Michael Toon <michael.toon@...> writes: > I am using the encoder libs to encode MJPEG video > which I am packaging up to send via RTP. The > encoded bit stream that I generate only appears > to have a single quantization table defined, > however the RTP payload format specifies that if > using custom quantization tables there should be > two separate quantization tables for luma and > chroma.
Could you point me to the paragraph in the rfc where this is suggested? I seem to have missed it... > Having separate tables seems to make sense to try > and gain most encoding efficiency, especially > since I need to transmit two tables regardless. > Is there a reason why the MJPEG codec only > generates a single table (I don't know.) > is there an option that I can to use separate > tables? Please see AVCodecContext->intra_matrix (for luma) and av_codec_set_chroma_intra_matrix(). > This message contains confidential information Please remove this from emails sent to a public email list. Carl Eugen _______________________________________________ Libav-user mailing list [email protected] http://ffmpeg.org/mailman/listinfo/libav-user
