Hello, I'm converting an udp transport stream to http live streaming (hls). Input stream has no error and web server is properly configured. My OS is W7 64bit, Zeranoe builds.
When I try to open the http stream with ffplay (there is a similar issue with vlc): ffplay http://192.168.0.155/live/index.m3u8 I experience frequent stream freeze and the following message appears: "skipping 1 segments ahead, expired from playlists" Using VLC to generate hls fixes the problem, I can see it correctly with ffplay. FFMpeg (and vlc) command line follows: ffmpeg -probesize 20M -i udp://127.0.0.1:1500 ^ -vcodec libx264 -profile:v baseline -b:v 500k -minrate 500k -maxrate 500k -bufsize 500k -vf scale=640:360:1,fps=fps=25 ^ -acodec libvo_aacenc -b:a 128k -ac 2 -ar 44100 ^ -f hls -hls_time 5 ^ -hls_list_size 3 ^ -hls_base_url "http://192.168.0.155/live/"; ^ -hls_allow_cache 0 ^ -hls_flags delete_segments ^ c:\wamp\www\live\index.m3u8 ffmpeg version N-69498-g7620d48 Copyright (c) 2000-2015 the FFmpeg developers built with gcc 4.9.2 (GCC) configuration: --disable-static --enable-shared --enable-gpl --enable-version3 --disable-w32threads --enable-avisynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libfreetype --enable-libgme --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-librtmp --enable-libschroedinger --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvo-aacenc --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxavs --enable-libxvid --enable-lzma --enable-decklink --enable-zlib libavutil 54. 18.100 / 54. 18.100 libavcodec 56. 21.102 / 56. 21.102 libavformat 56. 19.100 / 56. 19.100 libavdevice 56. 4.100 / 56. 4.100 libavfilter 5. 9.103 / 5. 9.103 libswscale 3. 1.101 / 3. 1.101 libswresample 1. 1.100 / 1. 1.100 libpostproc 53. 3.100 / 53. 3.100 [h264 @ 00631720] non-existing PPS 0 referenced Last message repeated 1 times [h264 @ 00631720] decode_slice_header error [h264 @ 00631720] no frame! Input #0, mpegts, from 'udp://127.0.0.1:1500': Duration: N/A, start: 387.174667, bitrate: N/A Program 1 Metadata: service_name : Service01 service_provider: FFmpeg Stream #0:0[0x100]: Video: h264 (Main) ([27][0][0][0] / 0x001B), yuv420p, 720x576 [SAR 64:45 DAR 16:9], 25 fps, 25 tbr, 90k tbn, 50 tbc Stream #0:1[0x101]: Audio: aac (LC) ([15][0][0][0] / 0x000F), 48000 Hz, stereo, fltp, 140 kb/s [libx264 @ 006d2c80] using SAR=1/1 [libx264 @ 006d2c80] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 [libx264 @ 006d2c80] profile Constrained Baseline, level 3.0 Output #0, hls, to 'c:\wamp\www\live\index.m3u8': Metadata: encoder : Lavf56.19.100 Stream #0:0: Video: h264 (libx264), yuv420p, 640x360 [SAR 1:1 DAR 16:9], q=-1--1, 500 kb/s, 25 fps, 90k tbn, 25 tbc Metadata: encoder : Lavc56.21.102 libx264 Stream #0:1: Audio: aac (libvo_aacenc), 44100 Hz, stereo, s16, 128 kb/s Metadata: encoder : Lavc56.21.102 libvo_aacenc Stream mapping: Stream #0:0 -> #0:0 (h264 (native) -> h264 (libx264)) