[FFmpeg-devel] [PATCH v2] ffmpeg: add per-stream input option drop_changed

[James Almer]

On 3/16/2025 4:18 AM, Gyan Doshi wrote:
> This is a replacement in ffmpeg for the deprecated avcodec flag AV_CODEC_FLAG_DROPCHANGED.
> 
> This option is meant to be used when the filtergraph should not be
> reinited upon input parameter changes as that leads to loss of state
> in the filtergraph potentially leading to broken or aborted output,
> e.g. inserting of silence with first_pts specified in aresample.
> 
> Generally useful to avoid corrupted yet decodable packets in live
> streaming inputs.
> 
> This option when enabled takes precedence over reinit_filters

How does this differ from simply setting reinit_filter to false, if what 
you want is the filtergraph to not be reinitialized?

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