Function amf_buffer_from_packet

libavcodec/amfdec.c:526–553

}

static AMF_RESULT amf_buffer_from_packet(AVCodecContext *avctx, const AVPacket* pkt, AMFBuffer** buffer)
{
    AMFDecoderContext *ctx = avctx->priv_data;
    AVHWDeviceContext *hw_device_ctx = (AVHWDeviceContext*)ctx->device_ctx_ref->data;
    AVAMFDeviceContext *amf_device_ctx = (AVAMFDeviceContext *)hw_device_ctx->hwctx;
    AMFContext          *ctxt = amf_device_ctx->context;
    void                *mem;
    AMF_RESULT          err;
    AMFBuffer           *buf = NULL;

    AMF_RETURN_IF_FALSE(ctxt, pkt != NULL, AMF_INVALID_ARG, "amf_buffer_from_packet() - packet not passed in");
    AMF_RETURN_IF_FALSE(ctxt, buffer != NULL, AMF_INVALID_ARG, "amf_buffer_from_packet() - buffer pointer not passed in");

    err = ctxt->pVtbl->AllocBuffer(ctxt, AMF_MEMORY_HOST, pkt->size + AV_INPUT_BUFFER_PADDING_SIZE, buffer);
    AMF_RETURN_IF_FALSE(ctxt, err == AMF_OK, err, "amf_buffer_from_packet() -   failed");
    buf = *buffer;
    err = buf->pVtbl->SetSize(buf, pkt->size);
    AMF_RETURN_IF_FALSE(ctxt, err == AMF_OK, err, "amf_buffer_from_packet() - SetSize failed");
    // get the memory location and check the buffer was indeed allocated
    mem = buf->pVtbl->GetNative(buf);
    AMF_RETURN_IF_FALSE(ctxt, mem != NULL, AMF_INVALID_POINTER, "amf_buffer_from_packet() - GetNative failed");

    // copy the packet memory and clear data padding
    memcpy(mem, pkt->data, pkt->size);
    memset((amf_int8*)(mem)+pkt->size, 0, AV_INPUT_BUFFER_PADDING_SIZE);

    return amf_update_buffer_properties(avctx, buf, pkt);
}

static int amf_decode_frame(AVCodecContext *avctx, struct AVFrame *frame)
{