.m3u8 file doesn't work, what am I doing wrong?

[giggioman00]

Hello, I have a .mp4 on a folder. I need to turn it to .m3u8 in multiple resolutions and streaming it online.

To do so, I used mmpeg. This command that I found online:

ffmpeg -y -i file.mp4 -preset slow -g 48 -sc_threshold 0 -map 0:0 -map 0:1 -map 0:0 -map 0:1 -map 0:0 -map 0:1 -map 0:0 -map 0:1 -map 0:0 -map 0:1 -map 0:0 -map 0:1 -s:v:0 1920*1080 -b:v:0 1800k -s:v:1 1280*720 -b:v:1 1200k -s:v:2 858*480 -b:v:2 750k -s:v:3 630*360 -b:v:3 550k -s:v:4 426*240 -b:v:4 400k -s:v:5 256*144 -b:v:5 200k -c:a copy -var_stream_map "v:0,a:0,name:1080p v:1,a:1,name:720p v:2,a:2,name:480p v:3,a:3,name:360p v:4,a:4,name:240p v:5,a:5,name:144p" -master_pl_name master.m3u8 -f hls -hls_time 10 -hls_playlist_type vod -hls_list_size 0 -hls_segment_filename "v%v/segment%d.ts" v%v/index.m3u8

and it generated me the .m3u8 file correctly and all the various .ts chunks of videos in the relative resolution folders.
I uploaded everywthing in the webserver but when I try to stream from the .m3u8 it simply doesn't start. I get generic errors. I tried multiple players, none worked. If I download the files in my computer though, I can stream them fine.
My doubts are mainly 2:
- is there any mistakes in the command I found online or is it fine? Does it has the right headers for online streaming?
- is it possible that some error happened during encoding? specifically, multiple times I get lines like this in the command line during the encoding

Opening 'v1080p/segment96.ts' for writing=N/A time=00:16:13.82 bitrate=N/A speed=0.566x

that writing=N/A and bitrate=N/A does it means that chunk it was skipped or something?

[october262]

Hello, I have a .mp4 on a folder. I need to turn it to .m3u8 in multiple resolutions and streaming it online.

To do so, I used mmpeg. This command that I found online:

ffmpeg -y -i file.mp4 -preset slow -g 48 -sc_threshold 0 -map 0:0 -map 0:1 -map 0:0 -map 0:1 -map 0:0 -map 0:1 -map 0:0 -map 0:1 -map 0:0 -map 0:1 -map 0:0 -map 0:1 -s:v:0 1920*1080 -b:v:0 1800k -s:v:1 1280*720 -b:v:1 1200k -s:v:2 858*480 -b:v:2 750k -s:v:3 630*360 -b:v:3 550k -s:v:4 426*240 -b:v:4 400k -s:v:5 256*144 -b:v:5 200k -c:a copy -var_stream_map "v:0,a:0,name:1080p v:1,a:1,name:720p v:2,a:2,name:480p v:3,a:3,name:360p v:4,a:4,name:240p v:5,a:5,name:144p" -master_pl_name master.m3u8 -f hls -hls_time 10 -hls_playlist_type vod -hls_list_size 0 -hls_segment_filename "v%v/segment%d.ts" v%v/index.m3u8

and it generated me the .m3u8 file correctly and all the various .ts chunks of videos in the relative resolution folders.
I uploaded everywthing in the webserver but when I try to stream from the .m3u8 it simply doesn't start. I get generic errors. I tried multiple players, none worked. If I download the files in my computer though, I can stream them fine.
My doubts are mainly 2:
- is there any mistakes in the command I found online or is it fine? Does it has the right headers for online streaming?
- is it possible that some error happened during encoding? specifically, multiple times I get lines like this in the command line during the encoding

Opening 'v1080p/segment96.ts' for writing=N/A time=00:16:13.82 bitrate=N/A speed=0.566x

that writing=N/A and bitrate=N/A does it means that chunk it was skipped or something?

try this here - https://stackoverflow.com/questions/46276162/mp4-to-dynamic-adaptive-hls-with-multiple...s-using-ffmpeg

[giggioman00]

Hello, I have a .mp4 on a folder. I need to turn it to .m3u8 in multiple resolutions and streaming it online.

To do so, I used mmpeg. This command that I found online:

ffmpeg -y -i file.mp4 -preset slow -g 48 -sc_threshold 0 -map 0:0 -map 0:1 -map 0:0 -map 0:1 -map 0:0 -map 0:1 -map 0:0 -map 0:1 -map 0:0 -map 0:1 -map 0:0 -map 0:1 -s:v:0 1920*1080 -b:v:0 1800k -s:v:1 1280*720 -b:v:1 1200k -s:v:2 858*480 -b:v:2 750k -s:v:3 630*360 -b:v:3 550k -s:v:4 426*240 -b:v:4 400k -s:v:5 256*144 -b:v:5 200k -c:a copy -var_stream_map "v:0,a:0,name:1080p v:1,a:1,name:720p v:2,a:2,name:480p v:3,a:3,name:360p v:4,a:4,name:240p v:5,a:5,name:144p" -master_pl_name master.m3u8 -f hls -hls_time 10 -hls_playlist_type vod -hls_list_size 0 -hls_segment_filename "v%v/segment%d.ts" v%v/index.m3u8

and it generated me the .m3u8 file correctly and all the various .ts chunks of videos in the relative resolution folders.
I uploaded everywthing in the webserver but when I try to stream from the .m3u8 it simply doesn't start. I get generic errors. I tried multiple players, none worked. If I download the files in my computer though, I can stream them fine.
My doubts are mainly 2:
- is there any mistakes in the command I found online or is it fine? Does it has the right headers for online streaming?
- is it possible that some error happened during encoding? specifically, multiple times I get lines like this in the command line during the encoding

Opening 'v1080p/segment96.ts' for writing=N/A time=00:16:13.82 bitrate=N/A speed=0.566x

that writing=N/A and bitrate=N/A does it means that chunk it was skipped or something?

try this here - https://stackoverflow.com/questions/46276162/mp4-to-dynamic-adaptive-hls-with-multiple...s-using-ffmpeg

Thanks. Actually I found it wasn't a problem of the encoding but it was a problem with CORS.
Now it works. But I was wondering, is there a way to replace the encoding script I published in my first message in order to use crf? Instead of bitrate?

[jagabo]

Remove all the "-b:v:0 1800k", "-b:v:1 1200k", etc. Then add "-crf 26" to the list of x264 arguments, eg, change "-preset slow -g 48 -sc_threshold 0" to "-preset slow -g 48 -sc_threshold 0 -crf 26". In practice this may not work well without VBV settings for each resolution.