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h264: Use max allowed max_num_ref_frames when using CPU decoding

This commit is contained in:
Feng Chen 2021-09-30 11:58:42 +08:00 committed by vonchenplus
parent 4baef7905e
commit ba8be75037
1 changed files with 6 additions and 1 deletions
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7
src/video_core/command_classes/codecs/h264.cpp
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@ -20,6 +20,8 @@
#include <array>
#include <bit>
#include "common/settings.h"
#include "video_core/command_classes/codecs/h264.h"
#include "video_core/gpu.h"
#include "video_core/memory_manager.h"
@ -96,7 +98,10 @@ const std::vector<u8>& H264::ComposeFrameHeader(const NvdecCommon::NvdecRegister
(context.h264_parameter_set.frame_mbs_only_flag ? 1 : 2);
// TODO (ameerj): Where do we get this number, it seems to be particular for each stream
writer.WriteUe(6); // Max number of reference frames
const auto nvdec_decoding = Settings::values.nvdec_emulation.GetValue();
const bool uses_gpu_decoding = nvdec_decoding == Settings::NvdecEmulation::GPU;
const u32 max_num_ref_frames = uses_gpu_decoding ? 6u : 16u;
writer.WriteUe(max_num_ref_frames);
writer.WriteBit(false);
writer.WriteUe(context.h264_parameter_set.pic_width_in_mbs - 1);
writer.WriteUe(pic_height - 1);