[FFmpeg-trac] #8349(undetermined:open): Dolby AC-4 Support

[FFmpeg]

#8349: Dolby AC-4 Support
-------------------------------------+-------------------------------------
             Reporter:  Nomis101     |                    Owner:  (none)
                 Type:  enhancement  |                   Status:  open
             Priority:  wish         |                Component:
                                     |  undetermined
              Version:  git-master   |               Resolution:
             Keywords:               |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------
Comment (by kenmac999):

 Attached file as identified by mediainfo

 General
 ID                                       : 1 (0x1)
 Complete name                            : capture5003.ts
 Format                                   : MPEG-TS
 File size                                : 6.71 MiB
 Duration                                 : 33 s 250 ms
 Overall bit rate mode                    : Variable
 Overall bit rate                         : 1 641 kb/s

 Video
 ID                                       : 49 (0x31)
 Menu ID                                  : 3 (0x3)
 Format                                   : HEVC
 Format/Info                              : High Efficiency Video Coding
 Format profile                           : Main 10 at L4@Main
 Codec ID                                 : 36
 Duration                                 : 33 s 266 ms
 Width                                    : 1 280 pixels
 Height                                   : 720 pixels
 Display aspect ratio                     : 16:9
 Frame rate                               : 59.940 (60000/1001) FPS
 Standard                                 : Component
 Color space                              : YUV
 Chroma subsampling                       : 4:2:0 (Type 0)
 Bit depth                                : 10 bits
 Color range                              : Limited
 Color primaries                          : BT.709
 Transfer characteristics                 : BT.709
 Matrix coefficients                      : BT.709

 Audio #1
 ID                                       : 50 (0x32)
 Menu ID                                  : 3 (0x3)
 Format                                   : AC-4
 Format/Info                              : Audio Coding 4
 Commercial name                          : Dolby AC-4
 Format version                           : Version 2
 Codec ID                                 : 6
 Duration                                 : 33 s 99 ms
 Sampling rate                            : 48.0 kHz
 Frame rate                               : 29.970 FPS (1601.6 SPF)
 Compression mode                         : Lossy
 Delay relative to video                  : 259 ms
 Language                                 : Spanish
 I-Frame interval                         : 8 frames
 Number of presentations                  : 1
 NumberOfGroups                           : 1
 Number of substreams                     : 1
 Presentation #1                          : Mono Main
  Dialogue normalization                  : -24.00
  Loudness                                : Yes
   Integrated loudness (speech gated)     : -29.8 LKFS (Automated C or L+R)
   Integrated loudness (level gated)      : -23.8 LKFS
   Audio Loudness Standard                : Manual
   Realtime loudness corrected            : Yes
   Dialogue corrected                     : Yes (Automated C or L+R)
  Dynamic Range Control                   : Yes
  Group #s                                : 1
 Group #1                                 : Main
  Content classifier                      : Main
  Channel coded                           : Yes
  Number of substreams                    : 1
  Substream #s                            : 1
 Substream #1                             : Mono
  Channel mode                            : Mono
  Channel layout                          : C
  Dialogue enhancement                    : Yes
   Enabled                                : Yes
   Max gain                               : 9 dB
   Channel configuration                  : C

 Audio #2
 ID                                       : 51 (0x33)
 Menu ID                                  : 3 (0x3)
 Format                                   : AC-4
 Format/Info                              : Audio Coding 4
 Commercial name                          : Dolby AC-4
 Format version                           : Version 2
 Codec ID                                 : 6
 Duration                                 : 33 s 299 ms
 Sampling rate                            : 48.0 kHz
 Frame rate                               : 29.970 FPS (1601.6 SPF)
 Compression mode                         : Lossy
 Delay relative to video                  : 80 ms
 Language                                 : English
 I-Frame interval                         : 8 frames
 Number of presentations                  : 1
 NumberOfGroups                           : 1
 Number of substreams                     : 1
 Presentation #1                          : 5.1 Main
  Dialogue normalization                  : -24.00
  Loudness                                : Yes
   Integrated loudness (speech gated)     : -29.1 LKFS (Automated
 individual front channels)
   Integrated loudness (level gated)      : -22.8 LKFS
   Audio Loudness Standard                : Manual
   Realtime loudness corrected            : Yes
   Dialogue corrected                     : Yes (Automated individual front
 channels)
  Dynamic Range Control                   : Yes
  Downmix                                 : Yes
    LoRo center mix gain                   : -3.0 dB
   LoRo surround mix gain                 : -3.0 dB
   LtRt center mix gain                   : -3.0 dB
   LtRt surround mix gain                 : -3.0 dB
   LFE mix gain                           : -3 dB
  Group #s                                : 1
 Group #1                                 : Main
  Content classifier                      : Main
  Channel coded                           : Yes
  Number of substreams                    : 1
  Substream #s                            : 1
 Substream #1                             : 5.1
  Channel mode                            : 5.1
  Channel layout                          : L R C LFE Ls Rs
  Preprocessing                           : Yes
   Phase 90 filter info                   : Not applied
   Surround attenuation known             : No
   LFE attenuation known                  : No
  Dialogue enhancement                    : Yes
   Enabled                                : Yes
   Max gain                               : 9 dB
   Channel configuration                  : L R C

 Menu
 ID                                       : 48 (0x30)
 Menu ID                                  : 3 (0x3)
 Duration                                 : 33 s 250 ms
 List                                     : 49 (0x31) (HEVC) / 50 (0x32)
 (AC-4, Spanish) / 51 (0x33) (AC-4, English) / 57 (0x39) ()
 Language                                 :  / Spanish / English
-- 
Ticket URL: <https://trac.ffmpeg.org/ticket/8349#comment:55>
FFmpeg <https://ffmpeg.org>
FFmpeg issue tracker