commit 4596c80251c8c66e2335ca01f56eba4621952dc7
author Dan Sanders <sandersd@chromium.org> Tue Apr 24 23:34:41 2018
committer Commit Bot <commit-bot@chromium.org> Tue Apr 24 23:34:41 2018
tree 4037f58968862602f469f24a320cf766765460d6
parent afbbed182ccff8c8ec1e58f610f985d2a0ec1082

[media] Add interface for VDAs to Decode() media::DecoderBuffers.

Using DecoderBuffer removes the need to provided SharedMemoryHandles in
cases that SharedMemory is not already allocated (in particular, when
VDAs are used through MojoVideoDecoder+VdaVideoDecoder). Since
base::SharedMemory is not an interface, a new type is required, and
DecoderBuffer already implements a suitable interface for this use case.

This CL adds:
  - A VideoDecodeAccelerator::Decode() overload for decoding
    DecoderBuffers, which VDAs may optionally implement.
    Note that VdaVideoDecoder will require this, and therefore all VDAs
    will be updated to support DecoderBuffers over time.
  - Support for SHM in DecoderBuffer. This eases the transition by
    allowing BitstreamBuffers to be easily converted to equivalent
    DecoderBuffers.
  - An implementation of the new VideoDecodeAccelerator::Decode()
    overload in VTVideoDecodeAccelerator.
  - Calling the new overload from VdaVideoDecoder.

Bug: 522298
Cq-Include-Trybots: luci.chromium.try:android_optional_gpu_tests_rel;luci.chromium.try:linux_optional_gpu_tests_rel;luci.chromium.try:mac_optional_gpu_tests_rel;luci.chromium.try:win_optional_gpu_tests_rel
Change-Id: Ib932c3524b37e339f592b150685937ea94d4199d
Reviewed-on: https://chromium-review.googlesource.com/1015965
Reviewed-by: Pawel Osciak <posciak@chromium.org>
Reviewed-by: Dale Curtis <dalecurtis@chromium.org>
Commit-Queue: Dan Sanders <sandersd@chromium.org>
Cr-Commit-Position: refs/heads/master@{#553364}