Files
ffmpeg/libavcodec
Zhao Zhili 40302cc35b avcodec/hevc: Add wasm simd128 idct
Benchmark with wasmtime:
wasmtime checkasm --test=hevc_idct --benchmark

hevc_idct_4x4_8_c:                                      20.8 ( 1.00x)
hevc_idct_4x4_8_simd128:                                10.2 ( 2.02x)
hevc_idct_4x4_10_c:                                     21.0 ( 1.00x)
hevc_idct_4x4_10_simd128:                               10.2 ( 2.05x)
hevc_idct_8x8_8_c:                                     198.0 ( 1.00x)
hevc_idct_8x8_8_simd128:                                41.5 ( 4.77x)
hevc_idct_8x8_10_c:                                    197.8 ( 1.00x)
hevc_idct_8x8_10_simd128:                               41.8 ( 4.74x)
hevc_idct_16x16_8_c:                                  1385.2 ( 1.00x)
hevc_idct_16x16_8_simd128:                             291.8 ( 4.75x)
hevc_idct_16x16_10_c:                                 1375.0 ( 1.00x)
hevc_idct_16x16_10_simd128:                            281.2 ( 4.89x)
hevc_idct_32x32_8_c:                                 13479.0 ( 1.00x)
hevc_idct_32x32_8_simd128:                            1541.5 ( 8.74x)
hevc_idct_32x32_10_c:                                13448.0 ( 1.00x)
hevc_idct_32x32_10_simd128:                           1541.5 ( 8.72x)

Decoding test:

1. Without the optimization:
$ wasmtime --wasi threads --dir=/ ./ffmpeg -cpuflags 0 -i 265.mp4 -an -t 120 -f null - -benchmark
frame= 2880 fps= 94 q=-0.0 Lsize=N/A time=00:02:00.00 bitrate=N/A speed=3.92x

2. With the optimization:
$ wasmtime --wasi threads --dir=/ ./ffmpeg -i 265.mp4 -an -t 120 -f null - -benchmark
frame= 2880 fps=110 q=-0.0 Lsize=N/A time=00:02:00.00 bitrate=N/A speed=4.58x

Signed-off-by: Zhao Zhili <zhilizhao@tencent.com>
2024-12-04 16:43:07 +08:00
..
2024-10-01 10:28:54 +08:00
2024-12-04 16:43:07 +08:00
2024-09-02 11:56:53 +02:00
2024-11-28 10:03:01 +09:00
2024-12-01 13:26:34 +08:00
2024-11-18 07:54:22 +01:00
2024-11-07 15:11:10 +01:00
2024-11-07 15:11:10 +01:00
2024-11-07 15:11:10 +01:00
2024-09-17 21:12:31 +02:00
2024-11-03 10:53:15 +11:00
2024-09-06 13:59:28 +02:00
2024-09-24 15:37:17 +02:00
2024-11-16 13:24:16 +01:00
2024-12-04 04:23:48 +01:00
2024-12-04 04:23:48 +01:00
2024-09-28 18:35:35 +02:00
2024-09-28 18:35:35 +02:00
2024-11-01 12:13:07 +08:00
2024-09-24 15:37:19 +02:00
2024-12-04 16:43:07 +08:00
2024-11-09 02:46:17 +01:00
2024-11-03 10:53:15 +11:00
2024-12-04 04:23:49 +01:00
2024-11-03 10:53:15 +11:00
2024-11-03 10:53:15 +11:00
2024-11-03 10:53:15 +11:00
2024-10-12 11:21:14 -03:00
2024-10-12 11:21:14 -03:00
2024-10-12 11:21:14 -03:00
2024-10-12 11:21:14 -03:00
2024-10-12 11:21:14 -03:00
2024-10-12 11:21:14 -03:00
2024-11-01 12:13:07 +08:00
2024-11-01 12:13:07 +08:00
2024-09-24 15:37:19 +02:00
2024-11-25 14:34:55 -05:00
2024-10-31 17:49:48 +11:00
2024-10-31 17:49:48 +11:00
2024-10-31 17:49:48 +11:00
2024-10-31 17:49:48 +11:00
2024-12-04 04:23:49 +01:00
2024-09-24 15:37:20 +02:00