[FFmpeg-devel] [PATCH 01/10] fftools/ffmpeg_enc: simplify opaque_ref check

[FFmpeg-devel] [PATCH 01/10] fftools/ffmpeg_enc: simplify opaque_ref check

[Michael Niedermayer]

Found-while-revieweing: CID1520670 Dereference after null check

Sponsored-by: Sovereign Tech Fund
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
---
 fftools/ffmpeg_enc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fftools/ffmpeg_enc.c b/fftools/ffmpeg_enc.c
index 618ba193ff5..863d1a43edd 100644
--- a/fftools/ffmpeg_enc.c
+++ b/fftools/ffmpeg_enc.c
@@ -476,7 +476,7 @@ void enc_stats_write(OutputStream *ost, EncStats *es,
 
     const FrameData *fd;
 
-    if ((frame && frame->opaque_ref) || (pkt && pkt->opaque_ref)) {
+    if (frame ? frame->opaque_ref : pkt->opaque_ref) {
         fd   = (const FrameData*)(frame ? frame->opaque_ref->data : pkt->opaque_ref->data);
         tbi  = fd->dec.tb;
         ptsi = fd->dec.pts;
-- 
2.43.2

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[FFmpeg-devel] [PATCH 02/10] fftools/ffmpeg_enc: Initialize fd

[Michael Niedermayer]

Fixes: CID1520677 Uninitialized pointer read

Sponsored-by: Sovereign Tech Fund
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
---
 fftools/ffmpeg_enc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fftools/ffmpeg_enc.c b/fftools/ffmpeg_enc.c
index 863d1a43edd..0b3f3f101a2 100644
--- a/fftools/ffmpeg_enc.c
+++ b/fftools/ffmpeg_enc.c
@@ -474,7 +474,7 @@ void enc_stats_write(OutputStream *ost, EncStats *es,
     AVRational  tbi = (AVRational){ 0, 1};
     int64_t    ptsi = INT64_MAX;
 
-    const FrameData *fd;
+    const FrameData *fd = NULL;
 
     if (frame ? frame->opaque_ref : pkt->opaque_ref) {
         fd   = (const FrameData*)(frame ? frame->opaque_ref->data : pkt->opaque_ref->data);
-- 
2.43.2

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[FFmpeg-devel] [PATCH 03/10] fftools/ffmpeg_enc: Initialize Decoder

[Michael Niedermayer]

Fixes: CID1591439 Uninitialized pointer read

Sponsored-by: Sovereign Tech Fund
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
---
 fftools/ffmpeg_enc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fftools/ffmpeg_enc.c b/fftools/ffmpeg_enc.c
index 0b3f3f101a2..928114c20ff 100644
--- a/fftools/ffmpeg_enc.c
+++ b/fftools/ffmpeg_enc.c
@@ -168,7 +168,7 @@ int enc_open(void *opaque, const AVFrame *frame)
     InputStream *ist = ost->ist;
     Encoder              *e = ost->enc;
     AVCodecContext *enc_ctx = ost->enc_ctx;
-    Decoder            *dec;
+    Decoder            *dec = NULL;
     const AVCodec      *enc = enc_ctx->codec;
     OutputFile          *of = ost->file;
     FrameData *fd;
-- 
2.43.2

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[FFmpeg-devel] [PATCH 04/10] fftools/ffmpeg_mux: Remove unneeded initialization

[Michael Niedermayer]

Not sure this change makes sense, the code is more robust with ret set

Fixes: CID1559178 Unused value

Sponsored-by: Sovereign Tech Fund
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
---
 fftools/ffmpeg_mux.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/fftools/ffmpeg_mux.c b/fftools/ffmpeg_mux.c
index a1583edd618..4306067eca2 100644
--- a/fftools/ffmpeg_mux.c
+++ b/fftools/ffmpeg_mux.c
@@ -290,7 +290,7 @@ static int mux_packet_filter(Muxer *mux, MuxThreadContext *mt,
 {
     MuxStream *ms = ms_from_ost(ost);
     const char *err_msg;
-    int ret = 0;
+    int ret;
 
     if (pkt && !ost->enc) {
         ret = of_streamcopy(&mux->of, ost, pkt);
@@ -299,7 +299,6 @@ static int mux_packet_filter(Muxer *mux, MuxThreadContext *mt,
         else if (ret == AVERROR_EOF) {
             av_packet_unref(pkt);
             pkt = NULL;
-            ret = 0;
             *stream_eof = 1;
         } else if (ret < 0)
             goto fail;
-- 
2.43.2

