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Rennes Emotion Map 2010-11
19 octobre 2011, par
Mis à jour : Juillet 2013
Langue : français
Type : Texte
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Sur d’autres sites (11895)
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HLS playback stopped with Player error : mediaError - bufferAppendError
23 janvier, par SumoanandI am trying to merge two videos together in the m3u8 manifest file.
However, exactly at the point to HLS stream discontinuity, video playback stops with following error :
Player error : mediaError - bufferAppendError


Here is the sample m3u8 snippet :


#EXT-X-PROGRAM-DATE-TIME:2025-01-23T01:23:10.200-06:00
#EXTINF:6.000
17.ts
#EXT-X-PROGRAM-DATE-TIME:2025-01-23T01:23:16.200-06:00
#EXTINF:6.000
18.ts
#EXT-X-DISCONTINUITY
#EXT-X-KEY:METHOD=NONE
#EXT-X-PROGRAM-DATE-TIME:2025-01-23T01:23:21.700-06:00
#EXTINF:6.000
10ak171685189367-007cb1c1a5398250e495vHD.20.ts
#EXT-X-PROGRAM-DATE-TIME:2025-01-23T01:23:27.700-06:00
#EXTINF:6.000
10ak171685189367-007cb1c1a5398250e495vHD.21.ts



FFprobe output of 18.ts :


Duration: 00:00:06.01, start: 1692.774667, bitrate: 3440 kb/s
 Program 1 
 Stream #0:0[0x100]: Video: h264 (High) ([27][0][0][0] / 0x001B), yuv420p(progressive), 1280x720 [SAR 1:1 DAR 16:9], 30 fps, 30 tbr, 90k tbn
 Stream #0:1[0x101]: Audio: aac (LC) ([15][0][0][0] / 0x000F), 48000 Hz, stereo, fltp, 159 kb/s



FFprobe output of 10ak171685189367-007cb1c1a5398250e495vHD.20.ts :


Duration: 00:00:06.02, start: 1.443444, bitrate: 744 kb/s
 Program 1 
 Metadata:
 Stream #0:0[0x100]: Video: h264 (High) ([27][0][0][0] / 0x001B), yuv420p(progressive), 1280x720 [SAR 1:1 DAR 16:9], 30 fps, 30 tbr, 90k tbn
 Stream #0:1[0x101](eng): Audio: aac (LC) ([15][0][0][0] / 0x000F), 44100 Hz, stereo, fltp, 65 kb/s



I would greatly appreciate any inputs.


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HlS playlist skip files with ffmpeg
29 janvier, par tamirgI simply downloaded 5 mp3 files from here :
https://samplelib.com/sample-mp3.html


which means i have :


sample-3s.mp3
sample-6s.mp3
sample-9s.mp3
sample-12s.mp3
sample-15s.mp3



and then i create a simple hls playlist sample.m3u8 :


#EXTM3U
#EXT-X-TARGETDURATION:20
#EXT-X-MEDIA-SEQUENCE:0
#EXTINF:3.0,
sample-3s.mp3
#EXTINF:6.0,
sample-6s.mp3
#EXTINF:9.0,
sample-9s.mp3
#EXTINF:12.0,
sample-12s.mp3
#EXTINF:15.0,
sample-15s.mp3



But when i play this playlist :


ffplay sample.m3u8



i get :


[hls @ 0x13703b4d0] Opening 'sample-9s.mp3' for reading
[mp3 @ 0x13703b740] invalid concatenated file detected - using bitrate for duration
Input #0, hls, from 'playlist2.m3u8':
 Duration: N/A, start: 0.000000, bitrate: 128 kb/s
 Program 0
 Metadata:
 variant_bitrate : 0
 Stream #0:0: Audio: mp3 (mp3float), 44100 Hz, stereo, fltp, 128 kb/s
 Metadata:
 variant_bitrate : 0
 encoder : Lavc57.10
2025-01-29 10:57:46.957 ffplay[17029:696588] +[IMKClient subclass]: chose IMKClient_Modern
2025-01-29 10:57:46.957 ffplay[17029:696588] +[IMKInputSession subclass]: chose IMKInputSession_Modern
[hls @ 0x13703b4d0] Opening 'sample-12s.mp3' for reading 0B
[mp3float @ 0x13703c710] Header missingvq= 0KB sq= 0B
[hls @ 0x13703b4d0] Opening 'sample-15s.mp3' for reading 0B



It starts playing from the file sample-9s, and not sample-3s. So it skips the first two files.
Why does it happen ?


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ffmpeg unable to get duration/bitrate of remote gif
17 février, par Peter XiaI'm trying to get the duration of a gif.


The command
ffmpeg -i https://cdn.7tv.app/emote/01F6MZGCNG000255K4X1K7NTHR/4x.gif


gives

Duration: N/A, start: 0.000000, bitrate: N/A


However if i download the file and pass it in

ffmpeg -i 4x.gif


it gives :

Duration: 00:00:07.92, start: 0.000000, bitrate: 1225 kb/s


The issue seems limited only to gifs on 7tv site.


- 

- It works for other sites. (example :
ffmpeg -i https://c.tenor.com/ULCY5B996-oAAAAd/tenor.gif
). - It also works for other encodings of that image (exmaple
ffmpeg -i https://cdn.7tv.app/emote/01F6MZGCNG000255K4X1K7NTHR/4x.avif
)






Here is the HTTP response header from 7tv site of that gif :


HTTP/2 200 
content-type: image/gif
content-length: 1213725
x-7tv-cache-hits: 37527
x-7tv-cache: hit
age: 228365
cache-control: public, max-age=604800, s-maxage=86400, immutable
alt-svc: h3=":443"; ma=2592000
x-7tv-cdn-pod: cdn-ssprq
x-7tv-cdn-node: cdn-1
server: SevenTV
vary: origin, access-control-request-method, access-control-request-headers
access-control-allow-origin: *
access-control-expose-headers: *
date: Sun, 16 Feb 2025 20:47:28 GMT



Can someone help me understand ? Something spcecific to this site is causing ffmpeg to behave differently ?


- It works for other sites. (example :