Hi, I am trying to parallel the h264 decoder in FFmpeg using wavefront processing. I know that the function ff_h264_decode_mb_cabac performs entropy decoding, and ff_h264_hl_decode_mb performs inverse quanization, inverse DCT and motion compensation per MB. And loop_filter applies the deblocking filter per row. I adjusted the values of mb_x and mb_y from the original scanline order to wavefront order. E.g. (0,0), (1,0),(2,0),(0,1),(3,0),(1,1)… but it showed a lot of warning messages as follows.
[h264 @ 0x204e310] left block unavailable for requested intra mode at 117 31 [h264 @ 0x204e310] left block unavailable for requested intra4x4 mode -1 at 87 46 [h264 @ 0x204e310] top block unavailable for requested intra mode at 73 53 [h264 @ 0x204e310] top block unavailable for requested intra mode at 92 44 [...] Do any dependencies for the scanline order still exist in these functions after I change the processing order? - Winand _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-devel
