ffmpeg | branch: master | Andreas Rheinhardt <andreas.rheinha...@outlook.com> | Mon May 6 17:25:44 2024 +0200| [6fa967810d8fa5b9101b79acdb1722529f75c4b7] | committer: Andreas Rheinhardt
tests/checkasm/svq1enc: Use proper range for input ssd_int8_vs_int16 is only called from encode_block() in svq1enc.c; it calls it in stages: At stage 0, the int16_t array contains the difference of two uint16_t. At each of the following stages, the int16_t array is filled by subtracting an int8_t from the current stage's int16_t array. The maximum stage is five, so the int16_t are in the range (-255 - 5 * 127)..(255 + 5 * 128). This commit modifies the checkasm test to only use values from this range, fixing (undefined) integer overflow in the test. Signed-off-by: Andreas Rheinhardt <andreas.rheinha...@outlook.com> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=6fa967810d8fa5b9101b79acdb1722529f75c4b7 --- tests/checkasm/svq1enc.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/tests/checkasm/svq1enc.c b/tests/checkasm/svq1enc.c index 1a6f531141..f9abdcbff8 100644 --- a/tests/checkasm/svq1enc.c +++ b/tests/checkasm/svq1enc.c @@ -18,7 +18,6 @@ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. */ -#include "libavutil/mem.h" #include "libavutil/mem_internal.h" #include "libavcodec/svq1encdsp.h" @@ -26,11 +25,13 @@ #include "checkasm.h" #define BUF_SIZE 1024 +#define MIN_VAL (-255 - 5 * 127) +#define MAX_VAL ( 255 + 5 * 128) #define randomize(buf, len) \ do { \ for (int i = 0; i < len; i++) \ - buf[i] = ((rnd() % 65281) - 32641); \ + buf[i] = ((rnd() % (MAX_VAL - MIN_VAL + 1)) + MIN_VAL); \ } while (0) static void test_ssd_int8_vs_int16(SVQ1EncDSPContext *s) { _______________________________________________ ffmpeg-cvslog mailing list ffmpeg-cvslog@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-cvslog To unsubscribe, visit link above, or email ffmpeg-cvslog-requ...@ffmpeg.org with subject "unsubscribe".