Fix black video when resizing to smaller window size
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@ -38,5 +38,4 @@ FFMPEG only uses the GPU with CUDA when doing transcoding from an input video to
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libraries at compile-time.
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* Clean up the code!
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* Fix segfault in debug mode (happens because audio codec becomes NULL?)
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* Fix blackscreen at start that appears until the second keyframe, which can be several seconds on a non-moving screen. Why does this happen? ffmpeg says the first frame should always be a keyframe!
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* Dynamically change bitrate to match desired fps. This would be helpful when streaming for example, where the encode output speed also depends on upload speed to the stream service.
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18
src/main.cpp
18
src/main.cpp
@ -897,6 +897,9 @@ int main(int argc, char **argv) {
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int window_width = xwa.width;
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int window_height = xwa.height;
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int original_window_width = window_width;
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int original_window_height = window_height;
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std::mutex write_output_mutex;
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std::thread audio_thread;
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@ -1026,6 +1029,7 @@ int main(int argc, char **argv) {
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"Error: cuGraphicsGLRegisterImage failed, error %s, texture "
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"id: %u\n",
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err_str, window_pixmap.target_texture_id);
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running = false;
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break;
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}
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@ -1037,8 +1041,21 @@ int main(int argc, char **argv) {
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av_frame_unref(frame);
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if (av_hwframe_get_buffer(video_stream->codec->hw_frames_ctx, frame, 0) < 0) {
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fprintf(stderr, "Error: av_hwframe_get_buffer failed\n");
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running = false;
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break;
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}
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frame->pts = frame_count;
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if(window_width < original_window_width)
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frame->width = window_pixmap.texture_width & ~1;
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else
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frame->width = original_window_width;
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if(window_height < original_window_height)
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frame->height = window_pixmap.texture_height & ~1;
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else
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frame->height = original_window_height;
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}
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++fps_counter;
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@ -1085,7 +1102,6 @@ int main(int argc, char **argv) {
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cuMemcpy2D(&memcpy_struct);
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// res = cuCtxPopCurrent(&old_ctx);
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glfwSwapBuffers(window);
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}
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frame->pts = frame_count;
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