Re: [FFmpeg-user] Using h264_mmal decoder on Raspberry Pi 4

2019-11-01 Thread Verachten Bruno
Simon, there is a script there: https://www.raspberrypi.org/forums/viewtopic.php?t=199775 that could help you entering the right parameters to compile ffmpeg for the Raspberry Pi. Yes, it's a bit dated (ffmpeg 4.0.2 and Debian Stretch) but it worked for me. I did not say your parameters are not

Re: [FFmpeg-user] Problem capturing native HDV stream from camera (macOS)

2019-11-01 Thread Olivier Bruchez
Hi, Capturing video only with capture_raw_data set to false: ffmpeg -f avfoundation -capture_raw_data false -i "1:" -c copy test.mkv Logs: https://drive.google.com/file/d/1pCDgY3hzkGeJ0F1nbpASpvVFUheak1jA/view?usp=sharing Capturing video only with capture_raw_data set to true: ffmpeg -f

[FFmpeg-user] Insert chapter markers into an AAC encoded .m4b audiobook file

2019-11-01 Thread Martin Goose
I am trying to insert chapter markers into an AAC encoded .m4b audiobook file. I know that I need to create a text file with the chapter positions etc. similar to the following. ;FFMETADATA1 [CHAPTER] TIMEBASE=1/1000 START=0 END=1025579 title=Chapter 1 [CHAPTER] TIMEBASE=1/1000 START=1025579

[FFmpeg-user] Using h264_mmal decoder on Raspberry Pi 4

2019-11-01 Thread Simon Brown
Hi, I've built ffmpeg from the latest Git head and enabled the hardware acceleration for decode and encode on the raspberry pi 4. If I run ffmpeg -decoders | grep h264 it responds with: h264 h264_v4l2m2m h264_mmal However, if I try and run ffmpeg on a stream and ask it to decode with h264_mmal I