[FFmpeg-user] Configure error with Android NDK clang compiler

I successfully build and run in production ffmpeg on Android (arm and x86) compiled with Android NDK's gcc. Recently, Android deprecated gcc and is pushing every dev to migrate to clang. I'm getting some issues while compiling ffmpeg with Android NDK's clang and this is the first one I encounter:

[FFmpeg-user] mp4 encode 1 frame out of sync

Hi, I am encoding a Quicktime Prores file to mp4 using the below settings. In the resulting file, the audio is 1 frame out of sync, audio comes in 1 frame early, cutting off the first frame and adding 1 silent frame to the end (see attached screen grab)."F:\ffmpeg copy\ffmpeg-2016011

Re: [FFmpeg-user] Arvato proxy file

Bouke (VideoToolShed videotoolshed.com> writes: > This file comes from an Arvato asset management system. Does the Arvato asset management system allow playback of the file 39014.mxf you uploaded? > can someone please post this on the Develop list? Thank you for uploading the sample and

Re: [FFmpeg-user] Let ffmpeg pick correct fps from stdin

On Fri, Jan 15, 2016 at 09:56:43 +, Carl Eugen Hoyos wrote: > You should not use the input option "-r" unless you > know exactly what you do, always use "-framerate". I don't think all demuxers have implemented "-framerate" yet: $ ffmpeg -framerate 1 -probesize 100k -i

Re: [FFmpeg-user] Arvato proxy file

- Original Message - From: "Carl Eugen Hoyos" To: Sent: Friday, January 15, 2016 11:06 AM Subject: Re: [FFmpeg-user] Arvato proxy file Bouke (VideoToolShed videotoolshed.com> writes: This file comes from an Arvato asset management system.

Re: [FFmpeg-user] Reading directly from .iso DVD image

On 2016-01-13, at 11:22, Nicolas George wrote: > Le duodi 22 nivôse, an CCXXIV, Etienne Desautels a écrit : >> After more tests I hit some problems with some videos: >> ffmpeg -hide_banner -i /mnt/archivescollection/test_file.iso -f null -af >> ebur128=peak=true:framelog=verbose -vf

Re: [FFmpeg-user] Let ffmpeg pick correct fps from stdin

On 15/01/2016 10:52, Moritz Barsnick wrote: On Fri, Jan 15, 2016 at 10:11:09 +0100, Moritz Barsnick wrote: Would it be worth an attempt to add an option to ffmpeg to take the timestamps from "arrival time" (time of day)? I'll have a look at this - sometime. Oh, sorry, that option does exist:

Re: [FFmpeg-user] Compiling ffmpeg with libx264

Sorry for the vague error. Here is the exact error message when I type "./configure --enable-shared" The error is "unknown system pc-msys, edit the configure". -- View this message in context: http://ffmpeg-users.933282.n4.nabble.com/Compiling-ffmpeg-with-libx264-tp4674076p4674091.html Sent

Re: [FFmpeg-user] Configure error with Android NDK clang compiler

I have not compiled FFMPEG for android using toolchain, however, I had a tough time doing the same with opencv-JNI. This question, asked in stackoverflow might help you. http://stackoverflow.com/questions/34246265/opencv-ann-mlp-training-in-android I read your ndk building procedure, don't you

[FFmpeg-user] ffmpeg Buffer - Delphi XE2 Question

Hi. I have a problem with the buffer and delay the image (MPEG-4) ( PTZ Camera) is about 2 seconds delay after PTZ moved positions always. How can set the video buffor to 0ms? PTZ Camera is in the LAN - no internet . When i change PTZ position the camera from browser then there is no delay. I

[FFmpeg-user] dvb_teletext -> .srt fails?

similar to https://lists.ffmpeg.org/pipermail/ffmpeg-user/2015-June/027029.html and https://trac.ffmpeg.org/ticket/3025 My "quest" is to convert an dvb_teletext stream to some human readable (ex: .srt) format. Ex: using this file: https://trac.ffmpeg.org/attachment/ticket/3025/sbs.2.5M.ts I

Re: [FFmpeg-user] Configure error with Android NDK clang compiler

Marco Pracucci spreaker.com> writes: > I'm getting some issues while compiling ffmpeg with Android NDK's clang and > this is the first one I encounter: > *GNU assembler not found, install/update gas-preprocessor* I can reproduce the error message. I decided to install gas-preprocessor and this

Re: [FFmpeg-user] dvb_teletext -> .srt fails?

