diff options
Diffstat (limited to 'src/video_core/command_classes/codecs')
| -rw-r--r-- | src/video_core/command_classes/codecs/codec.cpp | 224 | ||||
| -rw-r--r-- | src/video_core/command_classes/codecs/codec.h | 10 | ||||
| -rw-r--r-- | src/video_core/command_classes/codecs/h264.cpp | 3 | ||||
| -rw-r--r-- | src/video_core/command_classes/codecs/vp9.cpp | 1 | ||||
| -rw-r--r-- | src/video_core/command_classes/codecs/vp9_types.h | 85 |
5 files changed, 172 insertions, 151 deletions
diff --git a/src/video_core/command_classes/codecs/codec.cpp b/src/video_core/command_classes/codecs/codec.cpp index f798a0053..61966cbfe 100644 --- a/src/video_core/command_classes/codecs/codec.cpp +++ b/src/video_core/command_classes/codecs/codec.cpp @@ -5,6 +5,7 @@ #include <fstream> #include <vector> #include "common/assert.h" +#include "common/settings.h" #include "video_core/command_classes/codecs/codec.h" #include "video_core/command_classes/codecs/h264.h" #include "video_core/command_classes/codecs/vp9.h" @@ -16,108 +17,146 @@ extern "C" { } namespace Tegra { -#if defined(LIBVA_FOUND) -// Hardware acceleration code from FFmpeg/doc/examples/hw_decode.c originally under MIT license namespace { -constexpr std::array<const char*, 2> VAAPI_DRIVERS = { - "i915", - "amdgpu", -}; +constexpr AVPixelFormat PREFERRED_GPU_FMT = AV_PIX_FMT_NV12; +constexpr AVPixelFormat PREFERRED_CPU_FMT = AV_PIX_FMT_YUV420P; + +void AVPacketDeleter(AVPacket* ptr) { + av_packet_free(&ptr); +} -AVPixelFormat GetHwFormat(AVCodecContext*, const AVPixelFormat* pix_fmts) { +using AVPacketPtr = std::unique_ptr<AVPacket, decltype(&AVPacketDeleter)>; + +AVPixelFormat GetGpuFormat(AVCodecContext* av_codec_ctx, const AVPixelFormat* pix_fmts) { for (const AVPixelFormat* p = pix_fmts; *p != AV_PIX_FMT_NONE; ++p) { - if (*p == AV_PIX_FMT_VAAPI) { - return AV_PIX_FMT_VAAPI; + if (*p == av_codec_ctx->pix_fmt) { + return av_codec_ctx->pix_fmt; } } LOG_INFO(Service_NVDRV, "Could not find compatible GPU AV format, falling back to CPU"); - return *pix_fmts; + av_buffer_unref(&av_codec_ctx->hw_device_ctx); + av_codec_ctx->pix_fmt = PREFERRED_CPU_FMT; + return PREFERRED_CPU_FMT; +} +} // namespace + +void AVFrameDeleter(AVFrame* ptr) { + av_frame_free(&ptr); } -bool CreateVaapiHwdevice(AVBufferRef** av_hw_device) { +Codec::Codec(GPU& gpu_, const NvdecCommon::NvdecRegisters& regs) + : gpu(gpu_), state{regs}, h264_decoder(std::make_unique<Decoder::H264>(gpu)), + vp9_decoder(std::make_unique<Decoder::VP9>(gpu)) {} + +Codec::~Codec() { + if (!initialized) { + return; + } + // Free libav memory + avcodec_free_context(&av_codec_ctx); + av_buffer_unref(&av_gpu_decoder); +} + +bool Codec::CreateGpuAvDevice() { +#if defined(LIBVA_FOUND) + static constexpr std::array<const char*, 3> VAAPI_DRIVERS = { + "i915", + "iHD", + "amdgpu", + }; AVDictionary* hwdevice_options = nullptr; av_dict_set(&hwdevice_options, "connection_type", "drm", 0); for (const auto& driver : VAAPI_DRIVERS) { av_dict_set(&hwdevice_options, "kernel_driver", driver, 0); - const int hwdevice_error = av_hwdevice_ctx_create(av_hw_device, AV_HWDEVICE_TYPE_VAAPI, + const int hwdevice_error = av_hwdevice_ctx_create(&av_gpu_decoder, AV_HWDEVICE_TYPE_VAAPI, nullptr, hwdevice_options, 0); if (hwdevice_error >= 0) { LOG_INFO(Service_NVDRV, "Using