Documentation for those will be generated automatically.tags/n0.11
@@ -330,25 +330,7 @@ numerator and denominator of the aspect ratio. For example "4:3", | |||||
@item -vn (@emph{output}) | @item -vn (@emph{output}) | ||||
Disable video recording. | Disable video recording. | ||||
@item -bt @var{tolerance} | |||||
Set video bitrate tolerance (in bits, default 4000k). | |||||
Has a minimum value of: (target_bitrate/target_framerate). | |||||
In 1-pass mode, bitrate tolerance specifies how far ratecontrol is | |||||
willing to deviate from the target average bitrate value. This is | |||||
not related to min/max bitrate. Lowering tolerance too much has | |||||
an adverse effect on quality. | |||||
@item -maxrate @var{bitrate} | |||||
Set max video bitrate (in bit/s). | |||||
Requires -bufsize to be set. | |||||
@item -minrate @var{bitrate} | |||||
Set min video bitrate (in bit/s). | |||||
Most useful in setting up a CBR encode: | |||||
@example | |||||
avconv -i myfile.avi -b 4000k -minrate 4000k -maxrate 4000k -bufsize 1835k out.m2v | |||||
@end example | |||||
It is of little use elsewise. | |||||
@item -bufsize @var{size} | |||||
Set video buffer verifier buffer size (in bits). | |||||
@item -vcodec @var{codec} (@emph{output}) | @item -vcodec @var{codec} (@emph{output}) | ||||
Set the video codec. This is an alias for @code{-codec:v}. | Set the video codec. This is an alias for @code{-codec:v}. | ||||
@item -same_quant | @item -same_quant | ||||
@@ -392,140 +374,11 @@ Set pixel format. Use @code{-pix_fmts} to show all the supported | |||||
pixel formats. | pixel formats. | ||||
@item -sws_flags @var{flags} (@emph{input/output}) | @item -sws_flags @var{flags} (@emph{input/output}) | ||||
Set SwScaler flags. | Set SwScaler flags. | ||||
@item -g @var{gop_size} | |||||
Set the group of pictures size. | |||||
@item -vdt @var{n} | @item -vdt @var{n} | ||||
Discard threshold. | Discard threshold. | ||||
@item -qmin @var{q} | |||||
minimum video quantizer scale (VBR) | |||||
@item -qmax @var{q} | |||||
maximum video quantizer scale (VBR) | |||||
@item -qdiff @var{q} | |||||
maximum difference between the quantizer scales (VBR) | |||||
@item -qblur @var{blur} | |||||
video quantizer scale blur (VBR) (range 0.0 - 1.0) | |||||
@item -qcomp @var{compression} | |||||
video quantizer scale compression (VBR) (default 0.5). | |||||
Constant of ratecontrol equation. Recommended range for default rc_eq: 0.0-1.0 | |||||
@item -lmin @var{lambda} | |||||
minimum video lagrange factor (VBR) | |||||
@item -lmax @var{lambda} | |||||
max video lagrange factor (VBR) | |||||
@item -mblmin @var{lambda} | |||||
minimum macroblock quantizer scale (VBR) | |||||
@item -mblmax @var{lambda} | |||||
maximum macroblock quantizer scale (VBR) | |||||
These four options (lmin, lmax, mblmin, mblmax) use 'lambda' units, | |||||
but you may use the QP2LAMBDA constant to easily convert from 'q' units: | |||||
@example | |||||
avconv -i src.ext -lmax 21*QP2LAMBDA dst.ext | |||||
@end example | |||||
@item -rc_init_cplx @var{complexity} | |||||
initial complexity for single pass encoding | |||||
@item -b_qfactor @var{factor} | |||||
qp factor between P- and B-frames | |||||
@item -i_qfactor @var{factor} | |||||
qp factor between P- and I-frames | |||||
@item -b_qoffset @var{offset} | |||||
qp offset between P- and B-frames | |||||
@item -i_qoffset @var{offset} | |||||
qp offset between P- and I-frames | |||||
@item -rc_eq @var{equation} | |||||
Set rate control equation (see section "Expression Evaluation") | |||||
(default = @code{tex^qComp}). | |||||
When computing the rate control equation expression, besides the | |||||
standard functions defined in the section "Expression Evaluation", the | |||||
following functions are available: | |||||
@table @var | |||||
@item bits2qp(bits) | |||||
@item qp2bits(qp) | |||||
