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avcodec/libjxldec: fix errors when decoding grayscale after rgb 

Fixes an error that's caused by decoding a grayscale JXL image after an
RGB image is decoded, with the same decoder instance.

Signed-off-by: Leo Izen <leo.izen@gmail.com>
This commit is contained in:
Leo Izen 2023-08-01 09:14:21 -04:00
parent 358919506d
commit 245910d5c9
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GPG Key ID: 5A71C331FD2FA19A
1 changed files with 2 additions and 2 deletions
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4
libavcodec/libjxldec.c
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@ -298,7 +298,7 @@ static int libjxl_color_encoding_event(AVCodecContext *avctx, AVFrame *frame)
}
avctx->color_range = frame->color_range = AVCOL_RANGE_JPEG;
if (ctx->jxl_pixfmt.num_channels >= 3)
if (ctx->basic_info.num_color_channels > 1)
avctx->colorspace = AVCOL_SPC_RGB;
avctx->color_primaries = AVCOL_PRI_UNSPECIFIED;
avctx->color_trc = AVCOL_TRC_UNSPECIFIED;
@ -334,7 +334,7 @@ static int libjxl_color_encoding_event(AVCodecContext *avctx, AVFrame *frame)
}
/* all colors will be in-gamut so we want accurate colors */
jxl_color.rendering_intent = JXL_RENDERING_INTENT_RELATIVE;
jxl_color.color_space = avctx->colorspace == AVCOL_SPC_RGB ? JXL_COLOR_SPACE_RGB : JXL_COLOR_SPACE_GRAY;
jxl_color.color_space = ctx->basic_info.num_color_channels > 1 ? JXL_COLOR_SPACE_RGB : JXL_COLOR_SPACE_GRAY;
jret = JxlDecoderSetPreferredColorProfile(ctx->decoder, &jxl_color);
if (jret != JXL_DEC_SUCCESS) {
av_log(avctx, AV_LOG_WARNING, "Unable to set fallback color encoding\n");