VA-API with {}", driver); av_dict_free(&hwdevice_options); + av_codec_ctx->pix_fmt = AV_PIX_FMT_VAAPI; return true; } LOG_DEBUG(Service_NVDRV, "VA-API av_hwdevice_ctx_create failed {}", hwdevice_error); } LOG_DEBUG(Service_NVDRV, "VA-API av_hwdevice_ctx_create failed for all drivers"); av_dict_free(&hwdevice_options); - return false; -} -} // namespace #endif - -void AVFrameDeleter(AVFrame* ptr) { - av_frame_free(&ptr); + static constexpr auto HW_CONFIG_METHOD = AV_CODEC_HW_CONFIG_METHOD_HW_DEVICE_CTX; + static constexpr std::array GPU_DECODER_TYPES{ + AV_HWDEVICE_TYPE_CUDA, +#ifdef _WIN32 + AV_HWDEVICE_TYPE_D3D11VA, +#else + AV_HWDEVICE_TYPE_VDPAU, +#endif + }; + for (const auto& type : GPU_DECODER_TYPES) { + const int hwdevice_res = av_hwdevice_ctx_create(&av_gpu_decoder, type, nullptr, nullptr, 0); + if (hwdevice_res < 0) { + LOG_DEBUG(Service_NVDRV, "{} av_hwdevice_ctx_create failed {}", + av_hwdevice_get_type_name(type), hwdevice_res); + continue; + } + for (int i = 0;; i++) { + const AVCodecHWConfig* config = avcodec_get_hw_config(av_codec, i); + if (!config) { + LOG_DEBUG(Service_NVDRV, "{} decoder does not support device type {}.", + av_codec->name, av_hwdevice_get_type_name(type)); + break; + } + if (config->methods & HW_CONFIG_METHOD && config->device_type == type) { + av_codec_ctx->pix_fmt = config->pix_fmt; + LOG_INFO(Service_NVDRV, "Using {} GPU decoder", av_hwdevice_get_type_name(type)); + return true; + } + } + } + return false; } -Codec::Codec(GPU& gpu_, const NvdecCommon::NvdecRegisters& regs) - : gpu(gpu_), state{regs}, h264_decoder(std::make_unique<Decoder::H264>(gpu)), - vp9_decoder(std::make_unique<Decoder::VP9>(gpu)) {} - -Codec::~Codec() { - if (!initialized) { - return; - } - // Free libav memory - avcodec_send_packet(av_codec_ctx, nullptr); - AVFrame* av_frame = av_frame_alloc(); - avcodec_receive_frame(av_codec_ctx, av_frame); - avcodec_flush_buffers(av_codec_ctx); - av_frame_free(&av_frame); - avcodec_close(av_codec_ctx); - av_buffer_unref(&av_hw_device); +void Codec::InitializeAvCodecContext() { + av_codec_ctx = avcodec_alloc_context3(av_codec); + av_opt_set(av_codec_ctx->priv_data, "tune", "zerolatency", 0); } -void Codec::InitializeHwdec() { - // Prioritize integrated GPU to mitigate bandwidth bottlenecks -#if defined(LIBVA_FOUND) - if (CreateVaapiHwdevice(&av_hw_device)) { - const auto hw_device_ctx = av_buffer_ref(av_hw_device); - ASSERT_MSG(hw_device_ctx, "av_buffer_ref failed"); - av_codec_ctx->hw_device_ctx = hw_device_ctx; - av_codec_ctx->get_format = GetHwFormat; +void Codec::InitializeGpuDecoder() { + if (!CreateGpuAvDevice()) { + av_buffer_unref(&av_gpu_decoder); return; } -#endif - // TODO more GPU accelerated decoders + auto* hw_device_ctx = av_buffer_ref(av_gpu_decoder); + ASSERT_MSG(hw_device_ctx, "av_buffer_ref failed"); + av_codec_ctx->hw_device_ctx = hw_device_ctx; + av_codec_ctx->get_format = GetGpuFormat; } void Codec::Initialize() { - AVCodecID codec; - switch (current_codec) { - case NvdecCommon::VideoCodec::H264: - codec = AV_CODEC_ID_H264; - break; - case NvdecCommon::VideoCodec::Vp9: - codec = AV_CODEC_ID_VP9; - break; - default: - UNIMPLEMENTED_MSG("Unknown codec {}", current_codec); + const AVCodecID codec = [&] { + switch (current_codec) { + case