@end table | |||||
and the following constants are available: | |||||
@table @var | |||||
@item iTex | |||||
@item pTex | |||||
@item tex | |||||
@item mv | |||||
@item fCode | |||||
@item iCount | |||||
@item mcVar | |||||
@item var | |||||
@item isI | |||||
@item isP | |||||
@item isB | |||||
@item avgQP | |||||
@item qComp | |||||
@item avgIITex | |||||
@item avgPITex | |||||
@item avgPPTex | |||||
@item avgBPTex | |||||
@item avgTex | |||||
@end table | |||||
@item -rc_override[:@var{stream_specifier}] @var{override} (@emph{output,per-stream}) | @item -rc_override[:@var{stream_specifier}] @var{override} (@emph{output,per-stream}) | ||||
rate control override for specific intervals | rate control override for specific intervals | ||||
@item -me_method @var{method} | |||||
Set motion estimation method to @var{method}. | |||||
Available methods are (from lowest to best quality): | |||||
@table @samp | |||||
@item zero | |||||
Try just the (0, 0) vector. | |||||
@item phods | |||||
@item log | |||||
@item x1 | |||||
@item hex | |||||
@item umh | |||||
@item epzs | |||||
(default method) | |||||
@item full | |||||
exhaustive search (slow and marginally better than epzs) | |||||
@end table | |||||
@item -er @var{n} | |||||
Set error resilience to @var{n}. | |||||
@table @samp | |||||
@item 1 | |||||
FF_ER_CAREFUL (default) | |||||
@item 2 | |||||
FF_ER_COMPLIANT | |||||
@item 3 | |||||
FF_ER_AGGRESSIVE | |||||
@item 4 | |||||
FF_ER_VERY_AGGRESSIVE | |||||
@end table | |||||
@item -ec @var{bit_mask} | |||||
Set error concealment to @var{bit_mask}. @var{bit_mask} is a bit mask of | |||||
the following values: | |||||
@table @samp | |||||
@item 1 | |||||
FF_EC_GUESS_MVS (default = enabled) | |||||
@item 2 | |||||
FF_EC_DEBLOCK (default = enabled) | |||||
@end table | |||||
@item -bf @var{frames} | |||||
Use 'frames' B-frames (supported for MPEG-1, MPEG-2 and MPEG-4). | |||||
@item -mbd @var{mode} | |||||
macroblock decision | |||||
@table @samp | |||||
@item 0 | |||||
FF_MB_DECISION_SIMPLE: Use mb_cmp (cannot change it yet in avconv). | |||||
@item 1 | |||||
FF_MB_DECISION_BITS: Choose the one which needs the fewest bits. | |||||
@item 2 | |||||
FF_MB_DECISION_RD: rate distortion | |||||
@end table | |||||
@item -bug @var{param} | |||||
Work around encoder bugs that are not auto-detected. | |||||
@item -strict @var{strictness} | |||||
How strictly to follow the standards. | |||||
@item -deinterlace | @item -deinterlace | ||||
Deinterlace pictures. | Deinterlace pictures. | ||||
@@ -586,28 +439,6 @@ of supported sample formats. | |||||
@table @option | @table @option | ||||
@item -atag @var{fourcc/tag} (@emph{output}) | @item -atag @var{fourcc/tag} (@emph{output}) | ||||
Force audio tag/fourcc. This is an alias for @code{-tag:a}. | Force audio tag/fourcc. This is an alias for @code{-tag:a}. | ||||
@item -audio_service_type @var{type} | |||||
Set the type of service that the audio stream contains. | |||||
@table @option | |||||
@item ma | |||||
Main Audio Service (default) | |||||
@item ef | |||||
Effects | |||||
@item vi | |||||
Visually Impaired | |||||
@item hi | |||||
Hearing Impaired | |||||
@item di | |||||
Dialogue | |||||
@item co | |||||
Commentary | |||||
@item em | |||||
Emergency | |||||
@item vo | |||||
Voice Over | |||||
@item ka | |||||
Karaoke | |||||
@end table | |||||
@end table | @end table | ||||
@section Subtitle options: | @section Subtitle options: | ||||
@@ -739,12 +570,8 @@ Exit after avconv has been running for @var{duration} seconds. | |||||
Dump each input packet to stderr. | Dump each input packet to stderr. | ||||
@item -hex (@emph{global}) | @item -hex (@emph{global}) | ||||
When dumping packets, also dump the payload. | When dumping packets, also dump the payload. | ||||
@item -ps @var{size} | |||||
Set RTP payload size in bytes. | |||||
