FFMPEG - Apple 720p30 चारों ओर MP4 H.264 AAC स्टीरियो; डॉल्बी डिजिटल
Dec 10 2020
मुझे FFmpeg cli सेटिंग्स पसंद हैं जो इस से मेल खाएँगी (यह एक हैंडब्रेक प्रीसेट है)

यहाँ प्रीसेटिंग फ़ाइल है, मुझे समझ में नहीं आया कि ये ffmpeg के लिए क्या होगा।
{
"AlignAVStart": false,
"AudioCopyMask": [
"copy:aac",
"copy:ac3",
"copy:dtshd",
"copy:dts",
"copy:mp3",
"copy:truehd",
"copy:flac",
"copy:eac3"
],
"AudioEncoderFallback": "ac3",
"AudioLanguageList": [],
"AudioList": [
{
"AudioBitrate": 160,
"AudioCompressionLevel": 0.0,
"AudioDitherMethod": null,
"AudioEncoder": "av_aac",
"AudioMixdown": "stereo",
"AudioNormalizeMixLevel": false,
"AudioSamplerate": "auto",
"AudioTrackQualityEnable": false,
"AudioTrackQuality": -1.0,
"AudioTrackGainSlider": 0.0,
"AudioTrackDRCSlider": 0.0
},
{
"AudioBitrate": 640,
"AudioCompressionLevel": 0.0,
"AudioDitherMethod": null,
"AudioEncoder": "copy:ac3",
"AudioMixdown": "none",
"AudioNormalizeMixLevel": false,
"AudioSamplerate": "auto",
"AudioTrackQualityEnable": false,
"AudioTrackQuality": -1.0,
"AudioTrackGainSlider": 0.0,
"AudioTrackDRCSlider": 0.0
}
],
"AudioSecondaryEncoderMode": true,
"AudioTrackSelectionBehavior": "first",
"ChapterMarkers": true,
"ChildrenArray": [],
"Default": false,
"FileFormat": "av_mp4",
"Folder": false,
"FolderOpen": false,
"Mp4HttpOptimize": false,
"Mp4iPodCompatible": false,
"PictureAutoCrop": true,
"PictureBottomCrop": 0,
"PictureLeftCrop": 0,
"PictureRightCrop": 0,
"PictureTopCrop": 0,
"PictureDARWidth": 0,
"PictureDeblockPreset": "off",
"PictureDeblockTune": "medium",
"PictureDeblockCustom": "strength=strong:thresh=20:blocksize=8",
"PictureDeinterlaceFilter": "decomb",
"PictureCombDetectPreset": "default",
"PictureCombDetectCustom": "",
"PictureDeinterlacePreset": "default",
"PictureDeinterlaceCustom": "",
"PictureDenoiseCustom": "",
"PictureDenoiseFilter": "off",
"PictureDenoisePreset": "light",
"PictureDenoiseTune": "none",
"PictureSharpenCustom": "",
"PictureSharpenFilter": "off",
"PictureSharpenPreset": "medium",
"PictureSharpenTune": "none",
"PictureDetelecine": "off",
"PictureDetelecineCustom": "",
"PictureItuPAR": false,
"PictureKeepRatio": true,
"PictureLooseCrop": false,
"PictureModulus": 2,
"PicturePAR": "auto",
"PicturePARWidth": 0,
"PicturePARHeight": 0,
"PictureRotate": null,
"PictureWidth": 1280,
"PictureHeight": 720,
"PictureForceHeight": 0,
"PictureForceWidth": 0,
"PresetDescription": "H.264 video (up to 720p30), AAC stereo audio, and Dolby Digital (AC-3) surround audio, in an MP4 container. Compatible with Apple iPhone 4, 4S, and later; iPod touch 4th, 5th Generation and later; iPad 1st Generation, iPad 2, and later; Apple TV 2nd Generation and later.",
"PresetName": "Apple 720p30 Surround",
"Type": 0,
"UsesPictureFilters": true,
"UsesPictureSettings": 1,
"SubtitleAddCC": false,
"SubtitleAddForeignAudioSearch": true,
"SubtitleAddForeignAudioSubtitle": false,
"SubtitleBurnBehavior": "foreign",
"SubtitleBurnBDSub": false,
"SubtitleBurnDVDSub": false,
"SubtitleLanguageList": [],
"SubtitleTrackSelectionBehavior": "none",
"VideoAvgBitrate": 3000,
"VideoColorMatrixCode": 0,
"VideoEncoder": "x264",
"VideoFramerate": "30",
"VideoFramerateMode": "pfr",
"VideoGrayScale": false,
"VideoScaler": "swscale",
"VideoPreset": "medium",
"VideoTune": "",
"VideoProfile": "high",
"VideoLevel": "3.1",
"VideoOptionExtra": "",
"VideoQualityType": 2,
"VideoQualitySlider": 21.0,
"VideoQSVDecode": false,
"VideoQSVAsyncDepth": 4,
"VideoTwoPass": true,
"VideoTurboTwoPass": false,
"x264Option": null,
"x264UseAdvancedOptions": false
},
जवाब
1 llogan Dec 11 2020 at 00:39
ffmpeg -i input.mp4 -c:v libx264 -crf 21 -preset medium -vf scale=-2:720 -r 30 -c:a aac -ac 2 output.mp4
विकल्प | यह क्या करता है |
---|---|
-c:v libx264 |
H.264 वीडियो आउटपुट के लिए वीडियो एनकोडर libx264 का चयन करता है |
-crf 21 |
गुणवत्ता चुनता है |
-preset medium |
X264 एन्कोडिंग प्रीसेट चुनता है |
-vf scale=-2:720 |
मैच के पहलू से वीडियो 720px उच्च, ऑटोस्केल चौड़ाई बनाने के लिए स्केल फ़िल्टर का उपयोग करता है |
-r 30 |
फ्रेम दर 30 एफपीएस पर सेट करता है |
-c:a aac |
AAC ऑडियो आउटपुट के लिए ऑडियो एनकोडर aac का चयन करता है |
-ac 2 |
आउटपुट स्टीरियो ऑडियो |
और जानकारी:
- FFmpeg Wiki: H.264
- एफएफएमपी विकी: एएसी