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[FFmpeg-devel] [PATCH 05/10] fftools/ffmpeg_mux_init: Free pts on error

[Michael Niedermayer]

Fixes: CID1538863 Resource leak

Sponsored-by: Sovereign Tech Fund
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
---
 fftools/ffmpeg_mux_init.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fftools/ffmpeg_mux_init.c b/fftools/ffmpeg_mux_init.c
index 8797265145c..b1cb6cf7bd7 100644
--- a/fftools/ffmpeg_mux_init.c
+++ b/fftools/ffmpeg_mux_init.c
@@ -3025,7 +3025,7 @@ static int parse_forced_key_frames(void *log, KeyframeForceCtx *kf,
             if (nb_ch > INT_MAX - size ||
                 !(pts = av_realloc_f(pts, size += nb_ch - 1,
                                      sizeof(*pts))))
-                return AVERROR(ENOMEM);
+                goto fail;
 
             if (p[8]) {
                 ret = av_parse_time(&t, p + 8, 1);
-- 
2.43.2

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[FFmpeg-devel] [PATCH 06/10] fftools/ffmpeg_mux_init: Cleanup on error return in set_dispositions()

[Michael Niedermayer]

Fixes: CID1539099 Resource leak

Sponsored-by: Sovereign Tech Fund
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
---
 fftools/ffmpeg.h          | 9 +++++++--
 fftools/ffmpeg_mux_init.c | 2 +-
 2 files changed, 8 insertions(+), 3 deletions(-)

diff --git a/fftools/ffmpeg.h b/fftools/ffmpeg.h
index 885a7c0c102..7fd6c57d50f 100644
--- a/fftools/ffmpeg.h
+++ b/fftools/ffmpeg.h
@@ -868,7 +868,7 @@ void update_benchmark(const char *fmt, ...);
            namestr, st->index, o->optname.opt_canon->name, spec[0] ? ":" : "", spec, so->u.type);\
 }
 
-#define MATCH_PER_STREAM_OPT(name, type, outvar, fmtctx, st)\
+#define MATCH_PER_STREAM_OPT_CLEAN(name, type, outvar, fmtctx, st, clean)\
 {\
     int _ret, _matches = 0, _match_idx;\
     for (int _i = 0; _i < o->name.nb_opt; _i++) {\
@@ -878,12 +878,17 @@ void update_benchmark(const char *fmt, ...);
             _match_idx = _i;\
             _matches++;\
         } else if (_ret < 0)\
-            return _ret;\
+            clean;\
     }\
     if (_matches > 1 && o->name.opt_canon)\
        WARN_MULTIPLE_OPT_USAGE(name, type, _match_idx, st);\
 }
 
+#define MATCH_PER_STREAM_OPT(name, type, outvar, fmtctx, st)\
+{\
+    MATCH_PER_STREAM_OPT_CLEAN(name, type, outvar, fmtctx, st, return _ret)\
+}
+
 const char *opt_match_per_type_str(const SpecifierOptList *sol,
                                    char mediatype);
 
diff --git a/fftools/ffmpeg_mux_init.c b/fftools/ffmpeg_mux_init.c
index b1cb6cf7bd7..1262630b24e 100644
--- a/fftools/ffmpeg_mux_init.c
+++ b/fftools/ffmpeg_mux_init.c
@@ -2933,7 +2933,7 @@ static int set_dispositions(Muxer *mux, const OptionsContext *o)
 
         nb_streams[ost->type + 1]++;
 
-        MATCH_PER_STREAM_OPT(disposition, str, dispositions[i], ctx, ost->st);
+        MATCH_PER_STREAM_OPT_CLEAN(disposition, str, dispositions[i], ctx, ost->st, goto finish);
 
         have_manual |= !!dispositions[i];
 
