libsvtav1 internally changed cqp to be crf while enable-tp-la is on,
which is on by default, and uses the same variables as cqp
Signed-off-by: Christopher Degawa <c...@randomderp.com>
---
doc/encoders.texi | 14 +++++++++++++-
libavcodec/libsvtav1.c | 15 +++++++++++++--
2 files changed, 26 insertions(+), 3 deletions(-)
diff --git a/doc/encoders.texi b/doc/encoders.texi
index c9c8785afb..86b7d27aeb 100644
--- a/doc/encoders.texi
+++ b/doc/encoders.texi
@@ -1759,9 +1759,13 @@ Set the rate control mode to use.
Possible modes:
@table @option
+@item crf
+Constant quality mode: used a fixed value for quality throughout the stream.
+This mode is the default.
+
@item cqp
Constant quantizer: use fixed values of qindex (dependent on the frame type)
-throughout the stream. This mode is the default.
+throughout the stream. This mode is enabled if enable_tpl_la is disabled.
@item vbr
Variable bitrate: use a target bitrate for the whole stream.
@@ -1776,6 +1780,9 @@ Set the maximum quantizer to use when using a bitrate
mode.
@item qmin
Set the minimum quantizer to use when using a bitrate mode.
+@item crf
+Set the factor to use for the constant quality rate control mode (0-63).
+
@item qp
Set the quantizer used in cqp rate control mode (0-63).
@@ -1789,6 +1796,11 @@ Set number of frames to look ahead (0-120).
Set the quality-speed tradeoff, in the range 0 to 8. Higher values are
faster but lower quality. Defaults to 8 (highest speed).
+@item enable_tpl_la
+Enables changing the quantizer on a block to block basis within a frame
+and only works if la_depth is set to greater than zero or is set to -1.
+Is enabled by default and changes the cqp mode to crf (0-1).
+
@item tile_rows
Set log2 of the number of rows of tiles to use (0-6).
diff --git a/libavcodec/libsvtav1.c b/libavcodec/libsvtav1.c
index eb6043bcac..17f69b005d 100644
--- a/libavcodec/libsvtav1.c
+++ b/libavcodec/libsvtav1.c
@@ -69,6 +69,8 @@ typedef struct SvtContext {
int tier;
+ uint8_t enable_tpl_la;
+
int tile_columns;
int tile_rows;
} SvtContext;
@@ -215,6 +217,8 @@ static int config_enc_params(EbSvtAv1EncConfiguration
*param,
if (svt_enc->la_depth >= 0)
param->look_ahead_distance = svt_enc->la_depth;
+ param->enable_tpl_la = svt_enc->enable_tpl_la;
+
param->tile_columns = svt_enc->tile_columns;
param->tile_rows = svt_enc->tile_rows;
@@ -520,16 +524,23 @@ static const AVOption options[] = {
{ "rc", "Bit rate control mode", OFFSET(rc_mode),
AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 3, VE , "rc"},
- { "cqp", "Constant quantizer", 0, AV_OPT_TYPE_CONST, { .i64 = 0 },
INT_MIN, INT_MAX, VE, "rc" },
+ { "crf", "Constant quality mode, alias to cqp if enable_tpl_la is set
to 0", 0, AV_OPT_TYPE_CONST, { .i64 = 0 }, INT_MIN, INT_MAX, VE, "rc" },
+ { "cqp", "Constant quantizer, alias to crf if enable_tpl_la is set to
1", 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", "Quantizer to use with cqp rate control mode", OFFSET(qp),
+ { "crf", "Factor to use with for constant quality mode, alias to qp if
enable_tpl_la is set to 0", OFFSET(qp),
+ AV_OPT_TYPE_INT, { .i64 = 50 }, 0, 63, VE },
+
+ { "qp", "Quantizer to use with cqp rate control mode, alias to crf if
enable_tpl_la is set to 1", OFFSET(qp),
AV_OPT_TYPE_INT, { .i64 = 50 }, 0, 63, VE },
{ "sc_detection", "Scene change detection", OFFSET(scd),
AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, VE },
+ { "enable_tpl_la", "Enable changing qp on a block to block basis within a
frame, only works if la_depth is greater than 0", OFFSET(enable_tpl_la),
+ AV_OPT_TYPE_BOOL, {.i64 = 1}, 0, 1, VE},
+
{ "tile_columns", "Log2 of number of tile columns to use",
OFFSET(tile_columns), AV_OPT_TYPE_INT, {.i64 = 0}, 0, 4, VE},
{ "tile_rows", "Log2 of number of tile rows to use", OFFSET(tile_rows),
AV_OPT_TYPE_INT, {.i64 = 0}, 0, 6, VE},
--
2.25.1
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