[FFmpeg-cvslog] avcodec/aacpsy: Avoid floating point division by 0 of norm_fac
ffmpeg | branch: master | Michael Niedermayer | Fri
May 28 20:18:25 2021 +0200| [223b5e8ac9f6461bb13ed365419ec485c5b2b002] |
committer: Michael Niedermayer
avcodec/aacpsy: Avoid floating point division by 0 of norm_fac
Fixes: Ticket7995
Fixes: CVE-2020-20446
Signed-off-by: Michael Niedermayer
> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=223b5e8ac9f6461bb13ed365419ec485c5b2b002
---
libavcodec/aacpsy.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/libavcodec/aacpsy.c b/libavcodec/aacpsy.c
index 482113d427..e51d29750b 100644
--- a/libavcodec/aacpsy.c
+++ b/libavcodec/aacpsy.c
@@ -794,7 +794,7 @@ static void psy_3gpp_analyze_channel(FFPsyContext *ctx, int
channel,
if (pe < 1.15f * desired_pe) {
/* 6.6.1.3.6 "Final threshold modification by linearization" */
-norm_fac = 1.0f / norm_fac;
+norm_fac = norm_fac ? 1.0f / norm_fac : 0;
for (w = 0; w < wi->num_windows*16; w += 16) {
for (g = 0; g < num_bands; g++) {
AacPsyBand *band = &pch->band[w+g];
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[FFmpeg-cvslog] avcodec/aacenc: Avoid 0 lambda
ffmpeg | branch: master | Michael Niedermayer | Fri
May 28 21:37:26 2021 +0200| [a7a7f32c8ad0179a1a85d0a8cff35924e6d90be8] |
committer: Michael Niedermayer
avcodec/aacenc: Avoid 0 lambda
Fixes: Ticket8003
Fixes: CVE-2020-20453
Signed-off-by: Michael Niedermayer
> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=a7a7f32c8ad0179a1a85d0a8cff35924e6d90be8
---
libavcodec/aacenc.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/libavcodec/aacenc.c b/libavcodec/aacenc.c
index aa223cf25f..e80591ba86 100644
--- a/libavcodec/aacenc.c
+++ b/libavcodec/aacenc.c
@@ -28,6 +28,7 @@
* TODOs:
* add sane pulse detection
***/
+#include
#include "libavutil/libm.h"
#include "libavutil/float_dsp.h"
@@ -852,7 +853,7 @@ static int aac_encode_frame(AVCodecContext *avctx, AVPacket
*avpkt,
/* Not so fast though */
ratio = sqrtf(ratio);
}
-s->lambda = FFMIN(s->lambda * ratio, 65536.f);
+s->lambda = av_clipf(s->lambda * ratio, FLT_MIN, 65536.f);
/* Keep iterating if we must reduce and lambda is in the sky */
if (ratio > 0.9f && ratio < 1.1f) {
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[FFmpeg-cvslog] avcodec/lpc: Avoid floating point division by 0
ffmpeg | branch: master | Michael Niedermayer | Fri May 28 20:31:19 2021 +0200| [38d18fb57863bb9c54e68ae44aa780c5c282a184] | committer: Michael Niedermayer avcodec/lpc: Avoid floating point division by 0 Fixes: Ticket7996 Fixes: CVE-2020-20445 Signed-off-by: Michael Niedermayer > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=38d18fb57863bb9c54e68ae44aa780c5c282a184 --- libavcodec/lpc.c | 2 +- libavcodec/lpc.h | 4 ++-- 2 files changed, 3 insertions(+), 3 deletions(-) diff --git a/libavcodec/lpc.c b/libavcodec/lpc.c index 1d1d04fd80..3ed61563ee 100644 --- a/libavcodec/lpc.c +++ b/libavcodec/lpc.c @@ -189,7 +189,7 @@ double ff_lpc_calc_ref_coefs_f(LPCContext *s, const float *samples, int len, compute_ref_coefs(autoc, order, ref, error); for (i = 0; i < order; i++) avg_err = (avg_err + error[i])/2.0f; -return signal/avg_err; +return avg_err ? signal/avg_err : NAN; } /** diff --git a/libavcodec/lpc.h b/libavcodec/lpc.h index 88ca247f87..52170fd623 100644 --- a/libavcodec/lpc.h +++ b/libavcodec/lpc.h @@ -143,7 +143,7 @@ static inline void compute_ref_coefs(const LPC_TYPE *autoc, int max_order, gen0[i] = gen1[i] = autoc[i + 1]; err= autoc[0]; -ref[0] = -gen1[0] / err; +ref[0] = -gen1[0] / ((USE_FIXED || err) ? err : 1); err += gen1[0] * ref[0]; if (error) error[0] = err; @@ -152,7 +152,7 @@ static inline void compute_ref_coefs(const LPC_TYPE *autoc, int max_order, gen1[j] = gen1[j + 1] + ref[i - 1] * gen0[j]; gen0[j] = gen1[j + 1] * ref[i - 1] + gen0[j]; } -ref[i] = -gen1[0] / err; +ref[i] = -gen1[0] / ((USE_FIXED || err) ? err : 1); err += gen1[0] * ref[i]; if (error) error[i] = err; ___ 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".
[FFmpeg-cvslog] avformat/movenc: Check pal_size before use
ffmpeg | branch: master | Michael Niedermayer | Sat
May 29 09:22:27 2021 +0200| [4c1afa292520329eecd1cc7631bc59a8cca95c46] |
committer: Michael Niedermayer
avformat/movenc: Check pal_size before use
Fixes: assertion failure
Fixes: out of array read
Fixes: Ticket8190
Fixes: CVE-2020-22015
Signed-off-by: Michael Niedermayer
> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=4c1afa292520329eecd1cc7631bc59a8cca95c46
---
libavformat/movenc.c | 6 --
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/libavformat/movenc.c b/libavformat/movenc.c
index 2ab507df15..7d839f447b 100644
--- a/libavformat/movenc.c
+++ b/libavformat/movenc.c
@@ -2160,11 +2160,13 @@ static int mov_write_video_tag(AVFormatContext *s,
AVIOContext *pb, MOVMuxContex
avio_wb16(pb, 0x18); /* Reserved */
if (track->mode == MODE_MOV && track->par->format == AV_PIX_FMT_PAL8) {
-int pal_size = 1 << track->par->bits_per_coded_sample;
-int i;
+int pal_size, i;
avio_wb16(pb, 0); /* Color table ID */
avio_wb32(pb, 0); /* Color table seed */
avio_wb16(pb, 0x8000);/* Color table flags */
+if (track->par->bits_per_coded_sample < 0 ||
track->par->bits_per_coded_sample > 8)
+return AVERROR(EINVAL);
+pal_size = 1 << track->par->bits_per_coded_sample;
avio_wb16(pb, pal_size - 1); /* Color table size (zero-relative) */
for (i = 0; i < pal_size; i++) {
uint32_t rgb = track->palette[i];
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[FFmpeg-cvslog] avfilter/vf_vmafmotion: Check dimensions
ffmpeg | branch: master | Michael Niedermayer | Sat May 29 09:58:31 2021 +0200| [82ad1b76751bcfad5005440db48c46a4de5d6f02] | committer: Michael Niedermayer avfilter/vf_vmafmotion: Check dimensions Fixes: out of array access Fixes: Ticket8241 Fixes: Ticket8246 Fixes: CVE-2020-22019 Fixes: CVE-2020-22033 Signed-off-by: Michael Niedermayer > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=82ad1b76751bcfad5005440db48c46a4de5d6f02 --- libavfilter/vf_vmafmotion.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/libavfilter/vf_vmafmotion.c b/libavfilter/vf_vmafmotion.c index 2db4783d8d..454ebb8afa 100644 --- a/libavfilter/vf_vmafmotion.c +++ b/libavfilter/vf_vmafmotion.c @@ -238,6 +238,9 @@ int ff_vmafmotion_init(VMAFMotionData *s, int i; const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(fmt); +if (w < 3 || h < 3) +return AVERROR(EINVAL); + s->width = w; s->height = h; s->stride = FFALIGN(w * sizeof(uint16_t), 32); ___ 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".
