
>>
>> Output of the anullsrc filter is AV_SAMPLE_FMT_U8
>>
>> If that is not what you need, you have to use the aformat filter.
> 
> Sorry, you have to use the aresample filter with the osf parameter.
> 
> See https://ffmpeg.org/ffmpeg-resampler.html
> 
> Carl Eugen
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