[FFmpeg-devel] [PATCH] H.264 timestamps

[Ivan Schreter]

Hi,

Ivan Schreter wrote:
> attached three patches to get/compute some timestamp-relevant 
> information from H.264 streams as a prerequisite for correct H.264 
> timestamp computation (comes later).
>
I've now finished the code for computation of PTS/DTS for H.264 
correctly (according to H.264 standard). I'll post the timestamp code 
later (it is not as complex as I thought), as it requires parser patch, 
which has to be cleaned up and reviewed first (there are still some 
deficiencies).

However, here is now the full set of prerequisites needed to compute 
timestamps correctly:

#1: field_pic_flag
#2: initial_cpb_removal_delay_length
#3: dpb_output_delay in picture timing SEI
#4: cpb_removal_delay in picture timing SEI
#5: cpb_cnt from header
#6: store SPS in context after decoding it as default SPS (otherwise SEI 
buffering period cannot be parsed correctly)
#7: decode SEI buffering period

Please review.

Note: The patches can only be applied in the given order, as they are 
mostly depending on each other.

Regards,

Ivan

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