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Médias (39)
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Stereo master soundtrack
17 octobre 2011, par
Mis à jour : Octobre 2011
Langue : English
Type : Audio
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ED-ME-5 1-DVD
11 octobre 2011, par
Mis à jour : Octobre 2011
Langue : English
Type : Audio
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1,000,000
27 septembre 2011, par
Mis à jour : Septembre 2011
Langue : English
Type : Audio
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Demon Seed
26 septembre 2011, par
Mis à jour : Septembre 2011
Langue : English
Type : Audio
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The Four of Us are Dying
26 septembre 2011, par
Mis à jour : Septembre 2011
Langue : English
Type : Audio
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Corona Radiata
26 septembre 2011, par
Mis à jour : Septembre 2011
Langue : English
Type : Audio
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Sur d’autres sites (4374)
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ffmpeg - HLS stream audio error between segmets
2 février 2019, par CarlI have a huge amount of mp4 files to create HLS segments from, more than 200 hours worth of files. I don’t see the point of re-encoding these videos because they are already in mp4 format. I’m using the following command which copies the video into segments instead of encoding it again.
ffmpeg -i filename.mp4 -codec: copy -start_number 0 -hls_time 4 -hls_list_size 0 -f hls filename.m3u8
The problem is when it comes to stitching these segments, I’m getting micro audio errors between segments. It’s hard to explain but imagine somebody turning audio off for 0.1 seconds. I doesn’t happen in all of the segments but in 20%-30% of them. Is there anything I can do stop these errors from popping up apart from reencoding all the videos. There are no problems with video btw.
Here’s media info from one of the files :
General
Complete name : C :\video_test\video_file.mp4
Format : MPEG-4
Format profile : Base Media / Version 2
Codec ID : mp42 (isom/iso2/avc1/mp41/mp42)
File size : 45.7 MiB
Duration : 7 min 34 s
Overall bit rate mode : Variable
Overall bit rate : 844 kb/s
Writing application : Lavf53.32.100Video
ID : 1
Format : AVC
Format/Info : Advanced Video Codec
Format profile : High@L4
Format settings, CABAC : Yes
Format settings, RefFrames : 8 frames
Codec ID : avc1
Codec ID/Info : Advanced Video Coding
Duration : 7 min 34 s
Bit rate : 767 kb/s
Width : 1 280 pixels
Height : 720 pixels
Display aspect ratio : 16:9
Frame rate mode : Constant
Frame rate : 30.000 FPS
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Bits/(Pixel*Frame) : 0.028
Stream size : 41.5 MiB (91%)
Writing library : x264 core 136
Encoding settings : cabac=1 / ref=8 / deblock=1:0:0 / analyse=0x3:0x113 / me=umh / subme=6 / psy=0 / mixed_ref=1 / me_range=16 / chroma_me=1 / trellis=0 / 8x8dct=1 / cqm=0 / deadzone=21,11 / fast_pskip=1 / chroma_qp_offset=0 / threads=48 / lookahead_threads=5 / sliced_threads=0 / nr=0 / decimate=1 / interlaced=0 / bluray_compat=0 / constrained_intra=0 / bframes=3 / b_pyramid=2 / b_adapt=1 / b_bias=0 / direct=1 / weightb=1 / open_gop=0 / weightp=0 / keyint=60 / keyint_min=30 / scenecut=0 / intra_refresh=0 / rc_lookahead=40 / rc=crf / mbtree=1 / crf=20.0 / qcomp=0.60 / qpmin=10 / qpmax=51 / qpstep=4 / ip_ratio=1.40 / aq=1:1.00Audio
ID : 2
Format : AAC
Format/Info : Advanced Audio Codec
Format profile : LC
Codec ID : 40
Duration : 7 min 34 s
Bit rate mode : Variable
Bit rate : 72.0 kb/s
Maximum bit rate : 96.0 kb/s
Channel(s) : 2 channels
Channel positions : Front : L R
Sampling rate : 44.1 kHz
Frame rate : 43.066 FPS (1024 SPF)
Compression mode : Lossy
Stream size : 3.92 MiB (9%)
Language : English
Default : Yes
Alternate group : 1Edit : I just tried copying video and reencoding the audio with the following command but problem still persists.
ffmpeg -i filename.mp4 -vcodec copy -c:a aac -ar 48000 -b:a 128k -start_number 0 -hls_time 4 -hls_list_size 0 -f hls filename.m3u8
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Can not download a streamable m3u8 link with IDM and ffmpeg
15 juillet 2021, par longThis is the link : https://v13.phephim.xyz/vod/v2/packaged:mp4/6005b3591918ee01c9ef67e4/playlist.m3u8


