diff options
| author | 2023-06-11 07:07:27 +0530 | |
|---|---|---|
| committer | 2023-06-13 17:25:35 +0000 | |
| commit | 1790bb5d5bd420047ed14ec0bfd2c73478c747d0 (patch) | |
| tree | cb8fb991ce5ec73e847e15348d731759cbf3894f | |
| parent | 69d1bc228a1fb72ff8539766adb0b771b0c1c935 (diff) | |
ultrahdr: do not select less accurate integer method during dct
At high quality setting, less accurate integer method can have
larger psnr drops. Switch to default setting
Bug: 286617381
Test: ./libultrahdr_app -p inp_p010.yuv -y inp_420p.yuv -w 1920 -h 1080 -o 0
Change-Id: Ide126b87262e1c9a20edca7873b6ca27fc52b2cb
| -rw-r--r-- | libs/ultrahdr/jpegdecoderhelper.cpp | 2 | ||||
| -rw-r--r-- | libs/ultrahdr/jpegencoderhelper.cpp | 2 |
2 files changed, 2 insertions, 2 deletions
diff --git a/libs/ultrahdr/jpegdecoderhelper.cpp b/libs/ultrahdr/jpegdecoderhelper.cpp index fac90c503d..6c3a8c10b7 100644 --- a/libs/ultrahdr/jpegdecoderhelper.cpp +++ b/libs/ultrahdr/jpegdecoderhelper.cpp @@ -242,7 +242,7 @@ bool JpegDecoderHelper::decode(const void* image, int length, bool decodeToRGBA) cinfo.raw_data_out = TRUE; } - cinfo.dct_method = JDCT_IFAST; + cinfo.dct_method = JDCT_ISLOW; jpeg_start_decompress(&cinfo); diff --git a/libs/ultrahdr/jpegencoderhelper.cpp b/libs/ultrahdr/jpegencoderhelper.cpp index 10a763035f..867ffbb4e9 100644 --- a/libs/ultrahdr/jpegencoderhelper.cpp +++ b/libs/ultrahdr/jpegencoderhelper.cpp @@ -139,7 +139,7 @@ void JpegEncoderHelper::setJpegCompressStruct(int width, int height, int quality jpeg_set_quality(cinfo, quality, TRUE); jpeg_set_colorspace(cinfo, isSingleChannel ? JCS_GRAYSCALE : JCS_YCbCr); cinfo->raw_data_in = TRUE; - cinfo->dct_method = JDCT_IFAST; + cinfo->dct_method = JDCT_ISLOW; if (!isSingleChannel) { // Configure sampling factors. The sampling factor is JPEG subsampling 420 because the |