Support for additional prediction modes

[Mohammad Haris Baig]

Hi, im trying to extend the x265 to allow for additional intra-prediction modes for improving performance. This means that I need to increase the number of bits used for storing the angular intra-prediction direction. I made this change in the encoder in entropy.cpp in codeIntraDirLumaAng where the code now adds the prediction information using 6 bits instead of five.

Now I have to make the corresponding change in the decoder so that it reads 6 bits for the intra-prediction mode instead of 5. Any guidance on where to make this change will be of great help in enhancing the capabilities of the x265.

Thanks -Haris

[Johnny Depp]

not sure but maybe related to this? … extends the intra block copy technique by making the block matching process invariant to rotation … (for HEVC) http://www.rle.mit.edu/eems/wp-content/uploads/2015/12/zhang_icip_2015.pdf

[Mohammad Haris Baig]

Hi, very interesting paper and I noticed that the results are good too :D Makes me wish the authors had commented on the time complexity of their approach. I hope they release their code as it might make studying HEVC very easy.