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FFMPEG : How to manually select video quality from mpd manifest ?
18 juin 2022, par DeoxysI want to ask what command should I use to select video quality from mpd manifest ?



mpd manifest link



https://anevia115(dot)mncnow(dot)id/vod/eds/kiko-season1-eps1-mobil-kabur-anv6/_/sa_dash_vmx/kiko-season1-eps1-mobil-kabur-anv6.mpd



Here, the mpd file :



<?xml version="1.0" encoding="utf-8"?>
<mpd xmlns="urn:mpeg:dash:schema:mpd:2011" profiles="urn:mpeg:dash:profile:isoff-live:2011" type="static" mediapresentationduration="PT7M59.240000S" minbuffertime="PT0S" maxsegmentduration="PT4S">
 <period duration="PT7M59.240000S">
 <adaptationset group="1" mimetype="audio/mp4" lang="en" contenttype="audio" minbandwidth="32000" maxbandwidth="64000">
<contentprotection schemeiduri="urn:uuid:edef8ba9-79d6-4ace-a3c8-27dcd51d21ed"></contentprotection><contentprotection schemeiduri="urn:mpeg:dash:mp4protection:2011" value="cenc"></contentprotection> <role schemeiduri="urn:mpeg:dash:role:2011" value="main"></role>
 <representation bandwidth="32000" audiosamplingrate="22050" codecs="mp4a.40.2">
 <audiochannelconfiguration schemeiduri="urn:mpeg:dash:23003:3:audio_channel_configuration:2011" value="2"></audiochannelconfiguration>
 <segmenttemplate timescale="10000000" initialization="kiko-season1-eps1-mobil-kabur-anv6-$RepresentationID$-init.mp4" media="kiko-season1-eps1-mobil-kabur-anv6-$RepresentationID$-$Time$.mp4">
 <segmenttimeline>
 <s t="0" d="36223129" r="1"></s>
 <s d="35758730"></s>
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 </segmenttimeline>
 </segmenttemplate>
 </representation>
 <representation bandwidth="64000" audiosamplingrate="22050" codecs="mp4a.40.2">
 <audiochannelconfiguration schemeiduri="urn:mpeg:dash:23003:3:audio_channel_configuration:2011" value="2"></audiochannelconfiguration>
 <segmenttemplate timescale="10000000" initialization="kiko-season1-eps1-mobil-kabur-anv6-$RepresentationID$-init.mp4" media="kiko-season1-eps1-mobil-kabur-anv6-$RepresentationID$-$Time$.mp4">
 <segmenttimeline>
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 </segmenttimeline>
 </segmenttemplate>
 </representation>
 </adaptationset>
 <adaptationset group="2" framerate="25" mimetype="video/mp4" startwithsap="1" contenttype="video" par="16:9" minbandwidth="150119" maxbandwidth="5002530" minwidth="256" maxwidth="1920" minheight="144" maxheight="1080">
<contentprotection schemeiduri="urn:uuid:edef8ba9-79d6-4ace-a3c8-27dcd51d21ed"></contentprotection><contentprotection schemeiduri="urn:mpeg:dash:mp4protection:2011" value="cenc"></contentprotection> <role schemeiduri="urn:mpeg:dash:role:2011" value="main"></role>
 <segmenttemplate timescale="10000000" initialization="kiko-season1-eps1-mobil-kabur-anv6-$RepresentationID$-init.mp4" media="kiko-season1-eps1-mobil-kabur-anv6-$RepresentationID$-$Time$.mp4">
 <segmenttimeline>
 <s t="0" d="36000000" r="132"></s>
 <s d="4400000"></s>
 </segmenttimeline>
 </segmenttemplate>
 <representation bandwidth="150119" width="256" height="144" codecs="avc1.4d400c"></representation>
 <representation bandwidth="500565" width="640" height="360" codecs="avc1.4d401e"></representation>
 <representation bandwidth="1001193" width="854" height="480" codecs="avc1.4d401e"></representation>
 <representation bandwidth="2502286" width="1280" height="720" codecs="avc1.4d401f"></representation>
 <representation bandwidth="5002530" width="1920" height="1080" codecs="avc1.4d4028"></representation>
 </adaptationset>
 </period>
</mpd>



The video is not encrypted with DRM. When I tried to download with FFmpeg, success, but FFmpeg automatically select the worst quality (144p).



