diff mbox series

[FFmpeg-devel] libavcodec/avpacket: Don't simply forward return value of av_dict_set()

Message ID 20200417140555.6181-1-andreas.rheinhardt@gmail.com
State Accepted
Commit 6b0c94780d8087772a718bfa8fdcb46b1770b987
Headers show
Series [FFmpeg-devel] libavcodec/avpacket: Don't simply forward return value of av_dict_set() | expand

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andriy/make success Make finished
andriy/make_fate success Make fate finished

Commit Message

Andreas Rheinhardt April 17, 2020, 2:05 p.m. UTC
The documentation of av_dict_set() states that values >= 0 indicate
success, whereas av_packet_unpack_dictionary() implies that return
values > 0 are impossible. So only forward the return value of
av_dict_set() in av_packet_unpack_dictionary() on error.

(Btw: av_dict_set() does currently not return values > 0.)

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
---
 libavcodec/avpacket.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

Comments

Andreas Rheinhardt April 21, 2020, 12:25 a.m. UTC | #1
Andreas Rheinhardt:
> The documentation of av_dict_set() states that values >= 0 indicate
> success, whereas av_packet_unpack_dictionary() implies that return
> values > 0 are impossible. So only forward the return value of
> av_dict_set() in av_packet_unpack_dictionary() on error.
> 
> (Btw: av_dict_set() does currently not return values > 0.)
> 
> Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
> ---
>  libavcodec/avpacket.c | 8 ++++----
>  1 file changed, 4 insertions(+), 4 deletions(-)
> 
> diff --git a/libavcodec/avpacket.c b/libavcodec/avpacket.c
> index ad020eef13..360722c365 100644
> --- a/libavcodec/avpacket.c
> +++ b/libavcodec/avpacket.c
> @@ -525,10 +525,10 @@ fail:
>  int av_packet_unpack_dictionary(const uint8_t *data, int size, AVDictionary **dict)
>  {
>      const uint8_t *end;
> -    int ret = 0;
> +    int ret;
>  
>      if (!dict || !data || !size)
> -        return ret;
> +        return 0;
>      end = data + size;
>      if (size && end[-1])
>          return AVERROR_INVALIDDATA;
> @@ -541,11 +541,11 @@ int av_packet_unpack_dictionary(const uint8_t *data, int size, AVDictionary **di
>  
>          ret = av_dict_set(dict, key, val, 0);
>          if (ret < 0)
> -            break;
> +            return ret;
>          data = val + strlen(val) + 1;
>      }
>  
> -    return ret;
> +    return 0;
>  }
>  
>  int av_packet_shrink_side_data(AVPacket *pkt, enum AVPacketSideDataType type,
> 
Will apply tomorrow if there are no objections.

- Andreas
Andreas Rheinhardt April 23, 2020, 6:30 p.m. UTC | #2
Andreas Rheinhardt:
> Andreas Rheinhardt:
>> The documentation of av_dict_set() states that values >= 0 indicate
>> success, whereas av_packet_unpack_dictionary() implies that return
>> values > 0 are impossible. So only forward the return value of
>> av_dict_set() in av_packet_unpack_dictionary() on error.
>>
>> (Btw: av_dict_set() does currently not return values > 0.)
>>
>> Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
>> ---
>>  libavcodec/avpacket.c | 8 ++++----
>>  1 file changed, 4 insertions(+), 4 deletions(-)
>>
>> diff --git a/libavcodec/avpacket.c b/libavcodec/avpacket.c
>> index ad020eef13..360722c365 100644
>> --- a/libavcodec/avpacket.c
>> +++ b/libavcodec/avpacket.c
>> @@ -525,10 +525,10 @@ fail:
>>  int av_packet_unpack_dictionary(const uint8_t *data, int size, AVDictionary **dict)
>>  {
>>      const uint8_t *end;
>> -    int ret = 0;
>> +    int ret;
>>  
>>      if (!dict || !data || !size)
>> -        return ret;
>> +        return 0;
>>      end = data + size;
>>      if (size && end[-1])
>>          return AVERROR_INVALIDDATA;
>> @@ -541,11 +541,11 @@ int av_packet_unpack_dictionary(const uint8_t *data, int size, AVDictionary **di
>>  
>>          ret = av_dict_set(dict, key, val, 0);
>>          if (ret < 0)
>> -            break;
>> +            return ret;
>>          data = val + strlen(val) + 1;
>>      }
>>  
>> -    return ret;
>> +    return 0;
>>  }
>>  
>>  int av_packet_shrink_side_data(AVPacket *pkt, enum AVPacketSideDataType type,
>>
> Will apply tomorrow if there are no objections.
> 
> - Andreas
> 
Applied.

- Andreas
diff mbox series

Patch

diff --git a/libavcodec/avpacket.c b/libavcodec/avpacket.c
index ad020eef13..360722c365 100644
--- a/libavcodec/avpacket.c
+++ b/libavcodec/avpacket.c
@@ -525,10 +525,10 @@  fail:
 int av_packet_unpack_dictionary(const uint8_t *data, int size, AVDictionary **dict)
 {
     const uint8_t *end;
-    int ret = 0;
+    int ret;
 
     if (!dict || !data || !size)
-        return ret;
+        return 0;
     end = data + size;
     if (size && end[-1])
         return AVERROR_INVALIDDATA;
@@ -541,11 +541,11 @@  int av_packet_unpack_dictionary(const uint8_t *data, int size, AVDictionary **di
 
         ret = av_dict_set(dict, key, val, 0);
         if (ret < 0)
-            break;
+            return ret;
         data = val + strlen(val) + 1;
     }
 
-    return ret;
+    return 0;
 }
 
 int av_packet_shrink_side_data(AVPacket *pkt, enum AVPacketSideDataType type,