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Codec and pixel formats CODEC_ID_MPEG1VIDEO and PIX_FMT_YUV420P

The CODEC_ID_MPEG1VIDEO and PIX_FMT_YUV420P constants are part of the FFmpeg library, which is a popular open-source library for working with audio and video. These constants are used to identify specific codecs and pixel formats that can be used when processing audio and video data.

If you are getting an error involving these constants, it could be due to a number of factors. Some possible causes of the error could include:

  • Missing or incorrect include statement: Make sure that you have included the necessary FFmpeg header files in your source code, and that the include statements are correct. For example, to use the CODEC_ID_MPEG1VIDEO and PIX_FMT_YUV420P constants, you would need to include the avcodec.h header file.
  • Linking errors: If you are using a pre-built version of the FFmpeg library, make sure that you have linked your project to the correct version of the library. If you are building FFmpeg from source, make sure that the library was built correctly and that your project is linking to the correct library file.
  • Compatibility issues: Make sure that you are using compatible versions of the FFmpeg library and your compiler. Some versions of the library may not work with certain compilers, or may require certain compiler flags to be set.
  • Incorrect usage: Make sure that you are using the CODEC_ID_MPEG1VIDEO and PIX_FMT_YUV420P constants correctly in your code. For example, make sure that you are using them in the correct context and with the correct data types.

Also checkout the stackoverflow answer

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