[FFmpeg-cvslog] libavutil/opt: Small bugfix in example.

[Kacper Michajłow]

ffmpeg | branch: release/3.0 | Kacper Michajłow <kasper93 at gmail.com> | Sat Jul 23 21:43:06 2016 +0200| [6e6609f5dd61e2b195748b16d46964bd97d77c80] | committer: Michael Niedermayer

libavutil/opt: Small bugfix in example.

Fix const corectness and zero init the struct. This example code would actually crash when initializing string.

Signed-off-by: Michael Niedermayer <michael at niedermayer.cc>
(cherry picked from commit 69630f4d304a4e35d90957d6a170744af87cbf93)

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

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=6e6609f5dd61e2b195748b16d46964bd97d77c80
---

 libavutil/opt.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/libavutil/opt.h b/libavutil/opt.h
index 753434d..f6ab283 100644
--- a/libavutil/opt.h
+++ b/libavutil/opt.h
@@ -58,7 +58,7 @@
  * The following example illustrates an AVOptions-enabled struct:
  * @code
  * typedef struct test_struct {
- *     AVClass *class;
+ *     const AVClass *class;
  *     int      int_opt;
  *     char    *str_opt;
  *     uint8_t *bin_opt;
@@ -96,7 +96,7 @@
  * @code
  * test_struct *alloc_test_struct(void)
  * {
- *     test_struct *ret = av_malloc(sizeof(*ret));
+ *     test_struct *ret = av_mallocz(sizeof(*ret));
  *     ret->class = &test_class;
  *     av_opt_set_defaults(ret);
  *     return ret;