@item -re (@emph{input}) | @item -re (@emph{input}) | ||||
Read input at native frame rate. Mainly used to simulate a grab device. | Read input at native frame rate. Mainly used to simulate a grab device. | ||||
@item -threads @var{count} | |||||
Thread count. | |||||
@item -vsync @var{parameter} | @item -vsync @var{parameter} | ||||
Video sync method. | Video sync method. | ||||
@@ -1034,6 +861,19 @@ avconv -i test1.avi -i test2.avi -map 0.3 -map 0.2 -map 0.1 -map 0.0 -c copy tes | |||||
The resulting output file @file{test12.avi} will contain first four streams from | The resulting output file @file{test12.avi} will contain first four streams from | ||||
the input file in reverse order. | the input file in reverse order. | ||||
@item | |||||
To force CBR video output: | |||||
@example | |||||
avconv -i myfile.avi -b 4000k -minrate 4000k -maxrate 4000k -bufsize 1835k out.m2v | |||||
@end example | |||||
@item | |||||
The four options lmin, lmax, mblmin and mblmax use 'lambda' units, | |||||
but you may use the QP2LAMBDA constant to easily convert from 'q' units: | |||||
@example | |||||
avconv -i src.ext -lmax 21*QP2LAMBDA dst.ext | |||||
@end example | |||||
@end itemize | @end itemize | ||||
@c man end EXAMPLES | @c man end EXAMPLES | ||||
@@ -33,7 +33,10 @@ | |||||
static const AVOption options[]={ | static const AVOption options[]={ | ||||
{"b", "set bitrate (in bits/s)", OFFSET(bit_rate), AV_OPT_TYPE_INT, {.dbl = AV_CODEC_DEFAULT_BITRATE }, INT_MIN, INT_MAX, V|A|E}, | {"b", "set bitrate (in bits/s)", OFFSET(bit_rate), AV_OPT_TYPE_INT, {.dbl = AV_CODEC_DEFAULT_BITRATE }, INT_MIN, INT_MAX, V|A|E}, | ||||
{"bt", "set video bitrate tolerance (in bits/s)", OFFSET(bit_rate_tolerance), AV_OPT_TYPE_INT, {.dbl = AV_CODEC_DEFAULT_BITRATE*20 }, 1, INT_MAX, V|E}, | |||||
{"bt", "Set video bitrate tolerance (in bits/s). In 1-pass mode, bitrate tolerance specifies how far " | |||||
"ratecontrol is willing to deviate from the target average bitrate value. This is not related " | |||||
"to min/max bitrate. Lowering tolerance too much has an adverse effect on quality.", | |||||
OFFSET(bit_rate_tolerance), AV_OPT_TYPE_INT, {.dbl = AV_CODEC_DEFAULT_BITRATE*20 }, 1, INT_MAX, V|E}, | |||||
{"flags", NULL, OFFSET(flags), AV_OPT_TYPE_FLAGS, {.dbl = DEFAULT }, 0, UINT_MAX, V|A|E|D, "flags"}, | {"flags", NULL, OFFSET(flags), AV_OPT_TYPE_FLAGS, {.dbl = DEFAULT }, 0, UINT_MAX, V|A|E|D, "flags"}, | ||||
{"mv4", "use four motion vector by macroblock (mpeg4)", 0, AV_OPT_TYPE_CONST, {.dbl = CODEC_FLAG_4MV }, INT_MIN, INT_MAX, V|E, "flags"}, | {"mv4", "use four motion vector by macroblock (mpeg4)", 0, AV_OPT_TYPE_CONST, {.dbl = CODEC_FLAG_4MV }, INT_MIN, INT_MAX, V|E, "flags"}, | ||||
{"qpel", "use 1/4 pel motion compensation", 0, AV_OPT_TYPE_CONST, {.dbl = CODEC_FLAG_QPEL }, INT_MIN, INT_MAX, V|E, "flags"}, | {"qpel", "use 1/4 pel motion compensation", 0, AV_OPT_TYPE_CONST, {.dbl = CODEC_FLAG_QPEL }, INT_MIN, INT_MAX, V|E, "flags"}, | ||||
@@ -91,7 +94,9 @@ static const AVOption options[]={ | |||||
{"frame_size", NULL, OFFSET(frame_size), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX, A|E}, | {"frame_size", NULL, OFFSET(frame_size), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX, A|E}, | ||||
{"frame_number", NULL, OFFSET(frame_number), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX}, | {"frame_number", NULL, OFFSET(frame_number), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX}, | ||||
{"delay", NULL, OFFSET(delay), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX}, | {"delay", NULL, OFFSET(delay), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX}, | ||||
{"qcomp", "video quantizer scale compression (VBR)", OFFSET(qcompress), AV_OPT_TYPE_FLOAT, {.dbl = 0.5 }, -FLT_MAX, FLT_MAX, V|E}, | |||||
{"qcomp", "video quantizer scale compression (VBR). Constant of ratecontrol equation. " | |||||
