The Ffmpeg command used to convert a video to HLS format can be also executed
via php's exec() function.
We can dump the log in a php variable using following syntax with flag '2>&1'
command:
exec('ffmpeg -y -i "D:/HlsEncryptionProject/encTestVideo.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 -s:v:0
1920*1080 -b:v:0 286k -s:v:1 1280*720 -b:v:1 2500k -s:v:2 630*360 -b:v:2 1000k
-c:a copy -var_stream_map "v:0,a:0,name:1080p v:1,a:1,name:720p
v:2,a:2,name:360p" -master_pl_name "MLSFS002.m3u8" -f hls -hls_time 30
-hls_key_info_file "D:/HlsEncryptionProject/content/videos/enc.keyinfo"
-hls_playlist_type vod -hls_list_size 0 -hls_segment_filename
"D:/HlsEncryptionProject/content/videos/vid_%v/MLSFS002%d.ts"
D:/HlsEncryptionProject/content/videos/MLSFS002/vid_%v/MLSFS002.m3u8 2>&1',
$output, $returnCode);
Output:
"ffmpeg version 2023-01-01-git-62da0b4a74-full_build-www.gyan.dev Copyright (c)
2000-2023 the FFmpeg developers",
" built with gcc 12.1.0 (Rev2, Built by MSYS2 project)",
" configuration: --enable-gpl --enable-version3 --enable-static
--disable-w32threads --disable-autodetect --enable-fontconfig --enable-iconv
--enable-gnutls --enable-libxml2 --enable-gmp --enable-bzlib --enable-lzma
--enable-libsnappy --enable-zlib --enable-librist --enable-libsrt
--enable-libssh --enable-libzmq --enable-avisynth --enable-libbluray
--enable-libcaca --enable-sdl2 --enable-libaribb24 --enable-libdav1d
--enable-libdavs2 --enable-libuavs3d --enable-libzvbi --enable-librav1e
--enable-libsvtav1 --enable-libwebp --enable-libx264 --enable-libx265
--enable-libxavs2 --enable-libxvid --enable-libaom --enable-libjxl
--enable-libopenjpeg --enable-libvpx --enable-mediafoundation --enable-libass
--enable-frei0r --enable-libfreetype --enable-libfribidi --enable-liblensfun
--enable-libvidstab --enable-libvmaf --enable-libzimg --enable-amf
--enable-cuda-llvm --enable-cuvid --enable-ffnvcodec --enable-nvdec
--enable-nvenc --enable-d3d11va --enable-dxva2 --enable-libvpl --enable-libs
haderc --enable-vulkan --enable-libplacebo --enable-opencl --enable-libcdio
--enable-libgme --enable-libmodplug --enable-libopenmpt
--enable-libopencore-amrwb --enable-libmp3lame --enable-libshine
--enable-libtheora --enable-libtwolame --enable-libvo-amrwbenc --enable-libilbc
--enable-libgsm --enable-libopencore-amrnb --enable-libopus --enable-libspeex
--enable-libvorbis --enable-ladspa --enable-libbs2b --enable-libflite
--enable-libmysofa --enable-librubberband --enable-libsoxr
--enable-chromaprint",
" libavutil 57. 43.100 / 57. 43.100",
" libavcodec 59. 55.103 / 59. 55.103",
" libavformat 59. 34.102 / 59. 34.102",
" libavdevice 59. 8.101 / 59. 8.101",
" libavfilter 8. 53.100 / 8. 53.100",
" libswscale 6. 8.112 / 6. 8.112",
" libswresample 4. 9.100 / 4. 9.100",
" libpostproc 56. 7.100 / 56. 7.100",
"Input #0, mov,mp4,m4a,3gp,3g2,mj2, from
'D:/HlsEncryptionProject/encTestVideo.mp4':",
" Metadata:",
" major_brand : isom",
" minor_version : 512",
" compatible_brands: isomiso2avc1mp41",
" encoder : Lavf55.33.100",
" Duration: 00:01:00.40, start: 0.000000, bitrate: 624 kb/s",
" Stream #0:0[0x1](eng): Video: h264 (High) (avc1 / 0x31637661),
yuv420p(progressive), 630x332, 621 kb/s, 25 fps, 25 tbr, 12800 tbn (default)",
" Metadata:",
" handler_name : VideoHandler",
" vendor_id : [0][0][0][0]",
"Stream map '0:1' matches no streams.",
"To ignore this, add a trailing '?' to the map."
But when we try to generate error output (for example, via inputting a corrupt
video url or by omitting a part of ffmpeg command) via these flags, then Ffmpeg
is generating the same type of error mentioned above.
So the issue is every time when we want to log the error in case the tool fails
to convert the video into HLS format,
Ffmpeg just generates same error. Are there some ways by which we can improve
the logging system of ffmpeg
for error/warning logs? the command above is fixed and we want to find some
verdict like what exactly happened
while executing the same command (w/ different values/dynamic values in command)
Also ffmpeg is not taking a localhost url for a video resource as the input in
the command below when run via
php Apache xampp configuration in php:
'ffmpeg -y -i "http://localhost/HlsEncryptionProject/encTestVideo.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 -s:v:0 1920*1080 -b:v:0 286k -s:v:1 1280*720 -b:v:1 2500k -s:v:2 630*360
-b:v:2 1000k -c:a copy -var_stream_map "v:0,a:0,name:1080p v:1,a:1,name:720p
v:2,a:2,name:360p" -master_pl_name "MLSFS002.m3u8" -f hls -hls_time 30
-hls_key_info_file
"D:/HlsEncryptionProject/content/videos/MLSFS002/enc.keyinfo"
-hls_playlist_type vod -hls_list_size 0 -hls_segment_filename
"D:/HlsEncryptionProject/content/videos/MLSFS002/vid_%v/MLSFS002%d.ts"
D:/HlsEncryptionProject/content/videos/MLSFS002/vid_%v/MLSFS002.m3u8'
Pls help resolve these queries!!
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