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x264enc: Use new libx264 API to affect fast first pass

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Uses new x264 API to apply reduced complexity values to the parameters to
increase encoding speed in the first pass of a multi-pass encode. This does
not impact on final quality.

Addresses part of bug #607798
This commit is contained in:
Robert Swain 2010-07-21 15:59:12 +02:00
parent 76cc4dbc07
commit d6f766d10f
1 changed files with 12 additions and 8 deletions
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20
ext/x264/gstx264enc.c
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@ -852,16 +852,20 @@ gst_x264_enc_init_encoder (GstX264Enc * encoder)
encoder->x264param.rc.b_stat_write = 0; encoder->x264param.rc.b_stat_write = 0;
break; break;
case 1: case 1:
/* Turbo mode parameters. */
encoder->x264param.i_frame_reference = (encoder->ref + 1) >> 1;
encoder->x264param.analyse.i_subpel_refine =
CLAMP (encoder->subme - 1, 1, 3);
encoder->x264param.analyse.inter &= ~X264_ANALYSE_PSUB8x8;
encoder->x264param.analyse.inter &= ~X264_ANALYSE_BSUB16x16;
encoder->x264param.analyse.i_trellis = 0;
encoder->x264param.rc.b_stat_read = 0; encoder->x264param.rc.b_stat_read = 0;
encoder->x264param.rc.b_stat_write = 1; encoder->x264param.rc.b_stat_write = 1;
#ifdef X264_PRESETS
x264_param_apply_fastfirstpass (&encoder->x264param);
#else
encoder->x264param.i_frame_reference = 1;
encoder->x264param.analyse.b_transform_8x8 = 0;
encoder->x264param.analyse.inter = 0;
encoder->x264param.analyse.i_me_method = X264_ME_DIA;
encoder->x264param.analyse.i_subpel_refine =
MIN (2, encoder->x264param.analyse.i_subpel_refine);
encoder->x264param.analyse.i_trellis = 0;
encoder->x264param.analyse.b_fast_pskip = 1;
#endif /* X264_PRESETS */
break; break;
case 2: case 2:
encoder->x264param.rc.b_stat_read = 1; encoder->x264param.rc.b_stat_read = 1;