NvdecCommon::VideoCodec::H264: + return AV_CODEC_ID_H264; + case NvdecCommon::VideoCodec::Vp9: + return AV_CODEC_ID_VP9; + default: + UNIMPLEMENTED_MSG("Unknown codec {}", current_codec); + return AV_CODEC_ID_NONE; + } + }(); + av_codec = avcodec_find_decoder(codec); + + InitializeAvCodecContext(); + if (Settings::values.nvdec_emulation.GetValue() == Settings::NvdecEmulation::GPU) { + InitializeGpuDecoder(); + } + if (const int res = avcodec_open2(av_codec_ctx, av_codec, nullptr); res < 0) { + LOG_ERROR(Service_NVDRV, "avcodec_open2() Failed with result {}", res); + avcodec_free_context(&av_codec_ctx); + av_buffer_unref(&av_gpu_decoder); return; } - av_codec = avcodec_find_decoder(codec); - av_codec_ctx = avcodec_alloc_context3(av_codec); - av_opt_set(av_codec_ctx->priv_data, "tune", "zerolatency", 0); - InitializeHwdec(); if (!av_codec_ctx->hw_device_ctx) { LOG_INFO(Service_NVDRV, "Using FFmpeg software decoding"); } - const auto av_error = avcodec_open2(av_codec_ctx, av_codec, nullptr); - if (av_error < 0) { - LOG_ERROR(Service_NVDRV, "avcodec_open2() Failed."); - avcodec_close(av_codec_ctx); - av_buffer_unref(&av_hw_device); - return; - } initialized = true; } @@ -133,6 +172,9 @@ void Codec::Decode() { if (is_first_frame) { Initialize(); } + if (!initialized) { + return; + } bool vp9_hidden_frame = false; std::vector<u8> frame_data; if (current_codec == NvdecCommon::VideoCodec::H264) { @@ -141,50 +183,48 @@ void Codec::Decode() { frame_data = vp9_decoder->ComposeFrameHeader(state); vp9_hidden_frame = vp9_decoder->WasFrameHidden(); } - AVPacket packet{}; - av_init_packet(&packet); - packet.data = frame_data.data(); - packet.size = static_cast<s32>(frame_data.size()); - if (const int ret = avcodec_send_packet(av_codec_ctx, &packet); ret) { - LOG_DEBUG(Service_NVDRV, "avcodec_send_packet error {}", ret); + AVPacketPtr packet{av_packet_alloc(), AVPacketDeleter}; + if (!packet) { + LOG_ERROR(Service_NVDRV, "av_packet_alloc failed"); + return; + } + packet->data = frame_data.data(); + packet->size = static_cast<s32>(frame_data.size()); + if (const int res = avcodec_send_packet(av_codec_ctx, packet.get()); res != 0) { + LOG_DEBUG(Service_NVDRV, "avcodec_send_packet error {}", res); return; } // Only receive/store visible frames if (vp9_hidden_frame) { return; } - AVFrame* hw_frame = av_frame_alloc(); - AVFrame* sw_frame = hw_frame; - ASSERT_MSG(hw_frame, "av_frame_alloc hw_frame failed"); - if (const int ret = avcodec_receive_frame(av_codec_ctx, hw_frame); ret) { + AVFramePtr initial_frame{av_frame_alloc(), AVFrameDeleter}; + AVFramePtr final_frame{nullptr, AVFrameDeleter}; + ASSERT_MSG(initial_frame, "av_frame_alloc initial_frame failed"); + if (const int ret = avcodec_receive_frame(av_codec_ctx, initial_frame.get()); ret) { LOG_DEBUG(Service_NVDRV, "avcodec_receive_frame error {}", ret); - av_frame_free(&hw_frame); return; } - if (!hw_frame->width || !hw_frame->height) { + if (initial_frame->width == 0 || initial_frame->height == 0) { LOG_WARNING(Service_NVDRV, "Zero width or height in frame"); - av_frame_free(&hw_frame); return; } -#if defined(LIBVA_FOUND) - // Hardware acceleration code from FFmpeg/doc/examples/hw_decode.c under MIT license - if (hw_frame->format == AV_PIX_FMT_VAAPI) { - sw_frame = av_frame_alloc(); - ASSERT_MSG(sw_frame, "av_frame_alloc