[FFmpeg-cvslog] avfilter/vf_yadif: Fix handing of tiny images
ffmpeg | branch: master | Michael Niedermayer | Sat May 29 11:17:35 2021 +0200| [7971f62120a55c141ec437aa3f0bacc1c1a3526b] | committer: Michael Niedermayer avfilter/vf_yadif: Fix handing of tiny images Fixes: out of array access Fixes: Ticket8240 Fixes: CVE-2020-22021 Signed-off-by: Michael Niedermayer > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=7971f62120a55c141ec437aa3f0bacc1c1a3526b --- libavfilter/vf_yadif.c | 32 ++-- 1 file changed, 18 insertions(+), 14 deletions(-) diff --git a/libavfilter/vf_yadif.c b/libavfilter/vf_yadif.c index 91cc79ecc3..b0d9fbaf1f 100644 --- a/libavfilter/vf_yadif.c +++ b/libavfilter/vf_yadif.c @@ -123,20 +123,22 @@ static void filter_edges(void *dst1, void *prev1, void *cur1, void *next1, uint8_t *next2 = parity ? cur : next; const int edge = MAX_ALIGN - 1; +int offset = FFMAX(w - edge, 3); /* Only edge pixels need to be processed here. A constant value of false * for is_not_edge should let the compiler ignore the whole branch. */ -FILTER(0, 3, 0) +FILTER(0, FFMIN(3, w), 0) -dst = (uint8_t*)dst1 + w - edge; -prev = (uint8_t*)prev1 + w - edge; -cur = (uint8_t*)cur1 + w - edge; -next = (uint8_t*)next1 + w - edge; +dst = (uint8_t*)dst1 + offset; +prev = (uint8_t*)prev1 + offset; +cur = (uint8_t*)cur1 + offset; +next = (uint8_t*)next1 + offset; prev2 = (uint8_t*)(parity ? prev : cur); next2 = (uint8_t*)(parity ? cur : next); -FILTER(w - edge, w - 3, 1) -FILTER(w - 3, w, 0) +FILTER(offset, w - 3, 1) +offset = FFMAX(offset, w - 3); +FILTER(offset, w, 0) } @@ -170,21 +172,23 @@ static void filter_edges_16bit(void *dst1, void *prev1, void *cur1, void *next1, uint16_t *next2 = parity ? cur : next; const int edge = MAX_ALIGN / 2 - 1; +int offset = FFMAX(w - edge, 3); mrefs /= 2; prefs /= 2; -FILTER(0, 3, 0) +FILTER(0, FFMIN(3, w), 0) -dst = (uint16_t*)dst1 + w - edge; -prev = (uint16_t*)prev1 + w - edge; -cur = (uint16_t*)cur1 + w - edge; -next = (uint16_t*)next1 + w - edge; +dst = (uint16_t*)dst1 + offset; +prev = (uint16_t*)prev1 + offset; +cur = (uint16_t*)cur1 + offset; +next = (uint16_t*)next1 + offset; prev2 = (uint16_t*)(parity ? prev : cur); next2 = (uint16_t*)(parity ? cur : next); -FILTER(w - edge, w - 3, 1) -FILTER(w - 3, w, 0) +FILTER(offset, w - 3, 1) +offset = FFMAX(offset, w - 3); +FILTER(offset, w, 0) } static int filter_slice(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs) ___ 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".
[FFmpeg-cvslog] avfilter/bwdif: Fix time base for large denominators
ffmpeg | branch: master | Philip Langdale | Sat May 29
13:19:26 2021 -0700| [7885ab3036a3f2a5a1f317880a9a2c002e1239ff] | committer:
Philip Langdale
avfilter/bwdif: Fix time base for large denominators
This is the same fix applied to regular yadif.
Signed-off-by: Philip Langdale
> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=7885ab3036a3f2a5a1f317880a9a2c002e1239ff
---
libavfilter/vf_bwdif.c | 7 +++
1 file changed, 3 insertions(+), 4 deletions(-)
diff --git a/libavfilter/vf_bwdif.c b/libavfilter/vf_bwdif.c
index faba945c7f..49b6e73f11 100644
--- a/libavfilter/vf_bwdif.c
+++ b/libavfilter/vf_bwdif.c
@@ -335,10 +335,9 @@ static int config_props(AVFilterLink *link)
BWDIFContext *s = link->src->priv;
YADIFContext *yadif = &s->yadif;
-link->time_base.num = link->src->inputs[0]->time_base.num;
-link->time_base.den = link->src->inputs[0]->time_base.den * 2;
-link->w = link->src->inputs[0]->w;
-link->h = link->src->inputs[0]->h;
+link->time_base = av_mul_q(ctx->inputs[0]->time_base, (AVRational){1, 2});
+link->w = link->src->inputs[0]->w;
+link->h = link->src->inputs[0]->h;
if(yadif->mode&1)
link->frame_rate = av_mul_q(link->src->inputs[0]->frame_rate,
(AVRational){2,1});
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[FFmpeg-cvslog] avfilter/yadif_cuda: Fix time base for large denominators
ffmpeg | branch: master | Philip Langdale | Sat May 29
13:15:55 2021 -0700| [8f8a7e491da5a4d5f6809dd1e56056c46f0cb123] | committer:
Philip Langdale
avfilter/yadif_cuda: Fix time base for large denominators
This is the same fix applied to regular yadif.