FFmpeg command I use :



ffmpeg -i https://anevia115(dot)mncnow(dot)id/vod/eds/kiko-season1-eps1-mobil-kabur-anv6/_/sa_dash_vmx/kiko-season1-eps1-mobil-kabur-anv6.mpd -c copy kiko1.mp4



Result from ffmpeg



ffmpeg version 3.4.6-0ubuntu0.18.04.1 Copyright (c) 2000-2019 the FFmpeg developers
 built with gcc 7 (Ubuntu 7.3.0-16ubuntu3)
 configuration: --prefix=/usr --extra-version=0ubuntu0.18.04.1 --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --enable-gpl --disable-stripping --enable-avresample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libmp3lame --enable-libmysofa --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librubberband --enable-librsvg --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxml2 --enable-libxvid --enable-libzmq --enable-libzvbi --enable-omx --enable-openal --enable-opengl --enable-sdl2 --enable-libdc1394 --enable-libdrm --enable-libiec61883 --enable-chromaprint --enable-frei0r --enable-libopencv --enable-libx264 --enable-shared
 libavutil 55. 78.100 / 55. 78.100
 libavcodec 57.107.100 / 57.107.100
 libavformat 57. 83.100 / 57. 83.100
 libavdevice 57. 10.100 / 57. 10.100
 libavfilter 6.107.100 / 6.107.100
 libavresample 3. 7. 0 / 3. 7. 0
 libswscale 4. 8.100 / 4. 8.100
 libswresample 2. 9.100 / 2. 9.100
 libpostproc 54. 7.100 / 54. 7.100
[dash @ 0x562ae2e98000] Opening '[URL]https://anevia115(dot)mncnow(dot)id/vod/eds/kiko-season1-eps1-mobil-kabur-anv6/_/sa_dash_vmx/kiko-season1-eps1-mobil-kabur-anv6-avc1_150119=5-init.mp4[/URL]' for reading [dash @ 0x562ae2e98000] Could not read complete fragment.
[dash @ 0x562ae2e98000] Opening '[URL]https://anevia115(dot)mncnow(dot)id/vod/eds/kiko-season1-eps1-mobil-kabur-anv6/_/sa_dash_vmx/kiko-season1-eps1-mobil-kabur-anv6-avc1_150119=5-0.mp4[/URL]' for reading
[dash @ 0x562ae2e98000] Opening '[URL]https://anevia115(dot)mncnow(dot)id/vod/eds/kiko-season1-eps1-mobil-kabur-anv6/_/sa_dash_vmx/kiko-season1-eps1-mobil-kabur-anv6-mp4a_32000_eng=6-init.mp4[/URL]' for reading [dash @ 0x562ae2e98000] Could not read complete fragment.
[dash @ 0x562ae2e98000] Opening '[URL]https://anevia115(dot)mncnow(dot)id/vod/eds/kiko-season1-eps1-mobil-kabur-anv6/_/sa_dash_vmx/kiko-season1-eps1-mobil-kabur-anv6-mp4a_32000_eng=6-0.mp4[/URL]' for reading
[aac @ 0x562ae32ced00] channel element 2.3 is not allocated
[h264 @ 0x562ae32cc500] top block unavailable for requested intra mode -1
[h264 @ 0x562ae32cc500] error while decoding MB 0 0, bytestream 38
[h264 @ 0x562ae32cc500] concealing 144 DC, 144 AC, 144 MV errors in I frame
Input #0, dash, from '[URL]https://anevia115(dot)mncnow(dot)id/vod/eds/kiko-season1-eps1-mobil-kabur-anv6/_/sa_dash_vmx/kiko-season1-eps1-mobil-kabur-anv6.mpd[/URL]':
 Duration: 00:07:59.00, start: 0.000000, bitrate: 0 kb/s 
Program 0
 Stream #0:0: Video: h264 (Main) (avc1 / 0x31637661), yuv420p(tv, bt709), 256x144 [SAR 1:1 DAR 16:9], 153 kb/s, 25 fps, 25 tbr, 10000k tbn, 50 tbc 
 Stream #0:1: Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 32 kb/s
Output #0, mp4, to 'kiko1.mp4': 
 Metadata: 
 encoder : Lavf57.83.100 
 Stream #0:0: Video: h264 (Main) (avc1 / 0x31637661), yuv420p(tv, bt709), 256x144 [SAR 1:1 DAR 16:9], q=2-31, 153 kb/s, 25 fps, 25 tbr, 10000k tbn, 10000k tbc
Stream mapping: 
 Stream #0:0 -> #0:0 (copy)
Press [q] to stop, [?] for help
[dash @ 0x562ae2e98000] Opening '[URL]https://anevia115(dot)mncnow(dot)id/vod/eds/kiko-season1-eps1-mobil-kabur-anv6/_/sa_dash_vmx/kiko-season1-eps1-mobil-kabur-anv6-mp4a_32000_eng=6-36223129.mp4[/URL]' for reading
[dash @ 0x562ae2e98000] Opening '[URL]https://anevia115(dot)mncnow(dot)id/vod/eds/kiko-season1-eps1-mobil-kabur-anv6/_/sa_dash_vmx/kiko-season1-eps1-mobil-kabur-anv6-avc1_150119=5-36000000.mp4[/URL]' for reading
....
....
frame=11978 fps= 99 q=-1.0 Lsize= 8891kB time=00:07:59.08 bitrate= 152.0kbits/s speed=3.97x
video:8779kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 1.269990%