"Recommended range for default rc_eq: 0.0-1.0", | |||||
OFFSET(qcompress), AV_OPT_TYPE_FLOAT, {.dbl = 0.5 }, -FLT_MAX, FLT_MAX, V|E}, | |||||
{"qblur", "video quantizer scale blur (VBR)", OFFSET(qblur), AV_OPT_TYPE_FLOAT, {.dbl = 0.5 }, -1, FLT_MAX, V|E}, | {"qblur", "video quantizer scale blur (VBR)", OFFSET(qblur), AV_OPT_TYPE_FLOAT, {.dbl = 0.5 }, -1, FLT_MAX, V|E}, | ||||
{"qmin", "min video quantizer scale (VBR)", OFFSET(qmin), AV_OPT_TYPE_INT, {.dbl = 2 }, -1, 69, V|E}, | {"qmin", "min video quantizer scale (VBR)", OFFSET(qmin), AV_OPT_TYPE_INT, {.dbl = 2 }, -1, 69, V|E}, | ||||
{"qmax", "max video quantizer scale (VBR)", OFFSET(qmax), AV_OPT_TYPE_INT, {.dbl = 31 }, -1, 69, V|E}, | {"qmax", "max video quantizer scale (VBR)", OFFSET(qmax), AV_OPT_TYPE_INT, {.dbl = 31 }, -1, 69, V|E}, | ||||
@@ -153,9 +158,14 @@ static const AVOption options[]={ | |||||
{"rc_qmod_amp", "experimental quantizer modulation", OFFSET(rc_qmod_amp), AV_OPT_TYPE_FLOAT, {.dbl = DEFAULT }, -FLT_MAX, FLT_MAX, V|E}, | {"rc_qmod_amp", "experimental quantizer modulation", OFFSET(rc_qmod_amp), AV_OPT_TYPE_FLOAT, {.dbl = DEFAULT }, -FLT_MAX, FLT_MAX, V|E}, | ||||
{"rc_qmod_freq", "experimental quantizer modulation", OFFSET(rc_qmod_freq), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX, V|E}, | {"rc_qmod_freq", "experimental quantizer modulation", OFFSET(rc_qmod_freq), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX, V|E}, | ||||
{"rc_override_count", NULL, OFFSET(rc_override_count), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX}, | {"rc_override_count", NULL, OFFSET(rc_override_count), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX}, | ||||
{"rc_eq", "set rate control equation", OFFSET(rc_eq), AV_OPT_TYPE_STRING, {.str = NULL}, CHAR_MIN, CHAR_MAX, V|E}, | |||||
{"maxrate", "set max bitrate tolerance (in bits/s)", OFFSET(rc_max_rate), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX, V|A|E}, | |||||
{"minrate", "set min bitrate tolerance (in bits/s)", OFFSET(rc_min_rate), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX, V|A|E}, | |||||
{"rc_eq", "Set rate control equation. When computing the expression, besides the standard functions " | |||||
"defined in the section 'Expression Evaluation', the following functions are available: " | |||||
"bits2qp(bits), qp2bits(qp). Also the following constants are available: iTex pTex tex mv " | |||||
"fCode iCount mcVar var isI isP isB avgQP qComp avgIITex avgPITex avgPPTex avgBPTex avgTex.", | |||||
OFFSET(rc_eq), AV_OPT_TYPE_STRING, {.str = NULL}, CHAR_MIN, CHAR_MAX, V|E}, | |||||
{"maxrate", "Set max bitrate tolerance (in bits/s). Requires bufsize to be set.", OFFSET(rc_max_rate), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX, V|A|E}, | |||||
{"minrate", "Set min bitrate tolerance (in bits/s). Most useful in setting up a CBR encode. It is of little use elsewise.", | |||||
OFFSET(rc_min_rate), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX, V|A|E}, | |||||
{"bufsize", "set ratecontrol buffer size (in bits)", OFFSET(rc_buffer_size), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX, A|V|E}, | {"bufsize", "set ratecontrol buffer size (in bits)", OFFSET(rc_buffer_size), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX, A|V|E}, | ||||
{"rc_buf_aggressivity", "currently useless", OFFSET(rc_buffer_aggressivity), AV_OPT_TYPE_FLOAT, {.dbl = 1.0 }, -FLT_MAX, FLT_MAX, V|E}, | {"rc_buf_aggressivity", "currently useless", OFFSET(rc_buffer_aggressivity), AV_OPT_TYPE_FLOAT, {.dbl = 1.0 }, -FLT_MAX, FLT_MAX, V|E}, | ||||
{"i_qfactor", "qp factor between P and I frames", OFFSET(i_quant_factor), AV_OPT_TYPE_FLOAT, {.dbl = -0.8 }, -FLT_MAX, FLT_MAX, V|E}, | {"i_qfactor", "qp factor between P and I frames", OFFSET(i_quant_factor), AV_OPT_TYPE_FLOAT, {.dbl = -0.8 }, -FLT_MAX, FLT_MAX, V|E}, | ||||