Re: [FFmpeg-user] propagation of frames in a filter complex

Hey, Ted, On 04/16/2020 12:11 PM, Ted Park wrote: Huh, I didn't know you could reuse filter pad labels. What do you mean? split[A]select='not(eq(mod(n+1\,5)\,3))' [C]interleave [B]split[D]select='eq(mod(n+1\,5)\,2)'[F]blend[D] [E]select='eq(mod(n+1\,5)\,3)'[G] I

Re: [FFmpeg-user] Requesting to add a new book to the "Books about FFmpeg" section?

Oh interesting, I appreciate you explaining that to me. On Thu, Apr 16, 2020 at 6:03 PM Carl Eugen Hoyos wrote: > Am Do., 16. Apr. 2020 um 14:59 Uhr schrieb John Riselvato > : > > > So my question is, is it possible to add this book to the "Books about > > FFmpeg" found here:

Re: [FFmpeg-user] No such file or directory

Thank you so much! Despite the fact that everything appeared fine in the original text and in the pasted text, it does appear that it must have been some other blank character. I manually pressed backspace and then the space key in each segment of the command, and the error disappeared. I would

Re: [FFmpeg-user] concat demuxer filter_complex (fade)

‐‐‐ Original Message ‐‐‐ On Thursday, April 16, 2020 3:16 PM, Ted Park wrote: > Hi, > > > Actually I don't see why it should be complicated. Maybe we're writing > > about different things. You're still writing about the concat demuxer but I > > already came to the conclusion that its

Re: [FFmpeg-user] propagation of frames in a filter complex

Mark Filipak wrote > By the way, 'interleave' not recognizing end-of-stream (or 'select' not > generating end-of-stream, > whichever the cause) isn't a big deal as I'll be queuing up transcodes -- > as many as I can -- to run > overnight. But it would be nice to find some way to terminate,

Re: [FFmpeg-user] Testing transcode speeds on Raspberry Pi 4

> I don't know. > But until not-so-long-ago, hardware encoding was limited to smaller > resolutions on more expensive gpu's, so I wonder if the rpi really > supports 4k encoding. > And it would be a good explanation for the behaviour you see. > Makes sense, though until seeing your and Ted's

Re: [FFmpeg-user] Testing transcode speeds on Raspberry Pi 4

Am Fr., 17. Apr. 2020 um 00:02 Uhr schrieb MediaMouth : > > > On Apr 16, 2020, at 2:26 PM, Carl Eugen Hoyos wrote: > > > >> The following worked w/o errors (though it didn't improve the speed) > >>ffmpeg -y -i SourcePath -s 1280*720 -b:v 9000k -c:v h264_omx > >> DestPath > >> > >> The

Re: [FFmpeg-user] Flutter FFmpeg

Am Do., 16. Apr. 2020 um 05:58 Uhr schrieb Ted Park : > Someone else recently uploaded an iPhone recording that qtfaststart > completely fubar'ed Could you point me to that file, I must have missed it. Thank you, Carl Eugen ___ ffmpeg-user mailing

Re: [FFmpeg-user] Requesting to add a new book to the "Books about FFmpeg" section?

Am Do., 16. Apr. 2020 um 14:59 Uhr schrieb John Riselvato : > So my question is, is it possible to add this book to the "Books about > FFmpeg" found here: https://ffmpeg.org/documentation.html There is a git repository: https://git.ffmpeg.org/gitweb/ffmpeg-web.git Send your patch - made with

Re: [FFmpeg-user] Testing transcode speeds on Raspberry Pi 4

> On Apr 16, 2020, at 2:26 PM, Carl Eugen Hoyos wrote: > >> The following worked w/o errors (though it didn't improve the speed) >>ffmpeg -y -i SourcePath -s 1280*720 -b:v 9000k -c:v h264_omx DestPath >> >> The following generated the "deprecated pixel format used" error. > > No. >

Re: [FFmpeg-user] Testing transcode speeds on Raspberry Pi 4

> That's kind of wacky, how did you install ffmpeg? > sudo apt-get install ffmpeg Though it turns out it was pre-installed on the 2020-02-14 kernal v4.19 RPI 4 image Also added > apt-get install libomxil-bellagio-bin > sudo apt-get install

Re: [FFmpeg-user] ffplay options for setting audio volume and locating player windows on the screen

Am Mi., 15. Apr. 2020 um 03:46 Uhr schrieb Michael Glenn Williams : > Thank you for responding. Regarding -volume, i'm just putting 30 > without the %. > Regarding -top and -left, my version of ffplay (the latest MAC OSX > download from the website) Doesn't seem to know these options. (Command

