---
doc/encoders.texi | 44 +++++++++++++++++++++++++++++++----------
libavcodec/libsvt_av1.c | 6 +++---
2 files changed, 37 insertions(+), 13 deletions(-)
diff --git a/doc/encoders.texi b/doc/encoders.texi
index af7d2ba983..d05ecca8db 100644
--- a/doc/encoders.texi
+++ b/doc/encoders.texi
@@ -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
+@item la-depth
Set number of frames to look ahead (0-120).
@item preset
-Set encoding preset.
-
-@item tier
+Set the quality-speed tradeoff, in the range 0 to 8. Higher values are
+faster but lower quality. Defaults to 8 (highest speed).
@item tile-rows
-Selects how many rows of tiles to encode with (0-6).
+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).
+Set log2 of the number of columns of tiles to use (0-4).
@end table
diff --git a/libavcodec/libsvt_av1.c b/libavcodec/libsvt_av1.c
index 3229551d2b..e3d932d134 100644
--- a/libavcodec/libsvt_av1.c
+++ b/libavcodec/libsvt_av1.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),
--
2.27.0
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