[FFmpeg-user] av_interleaved_write_frame(): Broken pipe with drawtext

Hi, I'm having trouble getting ffserver & ffmpeg working with drawtext. I receive the error "av_interleaved_write_frame(): Broken pipe" and then ffmpeg stops. ffserver configuration: > HTTPPort 80 > > HTTPBindAddress 0.0.0.0 > > MaxClients 10 > > MaxBandwidth 500 > > > > > File

[FFmpeg-user] audio noise filtering

Hi, I know almost nothing about audio filtering, and I wanted to better understand more about it. I would like to filter out some low level hum/noise from an mp4 file (h264/aac) and I understand there are different types of filters, for example, a noise gate. Can someone provide me with

Re: [FFmpeg-user] Overlay one subtitle stream and copy another

Hans Carlson inbox.com> writes: > In fact, it appears the fifo for the subtitle stream isn't > needed, because this works as well: > >'[0:v]fifo[vid];[vid][0:3]overlay` Yes, I thought so. > My test file is only 22 secs long... is there a chance I'd > need the fifo on the subtitle stream

Re: [FFmpeg-user] Overlay one subtitle stream and copy another

On Mon, 7 Mar 2016, Carl Eugen Hoyos wrote: I suspect the stream specifiers [0:v] and [0:3] ensure that fifo is not used. I am not sure what the correct usage is but you could try '[0:v}fifo[v];[0:3]fifo[o];[v][o]overlay` (untested) Thanks, that seems to work. No more buffer overflow

Re: [FFmpeg-user] Converting SDP/RTP files to WAV

kongslund.net> writes: > $ ffmpeg -loglevel debug -i input.sdp -i input.rtp output.wav I am sorry but I don't understand: There should be exactly one input and one output in your command line: Either ffmpeg -i input.sdp out.wav or ffmpeg -i input.rtp out.wav rtp normally looks this: ffmpeg

Re: [FFmpeg-user] FFmpeg Intel icl compile (configure) issue

NoMercy gmail.com> writes: > > My next suggestion is to test the following (one line): > > /bin/sh -c "icl -nologo -Qdiag-error:4044,10157 -D_USE_MATH_DEFINES > > -Qms0 -Qvec- -Qsimd- -GS -fp:precise -c -Fo./test.o ./test.c" > still no errors. There should be an icl option for verbose mode,

Re: [FFmpeg-user] Overlay one subtitle stream and copy another

Hans Carlson inbox.com> writes: > I changed my original command to use this filter_complex: > >-filter_complex 'fifo; [0:v][0:3]overlay' I suspect the stream specifiers [0:v] and [0:3] ensure that fifo is not used. I am not sure what the correct usage is but you could try

Re: [FFmpeg-user] size and bitrate issues with nvidia accelerated transcoding

Hi Sreenath, On Mon, Mar 07, 2016 at 22:28:32 +0530, Sreenath BH wrote: > As can be seen the two outputs differ in the H264 profile(High vs > Main), bitrate, the pixel format and of course the file sizes. Different encoders can have different defaults. It appears that nvenc defaults to "Main",

Re: [FFmpeg-user] Overlay one subtitle stream and copy another

On Mon, 7 Mar 2016, Carl Eugen Hoyos wrote: Hans Carlson inbox.com> writes: Buffer queue overflow, dropping. You can use the fifo filter to avoid these, it will increase memory usage. Probably I'm doing something wrong, but adding the fifo filter didn't help. I'm not exactly sure

Re: [FFmpeg-user] size and bitrate issues with nvidia accelerated transcoding

On 3/7/16, Carl Eugen Hoyos wrote: > Sreenath BH gmail.com> writes: > >> Should I rerun the ffmprg command without the "loglevel quiet" >> and report the output? > > Yes, please. > >> Please suggest. The input file is rather large, and ffmpeg > < console output is likely to be

Re: [FFmpeg-user] Accurate Trimming Without Transcoding

I'm not suggesting to throw away the frames. Keep the frames but set an appropriate start time. That way the "trimmed" frames would be decoded but not displayed. ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org

