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avcodec/libwebpenc: add quality option

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previously quality could only be set through qscale/global_quality but the scale
was inverted. Using a separate option avoids the confusion from qscale working
backward.

Reviewed-by: Benoit Fouet <benoit.fouet@free.fr>
Reviewed-by: Clément Bœsch <u@pkh.me>
Reviewed-by: Nicolas George <george@nsup.org>
Reviewed-by: James Almer <jamrial@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2014-11-01 20:28:31 +01:00
parent bd0f866731
commit 716674b151
2 changed files with 5 additions and 5 deletions
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4
libavcodec/libwebpenc.c
View File

@ -65,8 +65,7 @@ static av_cold int libwebp_encode_init(AVCodecContext *avctx)
LibWebPContext *s = avctx->priv_data;
int ret;
if (avctx->global_quality < 0)
avctx->global_quality = 75 * FF_QP2LAMBDA;
if (avctx->global_quality >= 0)
s->quality = av_clipf(avctx->global_quality / (float)FF_QP2LAMBDA,
0.0f, 100.0f);
@ -327,6 +326,7 @@ static const AVOption options[] = {
{ "text", "text-like", 0, AV_OPT_TYPE_CONST, { .i64 = WEBP_PRESET_TEXT }, 0, 0, VE, "preset" },
{ "cr_threshold","Conditional replenishment threshold", OFFSET(cr_threshold), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, INT_MAX, VE },
{ "cr_size" ,"Conditional replenishment block size", OFFSET(cr_size) , AV_OPT_TYPE_INT, { .i64 = 16 }, 0, 256, VE },
{ "quality" ,"Quality", OFFSET(quality), AV_OPT_TYPE_FLOAT, { .dbl = 75 }, 0, 100, VE },
{ NULL },
};

2
libavcodec/version.h
View File

@ -30,7 +30,7 @@
#define LIBAVCODEC_VERSION_MAJOR 56
#define LIBAVCODEC_VERSION_MINOR 10
#define LIBAVCODEC_VERSION_MICRO 101
#define LIBAVCODEC_VERSION_MICRO 102
#define LIBAVCODEC_VERSION_INT AV_VERSION_INT(LIBAVCODEC_VERSION_MAJOR, \
LIBAVCODEC_VERSION_MINOR, \