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| if(framefinished && nres > 0 && nres == sz) | |
| { | |
| if (is_first_successful_frame){ | |
| is_first_successful_frame = false; | |
| img_conv_ctx = sws_getContext(m_pCodecCtx->width, m_pCodecCtx->height, m_pCodecCtx->pix_fmt, | |
| m_pCodecCtx->width, m_pCodecCtx->height, PIX_FMT_BGR24, | |
| SWS_BICUBIC, nullptr, nullptr, nullptr); | |
| auto bytes = avpicture_get_size(m_pCodecCtx->pix_fmt, m_pCodecCtx->width, m_pCodecCtx->height); | |
| auto buffer = reinterpret_cast<uint8_t *>(av_malloc(bytes * sizeof(uint8_t))); | |
| avpicture_fill(reinterpret_cast<AVPicture*>(temp_frame), buffer, PIX_FMT_BGR24, m_pCodecCtx->width, m_pCodecCtx->height); | |
| if (img_conv_ctx == nullptr){ | |
| printf("Failed to create conversion context\n"); | |
| throw 1; | |
| } | |
| cv::namedWindow( "frame", cv::WINDOW_AUTOSIZE ); | |
| } | |
| nres = sws_scale(img_conv_ctx, m_pFrame->data, m_pFrame->linesize, 0, m_pCodecCtx->height, temp_frame->data, temp_frame->linesize); | |
| cv::Mat img(m_pCodecCtx->height, m_pCodecCtx->width, CV_8UC3, temp_frame->data[0], temp_frame->linesize[0]); | |
| cv::imshow("frame", img); | |
| cv::waitKey(15); | |
| } | |
| } |
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