Using streamer from xawtv-3.102 segfaults with jpeg-output and libjpeg
v8. Attached patch will resolve the problem.
Regards, Markus
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[...]
explicitly set do_fancy_downsampling to FALSE
Apparently, when settings dinfo.raw_data_in,
previous version jpeg automatically set dinfo.do_fancy_downsampling to
FALSE. Newer versions (since 7) of media-libs/jpeg do not do that anymore and
the program must do it explicitly (although I have not found any documentation
to that effect).
Compile tested only, but a similar fix in mjpegtools (but output rather than
input) works.
--- xawtv-3.102.org/libng/plugins/conv-mjpeg.c 2011-09-05 19:26:02.000000000 +0200
+++ xawtv-3.102/libng/plugins/conv-mjpeg.c 2011-10-07 15:57:52.413003003 +0200
@@ -229,6 +229,7 @@
jpeg_set_quality(&h->mjpg_cinfo, ng_jpeg_quality, TRUE);
h->mjpg_cinfo.raw_data_in = TRUE;
+ h->mjpg_cinfo.do_fancy_downsampling = FALSE; // fix segfaulst with libjpeg v7++
jpeg_set_colorspace(&h->mjpg_cinfo,JCS_YCbCr);
h->mjpg_ptrs[0] = malloc(h->fmt.height*sizeof(char*));
