x264プロファイル
SPU化するにあたり、どこがネックか調べるためプロファイルを取ってみる。なぜか32ビットビルド版では変な出力が出るので64ビットビルドする。staitc関数部分はちゃんと出ないようなので、適当にstatic宣言をコメントアウトする。
で、gprofの結果。
Call graph (explanation follows)
granularity: each sample hit covers 2 byte(s) for 0.00% of 223.10 seconds
index % time self children called name
<spontaneous>
[1] 99.4 0.00 221.74 .main [1]
0.00 221.74 1793/1793 .__gmon_start__ [2]
0.00 0.00 1/8 .x264_param_default [116]
0.00 0.00 1/1 .x264_encoder_close [119]
0.00 0.00 1/1 .x264_encoder_open [120]
0.00 0.00 1792/1792 .read_frame_y4m [132]
0.00 0.00 2/2 .x264_mdate [144]
0.00 0.00 1/1 .open_file_bsf [149]
0.00 0.00 1/1 .open_file_y4m [150]
0.00 0.00 1/1 .get_frame_total_y4m [148]
0.00 0.00 1/1 .set_param_bsf [152]
0.00 0.00 1/1 .x264_picture_alloc [161]
0.00 0.00 1/1 .x264_picture_clean [162]
0.00 0.00 1/1 .close_file_y4m [147]
0.00 0.00 1/1 .close_file_bsf [146]
-----------------------------------------------
0.00 221.74 1793/1793 .main [1]
[2] 99.4 0.00 221.74 1793 .__gmon_start__ [2]
0.00 221.69 1793/1793 .x264_encoder_encode [3]
0.05 0.00 1809/1809 .x264_nal_encode [92]
0.00 0.00 1809/1809 .write_nalu_bsf [127]
0.00 0.00 1792/1792 .set_eop_bsf [133]
-----------------------------------------------
0.00 221.69 1793/1793 .__gmon_start__ [2]
[3] 99.4 0.00 221.69 1793 .x264_encoder_encode [3]
0.32 205.62 1793/1793 .x264_slice_write [4]
0.02 14.21 1793/1793 .x264_encoder_frame_end [16]
0.00 1.49 1793/55583 .x264_fdec_filter_row [8]
0.00 0.02 1792/1792 .x264_frame_copy_picture [109]
0.01 0.00 3584/3585 .x264_frame_pop_unused [111]
0.00 0.00 1793/2422343 .x264_ratecontrol_qp [98]
0.00 0.00 1/1800 .x264_log [118]
0.00 0.00 5376/5376 .x264_frame_push [124]
0.00 0.00 5368/5368 .x264_frame_shift [125]
0.00 0.00 1793/1793 .x264_ratecontrol_start [130]
0.00 0.00 1793/1793 .x264_macroblock_slice_init [129]
0.00 0.00 1793/10755 .x264_cpu_restore [123]
0.00 0.00 1792/1792 .x264_slicetype_decide [136]
0.00 0.00 1791/3583 .x264_frame_push_unused [126]
0.00 0.00 8/8 .x264_sps_write [140]
0.00 0.00 8/8 .x264_pps_write [139]
0.00 0.00 7/7 .x264_frame_pop [141]
0.00 0.00 1/1 .x264_sei_version_write [174]
-----------------------------------------------
0.32 205.62 1793/1793 .x264_encoder_encode [3]
[4] 92.3 0.32 205.62 1793 .x264_slice_write [4]
0.68 129.50 2420550/2420550 .x264_macroblock_analyse [5]
0.04 44.67 53790/55583 .x264_fdec_filter_row [8]
2.47 12.69 2420550/2420550 .x264_macroblock_encode [15]
3.72 1.65 2420550/2420550 .x264_macroblock_cache_load [28]
0.50 4.86 815913/815913 .x264_macroblock_write_cabac [29]
1.80 1.59 2420550/2420550 .x264_macroblock_cache_save [36]
0.47 0.84 2408400/10299344 .x264_cabac_mb_skip [27]
0.08 0.00 2420550/2533996 .x264_cabac_encode_terminal [85]
0.03 0.00 1793/1793 .x264_cabac_context_init [99]
0.03 0.00 1793/1793 .x264_cabac_encode_flush [100]
0.00 0.00 1793/1793 .x264_slice_header_write [131]
0.00 0.00 1793/1793 .x264_cabac_encode_init [128]
-----------------------------------------------
0.68 129.50 2420550/2420550 .x264_slice_write [4]
[5] 58.4 0.68 129.50 2420550 .x264_macroblock_analyse [5]
0.61 40.19 2408400/2408400 .x264_mb_analyse_inter_p16x16 [9]
0.32 38.83 828509/828509 .x264_mb_analyse_inter_p8x8 [10]
2.53 16.83 840659/840659 .x264_mb_analyse_intra [14]
0.72 10.30 1273855/8423971 .refine_subpel [7]
0.10 8.36 356920/356920 .x264_mb_analyse_inter_p16x8 [23]
0.10 8.36 356920/356920 .x264_mb_analyse_inter_p8x16 [24]
0.17 1.18 828509/1056344 .x264_mb_analyse_intra_chroma [46]
0.49 0.00 2420550/2420550 .x264_mb_analyse_init [67]
0.16 0.13 840659/2420550 .x264_analyse_update_cache [59]
0.06 0.00 1273855/1273855 .x264_me_refine_qpel [90]
0.04 0.00 4816800/4816800 .prefetch_ref_null [96]