-- 
2.43.2

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[FFmpeg-devel] [PATCH 07/10] fftools/cmdutils: Add protective () to FLAGS

[Michael Niedermayer]

issue found while reviewing CID1452612 Free of array-typed value

Sponsored-by: Sovereign Tech Fund
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
---
 fftools/cmdutils.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fftools/cmdutils.c b/fftools/cmdutils.c
index a8f5c6d89b4..d28f5f3a8bd 100644
--- a/fftools/cmdutils.c
+++ b/fftools/cmdutils.c
@@ -578,7 +578,7 @@ static const AVOption *opt_find(void *obj, const char *name, const char *unit,
     return o;
 }
 
-#define FLAGS (o->type == AV_OPT_TYPE_FLAGS && (arg[0]=='-' || arg[0]=='+')) ? AV_DICT_APPEND : 0
+#define FLAGS ((o->type == AV_OPT_TYPE_FLAGS && (arg[0]=='-' || arg[0]=='+')) ? AV_DICT_APPEND : 0)
 int opt_default(void *optctx, const char *opt, const char *arg)
 {
     const AVOption *o;
-- 
2.43.2

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[FFmpeg-devel] [PATCH 08/10] fftools/ffmpeg_sched: Remove dead assignments in sch_dec_send()

[Michael Niedermayer]

Fixes: CID1592383 Unused value

Sponsored-by: Sovereign Tech Fund
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
---
 fftools/ffmpeg_sched.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/fftools/ffmpeg_sched.c b/fftools/ffmpeg_sched.c
index e58b00ea97b..cff824340b7 100644
--- a/fftools/ffmpeg_sched.c
+++ b/fftools/ffmpeg_sched.c
@@ -2174,7 +2174,7 @@ finish:
 int sch_dec_send(Scheduler *sch, unsigned dec_idx, AVFrame *frame)
 {
     SchDec *dec;
-    int ret = 0;
+    int ret;
     unsigned nb_done = 0;
 
     av_assert0(dec_idx < sch->nb_dec);
@@ -2201,7 +2201,6 @@ int sch_dec_send(Scheduler *sch, unsigned dec_idx, AVFrame *frame)
             av_frame_unref(to_send);
             if (ret == AVERROR_EOF) {
                 nb_done++;
-                ret = 0;
                 continue;
             }
             return ret;
-- 
2.43.2

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[FFmpeg-devel] [PATCH 09/10] fftools/ffplay: Check return of swr_alloc_set_opts2()

[Michael Niedermayer]

This probably makes no difference but its more correct

Fixes: CID1503080 Unchecked return value

Sponsored-by: Sovereign Tech Fund
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
---
 fftools/ffplay.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/fftools/ffplay.c b/fftools/ffplay.c
index d4300d5d46e..63a9806fb80 100644
--- a/fftools/ffplay.c
+++ b/fftools/ffplay.c
@@ -2392,11 +2392,11 @@ static int audio_decode_frame(VideoState *is)
         af->frame->sample_rate   != is->audio_src.freq           ||
         (wanted_nb_samples       != af->frame->nb_samples && !is->swr_ctx)) {
         swr_free(&is->swr_ctx);
-        swr_alloc_set_opts2(&is->swr_ctx,
+        int ret = swr_alloc_set_opts2(&is->swr_ctx,
                             &is->audio_tgt.ch_layout, is->audio_tgt.fmt, is->audio_tgt.freq,
                             &af->frame->ch_layout, af->frame->format, af->frame->sample_rate,
                             0, NULL);
-        if (!is->swr_ctx || swr_init(is->swr_ctx) < 0) {
+        if (ret < 0 || swr_init(is->swr_ctx) < 0) {
             av_log(NULL, AV_LOG_ERROR,
                    "Cannot create sample rate converter for conversion of %d Hz %s %d channels to %d Hz %s %d channels!\n",
                     af->frame->sample_rate, av_get_sample_fmt_name(af->frame->format), af->frame->ch_layout.nb_channels,
-- 
2.43.2

