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Code Issues Releases Wiki Activity

image_writer: add webp-compression option

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This commit is contained in:
sfan5 2019-08-02 16:04:54 +02:00
parent 0f79444c6d
commit ee0f4444f9
4 changed files with 10 additions and 0 deletions
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4
DOCS/man/options.rst
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@ -3460,6 +3460,10 @@ Screenshot
``--screenshot-webp-quality=<0-100>``
Set the WebP quality level. Higher means better quality. The default is 75.
``--screenshot-webp-compression=<0-6>``
Set the WebP compression level. Higher means better compression, but takes
more CPU time. Note that this also affects the screenshot quality when used
with lossy WebP files. The default is 4.
Software Scaler
---------------

2
DOCS/man/vo.rst
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@ -431,6 +431,8 @@ Available video output drivers are:
Enable writing lossless WebP files (default: no)
``--vo-image-webp-quality=<0-100>``
WebP quality (default: 75)
``--vo-image-webp-compression=<0-6>``
WebP compression factor (default: 4)
``--vo-image-outdir=<dirname>``
Specify the directory to save the image files to (default: ``./``).

3
video/image_writer.c
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@ -50,6 +50,7 @@ const struct image_writer_opts image_writer_opts_defaults = {
.jpeg_source_chroma = 1,
.webp_lossless = 0,
.webp_quality = 75,
.webp_compression = 4,
.tag_csp = 0,
};
@ -71,6 +72,7 @@ const struct m_option image_writer_opts[] = {
OPT_INTRANGE("png-filter", png_filter, 0, 0, 5),
OPT_FLAG("webp-lossless", webp_lossless, 0),
OPT_INTRANGE("webp-quality", webp_quality, 0, 0, 100),
OPT_INTRANGE("webp-compression", webp_compression, 0, 0, 6),
OPT_FLAG("high-bit-depth", high_bit_depth, 0),
OPT_FLAG("tag-colorspace", tag_csp, 0),
{0},
@ -135,6 +137,7 @@ static bool write_lavc(struct image_writer_ctx *ctx, mp_image_t *image, FILE *fp
av_opt_set_int(avctx, "pred", ctx->opts->png_filter,
AV_OPT_SEARCH_CHILDREN);
} else if (codec->id == AV_CODEC_ID_WEBP) {
avctx->compression_level = ctx->opts->webp_compression;
av_opt_set_int(avctx, "lossless", ctx->opts->webp_lossless,
AV_OPT_SEARCH_CHILDREN);
av_opt_set_int(avctx, "quality", ctx->opts->webp_quality,

1
video/image_writer.h
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@ -34,6 +34,7 @@ struct image_writer_opts {
int jpeg_source_chroma;
int webp_lossless;
int webp_quality;
int webp_compression;
int tag_csp;
};