It's ok to play the link with play-hls-m3u8 chrome extension or by the site https://www.hlsplayer.net/ but I got errors when trying to download it by ffmpeg :


ffmpeg -i https://v13.phephim.xyz/vod/v2/packaged:mp4/6005b3591918ee01c9ef67e4/playlist.m3u8 -c copy OUTPUT.MP4



Full log :


ffmpeg version 4.2.4-1ubuntu0.1 Copyright (c) 2000-2020 the FFmpeg developers
 built with gcc 9 (Ubuntu 9.3.0-10ubuntu2)
 configuration: --prefix=/usr --extra-version=1ubuntu0.1 --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --arch=amd64 --enable-gpl --disable-stripping --enable-avresample --disable-filter=resample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libaom --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libcodec2 --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libjack --enable-libmp3lame --enable-libmysofa --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librsvg --enable-librubberband --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxml2 --enable-libxvid --enable-libzmq --enable-libzvbi --enable-lv2 --enable-omx --enable-openal --enable-opencl --enable-opengl --enable-sdl2 --enable-libdc1394 --enable-libdrm --enable-libiec61883 --enable-nvenc --enable-chromaprint --enable-frei0r --enable-libx264 --enable-shared
 libavutil 56. 31.100 / 56. 31.100
 libavcodec 58. 54.100 / 58. 54.100
 libavformat 58. 29.100 / 58. 29.100
 libavdevice 58. 8.100 / 58. 8.100
 libavfilter 7. 57.100 / 7. 57.100
 libavresample 4. 0. 0 / 4. 0. 0
 libswscale 5. 5.100 / 5. 5.100
 libswresample 3. 5.100 / 3. 5.100
 libpostproc 55. 5.100 / 55. 5.100
[hls @ 0x561c95a74c40] Skip ('#EXT-X-VERSION:3')
[hls @ 0x561c95a74c40] Opening 'https://v13.phephim.xyz/vod/v2/packaged:mp4/6005b3591918ee01c9ef67e4/0.ts?e=ad32a6dc7559f830a29b88ca30b975d90daef6578a563b09e97c798063c39de9fc124d470f75ad0220b9f440b7bd6767' for reading
[hls @ 0x561c95a74c40] Opening 'https://v13.phephim.xyz/vod/v2/packaged:mp4/6005b3591918ee01c9ef67e4/1.ts?e=e9b0a737f46906cdb4d67aed95e65ae4ab8eb401100eebce4e711ffdaf43c68fc2d8a49add4295587b38fe90c9d4cf86' for reading
[hls @ 0x561c95a74c40] Could not find codec parameters for stream 0 (Video: png, none(pc)): unspecified size
Consider increasing the value for the 'analyzeduration' and 'probesize' options
Input #0, hls, from 'https://v13.phephim.xyz/vod/v2/packaged:mp4/6005b3591918ee01c9ef67e4/playlist.m3u8':
 Duration: 01:02:06.42, bitrate: 0 kb/s
 Program 0 
 Metadata:
 variant_bitrate : 0
 Stream #0:0: Video: png, none(pc), 25 tbr, 25 tbn, 25 tbc
 Metadata:
 variant_bitrate : 0
Output #0, mp4, to 'OUTPUT.MP4':
Output file #0 does not contain any stream



I have tried to add some other command options but still got the same errors.


Doing devtools inspect, I found
the .ts segment link redirected to another link that has the response header :


content-disposition: inline;filename="unnamed.png"
content-type: image/png



Is it normal ?