sw_frame failed"); + if (av_codec_ctx->hw_device_ctx) { + final_frame = AVFramePtr{av_frame_alloc(), AVFrameDeleter}; + ASSERT_MSG(final_frame, "av_frame_alloc final_frame failed"); // Can't use AV_PIX_FMT_YUV420P and share code with software decoding in vic.cpp // because Intel drivers crash unless using AV_PIX_FMT_NV12 - sw_frame->format = AV_PIX_FMT_NV12; - const int transfer_data_ret = av_hwframe_transfer_data(sw_frame, hw_frame, 0); - ASSERT_MSG(!transfer_data_ret, "av_hwframe_transfer_data error {}", transfer_data_ret); - av_frame_free(&hw_frame); + final_frame->format = PREFERRED_GPU_FMT; + const int ret = av_hwframe_transfer_data(final_frame.get(), initial_frame.get(), 0); + ASSERT_MSG(!ret, "av_hwframe_transfer_data error {}", ret); + } else { + final_frame = std::move(initial_frame); } -#endif - if (sw_frame->format != AV_PIX_FMT_YUV420P && sw_frame->format != AV_PIX_FMT_NV12) { - UNIMPLEMENTED_MSG("Unexpected video format from host graphics: {}", sw_frame->format); - av_frame_free(&sw_frame); + if (final_frame->format != PREFERRED_CPU_FMT && final_frame->format != PREFERRED_GPU_FMT) { + UNIMPLEMENTED_MSG("Unexpected video format: {}", final_frame->format); return; } - av_frames.push(AVFramePtr{sw_frame, AVFrameDeleter}); + av_frames.push(std::move(final_frame)); if (av_frames.size() > 10) { LOG_TRACE(Service_NVDRV, "av_frames.push overflow dropped frame"); av_frames.pop(); diff --git a/src/video_core/command_classes/codecs/codec.h b/src/video_core/command_classes/codecs/codec.h index 71936203f..f9a80886f 100644 --- a/src/video_core/command_classes/codecs/codec.h +++ b/src/video_core/command_classes/codecs/codec.h @@ -5,6 +5,7 @@ #pragma once #include <memory> +#include <string_view> #include <queue> #include "common/common_types.h" #include "video_core/command_classes/nvdec_common.h" @@ -50,18 +51,23 @@ public: /// Returns the value of current_codec [[nodiscard]] NvdecCommon::VideoCodec GetCurrentCodec() const; + /// Return name of the current codec [[nodiscard]] std::string_view GetCurrentCodecName() const; private: - void InitializeHwdec(); + void InitializeAvCodecContext(); + + void InitializeGpuDecoder(); + + bool CreateGpuAvDevice(); bool initialized{}; NvdecCommon::VideoCodec current_codec{NvdecCommon::VideoCodec::None}; AVCodec* av_codec{nullptr}; - AVBufferRef* av_hw_device{nullptr}; AVCodecContext* av_codec_ctx{nullptr}; + AVBufferRef* av_gpu_decoder{nullptr}; GPU& gpu; const NvdecCommon::NvdecRegisters& state; diff --git a/src/video_core/command_classes/codecs/h264.cpp b/src/video_core/command_classes/codecs/h264.cpp index 5fb6d45ee..51ee14c13 100644 --- a/src/video_core/command_classes/codecs/h264.cpp +++ b/src/video_core/command_classes/codecs/h264.cpp @@ -95,7 +95,8 @@ const std::vector<u8>& H264::ComposeFrameHeader(const NvdecCommon::NvdecRegister const s32 pic_height = context.h264_parameter_set.frame_height_in_map_units / (context.h264_parameter_set.frame_mbs_only_flag ? 