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[FFmpeg-devel] [PATCH 10/10] fftools/ffplay: Check vulkan_params

[Michael Niedermayer]

Fixes: CID1550133 Unchecked return value

Sponsored-by: Sovereign Tech Fund
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
---
 fftools/ffplay.c | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/fftools/ffplay.c b/fftools/ffplay.c
index 63a9806fb80..cc00e209d52 100644
--- a/fftools/ffplay.c
+++ b/fftools/ffplay.c
@@ -3839,8 +3839,13 @@ int main(int argc, char **argv)
         if (vk_renderer) {
             AVDictionary *dict = NULL;
 
-            if (vulkan_params)
-                av_dict_parse_string(&dict, vulkan_params, "=", ":", 0);
+            if (vulkan_params) {
+                int ret = av_dict_parse_string(&dict, vulkan_params, "=", ":", 0);
+                if (ret < 0) {
+                    av_log(NULL, AV_LOG_FATAL, "Failed to parse, %s\n", vulkan_params);
+                    do_exit(NULL);
+                }
+            }
             ret = vk_renderer_create(vk_renderer, window, dict);
             av_dict_free(&dict);
             if (ret < 0) {
-- 
2.43.2

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Re: [FFmpeg-devel] [PATCH 09/10] fftools/ffplay: Check return of swr_alloc_set_opts2()

[Michael Niedermayer]

[-- Attachment #1.1: Type: text/plain, Size: 558 bytes --]

On Sun, Apr 28, 2024 at 01:54:23AM +0200, Michael Niedermayer wrote:
> This probably makes no difference but its more correct
> 
> Fixes: CID1503080 Unchecked return value
> 
> Sponsored-by: Sovereign Tech Fund
> Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
> ---
>  fftools/ffplay.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)

will apply

[...]
-- 
Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

In a rich man's house there is no place to spit but his face.
-- Diogenes of Sinope

[-- Attachment #1.2: signature.asc --]
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Re: [FFmpeg-devel] [PATCH 05/10] fftools/ffmpeg_mux_init: Free pts on error

[Michael Niedermayer]

[-- Attachment #1.1: Type: text/plain, Size: 580 bytes --]

On Sun, Apr 28, 2024 at 01:54:19AM +0200, Michael Niedermayer wrote:
> Fixes: CID1538863 Resource leak
> 
> Sponsored-by: Sovereign Tech Fund
> Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
> ---
>  fftools/ffmpeg_mux_init.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)

will apply

[...]
-- 
Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

Homeopathy is like voting while filling the ballot out with transparent ink.
Sometimes the outcome one wanted occurs. Rarely its worse than filling out
a ballot properly.

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Re: [FFmpeg-devel] [PATCH 07/10] fftools/cmdutils: Add protective () to FLAGS

[Michael Niedermayer]

[-- Attachment #1.1: Type: text/plain, Size: 634 bytes --]

On Sun, Apr 28, 2024 at 01:54:21AM +0200, Michael Niedermayer wrote:
> issue found while reviewing CID1452612 Free of array-typed value
> 
> Sponsored-by: Sovereign Tech Fund
> Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
> ---
>  fftools/cmdutils.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)

will apply

[...]
-- 
Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

Many that live deserve death. And some that die deserve life. Can you give
it to them? Then do not be too eager to deal out death in judgement. For
even the very wise cannot see all ends. -- Gandalf

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Re: [FFmpeg-devel] [PATCH 01/10] fftools/ffmpeg_enc: simplify opaque_ref check

[Michael Niedermayer]

[-- Attachment #1.1: Type: text/plain, Size: 628 bytes --]

On Sun, Apr 28, 2024 at 01:54:15AM +0200, Michael Niedermayer wrote:
> Found-while-revieweing: CID1520670 Dereference after null check
> 
> Sponsored-by: Sovereign Tech Fund
> Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
> ---
>  fftools/ffmpeg_enc.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)

will apply the remaining patches of this set

[...]
-- 
Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

Take away the freedom of one citizen and you will be jailed, take away
the freedom of all citizens and you will be congratulated by your peers
in Parliament.

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