diff options
Diffstat (limited to 'src/video_core/command_classes/codecs/vp9.cpp')
-rw-r--r-- | src/video_core/command_classes/codecs/vp9.cpp | 166 |
1 files changed, 98 insertions, 68 deletions
diff --git a/src/video_core/command_classes/codecs/vp9.cpp b/src/video_core/command_classes/codecs/vp9.cpp index d205a8f5d..42520f856 100644 --- a/src/video_core/command_classes/codecs/vp9.cpp +++ b/src/video_core/command_classes/codecs/vp9.cpp @@ -9,7 +9,7 @@ #include "video_core/memory_manager.h" namespace Tegra::Decoder { - +namespace { // Default compressed header probabilities once frame context resets constexpr Vp9EntropyProbs default_probs{ .y_mode_prob{ @@ -170,6 +170,89 @@ constexpr Vp9EntropyProbs default_probs{ .high_precision{128, 128}, }; +constexpr std::array<s32, 256> norm_lut{ + 0, 7, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, +}; + +constexpr std::array<s32, 254> map_lut{ + 20, 21, 22, 23, 24, 25, 0, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, + 1, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 2, 50, 51, 52, 53, 54, + 55, 56, 57, 58, 59, 60, 61, 3, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, + 73, 4, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 5, 86, 87, 88, 89, + 90, 91, 92, 93, 94, 95, 96, 97, 6, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, + 108, 109, 7, 110, 111, 112, 113, 114, 115, 116, 117, 118, 119, 120, 121, 8, 122, 123, 124, + 125, 126, 127, 128, 129, 130, 131, 132, 133, 9, 134, 135, 136, 137, 138, 139, 140, 141, 142, + 143, 144, 145, 10, 146, 147, 148, 149, 150, 151, 152, 153, 154, 155, 156, 157, 11, 158, 159, + 160, 161, 162, 163, 164, 165, 166, 167, 168, 169, 12, 170, 171, 172, 173, 174, 175, 176, 177, + 178, 179, 180, 181, 13, 182, 183, 184, 185, 186, 187, 188, 189, 190, 191, 192, 193, 14, 194, + 195, 196, 197, 198, 199, 200, 201, 202, 203, 204, 205, 15, 206, 207, 208, 209, 210, 211, 212, + 213, 214, 215, 216, 217, 16, 218, 219, 220, 221, 222, 223, 224, 225, 226, 227, 228, 229, 17, + 230, 231, 232, 233, 234, 235, 236, 237, 238, 239, 240, 241, 18, 242, 243, 244, 245, 246, 247, + 248, 249, 250, 251, 252, 253, 19, +}; + +// 6.2.14 Tile size calculation + +[[nodiscard]] s32 CalcMinLog2TileCols(s32 frame_width) { + const s32 sb64_cols = (frame_width + 63) / 64; + s32 min_log2 = 0; + + while ((64 << min_log2) < sb64_cols) { + min_log2++; + } + + return min_log2; +} + +[[nodiscard]] s32 CalcMaxLog2TileCols(s32 frame_width) { + const s32 sb64_cols = (frame_width + 63) / 64; + s32 max_log2 = 1; + + while ((sb64_cols >> max_log2) >= 4) { + max_log2++; + } + + return max_log2 - 1; +} + +// Recenters probability. Based on section 6.3.6 of VP9 Specification +[[nodiscard]] s32 RecenterNonNeg(s32 new_prob, s32 old_prob) { + if (new_prob > old_prob * 2) { + return new_prob; + } + + if (new_prob >= old_prob) { + return (new_prob - old_prob) * 2; + } + + return (old_prob - new_prob) * 2 - 1; +} + +// Adjusts old_prob depending on new_prob. Based on section 6.3.5 of VP9 Specification +[[nodiscard]] s32 RemapProbability(s32 new_prob, s32 old_prob) { + new_prob--; + old_prob--; + + std::size_t index{}; + + if (old_prob * 2 <= 0xff) { + index = static_cast<std::size_t>(std::max(0, RecenterNonNeg(new_prob, old_prob) - 1)); + } else { + index = static_cast<std::size_t>( + std::max(0, RecenterNonNeg(0xff - 1 - new_prob, 0xff - 1 - old_prob) - 1)); + } + + return map_lut[index]; +} +} // Anonymous namespace + VP9::VP9(GPU& gpu) : gpu(gpu) {} VP9::~VP9() = default; @@ -207,32 +290,6 @@ void VP9::WriteProbabilityDelta(VpxRangeEncoder& writer, u8 new_prob, u8 old_pro EncodeTermSubExp(writer, delta); } -s32 VP9::RemapProbability(s32 new_prob, s32 old_prob) { - new_prob--; - old_prob--; - - std::size_t index{}; - - if (old_prob * 2 <= 0xff) { - index = static_cast<std::size_t>(std::max(0, RecenterNonNeg(new_prob, old_prob) - 1)); - } else { - index = static_cast<std::size_t>( - std::max(0, RecenterNonNeg(0xff - 1 - new_prob, 0xff - 1 - old_prob) - 1)); - } - - return map_lut[index]; -} - -s32 VP9::RecenterNonNeg(s32 new_prob, s32 old_prob) { - if (new_prob > old_prob * 2) { - return new_prob; - } else if (new_prob >= old_prob) { - return (new_prob - old_prob) * 2; - } else { - return (old_prob - new_prob) * 2 - 1; - } -} - void VP9::EncodeTermSubExp(VpxRangeEncoder& writer, s32 value) { if (WriteLessThan(writer, value, 16)) { writer.Write(value, 4); @@ -332,28 +389,6 @@ void