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| 1 | +#include "h264_decoder_impl.h" |
| 2 | + |
| 3 | +#include <api/video/i420_buffer.h> |
| 4 | +#include <api/video/video_codec_type.h> |
| 5 | +#include <modules/video_coding/include/video_error_codes.h> |
| 6 | +#include <third_party/libyuv/include/libyuv/convert.h> |
| 7 | + |
| 8 | +#include "NvDecoder/NvDecoder.h" |
| 9 | +#include "Utils/NvCodecUtils.h" |
| 10 | +#include "rtc_base/checks.h" |
| 11 | +#include "rtc_base/logging.h" |
| 12 | + |
| 13 | +namespace webrtc { |
| 14 | + |
| 15 | +ColorSpace ExtractH264ColorSpace(const CUVIDEOFORMAT& format) { |
| 16 | + return ColorSpace( |
| 17 | + static_cast<ColorSpace::PrimaryID>( |
| 18 | + format.video_signal_description.color_primaries), |
| 19 | + static_cast<ColorSpace::TransferID>( |
| 20 | + format.video_signal_description.transfer_characteristics), |
| 21 | + static_cast<ColorSpace::MatrixID>( |
| 22 | + format.video_signal_description.matrix_coefficients), |
| 23 | + static_cast<ColorSpace::RangeID>( |
| 24 | + format.video_signal_description.video_full_range_flag)); |
| 25 | +} |
| 26 | + |
| 27 | +NvidiaH264DecoderImpl::NvidiaH264DecoderImpl(CUcontext context) |
| 28 | + : cu_context_(context), |
| 29 | + decoder_(nullptr), |
| 30 | + is_configured_decoder_(false), |
| 31 | + decoded_complete_callback_(nullptr), |
| 32 | + buffer_pool_(false) {} |
| 33 | + |
| 34 | +NvidiaH264DecoderImpl::~NvidiaH264DecoderImpl() { |
| 35 | + Release(); |
| 36 | +} |
| 37 | + |
| 38 | +VideoDecoder::DecoderInfo NvidiaH264DecoderImpl::GetDecoderInfo() const { |
| 39 | + VideoDecoder::DecoderInfo info; |
| 40 | + info.implementation_name = "NVIDIA H264 Decoder"; |
| 41 | + info.is_hardware_accelerated = true; |
| 42 | + return info; |
| 43 | +} |
| 44 | + |
| 45 | +bool NvidiaH264DecoderImpl::Configure(const Settings& settings) { |
| 46 | + if (settings.codec_type() != kVideoCodecH264) { |
| 47 | + RTC_LOG(LS_ERROR) |
| 48 | + << "initialization failed on codectype is not kVideoCodecH264"; |
| 49 | + return false; |
| 50 | + } |
| 51 | + if (!settings.max_render_resolution().Valid()) { |
| 52 | + RTC_LOG(LS_ERROR) |
| 53 | + << "initialization failed on codec_settings width < 0 or height < 0"; |
| 54 | + return false; |
| 55 | + } |
| 56 | + |
| 57 | + settings_ = settings; |
| 58 | + |
| 59 | + const CUresult result = cuCtxSetCurrent(cu_context_); |
| 60 | + if (!ck(result)) { |
| 61 | + RTC_LOG(LS_ERROR) << "initialization failed on cuCtxSetCurrent result" |
| 62 | + << result; |
| 63 | + return false; |
| 64 | + } |
| 65 | + |
| 66 | + // todo(kazuki): Max resolution is differred each architecture. |
| 67 | + // Refer to the table in Video Decoder Capabilities. |
| 68 | + // https://docs.nvidia.com/video-technologies/video-codec-sdk/nvdec-video-decoder-api-prog-guide |
| 69 | + int maxWidth = 4096; |
| 70 | + int maxHeight = 4096; |
| 71 | + |
| 72 | + // bUseDeviceFrame: allocate in memory or cuda device memory |
| 73 | + decoder_ = std::make_unique<NvDecoder>( |
| 74 | + cu_context_, false, cudaVideoCodec_H264, true, false, nullptr, nullptr, |
| 75 | + false, maxWidth, maxHeight); |
| 76 | + return true; |
| 77 | +} |
| 78 | + |
| 79 | +int32_t NvidiaH264DecoderImpl::RegisterDecodeCompleteCallback( |
| 80 | + DecodedImageCallback* callback) { |
| 81 | + this->decoded_complete_callback_ = callback; |
| 82 | + return WEBRTC_VIDEO_CODEC_OK; |
| 83 | +} |
| 84 | + |
| 85 | +int32_t NvidiaH264DecoderImpl::Release() { |
| 86 | + buffer_pool_.Release(); |
| 87 | + return WEBRTC_VIDEO_CODEC_OK; |
| 88 | +} |
| 89 | + |
| 90 | +int32_t NvidiaH264DecoderImpl::Decode(const EncodedImage& input_image, |
| 91 | + bool missing_frames, |
| 92 | + int64_t render_time_ms) { |
| 93 | + CUcontext current; |
| 94 | + if (!ck(cuCtxGetCurrent(¤t))) { |
| 95 | + RTC_LOG(LS_ERROR) << "decode failed on cuCtxGetCurrent is failed"; |
