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https://github.com/mpv-player/mpv
synced 2025-03-31 07:51:55 +00:00
better default parameter,added counterpart option, better names for few options, 3-pass support and improved documentation.
patch by Loren Merritt git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@13497 b3059339-0415-0410-9bf9-f77b7e298cf2
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@ -6770,20 +6770,13 @@ Sets the bitrate to be used in kbits/\:second (default: off).
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This is required if you want a CBR (constant bitrate) encode.
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.
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.TP
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.B iframe=<value>
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.B keyint=<value>
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Sets maximum interval between I frames.
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Larger values save bits, thus improve quality, at the cost of seeking
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precision (default: 60).
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precision (default: 250).
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.
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.TP
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.B frameref=<1\-15>
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Number of previous frames used as predictors in a P frame (default: 1).
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This is effective in Anime, but seems to make little difference in
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live-action source material.
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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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.B idrint=<value>
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Each <value> I-Frames are IDR-Frames (default: 2).
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In H.264, I-Frames do not necessarily bound a closed GOP because it is
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allowable for a P-frame to be predicted from more frames than just the one
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@ -6793,11 +6786,18 @@ IDR-Frames restrict subsequent P-frames from referring to any frame
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prior to the IDR-Frame.
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.
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.TP
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.B bframe=<value>
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number of B-Frames between I- and P-Frames (default: 0)
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.B frameref=<1\-15>
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Number of previous frames used as predictors in a P frame (default: 1).
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This is effective in Anime, but seems to make little difference in
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live-action source material.
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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 deblock=<0|1>
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.B bframes=<0\-16>
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number of consecutive B-Frames between I- and P-Frames (default: 0)
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.
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.TP
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.B deblock | nodeblock
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Use deblocking filter (default: on).
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As it takes very little time compared to its quality gain, it's not
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recommend to disable it.
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@ -6824,10 +6824,10 @@ 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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Use CABAC (Context-Adaptive Binary Arithmetic Coding).
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Slows down encoding but should save 10-15% of the bits.
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Unless you are looking for speed, you should activate it.
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.B cabac | nocabac
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Use CABAC (Context-Adaptive Binary Arithmetic Coding) (default: on).
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Slightly slows down encoding and decoding, but should save 10-15% bitrate.
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Unless you are looking for speed, you should not disable it.
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.
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.TP
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.B cabacidc=<value>
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@ -6847,7 +6847,7 @@ directly affect distortion.
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.REss
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.
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.TP
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.B qp_constant=<2\-51>
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.B qp_constant=<1\-51>
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This selects the quantizer to use.
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20\-40 is a useful range (default: 26).
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Lower values result in better fidelity, but higher bitrates.
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@ -6858,11 +6858,11 @@ 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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.
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.TP
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.B qp_min=<2\-51> (CBR only)
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.B qp_min=<1\-51> (CBR or 2 pass)
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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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.B qp_max=<1\-51> (CBR or 2 pass)
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maximum quantizer (default: 51)
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.
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.TP
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@ -6912,7 +6912,7 @@ 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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.
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.TP
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.B fullinter
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.B fullinter | nofullinter
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Use all available interframe macroblock types (i16x16, i4x4, p16x16-4x4)
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The idea is to find the type and size that best describe a certain area
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of the picture, i.e.\& very effective for Anime, which usually contains
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@ -6921,22 +6921,6 @@ Depending on the source material, it can improve or degrade quality, use
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it with care.
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.
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.TP
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.B log=<-1\-3>
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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: 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, 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 subq=<0\-5>
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Adjust subpel refinement quality.
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This parameter controls quality versus speed tradeoffs involved in the motion
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@ -6957,8 +6941,24 @@ It can improve quality significantly.
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.REss
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.
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.TP
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.B psnr\ \ \
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Print signal-to-noise ratio statistics.
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.B log=<-1\-3>
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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: 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, 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 | nopsnr
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Print signal-to-noise ratio statistics (default: off).
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.
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.
