diff options
| -rw-r--r-- | doc/encoders.texi | 48 | ||||
| -rw-r--r-- | libavcodec/libsvtav1.c | 6 |
2 files changed, 39 insertions, 15 deletions
diff --git a/doc/encoders.texi b/doc/encoders.texi index af7d2ba983..2f5457fb26 100644 --- a/doc/encoders.texi +++ b/doc/encoders.texi @@ -1687,7 +1687,7 @@ Enable smooth interintra mode. Default is true. @end table -@section libsvt-av1 +@section libsvtav1 SVT-AV1 encoder wrapper. @@ -1697,31 +1697,55 @@ You need to explicitly configure the build with @code{--enable-libsvtav1}. @subsection Options @table @option +@item profile +Set the encoding profile. + +@item level +Set the operating point level. + +@item tier +Set the operating point tier. + +@item rc +Set the rate control mode to use. + +Possible modes: +@table @option +@item cqp +Constant quantizer: use fixed values of qindex (dependent on the frame type) +throughout the stream. This mode is the default. + +@item vbr +Variable bitrate: use a target bitrate for the whole stream. + +@item cvbr +Constrained variable bitrate: use a target bitrate for each GOP. +@end table + @item qmax -Sets the maximum quantizer to use when using bitrate mode. +Set the maximum quantizer to use when using a bitrate mode. @item qmin -Sets the minimum quantizer to use when using bitrate mode. +Set the minimum quantizer to use when using a bitrate mode. @item qp -Uses quantizer mode to encode at the given quantizer (0-63). +Set the quantizer used in cqp rate control mode (0-63). -@item hielevel +@item sc_detection Enable scene change detection. @item la_depth Set number of frames to look ahead (0-120). @item preset -Set encoding preset. +Set the quality-speed tradeoff, in the range 0 to 8. Higher values are +faster but lower quality. Defaults to 8 (highest speed). -@item tier - -@item tile-rows -Selects how many rows of tiles to encode with (0-6). +@item tile_rows +Set log2 of the number of rows of tiles to use (0-6). -@item tile-columns -Selects how many columns of tiles to encode with (0-4). +@item tile_columns +Set log2 of the number of columns of tiles to use (0-4). @end table diff --git a/libavcodec/libsvtav1.c b/libavcodec/libsvtav1.c index 13d3adc0f8..40942c6f6a 100644 --- a/libavcodec/libsvtav1.c +++ b/libavcodec/libsvtav1.c @@ -489,7 +489,7 @@ static const AVOption options[] = { { "preset", "Encoding preset [0, 8]", OFFSET(enc_mode), AV_OPT_TYPE_INT, { .i64 = MAX_ENC_PRESET }, 0, MAX_ENC_PRESET, VE }, - { "tier", "Set tier (general_tier_flag)", OFFSET(tier), + { "tier", "Set operating point tier", OFFSET(tier), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 1, VE, "tier" }, { "main", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 0 }, 0, 0, VE, "tier" }, { "high", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 1 }, 0, 0, VE, "tier" }, @@ -526,11 +526,11 @@ static const AVOption options[] = { { "rc", "Bit rate control mode", OFFSET(rc_mode), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 3, VE , "rc"}, - { "cqp", "Const Quantization Parameter", 0, AV_OPT_TYPE_CONST, { .i64 = 0 }, INT_MIN, INT_MAX, VE, "rc" }, + { "cqp", "Constant quantizer", 0, AV_OPT_TYPE_CONST, { .i64 = 0 }, INT_MIN, INT_MAX, VE, "rc" }, { "vbr", "Variable Bit Rate, use a target bitrate for the entire stream", 0, AV_OPT_TYPE_CONST, { .i64 = 1 }, INT_MIN, INT_MAX, VE, "rc" }, { "cvbr", "Constrained Variable Bit Rate, use a target bitrate for each GOP", 0, AV_OPT_TYPE_CONST,{ .i64 = 2 }, INT_MIN, INT_MAX, VE, "rc" }, - { "qp", "QP value for intra frames", OFFSET(qp), + { "qp", "Quantizer to use with cqp rate control mode", OFFSET(qp), AV_OPT_TYPE_INT, { .i64 = 50 }, 0, 63, VE }, { "sc_detection", "Scene change detection", OFFSET(scd), |