Hi, I need to download a video in its highest quality available. The Host has two 2 different format menifest.mpd and menefest.m3u8.
menifest.mpd
Code:format code extension resolution note 1 m4a audio only DASH audio 65k , m4a_dash container, mp4a.4 0.2 (44100Hz) 11 m4a audio only DASH audio 65k , m4a_dash container, mp4a.4 0.2 (44100Hz) 3 m4a audio only DASH audio 65k , m4a_dash container, mp4a.4 0.2 (44100Hz) 5 m4a audio only DASH audio 65k , m4a_dash container, mp4a.4 0.2 (44100Hz) 7 m4a audio only DASH audio 65k , m4a_dash container, mp4a.4 0.2 (44100Hz) 9 m4a audio only DASH audio 65k , m4a_dash container, mp4a.4 0.2 (44100Hz) 13 m4a audio only DASH audio 97k , m4a_dash container, mp4a.4 0.2 (44100Hz) 15 m4a audio only DASH audio 97k , m4a_dash container, mp4a.4 0.2 (44100Hz) 17 m4a audio only DASH audio 97k , m4a_dash container, mp4a.4 0.2 (44100Hz) 0 mp4 320x180 DASH video 149k , mp4_dash container, avc1.4 2c015, video only 2 mp4 480x270 DASH video 394k , mp4_dash container, avc1.4 2c015, video only 4 mp4 640x360 DASH video 588k , mp4_dash container, avc1.4 2c01e, video only 6 mp4 640x360 DASH video 836k , mp4_dash container, avc1.4 2c01e, video only 8 mp4 1024x576 DASH video 1157k , mp4_dash container, avc1.4 2c01f, video only 10 mp4 1024x576 DASH video 1753k , mp4_dash container, avc1.4 2c01f, video only 12 mp4 1280x720 DASH video 2090k , mp4_dash container, avc1.4 d401f, video only 14 mp4 1280x720 DASH video 2933k , mp4_dash container, avc1.4 d401f, video only 16 mp4 1920x1080 DASH video 3810k , mp4_dash container, avc1.4 d4028, video only (best)
menifest.m3u8
Now I have downloaded both videos and converted the into mp4.Code:format code extension resolution note audio-aacl-64-English-0 mp4 audio only [en] audio-aacl-64-English-1 mp4 audio only [en] audio-aacl-64-English-2 mp4 audio only [en] audio-aacl-64-English-3 mp4 audio only [en] audio-aacl-64-English-4 mp4 audio only [en] audio-aacl-64-English-5 mp4 audio only [en] audio-aacl-96-English-0 mp4 audio only [en] audio-aacl-96-English-1 mp4 audio only [en] audio-aacl-96-English-2 mp4 audio only [en] 244 mp4 320x180 244k , avc1.42C015, video only 276 mp4 320x180 276k , avc1.42C015, video only 495 mp4 480x270 495k , avc1.42C015, video only 527 mp4 480x270 527k , avc1.42C015, video only 692 mp4 640x360 692k , avc1.42C01E, video only 724 mp4 640x360 724k , avc1.42C01E, video only 946 mp4 640x360 946k , avc1.42C01E, video only 978 mp4 640x360 978k , avc1.42C01E, video only 1274 mp4 1024x576 1274k , avc1.42C01F, video only 1306 mp4 1024x576 1306k , avc1.42C01F, video only 1883 mp4 1024x576 1883k , avc1.42C01F, video only 1915 mp4 1024x576 1915k , avc1.42C01F, video only 2227 mp4 1280x720 2227k , avc1.4D401F, video only 2259 mp4 1280x720 2259k , avc1.4D401F, video only 3089 mp4 1280x720 3089k , avc1.4D401F, video only 3121 mp4 1280x720 3121k , avc1.4D401F, video only 3985 mp4 1920x1080 3985k , avc1.4D4028, video only 4017 mp4 1920x1080 4017k , avc1.4D4028, video only (best)
So now i didn't understand which is the best quality 1920x1080 4017k or 1920x1080 DASH video 3810kCode:Used mpd Format. After conversation to mp4 file size: 632 MB Used m3u8 Format. After conversation to mp4 file size: 543 MB
Please Help Me
Thanks
Edwin B
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Last edited by EdwinB; 8th Dec 2018 at 23:31. Reason: Updated
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Quality is not just about resolution, nor just about bitrate, etc., but a combination of detail and fidelity.
You don't know whether the settings for the one format are equivalent to the settings for the other, nor do you know whether they are even consistent WITHIN the formats.
If bitrate were correspondingly and accordingly increased along with the increase in resolution, then -all else being equal- the highest bitrated 1080p stream would be best. As it is, it could very well be that the highest 720p is best overall because the 1080s aren't that much higher in bitrate to accommodate the increase in rez, so they are a bit "bitrate starved", and so might exhibit increased artifacts compared to the highest 720p version.
Then you add in "conversion", and I'm not sure your process is simply remuxing - it could be recompressing. Which both worsens the quality and muddies the waters AFA determination.
So, from what you have given us, it is very hard to tell.
Scott -
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