problem about x264-Collection of common programming errors
user1863947
ffmpeg video-conversion x264
When I convert an EXR file sequence with x264 using FFmpeg and convert the colorspace from linear to SRGB (with gamma 0.45454545) I get some heavy banding issues (most visible on a dark gradient).Here is the ffmpeg command I use:C:/ffmpeg.exe -y -i C:/seq_v001.%04d.exr -vf lutrgb=r=gammaval(0.45454545):g=gammaval(0.45454545):b=gammaval(0.45454545) -vcodec libx264 -pix_fmt yuv420p -preset slow -crf 18 -r 25 C:/out.movHere is the output:ffmpeg version N-47062-g26c531c Copyright (c) 2000-2012 the F
slhck
ffmpeg video-encoding x264
When I convert an EXR sequence into a QuickTime MOV file using FFmpeg and the x264 codec, it codes the video – but in QuickTime Player and Windows Media Player it’s just black! But when I open it up with VLC I can see the image and it looks fine. When I try the same thing with a JPG sequence instead of EXR it works perfectly! Does anyone have an idea what that could be?Here is my FFmpeg code:ffmpeg -y -i C:/seq_v001.%04d.exr -c:v libx264 -preset slow -crf 17 C:/out.movHere is the console output:
zeroasterisk
iphone ffmpeg video-encoding x264
There are a lot of questions on this topic, and I’ve read most of them and most of the google search results I could come up with.When I use FFMPEG to convert a FLV to a iphone3 compatble MP4 file, it just doesn’t preserver enough of the quality. Yes, I’ve worked the hell out of -sameq and -b and -bt settings, text just isn’t readable.Next I tried to split the video out and process it directly, using these instructions: https://sites.google.com/site/linuxencoding/x264-encoding-guideThe problem
Tishu
android encoding ffmpeg arm x264
I recently built a Video encoding class that runs on Android using ffmpeg and native code. I am surprised by the time it takes to encode a video, about 1 frame / second at best. I have tried with x264 and settings optimised for speed and with mpeg as well – no real difference.The x264 library now has support for ARM architecture and is meant to be quite efficient on these boasting over 20fps encoding speed. I am not sure I am using it correctly. Here the script I use for compiling:./configure —
PaulJ
ffmpeg x264
I’m trying to compile the newest version of ffmpeg (in CentOS 5.3). I first downloaded the latest version of libx264, compiled it with –enable-static and installed it in /usr/local/. However, when I then compile ffmpeg I get this error message:libavcodec/libavcodec.a(libx264.o): In function `X264_init’: /usr/local/src/ffmpeg/libavcodec/libx264.c:494: undefined reference to `x264_encoder_open_125′ collect2: ld returned 1 exit status make: *** [ffmpeg_g] Error 1Searching on the net, I see that th
jtrim
iphone gcc ffmpeg x264
I’m trying to compile x264 for use in an iPhone application. I see there are instructions on how to compile ffmpeg for use on the platform here: http://lists.mplayerhq.hu/pipermail/ffmpeg-devel/2009-October/076618.html , but I can’t seem to find anything this complete for compiling x264 on the iPhone. I’ve found this source tree: http://gitorious.org/x264-arm that seems to have support for the ARM platform.Here is my config line:./configure –cross-prefix=/usr/bin/ –host=arm-apple-darwin10 —
Erik
c++ gcc g++ cygwin x264
I want to use libx264 in one of my projects on windows. I compiled x264 with cygwin including the shared and static library. Everythin works out fine, also the static and dynamic libraries are properly installed in cygwin.When trying to compile another project that uses libx264 (gcc … -lx264) I get an error:/cygdrive/c/Users/Erik/workspace/test/Debug/../main.cpp:406: undefined reference to `x264_param_default_preset(x264_param_t*, char const*, char const*)’ /cygdrive/c/Users/Erik/workspace/tes
Sureshkumar Menon
ffmpeg android-ndk libavcodec x264 libx264
