[FFmpeg-devel] [PATCH] libavformat/mxfenc: Add some () to attempt to workaround build issue on osx

[James Almer]

On 5/23/2018 9:38 PM, Michael Niedermayer wrote:
> On Tue, May 22, 2018 at 06:13:47PM -0300, James Almer wrote:
>> On 5/22/2018 3:57 PM, Michael Niedermayer wrote:
>>> May fix ticket7209
>>>
>>> Signed-off-by: Michael Niedermayer <michael at niedermayer.cc>
>>> ---
>>>  libavformat/mxfenc.c | 12 ++++++------
>>>  1 file changed, 6 insertions(+), 6 deletions(-)
>>>
>>> diff --git a/libavformat/mxfenc.c b/libavformat/mxfenc.c
>>> index 44425bf6c9..77f60f5874 100644
>>> --- a/libavformat/mxfenc.c
>>> +++ b/libavformat/mxfenc.c
>>> @@ -1149,23 +1149,23 @@ static int get_trc(UID ul, enum AVColorTransferCharacteristic trc)
>>>      switch (trc){
>>>      case AVCOL_TRC_GAMMA28   :
>>>      case AVCOL_TRC_GAMMA22   :
>>> -        memcpy(ul, (UID){0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x01,0x01,0x01,0x01,0x00,0x00}, 16);
>>> +        memcpy(ul, ((UID){0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x01,0x01,0x01,0x01,0x00,0x00}), 16);
>>>          return 0;
>>>      case AVCOL_TRC_BT709     :
>>>      case AVCOL_TRC_SMPTE170M :
>>> -        memcpy(ul, (UID){0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x01,0x01,0x01,0x02,0x00,0x00}, 16);
>>> +        memcpy(ul, ((UID){0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x01,0x01,0x01,0x02,0x00,0x00}), 16);
>>>          return 0;
>>>      case AVCOL_TRC_SMPTE240M :
>>> -        memcpy(ul, (UID){0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x01,0x01,0x01,0x03,0x00,0x00}, 16);
>>> +        memcpy(ul, ((UID){0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x01,0x01,0x01,0x03,0x00,0x00}), 16);
>>>          return 0;
>>>      case AVCOL_TRC_BT1361_ECG:
>>> -        memcpy(ul, (UID){0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x06,0x04,0x01,0x01,0x01,0x01,0x05,0x00,0x00}, 16);
>>> +        memcpy(ul, ((UID){0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x06,0x04,0x01,0x01,0x01,0x01,0x05,0x00,0x00}), 16);
>>>          return 0;
>>>      case AVCOL_TRC_LINEAR    :
>>> -        memcpy(ul, (UID){0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x06,0x04,0x01,0x01,0x01,0x01,0x06,0x00,0x00}, 16);
>>> +        memcpy(ul, ((UID){0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x06,0x04,0x01,0x01,0x01,0x01,0x06,0x00,0x00}), 16);
>>>          return 0;
>>>      case AVCOL_TRC_SMPTE428  :
>>> -        memcpy(ul, (UID){0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x08,0x04,0x01,0x01,0x01,0x01,0x07,0x00,0x00}, 16);
>>> +        memcpy(ul, ((UID){0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x08,0x04,0x01,0x01,0x01,0x01,0x07,0x00,0x00}), 16);
>>>          return 0;
>>>      default:
>>>          return -1;
>>
>> Why not just declare these as static const like mxf_mpeg2_codec_uls or
>> the descriptor keys right above this function?
> 
> possible but it would seperate the values from the switch/case, making
> it harder to see what is stored by what.
> If people prefer i can change it to that ?
> I think its more readable as is / with the patch above though

It's fine as is with me. I think it looks odd when compared to other
functions writing UID constants, so it was a suggestion based on
consistency more than anything.