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Merge pull request #8066 from ameerj/gpu-decode-fixes
codec: Fix GPU decoder detection on Windows and a memory leak
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commit
b1fdc02465
@ -56,6 +56,18 @@ AVPixelFormat GetGpuFormat(AVCodecContext* av_codec_ctx, const AVPixelFormat* pi
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av_codec_ctx->pix_fmt = PREFERRED_CPU_FMT;
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return PREFERRED_CPU_FMT;
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}
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// List all the currently available hwcontext in ffmpeg
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std::vector<AVHWDeviceType> ListSupportedContexts() {
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std::vector<AVHWDeviceType> contexts{};
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AVHWDeviceType current_device_type = AV_HWDEVICE_TYPE_NONE;
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do {
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current_device_type = av_hwdevice_iterate_types(current_device_type);
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contexts.push_back(current_device_type);
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} while (current_device_type != AV_HWDEVICE_TYPE_NONE);
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return contexts;
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}
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} // namespace
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void AVFrameDeleter(AVFrame* ptr) {
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@ -76,17 +88,6 @@ Codec::~Codec() {
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av_buffer_unref(&av_gpu_decoder);
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}
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// List all the currently available hwcontext in ffmpeg
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static std::vector<AVHWDeviceType> ListSupportedContexts() {
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std::vector<AVHWDeviceType> contexts{};
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AVHWDeviceType current_device_type = AV_HWDEVICE_TYPE_NONE;
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do {
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current_device_type = av_hwdevice_iterate_types(current_device_type);
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contexts.push_back(current_device_type);
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} while (current_device_type != AV_HWDEVICE_TYPE_NONE);
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return contexts;
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}
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bool Codec::CreateGpuAvDevice() {
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static constexpr auto HW_CONFIG_METHOD = AV_CODEC_HW_CONFIG_METHOD_HW_DEVICE_CTX;
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static const auto supported_contexts = ListSupportedContexts();
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@ -96,6 +97,8 @@ bool Codec::CreateGpuAvDevice() {
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LOG_DEBUG(Service_NVDRV, "{} explicitly unsupported", av_hwdevice_get_type_name(type));
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continue;
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}
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// Avoid memory leak from not cleaning up after av_hwdevice_ctx_create
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av_buffer_unref(&av_gpu_decoder);
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const int hwdevice_res = av_hwdevice_ctx_create(&av_gpu_decoder, type, nullptr, nullptr, 0);
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if (hwdevice_res < 0) {
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LOG_DEBUG(Service_NVDRV, "{} av_hwdevice_ctx_create failed {}",
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@ -127,15 +130,19 @@ bool Codec::CreateGpuAvDevice() {
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av_codec->name, av_hwdevice_get_type_name(type));
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break;
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}
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if (config->methods & HW_CONFIG_METHOD && config->device_type == type) {
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av_codec_ctx->pix_fmt = config->pix_fmt;
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if (config->methods & AV_CODEC_HW_CONFIG_METHOD_HW_FRAMES_CTX) {
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if ((config->methods & HW_CONFIG_METHOD) != 0 && config->device_type == type) {
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#if defined(__unix__)
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// Some linux decoding backends are reported to crash with this config method
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// TODO(ameerj): Properly support this method
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if ((config->methods & AV_CODEC_HW_CONFIG_METHOD_HW_FRAMES_CTX) != 0) {
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// skip zero-copy decoders, we don't currently support them
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LOG_DEBUG(Service_NVDRV, "Skipping decoder {} with unsupported capability {}.",
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av_hwdevice_get_type_name(type), config->methods);
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continue;
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}
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#endif
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LOG_INFO(Service_NVDRV, "Using {} GPU decoder", av_hwdevice_get_type_name(type));
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av_codec_ctx->pix_fmt = config->pix_fmt;
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return true;
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}
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}
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