OK, I've narrowed it down to 2 solutions: 1) (the one that doesn't involve changing FFmpeg's code) I can make a copy of DASHContext struct, maintain any changes that will be made, and set the bitrate by DASHContext *c = fmt_ctx->priv_data before calling av_write_trailer 2) Can setting the bitrate be done by adding a AVOption code to DASH muxer and later calling any av_opt_set_* function (the difficult part is that the bitrate must be set for an array of dynamically allocated OutputStreams inside DASHContext) ?
-- Best regards Przemysław Sobala On Thu, Feb 16, 2017 at 10:07 AM, Przemysław Sobala < przemyslaw.sob...@gmail.com> wrote: > Hello > > I'm wondering, if there's a way to set representation's bandwidth > (bitrate) parameter when encoding with libx264 with constant quality (crf)? > In my code I'm calculating stream's bitrate by adding muxed packet sizes > but in the end I cannot pass it to the DASH muxer. > > I thought the best way would be to set the final bitrate before calling > av_write_trailer function (because internally it calls > dash_write_trailer->dash_flush->write_manifest) but DASHContext structure > is initialized earlier (with dash_init function) with default bitrates set > and also it's not available via the API - I can access it by > AVFormatContext->priv_data but it's type is uknown - void* - and casting is > unavailable since this struct if for internal use only. > > > -- > Best regards > Przemysław Sobala >
_______________________________________________ Libav-user mailing list Libav-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/libav-user