Signed-off-by: Philip Langdale
> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=8f8a7e491da5a4d5f6809dd1e56056c46f0cb123
---
libavfilter/vf_yadif_cuda.c | 7 +++
1 file changed, 3 insertions(+), 4 deletions(-)
diff --git a/libavfilter/vf_yadif_cuda.c b/libavfilter/vf_yadif_cuda.c
index 4e41c8b554..bbdbfc1adc 100644
--- a/libavfilter/vf_yadif_cuda.c
+++ b/libavfilter/vf_yadif_cuda.c
@@ -297,10 +297,9 @@ static int config_output(AVFilterLink *link)
goto exit;
}
-link->time_base.num = ctx->inputs[0]->time_base.num;
-link->time_base.den = ctx->inputs[0]->time_base.den * 2;
-link->w = ctx->inputs[0]->w;
-link->h = ctx->inputs[0]->h;
+link->time_base = av_mul_q(ctx->inputs[0]->time_base, (AVRational){1, 2});
+link->w = ctx->inputs[0]->w;
+link->h = ctx->inputs[0]->h;
if(y->mode & 1)
link->frame_rate = av_mul_q(ctx->inputs[0]->frame_rate,
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[FFmpeg-cvslog] avcodec/nvenc: disable s12m timestamps by default
ffmpeg | branch: master | Timo Rothenpieler | Sat May
29 22:53:38 2021 +0200| [8d0fea81c736280ff19283b05cd0ad935d1e35c5] | committer:
Timo Rothenpieler
avcodec/nvenc: disable s12m timestamps by default
Leads to weird crashes with valid looking input data for otherwise
unknown reasons.
> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=8d0fea81c736280ff19283b05cd0ad935d1e35c5
---
libavcodec/nvenc_hevc.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/libavcodec/nvenc_hevc.c b/libavcodec/nvenc_hevc.c
index 007099242a..2c8b2197cf 100644
--- a/libavcodec/nvenc_hevc.c
+++ b/libavcodec/nvenc_hevc.c
@@ -148,7 +148,7 @@ static const AVOption options[] = {
{ "middle", "", 0,
AV_OPT_TYPE_CONST, { .i64 = 2 }, 0, 0, VE, "b_ref_mode" },
#endif
{ "a53cc","Use A53 Closed Captions (if available)",
OFFSET(a53_cc), AV_OPT_TYPE_BOOL, { .i64 = 1 }, 0, 1, VE },
-{ "s12m_tc", "Use timecode (if available)",OFFSET(s12m_tc),
AV_OPT_TYPE_BOOL, { .i64 = 1 }, 0, 1, VE },
+{ "s12m_tc", "Use timecode (if available)",OFFSET(s12m_tc),
AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, VE },
{ "dpb_size", "Specifies the DPB size used for encoding (0 means
automatic)",
OFFSET(dpb_size),
AV_OPT_TYPE_INT, { .i64 = 0 }, 0, INT_MAX, VE },
#ifdef NVENC_HAVE_MULTIPASS
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[FFmpeg-cvslog] avcodec/nvenc: disable s12m timestamps by default
ffmpeg | branch: release/4.4 | Timo Rothenpieler | Sat
May 29 22:53:38 2021 +0200| [8d172d940946dce59841b1c95059f3b38f68ca61] |
committer: Timo Rothenpieler
avcodec/nvenc: disable s12m timestamps by default
Leads to weird crashes with valid looking input data for otherwise
unknown reasons.
> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=8d172d940946dce59841b1c95059f3b38f68ca61
---
libavcodec/nvenc_hevc.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/libavcodec/nvenc_hevc.c b/libavcodec/nvenc_hevc.c
index 441e7871d2..82fbb23bf7 100644
--- a/libavcodec/nvenc_hevc.c
+++ b/libavcodec/nvenc_hevc.c
@@ -148,7 +148,7 @@ static const AVOption options[] = {
{ "middle", "", 0,
AV_OPT_TYPE_CONST, { .i64 = 2 }, 0, 0, VE, "b_ref_mode" },
#endif
{ "a53cc","Use A53 Closed Captions (if available)",
OFFSET(a53_cc), AV_OPT_TYPE_BOOL, { .i64 = 1 }, 0, 1, VE },
-{ "s12m_tc", "Use timecode (if available)",OFFSET(s12m_tc),
AV_OPT_TYPE_BOOL, { .i64 = 1 }, 0, 1, VE },
+{ "s12m_tc", "Use timecode (if available)",OFFSET(s12m_tc),
AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, VE },
{ "dpb_size", "Specifies the DPB size used for encoding (0 means
automatic)",
OFFSET(dpb_size),
AV_OPT_TYPE_INT, { .i64 = 0 }, 0, INT_MAX, VE },
#ifdef NVENC_HAVE_MULTIPASS
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[FFmpeg-cvslog] avformat/hls: relay format options to segment demuxer
ffmpeg | branch: master | Gyan Doshi | Sat May 29 15:45:18
2021 +0530| [51f1194edae2020ec99b816bd045a29db0e469f8] | committer: Gyan Doshi
avformat/hls: relay format options to segment demuxer
Signed-off-by: Gyan Doshi
Reviewed-by: Steven Liu
> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=51f1194edae2020ec99b816bd045a29db0e469f8
---
doc/demuxers.texi | 3 +++
libavformat/hls.c | 9 -
2 files changed, 11 insertions(+), 1 deletion(-)
diff --git a/doc/demuxers.texi b/doc/demuxers.texi
index 13fe17ff4f..2575dad704 100644
--- a/doc/demuxers.texi
+++ b/doc/demuxers.texi
@@ -347,6 +347,9 @@ Enabled by default for HTTP/1.1 servers.
@item http_seekable
Use HTTP partial requests for downloading HTTP segments.
0 = disable, 1 = enable, -1 = auto, Default is auto.
+
+@item seg_format_options
+Set options for the demuxer of media segments using a list of key=value pairs
separated by @code{:}.
@end table
@section image2
diff --git a/libavformat/hls.c b/libavformat/hls.c
index 8fc6924c90..c2ca23e973 100644
--- a/libavformat/hls.c
+++ b/libavformat/hls.c
@@ -207,6 +207,7 @@ typedef struct HLSContext {
int64_t cur_timestamp;
AVIOInterruptCB *interrupt_callback;
AVDictionary *avio_opts;
+AVDictionary *seg_format_opts;
char *allowed_extensions;
int max_reload;
int http_persistent;
@@ -1959,6 +1960,7 @@ static int hls_read_header(AVFormatContext *s)
struct playlist *pls = c->playlists[i];
const AVInputFormat *in_fmt = NULL;
char *url;
+AVDictionary *seg_format_opts = NULL;
if (!(pls->ctx = avformat_alloc_context())) {
ret = AVERROR(ENOMEM);
@@ -2017,7 +2019,10 @@ static int hls_read_header(AVFormatContext *s)
if ((ret = ff_copy_whiteblacklists(pls->ctx, s)) < 0)
goto fail;
-ret = avformat_open_input(&pls->ctx, pls->segments[0]->url, in_fmt,
NULL);
+av_dict_copy(&seg_format_opts, c->seg_format_opts, 0);
+
+ret = avformat_open_input(&pls->ctx, pls->segments[0]->url, in_fmt,
&seg_format_opts);
+av_dict_free(&seg_format_opts);
if (ret < 0)
goto fail;
@@ -2403,6 +2408,8 @@ static const AVOption hls_options[] = {
OFFSET(http_multiple), AV_OPT_TYPE_BOOL, {.i64 = -1}, -1, 1, FLAGS},
{"http_seekable", "Use HTTP partial requests, 0 = disable, 1 = enable, -1
= auto",
OFFSET(http_seekable), AV_OPT_TYPE_BOOL, { .i64 = -1}, -1, 1, FLAGS},
+{"seg_format_options", "Set options for segment demuxer",
+OFFSET(seg_format_opts), AV_OPT_TYPE_DICT, {.str = NULL}, 0, 0, FLAGS},
{NULL}
};
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