[FFmpeg-user] Combining Auto and Video filters with -filter_complex

Moritz Barsnick barsnick at gmx.net
Tue Jun 25 00:22:32 EEST 2019

On Mon, Jun 24, 2019 at 13:58:29 +0100, Stuart Foster via ffmpeg-user wrote:
> I am trying to produce a filter chain that effects both the auto and
> video components of my file:
> ffmpeg -i Test.mp4 -filter_complex \
> [0:v]eq=brightness=1.00:contrast=1.40,fade=type=in:duration=5:start_time=10,fade=type=out:duration=5:start_time=50[v];\
> [0:a]afade=type=in:duration=5:start_time=10,afade=type=out:duration=5:start_time=50[a]\
>  ?????? ??? -map[v] -map[a]\
   ^^^^^^ What are these question marks???
              ^^^^^^^ There needs to be a space between "-map" and
                      "[v]" or "[a]". You should also put "[v]" and "[a]"
                      in quotation marks.

> I can get the individual components to work but have failed miserably to
> successfully combine them.
> My efforts usually end with a "unconnected output" error.

Please show us an actual command line, and its complete, uncut console

> The example above is a simplification of what I hope to produce once I
> can get the audio and video components to work together.

Probably solved with my second remark regarding the space and
quotation. But please give us more info.


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