i am trying build android-ffmpeg-x264 downloaded from git. Link https://github.com/halfninja/android-ffmpeg-x264After running ./config_make_everything.sh i am getting following errorERROR: libx264 not foundIf you think configure made a mistake, make sure you are using the latest version from Git. If the latest version fails, report the problem to the [email protected] mailing list or IRC #ffmpeg on irc.freenode.net. Include the log file “config.log” produced by configure as this will he
Boris Strandjev
centos x264
I get the follwoing error while trying to compile x264 on centos 5.9. If anyone can help i’ll much appreciate it :gcc -o x264 x264.o input/input.o input/timecode.o input/raw.o input/y4m.o output/raw.o output/matroska.o output/matroska_ebml.o output/flv.o output/flv_bytestream.o filters/filters.o filters/video/video.o filters/video/source.o filters/video/internal.o filters/video/resize.o filters/video/cache.o filters/video/fix_vfr_pts.o filters/video/select_every.o filters/video/crop.o filters/v
KaiK
ffmpeg video-encoding x264 mpeg-4 libavformat
I’ve been trying to set a H264 video stream created from images, into an MPEG4 container. I’ve been able to get the video stream from images successfully. But when muxing it in the container, I must do something wrong because no player is able to reproduce it, despite ffplay – that plays the video until the end and after that, the image gets frozen until the eternity -.The ffplay cannot identify Duration neither bitrate, so I supose it might be an issue related with dts and pts, but I’ve searche
Tishu
android compilation include ffmpeg x264
I have been trying to find a solution online for a couple of days with no luck. I am using Ubuntu and trying to compile the latest FFMPEG stable version (1.0.1) with x264 support. I made sure I uninstalled any existing x264 then I downloaded the latest x264 source and compiled it with the following config:./configure –prefix=$PREFIX \–enable-shared \–enable-static \–disable-gpac \–extra-cflags=” -I$ARM_INC -fPIC -DANDROID -fpic -mthumb-interwork -ffunction-sections -funwind-tables -fno-shor
Ivan Zamylin
video ffmpeg encoding mp4 x264
I need x264 for my project. I have one at /opt/local/bin/x264, but when I execute the following command:x264 –qpfile cuepoints.qp –output output.mp4 input.mp4it says:x264 [error]: not compiled with MP4 output supportI decided to compile x264 from the source. I downloaded the source from http://www.videolan.org/ (git://git.videolan.org/x264.git). Now I do:cd x264 ./configure –enable-mp4-outputAnd x264 says:Unknown option –enable-mp4-output, ignoredAnd indeed, if I open configure file, there i
George Cummins
c++ c cross-compiling x264 i386
How would I compile the x264 library for the i386 architecture? Usually to force an architecture I would use the follow command:./configure CC=”gcc -arch i386″ CXX=”g++ -arch i386″But it doesn’t seem to work for x264.To compile x264 I configure it and make it, this produces an x86_64 library. When I attempt to use the above command to force the i386 architecture I receive the following message: Unknown option CC=gcc -arch i386, ignored Unknown option CXX=g++ -arch i386, ignoredThe configure scri
niuu
vlc mpeg x264 dash
I’m trying to build the DashEncoder code which I downloaded from github https://github.com/slederer/DASHEncoder. Well, I followed all the instructions given in the how to compile dash file. installed Gpac n X264 and compiled both successfully. Then did make of Dashencoder and ran it as ./Dashencoder. But I found some issues in it. Got this log :==========DASH ENCODER=============== Unknown option in resourcefile : sql-pw : current encoder x264 YES x264 encoding @ 300 kbps: Pass 1 x264: x264 –p
Kuf
ffmpeg debian x264
I built and installed FFMPEG as said here.But when I do this command to run the video:ffmpeg -i “source.mkv” -an -b 700k -r 25 -vcodec libx264 “output.mp4″I get this error: unknow encoder : libx264I use Debian Squeeze. How can I fix this? Please helpThanks!!
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