원본 영상이 top first인 인터레이스 영상인데 처음에 디인터레이스 필터를 적용하지 않고 인코딩하여 빗살무늬가 보이는 상태입니다.
그런데 지금 원본 영상이 소실되었고 잘못 인코딩된 영상만 있는 상태입니다... (아래 영상정보 남겨두었습니다.)
잘못 인코딩된 영상의 프레임레이트가 30000/1001이고, 다시 인코딩된 영상은 프레임레이트가 60000/1001이 되기를 원해서
다음과 같은 필터를 적용해서 인코딩하였지만 전부 실패했습니다. (물론 인코딩설정에서 프레임레이트를 60000/1001로 지정하였습니다.)
(1) 첫번째 시도
framerate=fps=60000/1001:interp_start=255:interp_end=255,
interlace,
bwdif=1:-1:0
빗살무늬가 사라지지 않았습니다.. (https://ffmpeg.org/ffmpeg-filters.html#toc-interlace 참조했습니다.)
(2) 두번째 시도
framerate=fps=60000/1001:interp_start=255:interp_end=255,
tinterlace=mode=3,
bwdif=1:-1:0
빗살무늬가 사라지지 않은 영상과 검은화면이 반복적으로 나옵니다.. (https://ffmpeg.org/ffmpeg-filters.html#toc-tinterlace 참조했습니다.)
아래 잘못인코딩된 영상정보에서 알 수 있듯 29970/1000도 시도해봤는데 안됬습니다..
아무리 찾아보고 공부해봐도 알 수 없어서 이렇게 질문글 올려봅니다..
1. 올바른 필터 적용방법을 알려주시면 감사하겠습니다...
2. Topaz video enhance AI도 갖고 있는데 혹시 이 프로그램으로 해결할 수 있는 방법이 있으면 알려주시면 감사하겠습니다...
3. 아래 원본영상 정보 보면 frame rate와 original frame rate가 다른데 둘이 어떤 차이가 있는지 궁금합니다.
4. 샤나인코더에서 쓸 수 있는 디인터레이스 필터중에 화질이 제일 좋은 필터가 뭔지 알고계신분 있나요..? yadif, bwdif 같은거요..
현재는 yadif보다는 bwdif가 좋다고 판단해서 bwdif를 쓰고 있고,
QTGMC가 제일 좋은건 알고 있지만 샤나인코더에서 쓸 수 있는것중에 가장 좋은 필터가 무엇인지 궁금해서 질문드립니다.
<잘못 인코딩된 영상의 mediainfo>
General
Complete name :
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Format profile : Base Media
Codec ID : isom (isom)
File size : 6.35 GiB
Duration : 1 h 58 min
Overall bit rate mode : Variable
Overall bit rate : 7 686 kb/s
Encoded date : UTC 2019-12-12 03:14:54
Tagged date : UTC 2019-12-12 03:14:54
Video
ID : 1
Format : AVC
Format/Info : Advanced Video Codec
Format profile : High@L4
Format settings : CABAC / 4 Ref Frames
Format settings, CABAC : Yes
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Minimum frame rate : 0.164 FPS
Maximum frame rate : 29.981 FPS
Original frame rate : 29.970 (30000/1001) FPS
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Bits/(Pixel*Frame) : 0.123
Stream size : 6.30 GiB (99%)
Source stream size : 6.30 GiB (99%)
Tagged date : UTC 2019-12-12 03:16:32
Menus : 3
Codec configuration box : avcC
Audio
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Format : AAC LC SBR
Format/Info : Advanced Audio Codec Low Complexity with Spectral Band Replication
Commercial name : HE-AAC
Format settings : Explicit
Codec ID : mp4a-40-2
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Source duration : 1 h 58 min
Bit rate mode : Variable
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Nominal bit rate : 61.7 kb/s
Maximum bit rate : 85.2 kb/s
Channel(s) : 2 channels
Channel layout : L R
Sampling rate : 48.0 kHz
Frame rate : 23.438 FPS (2048 SPF)
Compression mode : Lossy
Stream size : 49.3 MiB (1%)
Source stream size : 49.3 MiB (1%)
Default : Yes
Alternate group : 1
Tagged date : UTC 2019-12-12 03:16:32
Menus : 3
Menu
ID : 3
Codec ID : text
Duration : 1 h 52 min
Tagged date : UTC 2019-12-12 03:16:32
Bit rate mode : CBR
Menu For : 1,2
Source duration : 350016
Source_Duration_FirstFrame : 349974
Source frame count : 2
Source stream size : 28
Frame count : 324096
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Bit rate mode : Constant
자세한 정보
General
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Video_Format_WithHint_List : AVC
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Audio_Format_List : AAC LC SBR
Audio_Format_WithHint_List : AAC LC SBR
Audio codecs : AAC LC SBR
Menu_Format_List : Timed Text
Menu_Format_WithHint_List : Timed Text
Menu codecs : Timed Text
Complete name :
Folder name :
File name extension :
File name :
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Commercial name : MPEG-4
Format profile : Base Media
Internet media type : video/mp4
Codec ID : isom
Codec ID : isom (isom)
Codec ID/Url : http://www.apple.com/quicktime/download/standalone.html
CodecID_Compatible : isom
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Stream size : 3.00 MiB (0%)
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Tagged date : UTC 2019-12-12 03:14:54
File creation date : UTC 2022-07-12 19:04:42.677
File creation date (local) : 2022-07-13 04:04:42.677
File last modification date : UTC 2022-05-12 19:38:35.367
File last modification date (local) : 2022-05-13 04:38:35.367
Video
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Width : 1920
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Pixel aspect ratio : 1.000
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Rotation : 0.000
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Tagged date : UTC 2019-12-12 03:16:32
Menus : 3
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Audio
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Commercial name : HE-AAC
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Format settings, SBR : Yes (Explicit)
Format settings, PS : No (Explicit)
Format settings, PS : No (Explicit)
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