Gfrktyl

Thank you so much for checking out my post, I'm still new to ffmpeg but getting addicted to experimenting with it, yet I'm facing the following problem:

ffmpeg -f gdigrab -s 1360x768 -framerate 30 -i desktop 

       -f dshow -i video="video-input-device":audio="audio-input-device" 

       -i image.png 

       -filter_complex "[0:v]format=yuv420p,yadif[v];[1:v]scale=256:-1,overlay=10:10[secondvideo];[v][2]overlay=main_w-overlay_w-10/2:main_h-overlay_h-10/2[image];[image][secondvideo]concat=n=2[outer];[outer]split=2[out0][out1]" 

       -map 1:a -c:a aac -b:a 128k -map "[out0]" -c:v libx264 -b:v 2M -preset ultrafast -s 1280x720 -f mp4 output0.mp4 

       -map 1:a -c:a aac -b:a 128k -map "[out1]" -c:v libx264 -b:v 2M -preset ultrafast -s 1280x720 -f mp4 output1.mp4

Expected output: Two videos containing audio, screen being recorded and multiple video streams located on different places in the video, in my case it's a webcam on the top left of the video and an image on the bottom right.

Real output: The following error

Stream mapping:

Stream #0:0 (bmp) -> format (graph 0)

Stream #1:0 (rawvideo) -> scale (graph 0)

Stream #2:0 (png) -> overlay:overlay (graph 0)

Stream #2:0 (png) -> overlay:overlay (graph 0)

Stream #1:1 -> #0:0 (pcm_s16le (native) -> aac (native))

split:output0 (graph 0) -> Stream #0:1 (libx264)

Stream #1:1 -> #1:0 (pcm_s16le (native) -> aac (native))

split:output1 (graph 0) -> Stream #1:1 (libx264)

Press [q] to stop, [?] for help

[dshow @ 0000003601a30ec0] Thread message queue blocking; consider raising 

the thread_queue_size option (current value: 8)

[Parsed_concat_5 @ 000000360bdef840] Input link in1:v0 parameters (size 

256x192, SAR 0:1) do not match the corresponding output link in0:v0 

parameters (1360x768, SAR 0:1)

[Parsed_concat_5 @ 000000360bdef840] Failed to configure output pad on 

Parsed_concat_5

Error reinitializing filters!

Failed to inject frame into filter network: Invalid argument

Error while processing the decoded data for stream #2:0

[aac @ 0000003601a9ef00] Qavg: 198.729

[aac @ 0000003601a9ef00] 2 frames left in the queue on closing

[aac @ 000000360a253800] Qavg: 198.729

[aac @ 000000360a253800] 2 frames left in the queue on closing

Conversion failed!

I know it's a filter_complex issue but I don't know where exactly, any help would be very appreciated!

Use

ffmpeg -f gdigrab -s 1360x768 -framerate 30 -i desktop 

       -f dshow -i video="video-input-device":audio="audio-input-device" 

       -i image.png 

       -filter_complex "[1:v]scale=256:-1[secondvideo];[0:v][secondvideo]overlay=10:10[v1];[v1][2]main_w-overlay_w-10/2:main_h-overlay_h-10/2,split=2[out0][out1]" 

       -map 1:a -c:a aac -b:a 128k -map "[out0]" -c:v libx264 -b:v 2M -preset ultrafast -s 1280x720 -f mp4 output0.mp4 

       -map 1:a -c:a aac -b:a 128k -map "[out1]" -c:v libx264 -b:v 2M -preset ultrafast -s 1280x720 -f mp4 output1.mp4

There's no need to deinterlace an input from the GDI buffer, and the format is not necessary either. The overlays should be applied in succession with labelled input pads.