ffmpeg | branch: release/4.3 | Michael Niedermayer <mich...@niedermayer.cc> | Sat May 11 20:50:44 2024 +0200| [4f5ae895ce9172691d3a2b3e6c3474820d617f7a] | committer: Michael Niedermayer
avcodec/lpc: copy levenson coeffs only when they have been computed Fixes: CID1473514 Uninitialized scalar variable Sponsored-by: Sovereign Tech Fund Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> (cherry picked from commit c2d897f3566fdf5c190583c6f5197ead5abec2ed) Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=4f5ae895ce9172691d3a2b3e6c3474820d617f7a --- libavcodec/lpc.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/libavcodec/lpc.c b/libavcodec/lpc.c index c990cfc6c3..fc97ce3ae0 100644 --- a/libavcodec/lpc.c +++ b/libavcodec/lpc.c @@ -243,8 +243,10 @@ int ff_lpc_calc_coefs(LPCContext *s, double av_uninit(weight); memset(var, 0, FFALIGN(MAX_LPC_ORDER+1,4)*sizeof(*var)); - for(j=0; j<max_order; j++) - m[0].coeff[max_order-1][j] = -lpc[max_order-1][j]; + /* Avoids initializing with an unused value when lpc_passes == 1 */ + if (lpc_passes > 1) + for(j=0; j<max_order; j++) + m[0].coeff[max_order-1][j] = -lpc[max_order-1][j]; for(; pass<lpc_passes; pass++){ avpriv_init_lls(&m[pass&1], max_order); _______________________________________________ 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".
