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

Andreas Rheinhardt andreas.rheinhardt at gmail.com
Thu Apr 23 21:30:35 EEST 2020


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 at 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


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