e = sscanf(buf, "FFmpeg v%d.%d.%d / libavcodec build: %d", &ver, &ver2, &ver3, &build);
if (e != 4) {
e = sscanf(buf, "Lavc%d.%d.%d", &ver, &ver2, &ver3) + 1;
- if (e > 1)
- build = (ver << 16) + (ver2 << 8) + ver3;
+ if (e > 1) {
+ if (ver > 0xFF || ver2 > 0xFF || ver3 > 0xFF) {
+ av_log(s->avctx, AV_LOG_WARNING,
+ "Unknown Lavc version string encountered, %d.%d.%d; "
+ "clamping sub-version values to 8-bits.\n",
+ ver, ver2, ver3);
+ }
+ build = ((ver & 0xFF) << 16) + ((ver2 & 0xFF) << 8) + (ver3 & 0xFF);
+ }
}
if (e != 4) {
if (strcmp(buf, "ffmpeg") == 0)