1 : 2); - writer.WriteUe(16); + // TODO (ameerj): Where do we get this number, it seems to be particular for each stream + writer.WriteUe(6); // Max number of reference frames writer.WriteBit(false); writer.WriteUe(context.h264_parameter_set.pic_width_in_mbs - 1); writer.WriteUe(pic_height - 1); diff --git a/src/video_core/command_classes/codecs/vp9.cpp b/src/video_core/command_classes/codecs/vp9.cpp index 70030066a..d7e749485 100644 --- a/src/video_core/command_classes/codecs/vp9.cpp +++ b/src/video_core/command_classes/codecs/vp9.cpp @@ -742,6 +742,7 @@ VpxBitStreamWriter VP9::ComposeUncompressedHeader() { uncomp_writer.WriteDeltaQ(current_frame_info.uv_dc_delta_q); uncomp_writer.WriteDeltaQ(current_frame_info.uv_ac_delta_q); + ASSERT(!current_frame_info.segment_enabled); uncomp_writer.WriteBit(false); // Segmentation enabled (TODO). const s32 min_tile_cols_log2 = CalcMinLog2TileCols(current_frame_info.frame_size.width); diff --git a/src/video_core/command_classes/codecs/vp9_types.h b/src/video_core/command_classes/codecs/vp9_types.h index 87eafdb03..3b1ed4b3a 100644 --- a/src/video_core/command_classes/codecs/vp9_types.h +++ b/src/video_core/command_classes/codecs/vp9_types.h @@ -22,7 +22,7 @@ struct Vp9FrameDimensions { }; static_assert(sizeof(Vp9FrameDimensions) == 0x8, "Vp9 Vp9FrameDimensions is an invalid size"); -enum FrameFlags : u32 { +enum class FrameFlags : u32 { IsKeyFrame = 1 << 0, LastFrameIsKeyFrame = 1 << 1, FrameSizeChanged = 1 << 2, @@ -30,6 +30,7 @@ enum FrameFlags : u32 { LastShowFrame = 1 << 4, IntraOnly = 1 << 5, }; +DECLARE_ENUM_FLAG_OPERATORS(FrameFlags) enum class TxSize { Tx4x4 = 0, // 4x4 transform @@ -92,44 +93,34 @@ struct Vp9EntropyProbs { static_assert(sizeof(Vp9EntropyProbs) == 0x7B4, "Vp9EntropyProbs is an invalid size"); struct Vp9PictureInfo { - bool is_key_frame; - bool intra_only; - bool last_frame_was_key; - bool frame_size_changed; - bool error_resilient_mode; - bool last_frame_shown; - bool show_frame; + u32 bitstream_size; + std::array<u64, 4> frame_offsets; std::array<s8, 4> ref_frame_sign_bias; s32 base_q_index; s32 y_dc_delta_q; s32 uv_dc_delta_q; s32 uv_ac_delta_q; - bool lossless; s32 transform_mode; - bool allow_high_precision_mv; s32 interp_filter; s32 reference_mode; - s8 comp_fixed_ref; - std::array<s8, 2> comp_var_ref; s32 log2_tile_cols; s32 log2_tile_rows; - bool segment_enabled; - bool segment_map_update; - bool segment_map_temporal_update; - s32 segment_abs_delta; - std::array<u32, 8> segment_feature_enable; - std::array<std::array<s16, 4>, 8> segment_feature_data; - bool mode_ref_delta_enabled; - bool use_prev_in_find_mv_refs; std::array<s8, 4> ref_deltas; std::array<s8, 2> mode_deltas; Vp9EntropyProbs entropy; Vp9FrameDimensions frame_size; u8 first_level; u8 sharpness_level; - u32 bitstream_size; - std::array<u64, 4> frame_offsets; - std::array<bool, 4> refresh_frame; + bool is_key_frame; + bool intra_only; + bool last_frame_was_key; + bool error_resilient_mode; + bool last_frame_shown; + bool show_frame; + bool lossless; + bool allow_high_precision_mv; + bool segment_enabled; + bool mode_ref_delta_enabled; }; struct Vp9FrameContainer { @@ -145,7 +136,7 @@ struct PictureInfo { Vp9FrameDimensions golden_frame_size; ///< 0x50 Vp9FrameDimensions alt_frame_size; ///< 0x58 Vp9FrameDimensions current_frame_size; ///< 0x60 - u32 vp9_flags; ///< 0x68 + FrameFlags vp9_flags; ///< 0x68 std::array<s8, 4> ref_frame_sign_bias; ///< 0x6C u8 first_level; ///< 0x70 u8 sharpness_level; ///< 0x71 @@ -158,60 +149,43 @@ struct PictureInfo { u8 allow_high_precision_mv; ///< 0x78 u8 