[FFmpeg-user] rotation of video from android_camera

[Juha Heinanen]

Juha Heinanen via ffmpeg-user writes:

> If android_camera device would rotate the video clockwise by that
> amount (270), orientation of the video would be correct.  There is this
> in android_camera.c:
> 
>   av_display_rotation_set(display_matrix, ctx->sensor_orientation);
> 
>   if (ctx->lens_facing == ACAMERA_LENS_FACING_FRONT) {
>       av_display_matrix_flip(display_matrix, 1, 0);
>   }

I tried with back camera (where the above flip call is not executed) and
now android_camera sent the video with 270 degree clockwise orientation.

This is with ffmpeg version 4.2.2.

-- Juha