Tried youtube-dl & streamlink but failed.
So, I use FFmpeg because it success to download the video and audio. I have read FFmpeg documentation but I have no idea what command should I use.
What command should I use to select another quality ? (ex : audio 64 kbps, video : 720p)





Note : just change (dot) to
.



-
ffmpeg compile for visual studio 2012
3 octobre 2020, par user2290878Was trying to compile ffmpeg using vs2012 , its saying unsupported ms version used 2013 or above .


also tried compiling with mingw , got the shared libraries , but unable to link with vs 2012 project giving unresolved symbols error .


error LNK2019 : unresolved external symbol _avcodec_get_class referenced in function _wmain
 : error LNK2019 : unresolved external symbol _avcodec_find_encoder_by_name referenced in function _wmain


not sure how to proceed . could nay help on this pls .


tried the way specified in the link https://trac.ffmpeg.org/wiki/CompilationGuide/MSVC but could not make it .


-
Decrypting fragmented mpeg-dash using ffmpeg
6 octobre 2022, par Sayem Prodhan AnantaI have an mpeg-dash which I want to decrypt. I have the CENC decryption key. But I am unable to get it working. The dash uses segment template. Here is the dash


<?xml version="1.0" ?>
<mpd mediapresentationduration="PT1H55M53.987S" minbuffertime="PT6.00S" profiles="urn:mpeg:dash:profile:isoff-live:2011" type="static" xmlns="urn:mpeg:dash:schema:mpd:2011">
 
 <period>
 
 <adaptationset maxheight="720" maxwidth="1280" mimetype="video/mp4" segmentalignment="true" startwithsap="1">
 <accessibility schemeiduri="urn:scte:dash:cc:cea-608:2015" value="eng"></accessibility>
 <viewpoint schemeiduri="urn:mpeg:dash:role:2011" value="vp2"></viewpoint>
 
 <contentprotection schemeiduri="urn:mpeg:dash:mp4protection:2011" value="cenc"></contentprotection>
 
 <contentprotection schemeiduri="urn:uuid:9a04f079-9840-4286-ab92-e65be0885f95">
 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
 </contentprotection>
 
 <contentprotection schemeiduri="urn:uuid:edef8ba9-79d6-4ace-a3c8-27dcd51d21ed">
 AAAAQ3Bzc2gAAAAA7e+LqXnWSs6jyCfc1R0h7QAAACMIARIQPLcV8k6syyGkWVxKZx27ChoKaW50ZXJ0cnVzdCIBKg==
 </contentprotection>
 <segmenttemplate duration="6000" initialization="$RepresentationID$/init.mp4" media="$RepresentationID$/seg-$Number$.m4s" startnumber="1" timescale="1000"></segmenttemplate>
 <representation bandwidth="634478" codecs="avc1.4D401F" framerate="2997/100" height="288" scantype="progressive" width="512"></representation>
 <representation bandwidth="789637" codecs="avc1.4D401F" framerate="2997/100" height="360" scantype="progressive" width="640"></representation>
 <representation bandwidth="1562569" codecs="avc1.4D401F" framerate="2997/100" height="432" scantype="progressive" width="768"></representation>
 <representation bandwidth="2124583" codecs="avc1.4D401F" framerate="2997/100" height="720" scantype="progressive" width="1280"></representation>
 </adaptationset>
 
 <adaptationset lang="en" mimetype="audio/mp4" segmentalignment="true" startwithsap="1">
 
 <contentprotection schemeiduri="urn:mpeg:dash:mp4protection:2011" value="cenc"></contentprotection>
 
 <contentprotection schemeiduri="urn:uuid:9a04f079-9840-4286-ab92-e65be0885f95">
 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
 </contentprotection>
 
