Robert Krüger <[email protected]> added the comment:
because I output the value of sei_recovery_frame_cnt for every slice in the file
and it is always -1.
Looking at h264.h:
/**
* recovery_frame_cnt from SEI message
*
* Set to -1 if no recovery point SEI message found or to number of frames
* before playback synchronizes. Frames having recovery point are key
* frames.
*/
int sei_recovery_frame_cnt;
if I interprete the comment correctly, key_frame should be set if a recovery
point SEI were there.
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