[FFmpeg-devel] [PATCH] h264: rbsp de-escape and data partitioning..

Benoit Fouet benoit.fouet
Wed Jun 20 10:54:12 CEST 2007


Andreas ?man wrote:
> Hi
>
> Benoit Fouet wrote:
>   
>> Hi Andreas,
>>
>> Andreas ?man wrote:
>>     
>>> Index: libavcodec/h264.c
>>> ===================================================================
>>> --- libavcodec/h264.c	(revision 9371)
>>> +++ libavcodec/h264.c	(working copy)
>>> @@ -1392,6 +1392,7 @@
>>>  static uint8_t *decode_nal(H264Context *h, uint8_t *src, int *dst_length, int *consumed, int length){
>>>      int i, si, di;
>>>      uint8_t *dst;
>>> +    int bufidx;
>>>  
>>>  //    src[0]&0x80;                //forbidden bit
>>>      h->nal_ref_idc= src[0]>>5;
>>> @@ -1420,8 +1421,9 @@
>>>          return src;
>>>      }
>>>  
>>> -    h->rbsp_buffer= av_fast_realloc(h->rbsp_buffer, &h->rbsp_buffer_size, length);
>>> -    dst= h->rbsp_buffer;
>>> +    bufidx = h->nal_unit_type == NAL_DPC ? 1 : 0; // use second escape buffer for inter data
>>>   
>>>       
>> i think the "? 1 : 0" is not needed
>>     
>
> They are not indeed, but i tend to keep such things in for
> clarity
>
>   

ok

>> and could you provide a log message, please ?
>> or is "reuse the rbsp de-escape buffer if both the intra and inter -nal
>> units are escaped." ok ?
>>     
>
> No, it should be: "Do not reuse the rbsp de-escape buffer if
> both the intra and inter -nal units are escaped"
>   

applied with this log message, thanks

Ben
-- 
Purple Labs S.A.
www.purplelabs.com




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