On 17/02/2025 17:19, Romain Beauxis wrote:
libavcodec/decode.c: intercept `AV_PKT_DATA_METADATA_UPDATE` packet extra data, attach them to the next decoded frame.The metadata needs to be cached because there is no guarantee that each packet will generate a decoded frame immediately. `AV_PKT_DATA_METADATA_UPDATE` does not seem used in `libavcodec` at the moment so regression risks seem low. This generic mechanism could be reused to support more in-band metadata update in the future.
Much cleaner than before, thanks.Which packets will not generate a decoded frame immediately? When it comes to audio, all of them should output something immediately. The code is correct, metadata updates could occur on B-frames in video. Just wondering.
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