Re: [FFmpeg-user] Testing transcode speeds on Raspberry Pi 4

Am Do., 16. Apr. 2020 um 19:50 Uhr schrieb MediaMouth : > The following worked w/o errors (though it didn't improve the speed) > ffmpeg -y -i SourcePath -s 1280*720 -b:v 9000k -c:v h264_omx DestPath > > The following generated the "deprecated pixel format used" error. No. ("deprecated

Re: [FFmpeg-user] rtsp stream interruption

Am Do., 16. Apr. 2020 um 18:25 Uhr schrieb Ted Park : > > i'd like to know how to configure rtsp as a input, beacause all the >> time it stops after some aleatory time, how to make it stable ? > > i'm using these options: > > > >"-rtsp_transport", "tcp", > >"-i", rtspUrl, > >"-r",

Re: [FFmpeg-user] rtsp stream interruption

thank you so much for your attention ! i'm trying to use -r hopping with that i can limit the framrate on input and about fps i understand that it is used to limit the output for480 frames/minute. My goal is to receive the frames from a rtsp through the pipeline and store that

Re: [FFmpeg-user] rtsp stream interruption

Hi, > sorry for 99, it was just a crazy test that i forgot to remove. I will try to > be more clear, i'm trying to capture each frame from a rtsp stream,so it > works for something like 1 hour or a little more, then it suddenly stops, the > same thing happen when i try on vlc, i open the

Re: [FFmpeg-user] Testing transcode speeds on Raspberry Pi 4

Hey, > Well, without the -vf scale=1280:720,format=yuv420p I get the following error > [swscaler @ 0x222c910] deprecated pixel format used, make sure you did set > range correctly > [h264_omx @ 0x1b31010] Using OMX.broadcom.video_encode > [h264_omx @ 0x1b31010] OMX error 80001000 > [h264_omx @

Re: [FFmpeg-user] No such file or directory

On 2020-04-16 11:04, First Last wrote: /home/ec2-user/ffmpeg-git-20200324-amd64-static/ffmpeg -re -loop 1 -framerate 2 -i /home/ec2-user/banner.png -s 1920x1080 -ab 128k -vcodec libx264 -pix_fmt yuv420p -maxrate 2048k -bufsize 2048k -framerate 30 -g 2 -strict experimental -f flv

Re: [FFmpeg-user] propagation of frames in a filter complex

On 04/16/2020 12:20 PM, pdr0 wrote: This doesn't answer the question in this thread directly; but was the idea still to blend deinterlace the combed frame from telecine selectively ? Yes! (I'm like a terrier with a sock, aren't I? -- mind your feet, Paul. ;-) If the problem is getting the

[FFmpeg-user] No such file or directory

Hello Everyone, I am attempted to run the following command: /home/ec2-user/ffmpeg-git-20200324-amd64-static/ffmpeg -re -loop 1 -framerate 2 -i /home/ec2-user/banner.png -s 1920x1080 -ab 128k -vcodec libx264 -pix_fmt yuv420p -maxrate 2048k -bufsize 2048k -framerate 30 -g 2 -strict experimental

Re: [FFmpeg-user] Testing transcode speeds on Raspberry Pi 4

On Apr 15, 2020, at 10:02 PM, Ted Park wrote: > > Hey, > >> An attempt to do some hardware acceleration... >>> ffmpeg -i path/to/source.mp4 -c:v h264_omx -b:v 9000k -vf >>> scale=1280:720,format=yuv420p path/to/dest.mp4 >> Gave the exact same same results > > That sounds to me like the

Re: [FFmpeg-user] Testing transcode speeds on Raspberry Pi 4

Well, without the -vf scale=1280:720,format=yuv420p I get the following error [swscaler @ 0x222c910] deprecated pixel format used, make sure you did set range correctly [h264_omx @ 0x1b31010] Using OMX.broadcom.video_encode [h264_omx @ 0x1b31010] OMX error 80001000 [h264_omx @ 0x1b31010] err

Re: [FFmpeg-user] rtsp stream interruption

this is the ouput: [2020-4-16_11-14-56-833]stderr: No more output streams to write to, finishing. frame=710175 fps= 67 q=31.4 Lsize=11484914kB time=13:09:05.00 bitrate=1987.2kbits/s dup=331418 drop=0 speed=4.49x video:11484914kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing

