AV_CODEC_ID_NONE   32 3rdparty/include/ffmpeg_/libavcodec/old_codec_ids.h     CODEC_ID_NONE = AV_CODEC_ID_NONE,
AV_CODEC_ID_NONE 1548 modules/videoio/src/cap_ffmpeg_impl.hpp     while (tags->id != AV_CODEC_ID_NONE)
AV_CODEC_ID_NONE  316 modules/videoio/src/ffmpeg_codecs.hpp     { AV_CODEC_ID_NONE, 0 },