1 Description: Workaround to build libav for i586 with gcc 4.9.2 by avoiding memset
2 Author: Bernhard Übelacker <bernhardu@vr-web.de>
5 Bug-Debian: https://bugs.debian.org/783082
6 Last-Update: 2015-04-28
8 Upstream-Status: Backport [debian]
10 Signed-off-by: Robert Yang <liezhi.yang@windriver.com>
12 --- gst-libav-1.4.5.orig/gst-libs/ext/libav/libavcodec/h264_cabac.c
13 +++ gst-libav-1.4.5/gst-libs/ext/libav/libavcodec/h264_cabac.c
14 @@ -2020,7 +2020,11 @@ decode_intra_mb:
15 // In deblocking, the quantizer is 0
16 h->cur_pic.qscale_table[mb_xy] = 0;
17 // All coeffs are present
18 - memset(h->non_zero_count[mb_xy], 16, 48);
19 + /*memset(h->non_zero_count[mb_xy], 16, 48);*/
20 + /* avoiding this memset because it leads at least with gcc4.9.2 to error: 'asm' operand has impossible constraints */
21 + for (size_t i = 0; i < 48; i++) {
22 + ( (unsigned char*)(h->non_zero_count[mb_xy]) ) [i] = 16;
24 h->cur_pic.mb_type[mb_xy] = mb_type;
25 sl->last_qscale_diff = 0;