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.\" --------------------------------------------------------------------------
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@ -61,13 +61,13 @@ extern char* passtmpfile;
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static int bitrate = -1;
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static int qp_constant = 26;
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static int frame_ref = 1;
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static int iframe = 60;
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static int iframe = 250;
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static int idrframe = 2;
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static int bframe = 0;
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static int deblock = 1;
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static int deblockalpha = 0;
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static int deblockbeta = 0;
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static int cabac = 0;
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static int cabac = 1;
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static int cabacidc = -1;
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static int fullinter = 0;
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static float ip_factor = 2.0;
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@ -89,16 +89,19 @@ static int log_level = 2;
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m_option_t x264encopts_conf[] = {
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{"bitrate", &bitrate, CONF_TYPE_INT, CONF_RANGE, 0, 24000000, NULL},
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{"qp_constant", &qp_constant, CONF_TYPE_INT, CONF_RANGE, 1, 51, NULL},
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{"frameref", &frame_ref, CONF_TYPE_INT, CONF_RANGE, 1, 100, NULL},
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{"iframe", &iframe, CONF_TYPE_INT, CONF_RANGE, 1, 24000000, NULL},
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{"idrframe", &idrframe, CONF_TYPE_INT, CONF_RANGE, 1, 24000000, NULL},
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{"bframe", &bframe, CONF_TYPE_INT, CONF_RANGE, 0, 10, NULL},
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{"deblock", &deblock, CONF_TYPE_INT, CONF_RANGE, 0, 1, NULL},
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{"frameref", &frame_ref, CONF_TYPE_INT, CONF_RANGE, 1, 15, NULL},
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{"keyint", &iframe, CONF_TYPE_INT, CONF_RANGE, 1, 24000000, NULL},
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{"idrint", &idrframe, CONF_TYPE_INT, CONF_RANGE, 1, 24000000, NULL},
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{"bframes", &bframe, CONF_TYPE_INT, CONF_RANGE, 0, 16, NULL},
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{"deblock", &deblock, CONF_TYPE_FLAG, 0, 0, 1, NULL},
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{"nodeblock", &deblock, CONF_TYPE_FLAG, 0, 1, 0, NULL},
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{"deblockalpha", &deblockalpha, CONF_TYPE_INT, CONF_RANGE, -6, 6, NULL},
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{"deblockbeta", &deblockbeta, CONF_TYPE_INT, CONF_RANGE, -6, 6, NULL},
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{"cabac", &cabac, CONF_TYPE_FLAG, 0, 0, 1, NULL},
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{"nocabac", &cabac, CONF_TYPE_FLAG, 0, 1, 0, NULL},
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{"cabacidc", &cabacidc, CONF_TYPE_INT, CONF_RANGE, -1, 2, NULL},
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{"fullinter", &fullinter, CONF_TYPE_FLAG, 0, 0, 1, NULL},
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{"nofullinter", &fullinter, CONF_TYPE_FLAG, 0, 1, 0, NULL},
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{"ip_factor", &ip_factor, CONF_TYPE_FLOAT, CONF_RANGE, -10.0, 10.0, NULL},
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{"pb_factor", &pb_factor, CONF_TYPE_FLOAT, CONF_RANGE, -10.0, 10.0, NULL},
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{"rc_buffer_size", &rc_buffer_size, CONF_TYPE_INT, CONF_RANGE, 0, 24000000, NULL},
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@ -113,6 +116,7 @@ m_option_t x264encopts_conf[] = {
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{"qblur", &qblur, CONF_TYPE_FLOAT, CONF_RANGE, 0, 99, NULL},
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{"subq", &subq, CONF_TYPE_INT, CONF_RANGE, 0, 5, NULL},
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{"psnr", &psnr, CONF_TYPE_FLAG, 0, 0, 1, NULL},
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{"nopsnr", &psnr, CONF_TYPE_FLAG, 0, 1, 0, NULL},
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{"log", &log_level, CONF_TYPE_INT, CONF_RANGE, -1, 3, NULL},
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{NULL, NULL, 0, 0, 0, 0, NULL}
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};
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@ -168,6 +172,10 @@ static int config(struct vf_instance_s* vf, int width, int height, int d_width,
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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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case 3:
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mod->param.rc.b_stat_write = 1;
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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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