VP9::WriteMvProbabilityUpdate(VpxRangeEncoder& writer, u8 new_prob, u8 old_ } } -s32 VP9::CalcMinLog2TileCols(s32 frame_width) { - const s32 sb64_cols = (frame_width + 63) / 64; - s32 min_log2 = 0; - - while ((64 << min_log2) < sb64_cols) { - min_log2++; - } - - return min_log2; -} - -s32 VP9::CalcMaxLog2TileCols(s32 frameWidth) { - const s32 sb64_cols = (frameWidth + 63) / 64; - s32 max_log2 = 1; - - while ((sb64_cols >> max_log2) >= 4) { - max_log2++; - } - - return max_log2 - 1; -} - Vp9PictureInfo VP9::GetVp9PictureInfo(const NvdecCommon::NvdecRegisters& state) { PictureInfo picture_info{}; gpu.MemoryManager().ReadBlock(state.picture_info_offset, &picture_info, sizeof(PictureInfo)); @@ -379,14 +414,14 @@ Vp9FrameContainer VP9::GetCurrentFrame(const NvdecCommon::NvdecRegisters& state) Vp9FrameContainer frame{}; { gpu.SyncGuestHost(); - frame.info = std::move(GetVp9PictureInfo(state)); + frame.info = GetVp9PictureInfo(state); frame.bit_stream.resize(frame.info.bitstream_size); gpu.MemoryManager().ReadBlock(state.frame_bitstream_offset, frame.bit_stream.data(), frame.info.bitstream_size); } // Buffer two frames, saving the last show frame info - if (next_next_frame.bit_stream.size() != 0) { + if (!next_next_frame.bit_stream.empty()) { Vp9FrameContainer temp{ .info = frame.info, .bit_stream = frame.bit_stream, @@ -396,15 +431,15 @@ Vp9FrameContainer VP9::GetCurrentFrame(const NvdecCommon::NvdecRegisters& state) frame.bit_stream = next_next_frame.bit_stream; next_next_frame = std::move(temp); - if (next_frame.bit_stream.size() != 0) { - Vp9FrameContainer temp{ + if (!next_frame.bit_stream.empty()) { + Vp9FrameContainer temp2{ .info = frame.info, .bit_stream = frame.bit_stream, }; next_frame.info.show_frame = frame.info.last_frame_shown; frame.info = next_frame.info; frame.bit_stream = next_frame.bit_stream; - next_frame = std::move(temp); + next_frame = std::move(temp2); } else { next_frame.info = frame.info; next_frame.bit_stream = frame.bit_stream; @@ -605,12 +640,6 @@ std::vector<u8> VP9::ComposeCompressedHeader() { writer.End(); return writer.GetBuffer(); - - const auto writer_bytearray = writer.GetBuffer(); - - std::vector<u8> compressed_header(writer_bytearray.size()); - std::memcpy(compressed_header.data(), writer_bytearray.data(), writer_bytearray.size()); - return compressed_header; } VpxBitStreamWriter VP9::ComposeUncompressedHeader() { @@ -648,7 +677,6 @@ VpxBitStreamWriter VP9::ComposeUncompressedHeader() { current_frame_info.intra_only = true; } else { - std::array<s32, 3> ref_frame_index; if (!current_frame_info.show_frame) { uncomp_writer.WriteBit(current_frame_info.intra_only); @@ -663,9 +691,9 @@ VpxBitStreamWriter VP9::ComposeUncompressedHeader() { } // Last, Golden, Altref frames - ref_frame_index = std::array<s32, 3>{0, 1, 2}; + std::array<s32, 3> ref_frame_index{0, 1, 2}; - // set when next frame is hidden + // Set when next frame is hidden // altref and golden references are swapped if (swap_next_golden) { ref_frame_index = std::array<s32, 3>{0, 2, 1}; @@ -754,17 +782,19 @@ VpxBitStreamWriter VP9::ComposeUncompressedHeader() { for (std::size_t index = 0; index < current_frame_info.ref_deltas.size(); index++) { const s8 old_deltas = loop_filter_ref_deltas[index]; const s8 new_deltas = current_frame_info.ref_deltas[index]; + const bool differing_delta = old_deltas != new_deltas; - loop_filter_delta_update |= - (update_loop_filter_ref_deltas[index] = old_deltas != new_deltas); + update_loop_filter_ref_deltas[index] = differing_delta; + loop_filter_delta_update |= differing_delta; } for (std::size_t index = 0; index < current_frame_info.mode_deltas.size(); index++) { const s8 old_deltas = loop_filter_mode_deltas[index]; const s8 new_deltas = current_frame_info.mode_deltas[index]; + const bool differing_delta = old_deltas != new_deltas; - loop_filter_delta_update |= - (update_loop_filter_mode_deltas[index] = old_deltas != new_deltas); + update_loop_filter_mode_deltas[index] = differing_delta; + loop_filter_delta_update |= differing_delta; } uncomp_writer.WriteBit(loop_filter_delta_update); @@ -829,7 +859,7 @@ std::vector<u8>& VP9::ComposeFrameHeader(NvdecCommon::NvdecRegisters& state) { { Vp9FrameContainer curr_frame = GetCurrentFrame(state); current_frame_info = curr_frame.info; - bitstream = curr_frame.bit_stream; + bitstream = std::move(curr_frame.bit_stream); } // The uncompressed header routine sets PrevProb parameters needed for the compressed header |