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CCExtractor
[BUG] Captions fail to extract on HEVC video stream
CCExtractor version: 0.94
In raising this issue, I confirm the following:
- [x] I have read and understood the contributors guide.
- [x] I have checked that the bug-fix I am reporting can be replicated, or that the feature I am suggesting isn't already present.
- [x] I have checked that the issue I'm posting isn't already reported.
- [x] I have checked that the issue I'm porting isn't already solved and no duplicates exist in closed issues and in opened issues
- [x] I have checked the pull requests tab for existing solutions/implementations to my issue/suggestion.
- [x] I have used the latest available version of CCExtractor to verify this issue exists.
- [x] I have ticked all the boxes in this section and to prove it I'm deleting the section completely to remove boilerplate text.
Necessary information
- Is this a regression (i.e. did it work before)? NO
- What platform did you use? Windows
- What were the used arguments? No arguments
Video links
- https://drive.google.com/file/d/1vmt8yBWGohL45LCRTCZNChxEINDuSVY8/view?usp=sharing
Additional information
HEVC video files with EIA-608 captions fail to extract, however MPV and VLC display the captions.
Opening file: caption_test.ts
File seems to be a transport stream, enabling TS mode
Analyzing data in general mode
Done, processing time = 0 seconds
No captions were found in input.
Issues? Open a ticket here
MediaInfo
General
ID : 1 (0x1)
Complete name : caption_test.ts
Format : MPEG-TS
File size : 65.2 MiB
Duration : 4 min 59 s
Overall bit rate mode : Variable
Overall bit rate : 1 827 kb/s
Frame rate : 59.940 FPS
Law rating : C8+
Video
ID : 257 (0x101)
Menu ID : 1 (0x1)
Format : HEVC
Format/Info : High Efficiency Video Coding
Format profile : [email protected]@Main
Codec ID : 36
Duration : 4 min 59 s
Width : 1 280 pixels
Height : 720 pixels
Display aspect ratio : 16:9
Active Format Description : Letterbox 16:9 image
Frame rate : 59.940 (60000/1001) FPS
Color space : YUV
Chroma subsampling : 4:2:0 (Type 0)
Bit depth : 8 bits
Color range : Limited
Color primaries : BT.709
Transfer characteristics : BT.709
Matrix coefficients : BT.709
Audio #1
ID : 256 (0x100)
Menu ID : 1 (0x1)
Format : AAC LC
Format/Info : Advanced Audio Codec Low Complexity
Format version : Version 4
Muxing mode : ADTS
Codec ID : 15-2
Duration : 4 min 59 s
Bit rate mode : Variable
Channel(s) : 2 channels
Channel layout : L R
Sampling rate : 48.0 kHz
Frame rate : 46.875 FPS (1024 SPF)
Compression mode : Lossy
Delay relative to video : -820 ms
Language : English
Audio #2
ID : 258 (0x102)
Menu ID : 1 (0x1)
Format : AAC LC
Format/Info : Advanced Audio Codec Low Complexity
Format version : Version 4
Muxing mode : ADTS
Codec ID : 15-2
Duration : 4 min 59 s
Bit rate mode : Variable
Channel(s) : 2 channels
Channel layout : L R
Sampling rate : 48.0 kHz
Frame rate : 46.875 FPS (1024 SPF)
Compression mode : Lossy
Delay relative to video : -820 ms
Text #1
ID : 257 (0x101)-CC1
Menu ID : 1 (0x1)
Format : EIA-608
Muxing mode : SCTE 128 / DTVCC Transport
Muxing mode, more info : Muxed in Video #1
Duration : 4 min 59 s
Duration of the visible content : 4 min 54 s
Start time : 4 s 875 ms
End time : 4 min 59 s
Bit rate mode : Constant
Stream size : 0.00 Byte (0%)
Count of frames before first event : 161
Type of the first event : PopOn
Text #2
ID : 257 (0x101)-1
Menu ID : 1 (0x1)
Format : EIA-708
Muxing mode : SCTE 128 / DTVCC Transport
Muxing mode, more info : Muxed in Video #1
Duration : 4 min 59 s
Bit rate mode : Constant
Stream size : 0.00 Byte (0%)
Menu
ID : 4096 (0x1000)
Menu ID : 1 (0x1)
Format : AAC / HEVC / AAC
Duration : 4 min 59 s
List : 256 (0x100) (AAC, English) / 257 (0x101) (HEVC) / 258 (0x102) (AAC)
Language : English
Service name : Service01
Service provider : FFmpeg
Service type : digital television
Law rating : C8+
I tried to get the cc , on linux os , yes it does not recognize the cc in hevc format , but was able to extract by converting the hevc to h.264 using ffmpeg then extraction was successful , so the problem is in the extraction of hevc in cc extractor .
So is anyone working on it , or is this problem solved but not merged yet ?
Appreciate the help with this! MP4 and MKV files still are failing. MP4: https://drive.google.com/file/d/1w36ic-gbLAc6_fjMB5TDpBV8Pcs40bGC/view?usp=sharing MKV: https://drive.google.com/file/d/10X8R95TUnFzAZZkP_M2letRJzvz9OPSm/view?usp=sharing