We are submitting a set of patches that significantly improve H.264 decoding performance by utilizing RVV intrinsic code. The average speedup(FPS) achieved by these patches is more than 2x, as experimented on 720P videos running on an internal FPGA board.
Patch1: add support for RVV intrinsic code in the configure file Patch2: optimize chroma motion compensation Patch3: optimize luma motion compensation Patch4: optimize dsp functions, such as IDCT, in-loop filtering, and weighed filtering Patch5: optimize intra prediction Arnie Chang (5): configure: Add detection of RISC-V vector intrinsic support lavc/h264chroma: Add vectorized implementation of chroma MC for RISC-V lavc/h264qpel: Add vectorized implementation of luma MC for RISC-V lavc/h264dsp: Add vectorized implementation of DSP functions for RISC-V lavc/h264pred: Add vectorized implementation of intra prediction for RISC-V configure | 2 + libavcodec/h264chroma.c | 2 + libavcodec/h264chroma.h | 1 + libavcodec/h264dsp.c | 2 + libavcodec/h264dsp.h | 3 +- libavcodec/h264pred.c | 2 + libavcodec/h264pred.h | 3 +- libavcodec/h264qpel.c | 2 + libavcodec/h264qpel.h | 1 + libavcodec/riscv/Makefile | 11 + libavcodec/riscv/h264_chroma_init_riscv.c | 45 + libavcodec/riscv/h264_dsp_init_riscv.c | 68 ++ libavcodec/riscv/h264_idct.c | 482 +++++++++ libavcodec/riscv/h264_idct.h | 46 + libavcodec/riscv/h264_inloop.c | 669 ++++++++++++ libavcodec/riscv/h264_inloop.h | 47 + libavcodec/riscv/h264_lowpass.h | 249 +++++ libavcodec/riscv/h264_mc_chroma.c | 821 ++++++++++++++ libavcodec/riscv/h264_mc_chroma.h | 40 + libavcodec/riscv/h264_mc_luma.c | 412 +++++++ libavcodec/riscv/h264_mc_luma.h | 101 ++ libavcodec/riscv/h264_mc_luma_avg16.h | 1183 +++++++++++++++++++++ libavcodec/riscv/h264_mc_luma_avg8.h | 773 ++++++++++++++ libavcodec/riscv/h264_mc_luma_put16.h | 963 +++++++++++++++++ libavcodec/riscv/h264_mc_luma_put8.h | 648 +++++++++++ libavcodec/riscv/h264_pred.c | 884 +++++++++++++++ libavcodec/riscv/h264_pred.h | 53 + libavcodec/riscv/h264_pred_init_riscv.c | 67 ++ libavcodec/riscv/h264_qpel_init_riscv.c | 107 ++ libavcodec/riscv/h264_utility.h | 75 ++ libavcodec/riscv/h264_weighted_sum.c | 273 +++++ libavcodec/riscv/h264_weighted_sum.h | 47 + 32 files changed, 8080 insertions(+), 2 deletions(-) create mode 100644 libavcodec/riscv/h264_chroma_init_riscv.c create mode 100644 libavcodec/riscv/h264_dsp_init_riscv.c create mode 100644 libavcodec/riscv/h264_idct.c create mode 100644 libavcodec/riscv/h264_idct.h create mode 100644 libavcodec/riscv/h264_inloop.c create mode 100644 libavcodec/riscv/h264_inloop.h create mode 100644 libavcodec/riscv/h264_lowpass.h create mode 100644 libavcodec/riscv/h264_mc_chroma.c create mode 100644 libavcodec/riscv/h264_mc_chroma.h create mode 100644 libavcodec/riscv/h264_mc_luma.c create mode 100644 libavcodec/riscv/h264_mc_luma.h create mode 100644 libavcodec/riscv/h264_mc_luma_avg16.h create mode 100644 libavcodec/riscv/h264_mc_luma_avg8.h create mode 100644 libavcodec/riscv/h264_mc_luma_put16.h create mode 100644 libavcodec/riscv/h264_mc_luma_put8.h create mode 100644 libavcodec/riscv/h264_pred.c create mode 100644 libavcodec/riscv/h264_pred.h create mode 100644 libavcodec/riscv/h264_pred_init_riscv.c create mode 100644 libavcodec/riscv/h264_qpel_init_riscv.c create mode 100644 libavcodec/riscv/h264_utility.h create mode 100644 libavcodec/riscv/h264_weighted_sum.c create mode 100644 libavcodec/riscv/h264_weighted_sum.h -- 2.17.1 _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe".