ffmpeg | branch: master | James Almer <jamr...@gmail.com> | Sat Sep 28 23:11:06 2019 -0300| [e3f0ecfc57889de0e0a359ec30b77851d53cea87] | committer: James Almer
avcodec/fitsdec: fix use of uninitialised values header.data_max and header.data_min are not necessarely set on all decoding scenarios. Fixes a Valgrind reported regression since cfa193779103c97bbfc28273a0ab12c114b6786d. Reviewed-by: Michael Niedermayer <mich...@niedermayer.cc> Signed-off-by: James Almer <jamr...@gmail.com> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=e3f0ecfc57889de0e0a359ec30b77851d53cea87 --- libavcodec/fitsdec.c | 14 +++++++------- 1 file changed, 7 insertions(+), 7 deletions(-) diff --git a/libavcodec/fitsdec.c b/libavcodec/fitsdec.c index 88b841a964..a20b8faf9e 100644 --- a/libavcodec/fitsdec.c +++ b/libavcodec/fitsdec.c @@ -195,7 +195,6 @@ static int fits_decode_frame(AVCodecContext *avctx, void *data, int *got_frame, uint8_t *dst8; uint16_t *dst16; uint64_t t; - double scale; FITSHeader header; FITSContext * fitsctx = avctx->priv_data; @@ -205,12 +204,6 @@ static int fits_decode_frame(AVCodecContext *avctx, void *data, int *got_frame, if (ret < 0) return ret; - scale = header.data_max - header.data_min; - if (scale <= 0 || !isfinite(scale)) { - scale = 1; - } - scale = 1/scale; - if (header.rgb) { if (header.bitpix == 8) { if (header.naxisn[2] == 3) { @@ -271,6 +264,13 @@ static int fits_decode_frame(AVCodecContext *avctx, void *data, int *got_frame, CASE_RGB(16, dst16, uint16_t, AV_RB16); } } else { + double scale = header.data_max - header.data_min; + + if (scale <= 0 || !isfinite(scale)) { + scale = 1; + } + scale = 1/scale; + switch (header.bitpix) { #define CASE_GRAY(cas, dst, type, t, rd) \ case cas: \ _______________________________________________ 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".