interp_filter; ///< 0x79 u8 reference_mode; ///< 0x7A - s8 comp_fixed_ref; ///< 0x7B - std::array<s8, 2> comp_var_ref; ///< 0x7C + INSERT_PADDING_BYTES_NOINIT(3); ///< 0x7B u8 log2_tile_cols; ///< 0x7E u8 log2_tile_rows; ///< 0x7F Segmentation segmentation; ///< 0x80 LoopFilter loop_filter; ///< 0xE4 - INSERT_PADDING_BYTES_NOINIT(5); ///< 0xEB - u32 surface_params; ///< 0xF0 - INSERT_PADDING_WORDS_NOINIT(3); ///< 0xF4 + INSERT_PADDING_BYTES_NOINIT(21); ///< 0xEB [[nodiscard]] Vp9PictureInfo Convert() const { return { - .is_key_frame = (vp9_flags & FrameFlags::IsKeyFrame) != 0, - .intra_only = (vp9_flags & FrameFlags::IntraOnly) != 0, - .last_frame_was_key = (vp9_flags & FrameFlags::LastFrameIsKeyFrame) != 0, - .frame_size_changed = (vp9_flags & FrameFlags::FrameSizeChanged) != 0, - .error_resilient_mode = (vp9_flags & FrameFlags::ErrorResilientMode) != 0, - .last_frame_shown = (vp9_flags & FrameFlags::LastShowFrame) != 0, - .show_frame = true, + .bitstream_size = bitstream_size, + .frame_offsets{}, .ref_frame_sign_bias = ref_frame_sign_bias, .base_q_index = base_q_index, .y_dc_delta_q = y_dc_delta_q, .uv_dc_delta_q = uv_dc_delta_q, .uv_ac_delta_q = uv_ac_delta_q, - .lossless = lossless != 0, .transform_mode = tx_mode, - .allow_high_precision_mv = allow_high_precision_mv != 0, .interp_filter = interp_filter, .reference_mode = reference_mode, - .comp_fixed_ref = comp_fixed_ref, - .comp_var_ref = comp_var_ref, .log2_tile_cols = log2_tile_cols, .log2_tile_rows = log2_tile_rows, - .segment_enabled = segmentation.enabled != 0, - .segment_map_update = segmentation.update_map != 0, - .segment_map_temporal_update = segmentation.temporal_update != 0, - .segment_abs_delta = segmentation.abs_delta, - .segment_feature_enable = segmentation.feature_mask, - .segment_feature_data = segmentation.feature_data, - .mode_ref_delta_enabled = loop_filter.mode_ref_delta_enabled != 0, - .use_prev_in_find_mv_refs = !(vp9_flags == (FrameFlags::ErrorResilientMode)) && - !(vp9_flags == (FrameFlags::FrameSizeChanged)) && - !(vp9_flags == (FrameFlags::IntraOnly)) && - (vp9_flags == (FrameFlags::LastShowFrame)) && - !(vp9_flags == (FrameFlags::LastFrameIsKeyFrame)), .ref_deltas = loop_filter.ref_deltas, .mode_deltas = loop_filter.mode_deltas, .entropy{}, .frame_size = current_frame_size, .first_level = first_level, .sharpness_level = sharpness_level, - .bitstream_size = bitstream_size, - .frame_offsets{}, - .refresh_frame{}, + .is_key_frame = True(vp9_flags & FrameFlags::IsKeyFrame), + .intra_only = True(vp9_flags & FrameFlags::IntraOnly), + .last_frame_was_key = True(vp9_flags & FrameFlags::LastFrameIsKeyFrame), + .error_resilient_mode = True(vp9_flags & FrameFlags::ErrorResilientMode), + .last_frame_shown = True(vp9_flags & FrameFlags::LastShowFrame), + .show_frame = true, + .lossless = lossless != 0, + .allow_high_precision_mv = allow_high_precision_mv != 0, + .segment_enabled = segmentation.enabled != 0, + .mode_ref_delta_enabled = loop_filter.mode_ref_delta_enabled != 0, }; } }; @@ -316,7 +290,6 @@ ASSERT_POSITION(last_frame_size, 0x48); ASSERT_POSITION(first_level, 0x70); ASSERT_POSITION(segmentation, 0x80); ASSERT_POSITION(loop_filter, 0xE4); -ASSERT_POSITION(surface_params, 0xF0); #undef ASSERT_POSITION #define ASSERT_POSITION(field_name, position) \ |