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H264 encoded video is jittering

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H264 encoded video is jittering

Postby gabi » Tue May 20, 2014 12:03 pm

Dear All,

I have installed libx264 in my Ubuntu computer and cross compiled it for ARM cortex A8 with Neon and linux as follows:

./configure --prefix=/home/user/ti-dvsdk_dm3730-evm_4_02_00_06/ffmpeg/ffmpeg-2.2.2 --host=arm-none-linux-gnueabi --cross-prefix=/home/user/CS/arm-2009q1/bin/arm-none-linux-gnueabi- --bindir=bin --enable-shared --enable-static --disable-thread --disable-opencl --extra-cflags="-march=armv7-a -mfloat-abi=softfp -mfpu=neon -mtune=cortex-a8 -ftree-vectorize -ffast-math -flax-vector-conversions"

make install

libx264.so.142 was generated successfully

After that I have installed ffmpeg and compiled as follows:

./configure --enable-cross-compile --cross-prefix=/home/user/CS/arm-2009q1/bin/arm-none-linux-gnueabi- --enable-libx264 --enable-gpl --arch=arm --target-os=linux --prefix="/home/user/ti-dvsdk_dm3730-evm_4_02_00_06/ffmpeg/ffmpeg-2.2.2" --bindir="/home/user/ti-dvsdk_dm3730-evm_4_02_00_06/ffmpeg/ffmpeg-2.2.2/bin" --libdir="/home/user/ti-dvsdk_dm3730-evm_4_02_00_06/ffmpeg/ffmpeg-2.2.2/lib"--incdir="/home/user/ti-dvsdk_dm3730-evm_4_02_00_06/ffmpeg/ffmpeg-2.2.2/include/" --cc=/home/user/CS/arm-2009q1/bin/arm-none-linux-gnueabi-gcc --extra-cflags="-march=armv7-a -mfloat-abi=softfp -mfpu=neon -mtune=cortex-a8 -ftree-vectorize -ffast-math -flax-vector-conversions"


Examples were compiled successfully
When I am running on my target the example avcodec with mpg
./avcodec mpg
The output video stream is smooth and fluent.
When I am running on my target the example avcodec with h264
./avcodec h264
The output video stram is jittering and it looks like frames are not displayed in the correct order.

Can anyone please help?
Posts: 1
Joined: Tue May 20, 2014 11:55 am

Re: H264 encoded video is jittering

Postby llogan » Wed May 21, 2014 5:46 pm

What is avcodec?
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Location: Alaska

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