Encoding only. Allow encoders to output packets that do not contain any
encoded data, only side data.
Some encoders need to output such packets, e.g. to update some stream
parameters at the end of encoding.
All callers are strongly recommended to set this option to 1 and update
their code to deal with such packets, since this behaviour may become
always enabled in the future (then this option will be deprecated and
later removed). To avoid ABI issues when this happens, the callers should
use AVOptions to set this field.
Encoding only. Allow encoders to output packets that do not contain any encoded data, only side data.
Some encoders need to output such packets, e.g. to update some stream parameters at the end of encoding.
All callers are strongly recommended to set this option to 1 and update their code to deal with such packets, since this behaviour may become always enabled in the future (then this option will be deprecated and later removed). To avoid ABI issues when this happens, the callers should use AVOptions to set this field.