[FFmpeg-devel] [PATCH]lavc/hevcdec: Silence warnings when decoding DolbyVision

Carl Eugen Hoyos ceffmpeg at gmail.com
Mon Oct 23 11:09:19 EEST 2017


2017-10-23 5:22 GMT+02:00 James Almer <jamrial at gmail.com>:
> On 10/21/2017 9:31 PM, Carl Eugen Hoyos wrote:
>> Hi!
>>
>> Attached patch silences the many warnings shown when decoding streams
>> with DolbyVision content.
>>
>> Please comment, Carl Eugen
>>
>>
>> 0001-lavc-hevcdec-Silence-warnings-when-decoding-DolbyVis.patch
>>
>>
>> From d917eb3470b957fe17d8b708957567fdfa9dbdaa Mon Sep 17 00:00:00 2001
>> From: Carl Eugen Hoyos <ceffmpeg at gmail.com>
>> Date: Sun, 22 Oct 2017 02:17:27 +0200
>> Subject: [PATCH] lavc/hevcdec: Silence warnings when decoding DolbyVision.
>>
>> ---
>>  libavcodec/hevcdec.c |    2 ++
>>  1 file changed, 2 insertions(+)
>>
>> diff --git a/libavcodec/hevcdec.c b/libavcodec/hevcdec.c
>> index 2e4add2..d5ed9f5 100644
>> --- a/libavcodec/hevcdec.c
>> +++ b/libavcodec/hevcdec.c
>> @@ -2933,6 +2933,8 @@ static int decode_nal_unit(HEVCContext *s, const H2645NAL *nal)
>>          break;
>>      case HEVC_NAL_AUD:
>>      case HEVC_NAL_FD_NUT:
>> +    case 62: // unspecified, used by DolbyVision
>> +    case 63: // unspecified, used by DolbyVision
>
> No, the log message should be set to verbose level instead, like
> inff_hevc_decode_extradata(). It's something of little value for the
> info level and effectively just spams stderr when trying to decode files
> with unofficial or currently unsupported NAL units.

Don't we want users to upload such samples?

Carl Eugen


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