Re: [FFmpeg-user] rtsp stream interruption

sorry for 99, it was just a crazy test that i forgot to remove. I will try to be more clear, i'm trying to capture each frame from a rtsp stream,so it works for something like 1 hour or a little more, then it suddenly stops, the same thing happen when i try on vlc, i open the stream on vlc

Re: [FFmpeg-user] rtsp stream interruption

Hi, > i'd like to know how to configure rtsp as a input, beacause all the time it > stops after some aleatory time, how to make it stable ? > i'm using these options: > >"-rtsp_transport", "tcp", >"-i", rtspUrl, >"-r", "15", >"-b:v", "1M", >"-maxrate", "1M", >"-bufsize",

Re: [FFmpeg-user] propagation of frames in a filter complex

To overcome a problem, I'm trying to understand the propagation of frames in a filter complex. The behavior is as though because frame n+1==1 can take the [A][C] path, it does take it & that leaves nothing left to also take the [B][D][F] path, so blend never outputs. I've used 'datascope' in

Re: [FFmpeg-user] propagation of frames in a filter complex

Hey, > Filter graph: > > split[A]select='not(eq(mod(n+1\,5)\,3))' [C]interleave > [B]split[D]select='eq(mod(n+1\,5)\,2)'[F]blend[D] > [E]select='eq(mod(n+1\,5)\,3)'[G] > > What I expected/hoped: > > split[A] 0 1 _ 3 4 [C]interleave 0 1 B 3 4 //5

[FFmpeg-user] rtsp stream interruption

Hello, i'd like to know how to configure rtsp as a input, beacause all the time it stops after some aleatory time, how to make it stable ? i'm using these options: "-rtsp_transport", "tcp", "-i", rtspUrl, "-r", "15", "-b:v", "1M", "-maxrate", "1M", "-bufsize", "2M",

Re: [FFmpeg-user] propagation of frames in a filter complex

On 4/16/20, Mark Filipak wrote: > To overcome a problem, I'm trying to understand the propagation of frames in > a filter complex. > > Filter graph: > > split[A]select='not(eq(mod(n+1\,5)\,3))' [C]interleave > [B]split[D]select='eq(mod(n+1\,5)\,2)'[F]blend[D] >

Re: [FFmpeg-user] ffplay options for setting audio volume and locating player windows on the screen

Thanks everyone for suggesting mpv at https://mpv.io I found this page: https://mpv.io/installation/ then downloaded the build from here: https://laboratory.stolendata.net/~djinn/mpv_osx/ I found the great documentation here: https://mpv.io/manual/master/#low-latency-playback The docs reference

[FFmpeg-user] propagation of frames in a filter complex

To overcome a problem, I'm trying to understand the propagation of frames in a filter complex. Filter graph: split[A]select='not(eq(mod(n+1\,5)\,3))' [C]interleave [B]split[D]select='eq(mod(n+1\,5)\,2)'[F]blend[D] [E]select='eq(mod(n+1\,5)\,3)'[G] What I

Re: [FFmpeg-user] Muxing multiple files and concatenating those outputs

Greg Oliver (12020-04-14): > We currently use ffmpeg to combine 2 streams (telephony codecs) into > mp3/wav/flac, etc.. This is no problem - we use: > > ffmpeg -ar 8000 -y -f mulaw -i calls/example.g711a.ulaw -ar 8000 -f mulaw > -i calls/example.g711b.ulaw -filter_complex

Re: [FFmpeg-user] concat demuxer filter_complex (fade)

Hi, > Actually I don't see why it should be complicated. Maybe we're writing about > different things. You're still writing about the concat demuxer but I already > came to the conclusion that its easier to use the concat filter if you want > to insert transitions, since otherwise you'd have

Re: [FFmpeg-user] concat demuxer filter_complex (fade)

‐‐‐ Original Message ‐‐‐ On Thursday, April 16, 2020 3:48 AM, Ted Park wrote: > Hi, > > > I learned, that it's possible to define multiple inputs and reference then > > later in the filter_complex to the different inputs like this: > > ffmpeg -i vid1.mkv -i vid2.mkv -i vid3.mkv

[FFmpeg-user] Requesting to add a new book to the "Books about FFmpeg" section?

Hello everyone, Yesterday I released my first programming book: "The FFmpeg Bible - 112 Questions Answered: Edit Audio & Video Like a Pro for Youtube and Social Media" "This is the ultimate FFmpeg programmers guide for users at any level. Readers at the novice level can gracefully learn FFmpeg