Convert the input audio format to the specified formats.

The filter accepts a string of the form: "sample_format:channel_layout:packing_format".

sample_format specifies the sample format, and can be a string or the corresponding numeric value defined in libavutil/samplefmt.h.

channel_layout specifies the channel layout, and can be a string or the corresponding number value defined in libavutil/audioconvert.h.

packing_format specifies the type of packing in output, can be one of "planar" or "packed", or the corresponding numeric values "0" or "1".

The special parameter "auto", signifies that the filter will automatically select the output format depending on the output filter.

Some examples follow.

• Convert input to unsigned 8-bit, stereo, packed:

  aconvert=u8:stereo:packed

• Convert input to unsigned 8-bit, automatically select out channel layout and packing format:

  aconvert=u8:auto:auto