On Fri, 15 Jan 2016, Roger Pack wrote: similar to https://lists.ffmpeg.org/pipermail/ffmpeg-user/2015-June/027029.html and https://trac.ffmpeg.org/ticket/3025 My "quest" is to convert an dvb_teletext stream to some human readable (ex: .srt) format. Ex: using this file:

Re: [FFmpeg-user] Configure error with Android NDK clang compiler

Carl Eugen, thanks for your reply. > I decided to install gas-preprocessor and this issue disappeared. For the sake of knowledge, I can't understand why I do need a gas-preprocessor to run the configure. If I create a file containing the same exact AS code run through "check_as" and run the same

[FFmpeg-user] MPD file creation using FFMpeg fails validation check

TL;DR DASH manifest file (mpd) created using ffmpeg fails the validation test and also fails to play. This is what I did: Step 1: Transcoded 2 video files with different resolution and bitrate (without audio stream) *​​ffmpeg -y -i file1.mp4 -c:v libvpx -vf scale=-2:270 -quality good

Re: [FFmpeg-user] Compiling ffmpeg with libx264

On Thu, Jan 14, 2016 at 07:14:26 -0500, Krishnan Unni wrote: > successfully. But when I try to compile x264 lib based on the guide > provided in ffmpeg wiki it's failing saying "could not identify os" I can't even find that string or a similar one in the libx264 source tree. (Using 0c21480 from

Re: [FFmpeg-user] Let ffmpeg pick correct fps from stdin

On Fri, Jan 15, 2016 at 09:32:17 +0100, Jean-Marie Baran wrote: > Just to make sure, this means that I have no other choice than to > specify "-r myfps" before the input video stream ? Which is annoying if you don't know the frame rate or if it's VFR. Would it be worth an attempt to add an

Re: [FFmpeg-user] [FFMPEG] Audio/Video Syncing

Hi Carl, Good afternoon. Thank you very much for the reply. On 1/13/2016 9:49 PM, Carl Eugen Hoyos wrote: Guillermo Martinez <94dlve1izy52e5t gmail.com> writes: ffmpeg -y -ihttp://192.168.0.11:8090/VIDEO_CAM1.mpg -itsoffset 1.0 -ihttp://192.168.0.11:8090/AUDIO.mp2 -map 0:0 -map 1:0

Re: [FFmpeg-user] Let ffmpeg pick correct fps from stdin

Input #1, mjpeg, from 'pipe:': Duration: N/A, bitrate: N/A Stream #1:0: Video: mjpeg, yuvj420p(pc, bt470bg/unknown/unknown), 720x480 [SAR 1:1 DAR 3:2], 25 tbr, 1200k tbn, 25 tbc mjpeg has no timestamps and therefore no framerate, 25fps is the default. The mjpeg demuxer understands

Re: [FFmpeg-user] Let ffmpeg pick correct fps from stdin

On Fri, Jan 15, 2016 at 10:11:09 +0100, Moritz Barsnick wrote: > Would it be worth an attempt to add an option to ffmpeg to take the > timestamps from "arrival time" (time of day)? I'll have a look at this > - sometime. Oh, sorry, that option does exist: "-use_wallclock_as_timestamps". If I

Re: [FFmpeg-user] Let ffmpeg pick correct fps from stdin

Jean-Marie Baran ama.bzh> writes: > > The mjpeg demuxer understands the "framerate" option, > > you can use it to specify a framerate. > > > Just to make sure, this means that I have no other choice > than to specify "-r myfps" before the input video stream ? You should not use the input