Image : response header


Pls help me to download the video. Thanks !


p/s : sorry for my bad english :)


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Add SRT subtitle to video with ffmpeg [closed]
28 décembre 2024, par jAckOdEI use ffmpeg to encode, and add subtitle to a video by following command


$ ffmpeg -i hifi.avi -i hifi.srt -acodec libfaac -ar 48000 -ab 128k -ac 2 -vcodec libx264 -vpre ipod640 -s 480x240 -b 256k -scodec copy hifi.m4v -newsubtitle



Here is the output


ffmpeg version 0.8.git, Copyright (c) 2000-2011 the FFmpeg developers
 built on Aug 4 2011 11:11:39 with gcc 4.5.2
 configuration: --extra-cflags=-I/usr/local/include --extra-ldflags=-L/usr/local/lib --disable-shared --enable-static --enable-gpl --enable-postproc --enable-pthreads --enable-ffplay --disable-ffserver --enable-memalign-hack --enable-nonfree --enable-libfaac --arch=x86 --enable-swscale --enable-libx264 --enable-avfilter --enable-debug=3
 libavutil 51. 11. 1 / 51. 11. 1
 libavcodec 53. 9. 1 / 53. 9. 1
 libavformat 53. 6. 0 / 53. 6. 0
 libavdevice 53. 2. 0 / 53. 2. 0
 libavfilter 2. 27. 5 / 2. 27. 5
 libswscale 2. 0. 0 / 2. 0. 0
 libpostproc 51. 2. 0 / 51. 2. 0
Input #0, avi, from 'hifi.avi':
 Metadata:
 encoder : VirtualDubMod 1.5.4.1 (build 2178/release)
 IAS1 : English
 Duration: 01:49:02.20, start: 0.000000, bitrate: 897 kb/s
 Stream #0.0: Video: mpeg4 (Simple Profile), yuv420p, 544x304 [SAR 1:1 DAR 34:19], 25 tbr, 25 tbn, 25 tbc
 Stream #0.1: Audio: mp3, 48000 Hz, stereo, s16, 32 kb/s
[srt @ 0152c100] Estimating duration from bitrate, this may be inaccurate
Input #1, srt, from 'hifi.srt':
 Duration: N/A, start: 56.080000, bitrate: N/A
 Stream #1.0: Subtitle: srt
File 'hifi.m4v' already exists. Overwrite ? [y/N] y
[buffer @ 02548920] w:544 h:304 pixfmt:yuv420p tb:1/1000000 sar:1/1 sws_param:
[scale @ 02558ee0] w:544 h:304 fmt:yuv420p -> w:480 h:240 fmt:yuv420p flags:0x4
[libx264 @ 02547f20] Default settings detected, using medium profile
[libx264 @ 02547f20] using SAR=1/1
[libx264 @ 02547f20] using cpu capabilities: MMX2 SSE2Fast SSSE3 FastShuffle SSE4.1 Cache64
[libx264 @ 02547f20] profile High, level 3.0
[libx264 @ 02547f20] 264 - core 115 - H.264/MPEG-4 AVC codec - Copyleft 2003-2011 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=0 keyint=250 keyint_min=25 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=abr mbtree=1 bitrate=256 ratetol=1.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 vbv_maxrate=10000 vbv_bufsize=10000 nal_hrd=none ip_ratio=1.40 aq=1:1.00
Output #0, ipod, to 'hifi.m4v':
 Stream #0.0: Video: libx264, yuv420p, 480x240 [SAR 1:1 DAR 2:1], q=2-31, 256 kb/s, 90k tbn, 25 tbc
 Stream #0.1: Audio: libfaac, 48000 Hz, 2 channels, s16, 128 kb/s
 Stream #0.2: Subtitle: srt
 Stream #0.3: Subtitle: [0][0][0][0] / 0x0000, 64 kb/s
Stream mapping:
 Stream #0.0 -> #0.0
 Stream #0.1 -> #0.1
 Stream #1.0 -> #0.2
 Stream #1.0 -> #0.3
Encoder (codec id 0) not found for output stream #0.3



Can anyone tell what is wrong with my command ?