[libav-devel] libavcodec/ac3enc.c dynamic range codes

[Townson, Andrew E]

I can assume based on the below excerpts from ac3enc.c that the AC3 encoder 
defaults to None for the Dynamic Range Compression profile specified on page 10 
in Dolby's Metadata Guide:

659 /* assumptions:
 *   no dynamic range codes
 *   bit allocation parameters do not change between blocks
 *   no delta bit allocation
 *   no skipped data
 *   no auxiliary data
 *   no E-AC-3 metadata
 */

1402   /* dynamic range codes */
1403   put_bits(>pb, 1, 0);

If this is not the case could someone explain the above code?

Is there a way to apply specific DRC profiles per the Metadata guide?





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Re: [libav-devel] [PATCH] lavc/qsvenc: provide detail error message if parameters invalid

[Maxym Dmytrychenko]

The same :)

> 2 марта 2018 г., в 5:11, Luca Barbato  написал(а):
> 
>> On 02/03/2018 04:26, Zhong Li wrote:
>> Currently always shows "Selected ratecontrol mode is not supported by
>> the QSV runtime. Choose a different mode", but sometimes it is not
>> accurate.
>> Signed-off-by: Zhong Li 
>> ---
>>  libavcodec/qsvenc.c | 31 +--
>>  1 file changed, 25 insertions(+), 6 deletions(-)
> 
> 
> Looks good, thank you :)
> 
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Re: [libav-devel] [PATCH] lavc/qsvenc: provide detail error message if parameters invalid

[Luca Barbato]

On 02/03/2018 04:26, Zhong Li wrote:

Currently always shows "Selected ratecontrol mode is not supported by
the QSV runtime. Choose a different mode", but sometimes it is not
accurate.

Signed-off-by: Zhong Li 
---
  libavcodec/qsvenc.c | 31 +--
  1 file changed, 25 insertions(+), 6 deletions(-)



Looks good, thank you :)

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