The newest 14496-12 (4th edition corrected ver.) spec makes the definition
of terms around random access clear.
And the spec adds random access point grouping to signal closed or open
random access points.
14496-15 (AVC file format) spec already says sync sample table describes
only IDR-pictures for a long time.
This new sample grouping solves random access of H.264 stream in AVC file
format encoded with open GOP feature (recovery_frame_cnt == 0).
The patch I attached makes random access indicated by this sample grouping
possible.
NOTE: the attached patch supports only initial movie i.e. makes no sense
for subsequent movie fragments.
This sample grouping can also occur in track fragments.
0001-mov-Support-random-access-point-grouping.patch
Description: Binary data
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