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2pass encoding support for x264(r46).
patch by Loren Merritt and Jeff Clagg git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@13326 b3059339-0415-0410-9bf9-f77b7e298cf2
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@ -6489,9 +6489,8 @@ I frame frequency (default: 60)
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.TP
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.B frameref=<value>
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Number of previous frames used as predictors in a P-frame (default: 1).
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.br
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.I NOTE:
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As of x264 r38 this feature is not implemented yet.
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This may cause tiny changes in bitrate and PSNR.
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Some decoders are unable to deal with large frameref values.
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.
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.TP
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.B idrframe=<value>
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@ -6527,7 +6526,7 @@ Beta parameter of deblocking filter (default: 0).
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Affects the maximum allowed gradient within two adjacent blocks.
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.
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.TP
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.B cabac
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.B cabac\ \ \
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Use CABAC (Context-Adaptive Binary Arithmetic Coding).
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.
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.TP
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@ -6558,18 +6557,14 @@ As an example, the bitrate difference between QP=20 and QP=40
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is about a factor of 10.
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Useful quantizers in H.264 tend to be very large compared to MPEG[124].
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.br
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.I NOTE:
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This option takes effect even if you specify a CBR encode.
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In such a case, the first encoded frame will use the quantization factor you
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specified, but in later frames, the ratecontrol decides what quants to use.
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.
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.TP
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.B qp_min=<2-51> (CBR only)
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Minimum quantizer, 20-40 seems to be a useful range (default: 2).
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Minimum quantizer, 15-35 seems to be a useful range (default: 10).
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.
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.TP
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.B qp_max=<2-51> (CBR only)
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Maximum quantizer
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maximum quantizer (default: 51)
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.
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.TP
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.B qp_step=<value>
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@ -6587,7 +6582,7 @@ Set the initial ratecontrol buffer (default: 1/4 of rc_buffer_size)
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.
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.TP
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.B rc_sens=<0-100>
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ratecontrol sensitivity (default: 100)
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ratecontrol sensitivity (default: 4)
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.
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.TP
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.B ip_factor=<value>
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@ -6610,7 +6605,7 @@ bitrate more constant, while a higher value makes the quantization parameter
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more constant.
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.
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.TP
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.B qblur=<0-1>
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.B qblur=<0-99>
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Temporal blur of the quantization parameter (default: 0.5).
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Lower values allow the quantizer value to jump around more,
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higher values force it to vary more smoothly.
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@ -6626,17 +6621,18 @@ Adjust the amount of logging info printed to the screen.
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.RSs
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-1: none
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.br
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0: errors (for debugging x264)
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0: Print errors only.
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.br
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1: warnings
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.br
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2: PSNR and other analysis stats when the encode finishes (default)
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2: PSNR, encoding times, and other analysis stats when the encode finishes
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(default)
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.br
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3: PSNR, QP, frametype, size, and other stats for every frame
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.REss
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.
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.TP
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.B psnr
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.B psnr\ \ \
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Print signal-to-noise ratio statistics.
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.
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.
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@ -133,43 +133,55 @@ static int config(struct vf_instance_s* vf, int width, int height, int d_width,
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mod->param.i_deblocking_filter_beta = deblockbeta;
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mod->param.b_cabac = cabac;
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mod->param.i_cabac_init_idc = cabacidc;
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mod->param.i_qp_constant = qp_constant;
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mod->param.rc.i_qp_constant = qp_constant;
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if(qp_min > qp_constant)
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qp_min = qp_constant;
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if(qp_max < qp_constant)
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qp_max = qp_constant;
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mod->param.i_qp_min = qp_min;
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mod->param.i_qp_max = qp_max;
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mod->param.i_qp_step = qp_step;
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#if 0
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mod->param.i_pass = pass;
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mod->param.s_rc_eq = rc_eq;
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mod->param.f_qcompress = qcomp;
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mod->param.f_qblur = qblur;
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mod->param.s_2pass_file_out = passtmpfile;
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mod->param.s_2pass_file_in = passtmpfile;
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mod->param.rc.i_qp_min = qp_min;
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mod->param.rc.i_qp_max = qp_max;
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mod->param.rc.i_qp_step = qp_step;
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mod->param.rc.psz_rc_eq = rc_eq;
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mod->param.rc.f_qcompress = qcomp;
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mod->param.rc.f_qblur = qblur;
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mod->param.rc.psz_stat_out = passtmpfile;
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mod->param.rc.psz_stat_in = passtmpfile;
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if((pass & 2) && bitrate <= 0)
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{
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mp_msg(MSGT_MENCODER, MSGL_ERR,
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"2 pass encoding enabled, but no bitrate specified.\n");
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return 0;
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}
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#endif
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switch(pass) {
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case 0:
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mod->param.rc.b_stat_write = 0;
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mod->param.rc.b_stat_read = 0;
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break;
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case 1:
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mod->param.rc.b_stat_write = 1;
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mod->param.rc.b_stat_read = 0;
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break;
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case 2:
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mod->param.rc.b_stat_write = 0;
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mod->param.rc.b_stat_read = 1;
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break;
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}
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if(bitrate > 0) {
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if(rc_buffer_size <= 0)
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rc_buffer_size = bitrate;
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if(rc_init_buffer < 0)
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rc_init_buffer = rc_buffer_size/4;
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mod->param.b_cbr = 1;
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mod->param.i_bitrate = bitrate;
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mod->param.i_rc_buffer_size = rc_buffer_size;
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mod->param.i_rc_init_buffer = rc_init_buffer;
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mod->param.i_rc_sens = rc_sens;
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mod->param.rc.b_cbr = 1;
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mod->param.rc.i_bitrate = bitrate;
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mod->param.rc.i_rc_buffer_size = rc_buffer_size;
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mod->param.rc.i_rc_init_buffer = rc_init_buffer;
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mod->param.rc.i_rc_sens = rc_sens;
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}
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if(fullinter)
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mod->param.analyse.inter = X264_ANALYSE_I4x4 | X264_ANALYSE_PSUB16x16 | X264_ANALYSE_PSUB8x8;
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mod->param.f_ip_factor = ip_factor;
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mod->param.f_pb_factor = pb_factor;
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mod->param.rc.f_ip_factor = ip_factor;
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mod->param.rc.f_pb_factor = pb_factor;
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mod->param.i_width = width;
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mod->param.i_height = height;
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