Disable fancy upsampling (needed for libjpeg >= 7)

Libv4lconvert expects to receive downsampled data. With
jpeglib 7 the default changed to TRUE. So we have to
explicitely request downsampled data after reading the
JPEG header.
Thanks to Guido Vollbeding for pointing this out.

Signed-off-by: Gregor Jasny <gjasny@googlemail.com>

diff --git a/lib/libv4lconvert/jpeg.c b/lib/libv4lconvert/jpeg.c
index 0d581f8..c7e20cc 100644 (file)
--- a/lib/libv4lconvert/jpeg.c
+++ b/lib/libv4lconvert/jpeg.c
@@ -386,6 +386,7 @@ int v4lconvert_decode_jpeg_libjpeg(struct v4lconvert_data *data,
                }
 
                data->cinfo.raw_data_out = TRUE;
+               data->cinfo.do_fancy_upsampling = FALSE;
                jpeg_start_decompress(&data->cinfo);
                /* Make libjpeg errors report that we've got some data */
                data->jerr_errno = EPIPE;