[FFmpeg-cvslog] avcodec/avcodec: Add codec_tags array to AVCodec

[Michael Niedermayer]

ffmpeg | branch: master | Michael Niedermayer <michael at niedermayer.cc> | Sun Dec 29 21:22:05 2019 +0100| [550a6b4212ca98ccee2d633abaf408d42a3d6187] | committer: Michael Niedermayer

avcodec/avcodec: Add codec_tags array to AVCodec

This allows the fuzzer to target meaningfull codec tags instead
of hunting the 4gb space, which it seems to have problems with.

Suggested-by: James
Signed-off-by: Michael Niedermayer <michael at niedermayer.cc>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=550a6b4212ca98ccee2d633abaf408d42a3d6187
---

 libavcodec/avcodec.h  | 5 +++++
 libavcodec/internal.h | 6 ++++++
 2 files changed, 11 insertions(+)

diff --git a/libavcodec/avcodec.h b/libavcodec/avcodec.h
index 4b0e7c0853..774ed1e641 100644
--- a/libavcodec/avcodec.h
+++ b/libavcodec/avcodec.h
@@ -3644,6 +3644,11 @@ typedef struct AVCodec {
      * The user can only access this field via avcodec_get_hw_config().
      */
     const struct AVCodecHWConfigInternal **hw_configs;
+
+    /**
+     * List of supported codec_tags, terminated by FF_CODEC_TAGS_END.
+     */
+    const uint32_t *codec_tags;
 } AVCodec;
 
 #if FF_API_CODEC_GET_SET
diff --git a/libavcodec/internal.h b/libavcodec/internal.h
index 5930dd0da0..4188d1c46f 100644
--- a/libavcodec/internal.h
+++ b/libavcodec/internal.h
@@ -69,6 +69,12 @@
  */
 #define FF_CODEC_CAP_SLICE_THREAD_HAS_MF    (1 << 5)
 
+/**
+ * AVCodec.codec_tags termination value
+ */
+#define FF_CODEC_TAGS_END -1
+
+
 #ifdef TRACE
 #   define ff_tlog(ctx, ...) av_log(ctx, AV_LOG_TRACE, __VA_ARGS__)
 #else