Chang, Xiangzhong <xiangzhong.ch...@telia.no> 于2022年11月17日周四 22:00写道： > > Hi, > > Thank you so much for this amazing project. I’ve found this project has been > extremely useful for me. > I’ve found out that ffmpeg/ffplay does not work well with one of our DASH > streams. In comparison, I’ve tried the following players > > 1. ExoPlayer > 2. DASH-JS > player<https://reference.dashif.org/dash.js/v4.5.1/samples/dash-if-reference-player/index.html> > 3. Bitmovin JS > player<https://bitmovin.com/demos/stream-test?format=dash&manifest=https%3A%2F%2Fdirector.livecdn.teliaplay.net%2Fnotvm%2Fmso%2FTV_1HD%2Fdash%2Fmanifest.mpd> > > I was using the following script trying to probe/transcoding one of our DASH > stream. > ``` > ffprobe_g -loglevel debug > "https://director.livecdn.teliaplay.net/notvm/mso/TV_1HD/dash/manifest.mpd?abs_begin=2022-11-16T08:00:00Z&is_live&no_dolby";
(base) liuqi05:ffmpeg liuqi$ ~/multimedia/upstream_ffmpeg/ufbuild/ffprobe "https://director.livecdn.teliaplay.net/notvm/mso/TV_1HD/dash/manifest.mpd?abs_begin=2022-11-16T08:00:00Z&is_live&no_dolby"; ffprobe(70115,0x113793600) malloc: nano zone abandoned due to inability to preallocate reserved vm space. ffprobe version N-109033-g86157f5a25 Copyright (c) 2007-2022 the FFmpeg developers built with Apple clang version 13.1.6 (clang-1316.0.21.2.5) configuration: --prefix=/usr/local/ --libdir=/usr/local/lib/ --cc=clang --enable-htmlpages --enable-libx264 --enable-gpl --extra-ldflags='-I/usr/local/opt/openssl/include/ -O0 -g3 -fsanitize=address -Wno-error -fPIC -I/usr/local/include' --extra-ldflags='-O0 -g3 -fsanitize=address -Wno-error -fPIC -L/usr/local/lib -L/usr/local/opt/openssl/lib' --enable-libfreetype --enable-fontconfig --enable-libspeex --enable-libopus --enable-libzmq --enable-libx265 --enable-libass --enable-videotoolbox --disable-optimizations --enable-audiotoolbox --enable-opengl --disable-stripping --samples=../../fate-suite/ --enable-encoder=hevc_videotoolbox --enable-hwaccel=hevc_videotoolbox --enable-hwaccel=h264_videotoolbox --enable-openssl --enable-nonfree --disable-shared --enable-libfdk_aac --enable-libxml2 --enable-libmp3lame --enable-libaom libavutil 57. 42.100 / 57. 42.100 libavcodec 59. 52.100 / 59. 52.100 libavformat 59. 34.101 / 59. 34.101 libavdevice 59. 8.101 / 59. 8.101 libavfilter 8. 50.100 / 8. 50.100 libswscale 6. 8.112 / 6. 8.112 libswresample 4. 9.100 / 4. 9.100 libpostproc 56. 7.100 / 56. 7.100 [dash @ 0x617000000080] DTS discontinuity in stream 0: packet 99 with DTS 150189356926262, packet 100 with DTS 150189360168062 Input #0, dash, from 'https://director.livecdn.teliaplay.net/notvm/mso/TV_1HD/dash/manifest.mpd?abs_begin=2022-11-16T08:00:00Z&is_live&no_dolby': Duration: N/A, start: 1668770630.554022, bitrate: N/A Program 0 Stream #0:0: Video: h264 (High) (avc1 / 0x31637661), yuv420p(tv, bt709), 1280x720 [SAR 1:1 DAR 16:9], 50 fps, 50 tbr, 90k tbn (default) Metadata: variant_bitrate : 5000000 id : video-stream-1 Stream #0:1: Video: h264 (High) (avc1 / 0x31637661), yuv420p(tv, bt709), 1280x720 [SAR 1:1 DAR 16:9], 25 fps, 25 tbr, 90k tbn (default) Metadata: variant_bitrate : 3000000 id : video-stream-2 Stream #0:2: Video: h264 (Main) (avc1 / 0x31637661), yuv420p(tv, bt709), 1024x576 [SAR 1:1 DAR 16:9], 25 fps, 25 tbr, 90k tbn (default) Metadata: variant_bitrate : 1750000 id : video-stream-3 Stream #0:3: Video: h264 (Main) (avc1 / 0x31637661), yuv420p(tv, bt709), 640x360 [SAR 1:1 DAR 16:9], 25 fps, 25 tbr, 90k tbn (default) Metadata: variant_bitrate : 1000000 id : video-stream-4 Stream #0:4: Video: h264 (Constrained Baseline) (avc1 / 0x31637661), yuv420p(tv, bt709), 448x252 [SAR 1:1 DAR 16:9], 25 fps, 25 tbr, 90k tbn (default) Metadata: variant_bitrate : 300000 id : video-stream-5 Stream #0:5(nor): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp (default) Metadata: variant_bitrate : 192000 id : audio-stream-1 (base) liuqi05:ffmpeg liuqi$ > ``` > > The following log have drawn my attention. It seems like ffprobe has failed > to download some file chunks. > ``` > [dash @ 0x55b477e86880] DASH request for url > 'https://director.livecdn.teliaplay.net/notvm/mso/TV_1HD/dash/video-stream-1-150182387590546.mp4', > offset 0 > [tcp @ 0x55b477f09080] Starting connection attempt to 84.208.9.142 port 443 > [tcp @ 0x55b477f09080] Successfully connected to 84.208.9.142 port 443 > [tcp @ 0x55b477ed0f00] Starting connection attempt to 84.208.9.21 port 443 > [tcp @ 0x55b477ed0f00] Successfully connected to 84.208.9.21 port 443 > [https @ 0x55b477eee1c0] HTTP error 404 Not Found > ``` > > However, when I was using wget to download it, all works out > ``` > hhk9417@HC994R6KQD:~/Desktop$ wget > https://director.livecdn.teliaplay.net/notvm/mso/TV_1HD/dash/video-stream-1-150182387590546.mp4 > --2022-11-17 14:53:30-- > https://director.livecdn.teliaplay.net/notvm/mso/TV_1HD/dash/video-stream-1-150182387590546.mp4 > Resolving director.livecdn.teliaplay.net (director.livecdn.teliaplay.net)... > 84.208.9.75, 84.208.9.76, 84.208.9.141, ... > Connecting to director.livecdn.teliaplay.net > (director.livecdn.teliaplay.net)|84.208.9.75|:443... connected. > HTTP request sent, awaiting response... 302 Found > Location: > https://m323-cdne01.livecdn.teliaplay.net/notvm/mso/TV_1HD/dash/video-stream-1-150182387590546.mp4 > [following] > --2022-11-17 14:53:30-- > https://m323-cdne01.livecdn.teliaplay.net/notvm/mso/TV_1HD/dash/video-stream-1-150182387590546.mp4 > Resolving m323-cdne01.livecdn.teliaplay.net > (m323-cdne01.livecdn.teliaplay.net)... 84.208.9.21 > Connecting to m323-cdne01.livecdn.teliaplay.net > (m323-cdne01.livecdn.teliaplay.net)|84.208.9.21|:443... connected. > HTTP request sent, awaiting response... 200 OK > Length: 1293307 (1,2M) [video/mp4] > Saving to: ‘video-stream-1-150182387590546.mp4’ > > video-stream-1-150182387590546.mp4 > 100%[=====================================================================================================>] > 1,23M --.-KB/s in 0,02s > > 2022-11-17 14:53:30 (50,8 MB/s) - ‘video-stream-1-150182387590546.mp4’ saved > [1293307/1293307] > ``` > > Regarding the FFmpeg SDK, I’m using the latest master branch, I’ve compiled > it from scratch. The following are my compilation configs > ``` > --enable-gpl --enable-nonfree --enable-libfdk-aac --enable-libx264 > --enable-libx265 --enable-filter=delogo --enable-debug > --disable-optimizations --enable-libspeex --enable-shared --enable-pthreads > --enable-vaapi --enable-ffplay --disable-stripping --enable-debug=3 > --enable-libopus --enable-libv4l2 --enable-zlib --enable-vaapi > --enable-pthreads --enable-vdpau --enable-xlib --enable-libv4l2 > --enable-libfreetype --enable-demuxer=dash --enable-libxml2 --enable-libaom > --enable-libx265 --enable-openssl" > #define FFMPEG_LICENSE "nonfree and unredistributable > ``` > > Cheers. > > > > > This email may contain information which is privileged or protected against > unauthorized disclosure or communication. If you are not the intended > recipient, please notify the sender and delete this message and any > attachments from your system without producing, distributing or retaining > copies thereof or disclosing its contents to any other person. > > Telia Company processes emails and other files that may contain personal data > in accordance with Telia Company’s Privacy > Policy<https://www.teliacompany.com/en/about-the-company/privacy/>. > > > _______________________________________________ > ffmpeg-devel mailing list > ffmpeg-devel@ffmpeg.org > https://ffmpeg.org/mailman/listinfo/ffmpeg-devel > > To unsubscribe, visit link above, or email > ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe". _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe".
