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Introduction

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The C3V project source code and the patches of the GStreamer and FFmpeg can be obtained from GitHub. If your GitHub has not updated the patches yet, you can also use the file provided below:📎gst1

View file
namegst1-plugins-good-1.20.1.diff
📎ffmpeg

View file
nameffmpeg-4.4.2.diff

Config

Apply the patches

Here we assume that you have already configured GStreamer and FFMPEG in the buildroot and have built it successfully.

GStreamer

Apply the gst1-plugins-good-1.20.1.diffto <buildroot>/output/build/gst1-plugins-good-1.20.1/by the command:

Code Block
patch -p1 < gst1-plugins-good-1.20.1.diff

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Code Block
languagebash
make gst1-plugins-good-rebuild

The modified library is libgstvideo4linux2.so.

FFmpeg

Apply the ffmpeg-4.4.2.diff to <buildroot>/output/build/ffmpeg-4.4.2/ by command:

Code Block
languagebash
patch -p1 < ffmpeg-4.4.2.diff

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Code Block
languagebash
make ffmpeg-rebuild

The modified library is libavcodec.so*.

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panelIconIdatlassian-info
panelIcon:info:
bgColor#E6FCFF

If can not find the directory in the buildroot, please check the package on the menuconfig and reconfigure it.

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Test sample(please decompress it for use):📎v4l2

View file
namev4l2_vsi_sample.tar.gz

This test needs a YUV source file, you can use the GStreamer to generate one:

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The command will encode the file 1080p.yuv to a file called stream.h264.

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The file can be played by PC tools like PotPlayer and VLC media player.

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The command will decode the file stream.h264 to a file called test.yuv.

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The file can be played by PC tools like Elecard YUV viewer and YuvEye.

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