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Downloading it via youtube-dl for the highest quality version also results in a file that at first glance has many freezes in the video stream, when played in V

Downloading it via youtube-dl for the highest quality version also results in a file that at first glance has many freezes in the video stream, when played in VLC. But I think there's nothing wrong with the youtube stream. The freezes were in the downlink from SN15 to the ground. If you go to 9:37 in the video, you can see that the overlaid text timestamp in the spacex stream continues to increment (3:06, 3:07, 3:08, etc). It actually is a video that plays normally. Their ground based equipment that was adding the framing and T+ overlay was working normally and sending out a normal stream, it was just receiving frozen video on its input side. Meaning that they were feeding normally formatted video to youtube at that time. What i got from youtube-dl looks like the following: https://pastebin.com/1JvVY6s4 https://pastebin.com/1JvVY6s4

nine_k 6y ago
The one I've downloaded is a FullHD h264 stream. It freezes at 11:41, with VLC reporting a few lines of errors: [h264 @ 0x7f4d35907640] get_buffer() failed [h264 @ 0x7f4d35907640] thread_get_buffer() failed [h264 @ 0x7f4d35907640] decode_slice_header error [h264 @ 0x7f4d35907640] no frame! It of course freezes completely, with the overlaid clock and all. VLC version 3.0.13 Vetinari (3.0.12.1-158-g6977abc430), must be pretty fresh.
- walrus01 6y ago
  Not what I'm seeing here with a version of VLC that's slightly older than yours. At 11:41 in the video, the video feed from starship to ground does freeze, but video continues normally with the overlaid time clock counting seconds. VLC media player 3.0.12 Vetinari (revision 3.0.12-1-0-gd147bb5e7e) I used the default youtube-dl options which downloaded the video as VP9 codec (See above link to pastebin for ffmpeg's info for the file), not H264, so how it's handling a hiccup in the stream may be part of that. available formats show as follows format code extension resolution note 249 webm audio only tiny 51k , opus @ 50k (48000Hz), 5.20MiB 250 webm audio only tiny 66k , opus @ 70k (48000Hz), 5.98MiB 140 m4a audio only tiny 130k , m4a_dash container, mp4a.40.2@128k (44100Hz), 14.90MiB 251 webm audio only tiny 153k , opus @160k (48000Hz), 11.40MiB 278 webm 256x144 144p 73k , webm container, vp9, 30fps, video only, 3.60MiB 160 mp4 256x144 144p 78k , avc1.4d400c, 30fps, video only, 3.57MiB 242 webm 426x240 240p 98k , vp9, 30fps, video only, 4.31MiB 243 webm 640x360 360p 154k , vp9, 30fps, video only, 6.98MiB 133 mp4 426x240 240p 165k , avc1.4d4015, 30fps, video only, 7.32MiB 244 webm 854x480 480p 244k , vp9, 30fps, video only, 10.95MiB 134 mp4 640x360 360p 288k , avc1.4d401e, 30fps, video only, 13.78MiB 247 webm 1280x720 720p 465k , vp9, 30fps, video only, 23.04MiB 135 mp4 854x480 480p 545k , avc1.4d401f, 30fps, video only, 21.75MiB 248 webm 1920x1080 1080p 788k , vp9, 30fps, video only, 26.61MiB 136 mp4 1280x720 720p 1004k , avc1.64001f, 30fps, video only, 39.90MiB 137 mp4 1920x1080 1080p 1985k , avc1.640028, 30fps, video only, 79.93MiB 271 webm 2560x1440 1440p 3509k , vp9, 30fps, video only, 147.72MiB 313 webm 3840x2160 2160p 6214k , vp9, 30fps, video only, 342.33MiB 18 mp4 640x360 360p 210k , avc1.42001E, 30fps, mp4a.40.2@ 96k (44100Hz), 24.25MiB 22 mp4 1280x720 720p 475k , avc1.64001F, 30fps, mp4a.40.2@192k (44100Hz) (best)

nine_k 6y ago

The one I've downloaded is a FullHD h264 stream. It freezes at 11:41, with VLC reporting a few lines of errors: [h264 @ 0x7f4d35907640] get_buffer() failed [h264 @ 0x7f4d35907640] thread_get_buffer() failed [h264 @ 0x7f4d35907640] decode_slice_header error [h264 @ 0x7f4d35907640] no frame! It of course freezes completely, with the overlaid clock and all. VLC version 3.0.13 Vetinari (3.0.12.1-158-g6977abc430), must be pretty fresh.

walrus01 6y ago
Not what I'm seeing here with a version of VLC that's slightly older than yours. At 11:41 in the video, the video feed from starship to ground does freeze, but video continues normally with the overlaid time clock counting seconds. VLC media player 3.0.12 Vetinari (revision 3.0.12-1-0-gd147bb5e7e) I used the default youtube-dl options which downloaded the video as VP9 codec (See above link to pastebin for ffmpeg's info for the file), not H264, so how it's handling a hiccup in the stream may be part of that. available formats show as follows format code extension resolution note 249 webm audio only tiny 51k , opus @ 50k (48000Hz), 5.20MiB 250 webm audio only tiny 66k , opus @ 70k (48000Hz), 5.98MiB 140 m4a audio only tiny 130k , m4a_dash container, mp4a.40.2@128k (44100Hz), 14.90MiB 251 webm audio only tiny 153k , opus @160k (48000Hz), 11.40MiB 278 webm 256x144 144p 73k , webm container, vp9, 30fps, video only, 3.60MiB 160 mp4 256x144 144p 78k , avc1.4d400c, 30fps, video only, 3.57MiB 242 webm 426x240 240p 98k , vp9, 30fps, video only, 4.31MiB 243 webm 640x360 360p 154k , vp9, 30fps, video only, 6.98MiB 133 mp4 426x240 240p 165k , avc1.4d4015, 30fps, video only, 7.32MiB 244 webm 854x480 480p 244k , vp9, 30fps, video only, 10.95MiB 134 mp4 640x360 360p 288k , avc1.4d401e, 30fps, video only, 13.78MiB 247 webm 1280x720 720p 465k , vp9, 30fps, video only, 23.04MiB 135 mp4 854x480 480p 545k , avc1.4d401f, 30fps, video only, 21.75MiB 248 webm 1920x1080 1080p 788k , vp9, 30fps, video only, 26.61MiB 136 mp4 1280x720 720p 1004k , avc1.64001f, 30fps, video only, 39.90MiB 137 mp4 1920x1080 1080p 1985k , avc1.640028, 30fps, video only, 79.93MiB 271 webm 2560x1440 1440p 3509k , vp9, 30fps, video only, 147.72MiB 313 webm 3840x2160 2160p 6214k , vp9, 30fps, video only, 342.33MiB 18 mp4 640x360 360p 210k , avc1.42001E, 30fps, mp4a.40.2@ 96k (44100Hz), 24.25MiB 22 mp4 1280x720 720p 475k , avc1.64001F, 30fps, mp4a.40.2@192k (44100Hz) (best)