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Commit Graph

6 Commits

Author SHA1 Message Date
Mark Thompson
1fe77d4a63 cbs: Ensure that reference fields always follow the associated pointer
Having these together allows us to find both pointers given the address
of only one of them.
2020-09-02 00:00:50 +01:00
Andreas Rheinhardt
7c92eaace2 avcodec/cbs: Factor out common code for writing units
All cbs-functions to write units share a common pattern:
1. They check whether they have a write buffer (that is used to store
the unit's data until the needed size becomes known after writing the
unit when a dedicated buffer will be allocated).
2. They use this buffer for a PutBitContext.
3. The (codec-specific) writing takes place through the PutBitContext.
4. The return value is checked. AVERROR(ENOSPC) here always indicates
that the buffer was too small and leads to a reallocation of said
buffer.
5. The final buffer will be allocated and the data copied.

This commit factors this common code out in a single function in cbs.c.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2019-11-17 23:31:44 +00:00
James Almer
7aaf092f8c avcodec/cbs_vp9: store profile in the private context
Derived from profile_low_bit and profile_high_bit.

Signed-off-by: James Almer <jamrial@gmail.com>
2018-10-30 20:55:44 -03:00
James Almer
ec440339b2 avcodec/cbs_vp9: keep track of reference frames
Signed-off-by: James Almer <jamrial@gmail.com>
2018-10-30 20:54:08 -03:00
Mark Thompson
edcdf35123 cbs_vp9: Ensure that reserved zero bits are actually zero 2018-10-30 22:22:27 +00:00
Mark Thompson
b5df289eb7 lavc: Add coded bitstream read/write support for VP9 2018-05-02 01:21:33 +01:00