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image_writer: respect jpeg-quality when using ffmpeg for writing

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This commit is contained in:
sfan5 2023-06-29 12:27:30 +02:00
parent eac6a82e01
commit 76589a5b34
1 changed files with 9 additions and 1 deletions
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10
video/image_writer.c
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@ -137,7 +137,11 @@ static bool write_lavc(struct image_writer_ctx *ctx, mp_image_t *image, FILE *fp
mp_imgfmt_to_name(image->imgfmt));
goto error_exit;
}
if (codec->id == AV_CODEC_ID_PNG) {
if (codec->id == AV_CODEC_ID_MJPEG) {
avctx->flags |= AV_CODEC_FLAG_QSCALE;
// jpeg_quality is set below
} else if (codec->id == AV_CODEC_ID_PNG) {
avctx->compression_level = ctx->opts->png_compression;
av_opt_set_int(avctx, "pred", ctx->opts->png_filter,
AV_OPT_SEARCH_CHILDREN);
@ -173,6 +177,10 @@ static bool write_lavc(struct image_writer_ctx *ctx, mp_image_t *image, FILE *fp
pic->width = avctx->width;
pic->height = avctx->height;
pic->color_range = avctx->color_range;
if (codec->id == AV_CODEC_ID_MJPEG) {
int qscale = 1 + (100 - ctx->opts->jpeg_quality) * 30 / 100;
pic->quality = qscale * FF_QP2LAMBDA;
}
if (ctx->opts->tag_csp) {
avctx->color_primaries = pic->color_primaries =
mp_csp_prim_to_avcol_pri(image->params.color.primaries);