[FFmpeg-devel] [PATCH] cbs_av1: Fix test for presence of buffer_removal_time element

Mark Thompson sw at jkqxz.net
Sun Aug 23 20:45:10 EEST 2020


On 23/08/2020 18:31, James Almer wrote:
> On 8/23/2020 1:06 PM, Mark Thompson wrote:
>> The OBU must be in both the spatial and temporal layers for the
>> operating point, not just one of them.
>> ---
>>   libavcodec/cbs_av1_syntax_template.c | 2 +-
>>   1 file changed, 1 insertion(+), 1 deletion(-)
>>
>> diff --git a/libavcodec/cbs_av1_syntax_template.c
>> b/libavcodec/cbs_av1_syntax_template.c
>> index 2c976a9574..a281aba8ac 100644
>> --- a/libavcodec/cbs_av1_syntax_template.c
>> +++ b/libavcodec/cbs_av1_syntax_template.c
>> @@ -1390,7 +1390,7 @@ static int
>> FUNC(uncompressed_header)(CodedBitstreamContext *ctx, RWContext *rw,
>>                       int in_temporal_layer = (op_pt_idc >>
>> priv->temporal_id    ) & 1;
>>                       int in_spatial_layer  = (op_pt_idc >>
>> (priv->spatial_id + 8)) & 1;
>>                       if (seq->operating_point_idc[i] == 0 ||
>> -                        in_temporal_layer || in_spatial_layer) {
>> +                        (in_temporal_layer && in_spatial_layer)) {
>>                          
>> fbs(seq->decoder_model_info.buffer_removal_time_length_minus_1 + 1,
>>                               buffer_removal_time[i], 1, i);
>>                       }
> 
> LGTM, can confirm this fixes parsing https://0x0.st/zF2s.ivf

Thank you for the sample!  Applied.

- Mark


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