rocm-systems/src/rocdecode/roc_decoder.cpp

/*
Copyright (c) 2023 - 2023 Advanced Micro Devices, Inc. All rights reserved.

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The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
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*/

#include "../commons.h"
#include "roc_decoder.h"

RocDecoder::RocDecoder(RocDecoderCreateInfo& decoder_create_info): va_video_decoder_{decoder_create_info}, device_id_{decoder_create_info.deviceid} {}

 RocDecoder::~RocDecoder() {
    // todo::
    hipError_t hipStatus = hipSuccess;
    if (hip_stream_) {
        hipStatus = hipStreamDestroy(hip_stream_);
        if (hipStatus != hipSuccess) {
            ERR("ERROR: hipStreamDestroy failed! (" + TOSTR(hipStatus) + ")");
        }
    }
 }

 rocDecStatus RocDecoder::InitializeDecoder() {
    rocDecStatus rocdec_status = ROCDEC_SUCCESS;
    rocdec_status = InitHIP(device_id_);
    if (rocdec_status != ROCDEC_SUCCESS) {
        ERR("ERROR: Failed to initilize the HIP!" + TOSTR(rocdec_status));
        return rocdec_status;
    }

    rocdec_status = va_video_decoder_.InitializeDecoder(hip_dev_prop_.gcnArchName);
    if (rocdec_status != ROCDEC_SUCCESS) {
        ERR("ERROR: Failed to initilize the VAAPI Video decoder!" + TOSTR(rocdec_status));
        return rocdec_status;
    }

     return rocdec_status;
 }

rocDecStatus RocDecoder::decodeFrame(RocdecPicParams *pPicParams) {
    rocDecStatus rocdec_status = ROCDEC_SUCCESS;
    rocdec_status = va_video_decoder_.SubmitDecode(pPicParams);
    if (rocdec_status != ROCDEC_SUCCESS) {
        ERR("ERROR: Decode submission is not successful!" + TOSTR(rocdec_status));
    }

     return rocdec_status;
}

rocDecStatus RocDecoder::getDecodeStatus(int nPicIdx, RocdecDecodeStatus* pDecodeStatus) {
    // todo:: return appropriate decStatus
    // init vaapi decoder to get the decoding status of the picture specified by nPicIndex 
    // return status
    return ROCDEC_NOT_IMPLEMENTED;
}

rocDecStatus RocDecoder::reconfigureDecoder(RocdecReconfigureDecoderInfo *pDecReconfigParams) {
    // todo:: return appropriate decStatus
    // this will be called when the current configuration is changed during decoding
    // release the current va-api decoder instance and create a new one with the new parameters (or reinit if available)
    // return status
    return ROCDEC_NOT_IMPLEMENTED;
}

rocDecStatus RocDecoder::mapVideoFrame(int nPicIdx, void *pDevMemPtr[3],
                                unsigned int pHorizontalPitch[3], RocdecProcParams *pVidPostprocParams) {
    // todo:: return appropriate decStatus
    // Post-process and map video frame corresponding to nPicIdx for use in HIP. Returns HIP device pointer and associated
    // pitch(horizontal stride) of the video frame. Returns device memory pointers for each plane (Y, U and V) seperately
    return ROCDEC_NOT_IMPLEMENTED;
}

rocDecStatus RocDecoder::unMapVideoFrame(void *pMappedDevPtr) {
    // todo:: return appropriate decStatus
    // Unmap a previously mapped video frame with the associated mapped raw pointer (pMappedDevPtr)
    return ROCDEC_NOT_IMPLEMENTED;
}


rocDecStatus RocDecoder::InitHIP(int device_id) {
    hipError_t hipStatus = hipSuccess;
    hipStatus = hipGetDeviceCount(&num_devices_);
    rocDecStatus decStatus = ROCDEC_SUCCESS;
    if (hipStatus != hipSuccess) {
        ERR("ERROR: hipGetDeviceCount failed!" + TOSTR(hipStatus));
        decStatus = ROCDEC_DEVICE_INVALID;
    }
    if (num_devices_ < 1) {
        ERR("ERROR: didn't find any GPU!");
        decStatus = ROCDEC_DEVICE_INVALID;
    }
    if (device_id >= num_devices_) {
        ERR("ERROR: the requested device_id is not found! ");
        decStatus = ROCDEC_DEVICE_INVALID;
    }
    hipStatus = hipSetDevice(device_id);
    if (hipStatus != hipSuccess) {
        ERR("ERROR: hipSetDevice( " + TOSTR(device_id) + ") failed! (" + TOSTR(hipStatus) + ")" );
        decStatus = ROCDEC_DEVICE_INVALID;
    }

    hipStatus = hipGetDeviceProperties(&hip_dev_prop_, device_id);
    if (hipStatus != hipSuccess) {
        ERR("ERROR: hipGetDeviceProperties for device (" +TOSTR(device_id) + " ) failed! (" + TOSTR(hipStatus) + ")" );
        decStatus = ROCDEC_DEVICE_INVALID;
    }

    hipStatus = hipStreamCreate(&hip_stream_);
    if (hipStatus != hipSuccess) {
        ERR("ERROR: hipStream_Create failed! (" + TOSTR(hipStatus) + ")");
        decStatus = ROCDEC_DEVICE_INVALID;
    }
    return decStatus;
}