| 96 | + return WEBRTC_VIDEO_CODEC_UNINITIALIZED; |
| 97 | + } |
| 98 | + if (current != cu_context_) { |
| 99 | + RTC_LOG(LS_ERROR) |
| 100 | + << "decode failed on not match current context and hold context"; |
| 101 | + return WEBRTC_VIDEO_CODEC_UNINITIALIZED; |
| 102 | + } |
| 103 | + if (decoded_complete_callback_ == nullptr) { |
| 104 | + RTC_LOG(LS_ERROR) << "decode failed on not set m_decodedCompleteCallback"; |
| 105 | + return WEBRTC_VIDEO_CODEC_UNINITIALIZED; |
| 106 | + } |
| 107 | + if (!input_image.data() || !input_image.size()) { |
| 108 | + RTC_LOG(LS_ERROR) << "decode failed on input image is null"; |
| 109 | + return WEBRTC_VIDEO_CODEC_ERR_PARAMETER; |
| 110 | + } |
| 111 | + |
| 112 | + h264_bitstream_parser_.ParseBitstream(input_image); |
| 113 | + absl::optional<int> qp = h264_bitstream_parser_.GetLastSliceQp(); |
| 114 | + absl::optional<SpsParser::SpsState> sps = h264_bitstream_parser_.sps(); |
| 115 | + |
| 116 | + if (is_configured_decoder_) { |
| 117 | + if (!sps || |
| 118 | + sps.value().width != static_cast<uint32_t>(decoder_->GetWidth()) || |
| 119 | + sps.value().height != static_cast<uint32_t>(decoder_->GetHeight())) { |
| 120 | + decoder_->setReconfigParams(nullptr, nullptr); |
| 121 | + } |
| 122 | + } |
| 123 | + |
| 124 | + int nFrameReturnd = 0; |
| 125 | + do { |
| 126 | + nFrameReturnd = decoder_->Decode( |
| 127 | + input_image.data(), static_cast<int>(input_image.size()), |
| 128 | + CUVID_PKT_TIMESTAMP, input_image.RtpTimestamp()); |
| 129 | + } while (nFrameReturnd == 0); |
| 130 | + |
| 131 | + is_configured_decoder_ = true; |
| 132 | + |
| 133 | + // todo: support other output format |
| 134 | + // Chromium's H264 Encoder is output on NV12, so currently only NV12 is |
| 135 | + // supported. |
| 136 | + if (decoder_->GetOutputFormat() != cudaVideoSurfaceFormat_NV12) { |
| 137 | + RTC_LOG(LS_ERROR) << "not supported this format: " |
| 138 | + << decoder_->GetOutputFormat(); |
| 139 | + return WEBRTC_VIDEO_CODEC_ERR_PARAMETER; |
| 140 | + } |
| 141 | + |
| 142 | + // Pass on color space from input frame if explicitly specified. |
| 143 | + const ColorSpace& color_space = |
| 144 | + input_image.ColorSpace() |
| 145 | + ? *input_image.ColorSpace() |
| 146 | + : ExtractH264ColorSpace(decoder_->GetVideoFormatInfo()); |
| 147 | + |
| 148 | + for (int i = 0; i < nFrameReturnd; i++) { |
| 149 | + int64_t timeStamp; |
| 150 | + uint8_t* pFrame = decoder_->GetFrame(&timeStamp); |
| 151 | + |
| 152 | + rtc::scoped_refptr<webrtc::I420Buffer> i420_buffer = |
| 153 | + buffer_pool_.CreateI420Buffer(decoder_->GetWidth(), |
| 154 | + decoder_->GetHeight()); |
| 155 | + |
| 156 | + int result; |
| 157 | + { |
| 158 | + result = libyuv::NV12ToI420( |
| 159 | + pFrame, decoder_->GetDeviceFramePitch(), |
| 160 | + pFrame + decoder_->GetHeight() * decoder_->GetDeviceFramePitch(), |
| 161 | + decoder_->GetDeviceFramePitch(), i420_buffer->MutableDataY(), |
| 162 | + i420_buffer->StrideY(), i420_buffer->MutableDataU(), |
| 163 | + i420_buffer->StrideU(), i420_buffer->MutableDataV(), |
| 164 | + i420_buffer->StrideV(), decoder_->GetWidth(), decoder_->GetHeight()); |
| 165 | + } |
| 166 | + |
| 167 | + if (result) { |
| 168 | + RTC_LOG(LS_INFO) << "libyuv::NV12ToI420 failed. error:" << result; |
| 169 | + } |
| 170 | + |
| 171 | + VideoFrame decoded_frame = |
| 172 | + VideoFrame::Builder() |
| 173 | + .set_video_frame_buffer(i420_buffer) |
| 174 | + .set_timestamp_rtp(static_cast<uint32_t>(timeStamp)) |
| 175 | + .set_color_space(color_space) |
| 176 | + .build(); |
| 177 | + |
| 178 | + // todo: measurement decoding time |
| 179 | + absl::optional<int32_t> decodetime; |
| 180 | + decoded_complete_callback_->Decoded(decoded_frame, decodetime, qp); |
| 181 | + } |
| 182 | + |
| 183 | + return WEBRTC_VIDEO_CODEC_OK; |
| 184 | +} |
| 185 | + |
| 186 | +} // end namespace webrtc |
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