 <contentprotection schemeiduri="urn:uuid:edef8ba9-79d6-4ace-a3c8-27dcd51d21ed">
 AAAAQ3Bzc2gAAAAA7e+LqXnWSs6jyCfc1R0h7QAAACMIARIQPLcV8k6syyGkWVxKZx27ChoKaW50ZXJ0cnVzdCIBKg==
 </contentprotection>
 <segmenttemplate duration="6000" initialization="$RepresentationID$/init.mp4" media="$RepresentationID$/seg-$Number$.m4s" startnumber="1" timescale="1000"></segmenttemplate>
 <representation audiosamplingrate="48000" bandwidth="136225" codecs="mp4a.40.2">
 <audiochannelconfiguration schemeiduri="urn:mpeg:dash:23003:3:audio_channel_configuration:2011" value="2"></audiochannelconfiguration>
 </representation>
 </adaptationset>
 </period>
</mpd>


I have produced an mp4 file by combining all the segments like this


init.mp4+seg-1.m4s+seg-2.m4s+....+seg-1159.m4s


But I end up with following error


ffmpeg version N-99631-g9018257751-anan5a-2020-10-19 Copyright (c) 2000-2020 the FFmpeg developers
 built with gcc 8 (Debian 8.3.0-6)
 configuration: --extra-version=anan5a-2020-10-19 --enable-gpl --enable-version3 --disable-shared --enable-static --enable-small --enable-avisynth --enable-chromaprint --enable-frei0r --enable-gmp --enable-gnutls --enable-ladspa --enable-libaom --enable-libass --enable-libcaca --enable-libcdio --enable-libcodec2 --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libjack --enable-libmodplug --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librsvg --enable-librubberband --enable-librtmp --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtesseract --enable-libtheora --enable-libtwolame --enable-libv4l2 --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxvid --enable-libxml2 --enable-libzmq --enable-libzvbi --enable-lv2 --enable-openal --enable-opencl --enable-opengl --enable-libdrm --enable-nonfree --enable-libfdk-aac --enable-libbluray --enable-libzimg --enable-libsvtav1
 libavutil 56. 60.100 / 56. 60.100
 libavcodec 58.111.101 / 58.111.101
 libavformat 58. 62.100 / 58. 62.100
 libavdevice 58. 11.102 / 58. 11.102
 libavfilter 7. 87.100 / 7. 87.100
 libswscale 5. 8.100 / 5. 8.100
 libswresample 3. 8.100 / 3. 8.100
 libpostproc 55. 8.100 / 55. 8.100
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x557789b49300] Incorrect number of samples in encryption info
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x557789b49300] Could not find codec parameters for stream 0 (Video: h264 (avc1 / 0x31637661), none, 512x288, 616 kb/s): unspecified pixel format
Consider increasing the value for the 'analyzeduration' (0) and 'probesize' (5000000) options
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '../videos/enc.0a7bd4e9ec72b6e0-5549.mkv':
 Metadata:
 major_brand : isom
 minor_version : 512
 compatible_brands: isomiso2avc1mp41iso5iso6
 Duration: 01:55:47.95, bitrate: 625 kb/s
 Stream #0:0(eng): Video: h264 (avc1 / 0x31637661), none, 512x288, 616 kb/s, SAR 1:1 DAR 16:9, 29.97 fps, 11988 tbr, 11988 tbn, 23976 tbc (default)
 Metadata:
 handler_name : Bento4 Video Handler
 Side data:
 unknown side data type 24 (779 bytes)
Output #0, matroska, to '../videos/dec.0a7bd4e9ec72b6e0-5549.mkv':
 Metadata:
 major_brand : isom
 minor_version : 512
 compatible_brands: isomiso2avc1mp41iso5iso6
 encoder : Lavf58.62.100
 Stream #0:0(eng): Video: h264 (avc1 / 0x31637661), none, 512x288 [SAR 1:1 DAR 16:9], q=2-31, 616 kb/s, 29.97 fps, 11988 tbr, 1k tbn, 11988 tbc (default)
 Metadata:
 handler_name : Bento4 Video Handler
 Side data:
 unknown side data type 24 (779 bytes)
Stream mapping:
 Stream #0:0 -> #0:0 (copy)
Press [q] to stop, [?] for help
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x557789b49300] Incorrect number of samples in encryption info
../videos/enc.0a7bd4e9ec72b6e0-5549.mkv: Invalid data found when processing input
frame= 0 fps=0.0 q=-1.0 Lsize= 1kB time=00:00:00.00 bitrate=N/A speed= 0x 
video:0kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown


How can I achieve the decryption without error ??


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