Re: [FFmpeg-user] Accurate Trimming Without Transcoding

Please see below ... www.macfh.co.uk/CEMH.html > Is it possible to achieve frame accurate trimming of clips without > transcoding? > > e.g. if I have a 50 fps file with a fixed gop of 50 frames > and I'd like to > trim the first 24 frames without transcoding. Shouldn't

Re: [FFmpeg-user] Failed to build ffmpeg for iOS due to GNU assembler not found

Mallikharjuna Rao krify.net> writes: > I have downloaded gas-preprocessor.pl from the link > (http://github.com/yuvi/gas-preprocessor/ ) Please use https://github.com/FFmpeg/gas-preprocessor > and copy it to /opt/local/bin I always copy it into /usr/local/bin Carl Eugen

[FFmpeg-user] Failed to build ffmpeg for iOS due to GNU assembler not found

Hello Team: I want to build ffmpeg iOS by installing mac ports on mac mini in OSX10.11.3 using xcode 7.2.1, I have downloaded gas-preprocessor.pl from the link (http://github.com/yuvi/gas-preprocessor/ ) and copy it to /opt/local/bin and run to make the all files. But failed with

Re: [FFmpeg-user] size and bitrate issues with nvidia accelerated transcoding

Sreenath BH gmail.com> writes: > Should I rerun the ffmprg command without the "loglevel quiet" > and report the output? Yes, please. > Please suggest. The input file is rather large, and ffmpeg < console output is likely to be very long. Then cut the repeating lines in the middle of the

Re: [FFmpeg-user] Accurate Trimming Without Transcoding

Robert Nagy gmail.com> writes: > if I have a 50 fps file with a fixed gop of 50 frames and > I'd like to trim the first 24 frames without transcoding. Sorry if I misunderstand: If all frames from the second to 49th depend on the first frame you cannot cut away the first 24 frames: It would

Re: [FFmpeg-user] size and bitrate issues with nvidia accelerated transcoding

Hi Carl, Should I rerun the ffmprg command without the "loglevel quiet" and report the output? Please suggest. The input file is rather large, and ffmpeg console output is likely to be very long. thanks, Sreenath On 3/7/16, Carl Eugen Hoyos wrote: > Carl Eugen Hoyos

Re: [FFmpeg-user] size and bitrate issues with nvidia accelerated transcoding

Carl Eugen Hoyos ag.or.at> writes: > Sreenath BH gmail.com> writes: > > > ffmpeg -i large.mp4 -loglevel quiet -c:a aac -c:v nvenc > > -pix_fmt yuv420p -movflags +faststart out.mp4 > > Always provide the complete, uncut console output when > asking for support here. Sorry, I forgot: Never

Re: [FFmpeg-user] size and bitrate issues with nvidia accelerated transcoding

Sorry. Here is the unedited output from ffprobe. -- Original file (source file) root@ip-172-21-13-223:/tmp# ffprobe large.mp4 ffprobe version 3.0.git Copyright (c) 2007-2016 the FFmpeg developers built with gcc 4.8.5 (GCC) 20150623 (Red Hat 4.8.5-4) configuration:

Re: [FFmpeg-user] documentation in spanish

juan carlos Rebate gmail.com> writes: > Is there somewhere you can find updated documentation > in Spanish? Most likely not. > the questions raised here have not had good answers Did you consider that some of the questions (like yours) are not really "good" and therefore very difficult or

Re: [FFmpeg-user] size and bitrate issues with nvidia accelerated transcoding

Sreenath BH gmail.com> writes: > ffmpeg -i large.mp4 -loglevel quiet -c:a aac -c:v nvenc > -pix_fmt yuv420p -movflags +faststart out.mp4 Always provide the complete, uncut console output when asking for support here. Carl Eugen ___ ffmpeg-user

Re: [FFmpeg-user] capturing television rtp

juan carlos Rebate gmail.com> writes: > my Internet provider also offers me television (rtp), I have used > ffmpeg to capture a documentary with a duration of one hour, > transmitted atraves of one of these channels. > I have tried to preserve the codec of video and the quality, have > tried to

Re: [FFmpeg-user] Overlay one subtitle stream and copy another

Hans Carlson inbox.com> writes: > Buffer queue overflow, dropping. You can use the fifo filter to avoid these, it will increase memory usage. Carl Eugen ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org