0.03 0.00 2420550/2422343 .x264_ratecontrol_qp [98]
0.00 0.00 1/74 .x264_malloc [138]
-----------------------------------------------
0.42 7.87 713840/7150116 .x264_mb_analyse_inter_p8x16 [24]
0.42 7.87 713840/7150116 .x264_mb_analyse_inter_p16x8 [23]
1.43 26.55 2408400/7150116 .x264_mb_analyse_inter_p16x16 [9]
1.96 36.53 3314036/7150116 .x264_mb_analyse_inter_p8x8 [10]
[6] 37.2 4.24 78.81 7150116 .x264_me_search_ref [6]
4.06 57.79 7150116/8423971 .refine_subpel [7]
4.56 0.00 20729236/89686850 .get_ref_altivec [13]
2.43 0.00 12254405/12254405 .pixel_sad_16x16_altivec [40]
2.09 0.00 4816800/7225200 .pixel_sad_x4_16x16_altivec [37]
1.93 0.00 5211876/5211876 .pixel_sad_x3_16x16_altivec [43]
1.30 0.00 14967199/14967199 .pixel_sad_8x8_altivec [51]
1.23 0.00 7421855/7421855 .pixel_sad_x3_8x8_altivec [52]
1.18 0.00 6628072/9942108 .pixel_sad_x4_8x8_altivec [45]
0.67 0.00 3929056/3929056 .pixel_sad_8x16_altivec [61]
0.45 0.00 3878808/3878808 .pixel_sad_16x8_altivec [69]
0.32 0.00 1427680/2141520 .pixel_sad_x4_8x16_altivec [68]
0.29 0.00 1605798/1605798 .pixel_sad_x3_8x16_altivec [74]
0.26 0.00 1605758/1605758 .pixel_sad_x3_16x8_altivec [75]
0.25 0.00 1427680/2141520 .pixel_sad_x4_16x8_altivec [71]
-----------------------------------------------
0.72 10.30 1273855/8423971 .x264_macroblock_analyse [5]
4.06 57.79 7150116/8423971 .x264_me_search_ref [6]
[7] 32.7 4.79 68.08 8423971 .refine_subpel [7]
23.59 0.00 87259249/95397012 .mc_chroma_altivec [12]
15.18 0.00 68957614/89686850 .get_ref_altivec [13]
9.80 0.00 52182329/58895403 .pixel_satd_8x8_altivec [19]
7.58 0.00 16152488/19509025 .pixel_satd_16x16_altivec [22]
3.24 0.00 37295461/110035475 .pixel_satd_4x4_altivec [21]
2.38 0.00 5687964/5687964 .pixel_satd_8x16_altivec [41]
1.98 0.00 9845655/9845655 .pixel_satd_4x8_altivec [42]
1.56 0.00 5804230/5804230 .pixel_satd_16x8_altivec [49]
1.04 0.00 2408400/7225200 .pixel_sad_x4_16x16_altivec [37]
0.86 0.00 10066684/10066684 .pixel_satd_8x4_altivec [57]
0.59 0.00 3314036/9942108 .pixel_sad_x4_8x8_altivec [45]
0.16 0.00 713840/2141520 .pixel_sad_x4_8x16_altivec [68]
0.13 0.00 713840/2141520 .pixel_sad_x4_16x8_altivec [71]
-----------------------------------------------
0.00 1.49 1793/55583 .x264_encoder_encode [3]
0.04 44.67 53790/55583 .x264_slice_write [4]
[8] 20.7 0.04 46.16 55583 .x264_fdec_filter_row [8]
38.73 0.00 53790/53790 .x264_frame_filter [11]
2.95 4.35 53790/53790 .x264_frame_deblock_row [25]
0.02 0.05 53790/53790 .x264_frame_expand_border [87]
0.01 0.03 53790/53790 .x264_frame_expand_border_filtered [95]
0.02 0.00 53790/322740 .plane_expand_border [83]
-----------------------------------------------
0.61 40.19 2408400/2408400 .x264_macroblock_analyse [5]
[9] 18.3 0.61 40.19 2408400 .x264_mb_analyse_inter_p16x16 [9]
1.43 26.55 2408400/7150116 .x264_me_search_ref [6]
3.08 7.92 1744757/1744757 .x264_macroblock_probe_skip [20]
0.30 0.24 1579891/2420550 .x264_analyse_update_cache [59]
0.50 0.00 2408400/2408400 .x264_mb_predict_mv_ref16x16 [66]
0.18 0.00 2408400/3152617 .x264_mb_predict_mv_16x16 [78]
-----------------------------------------------
0.32 38.83 828509/828509 .x264_macroblock_analyse [5]
[10] 17.5 0.32 38.83 828509 .x264_mb_analyse_inter_p8x8 [10]
1.96 36.53 3314036/7150116 .x264_me_search_ref [6]
0.34 0.00 3314036/5610143 .x264_mb_predict_mv [63]
-----------------------------------------------
38.73 0.00 53790/53790 .x264_fdec_filter_row [8]
[11] 17.4 38.73 0.00 53790 .x264_frame_filter [11]
-----------------------------------------------x264_slice_write関数がメインぽい。マルチCPUだとこれをマルチスレッドで実行している様子。ここから下をSPUに実行させればよいと思うがたぶんLSに入らないやろうなぁ。これを参考にどのあたりが収まりそうか見ていきましょう。
