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avfilter/formats: proper error handling in ff_channel_layouts_ref() and ff_formats_ref()

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Also make sure the allocation and its check are properly done.
This commit is contained in:
Clément Bœsch 2015-03-14 21:21:49 +01:00
parent 93d9ce7cec
commit f861d9b2c6
2 changed files with 13 additions and 13 deletions
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20
libavfilter/formats.c
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@ -400,21 +400,21 @@ AVFilterChannelLayouts *ff_all_channel_counts(void)
return ret;
}
#define FORMATS_REF(f, ref) \
do { \
*ref = f; \
f->refs = av_realloc(f->refs, sizeof(*f->refs) * ++f->refcount); \
if (!f->refs) \
return; \
f->refs[f->refcount-1] = ref; \
} while (0)
#define FORMATS_REF(f, ref) \
void *tmp = av_realloc_array(f->refs, sizeof(*f->refs), f->refcount + 1); \
if (!tmp) \
return AVERROR(ENOMEM); \
f->refs = tmp; \
f->refs[f->refcount++] = ref; \
*ref = f; \
return 0
void ff_channel_layouts_ref(AVFilterChannelLayouts *f, AVFilterChannelLayouts **ref)
int ff_channel_layouts_ref(AVFilterChannelLayouts *f, AVFilterChannelLayouts **ref)
{
FORMATS_REF(f, ref);
}
void ff_formats_ref(AVFilterFormats *f, AVFilterFormats **ref)
int ff_formats_ref(AVFilterFormats *f, AVFilterFormats **ref)
{
FORMATS_REF(f, ref);
}

6
libavfilter/formats.h
View File

@ -159,8 +159,8 @@ int ff_add_channel_layout(AVFilterChannelLayouts **l, uint64_t channel_layout);
/**
* Add *ref as a new reference to f.
*/
void ff_channel_layouts_ref(AVFilterChannelLayouts *f,
AVFilterChannelLayouts **ref);
int ff_channel_layouts_ref(AVFilterChannelLayouts *f,
AVFilterChannelLayouts **ref);
/**
* Remove a reference to a channel layouts list.
@ -233,7 +233,7 @@ AVFilterFormats *ff_merge_formats(AVFilterFormats *a, AVFilterFormats *b,
* | |____| | | |____|
* |________| |________________________
*/
void ff_formats_ref(AVFilterFormats *formats, AVFilterFormats **ref);
int ff_formats_ref(AVFilterFormats *formats, AVFilterFormats **ref);
/**
* If *ref is non-NULL, remove *ref as a reference to the format list