[FFmpeg-user] IP camera stream video with audio

Dear All, I have 2 types of IP cameras (Bosch Dinion UHD, Samsung PNO9080) and both capable of audio streaming alongside with video when attach MIC to it. On it's own web server showing audio has input signal so should work theoretically. I can grab video but not audio? What should i do here? I op

[FFmpeg-user] Audio slowly getting out of sync

Dear All, I have an issue when encoding HLS stream from an RTSP mjpeg video stream + USB audio via dshow. At the beginning audio & video are in sync but slowly but steadily the sound drifting out of sync. Video seems faster, approximately each 10 minutes the audio late +1 second. I am using the f

[FFmpeg-user] HLS segment time question

Dear All, I have facing issues with HLS segmenting time. Here is my command (i am piping input from memory bitmap): ffmpeg -y -loglevel info -f rawvideo -pix_fmt bgr24 -video_size 1920x1080 -framerate 25 -i "-" -pix_fmt yuv420p -profile:v baseline -hls_time 3 -hls_list_size 0 -hls_segment_f

Re: [FFmpeg-user] HLS stream playing issue - Mobile Firefox Android

On Tue, Nov 8, 2016 at 12:45 PM, Christian Ebert wrote: > * Walter Ebert on Tuesday, November 08, 2016 at 09:14:51 +0100 > >> On Mobile Firefox - via http://dailymotion.github.io/hls.js/demo/ - i > tr > >> to load local m3u8 file but i receive the following error in the demo's > >> info area: > >

[FFmpeg-user] Single Audio stream to multiple FFmpeg process?

Dear All, Is there any way - on Windows - to share a dshow USB microphone device to provide the same audio stream to two different FFmpeg process/pipe "same time"? Or this is not possible because of device exclusive usage by Windows or like that? Thanks! br, Gabor __

[FFmpeg-user] HLS stream playing issue - Mobile Firefox Android

Dear All, On Mobile Firefox - via http://dailymotion.github.io/hls.js/demo/ - i try to load local m3u8 file but i receive the following error in the demo's info area: Buffer Add Codec Error for video/mp4; codecs=avc1.f4001f :Operation is not supported. On desktop browser no error but playing fin

[FFmpeg-user] Issue with encoding HLS from RTMP input stream

Dear All, I am facing the following issue constantly when encode HLS stream from RTMP (h264) stream: The video picture quality changing between good and bad. Bad means part of the image/frame going to be squared (looks like huge individual pixels). Here is the command line: $ ffmpeg -v verbose -

[FFmpeg-user] Set keyframe interval raw video

Dear All, Would like to know what is the best way/parameter to force key frame interval. I would need 2*FPS I'm feeding FFmpeg's stdout with raw images at fps 25. So far i have the following command: ffmpeg -y -loglevel info -f lavfi -i aevalsrc=0 -f rawvideo -pix_fmt rgb24 -video_size 1280x72

Re: [FFmpeg-user] Transcode video problem with h264_nvenc

On Wed, Oct 19, 2016 at 2:02 PM, Sven C. Dack wrote: > On 19/10/16 12:39, Gabor Alsecz wrote: > >> Got it, thanks for your hints! >> What i really try to achieve here to find a good command line option or a >> very similar one i can implement in my code where feeding FF

Re: [FFmpeg-user] Transcode video problem with h264_nvenc

On Wed, Oct 19, 2016 at 1:17 PM, Moritz Barsnick wrote: > On Wed, Oct 19, 2016 at 11:46:33 +0200, Gabor Alsecz wrote: > > ffmpeg -i perspective1440.mp4 -c:v h264_nvenc -profile:v high -vf > > format=nv12 -qp 0 -f h264 - > perspective1440_out_nvenc.mp4 > [...] > >

[FFmpeg-user] Transcode video problem with h264_nvenc

Dear All, I try to transcode a video with h264_nvenc codec with the following command (including stdout/pipe, Windows): ffmpeg -i perspective1440.mp4 -c:v h264_nvenc -profile:v high -vf format=nv12 -qp 0 -f h264 - > perspective1440_out_nvenc.mp4 *Output:* ffmpeg version N-81960-g1bda0ee Copyright