On Wed, May 11, 2022 at 6:24 AM Aleksei Komarov <[email protected]> wrote:
> Hi, > I'm encoding VFR frame sequence to Constant Frame Rate output stream (in > real-time) > E.g. to maintain 60 fps I have to DUPLICATE frames from 30 fps stream (or > any VFR video streams). > To do this I`m copying the same frame binary data and feed it to > avcodec_receive_packet() once again. (It works but is not optimal) > What is the proper way to tell the encoder that the new frame is the same > as the last one besides timestamp data (PTS/DTS). In other words how > to duplicate last frame in the stream without reencoding the frame again? > I've seen this type of video ( generated by OBS ) where MANY frames were > really duplicated, where pkt_size=48 or lower! > I'm just shooting in the dark, but what if you don't focus on the AVFrame data but on saving a copy of the AVPacket of the previous frame after it is encoded? In that way, you could avoid calling the whole encoding process again. Just guessing. -- Gustav Gonzalez [email protected]
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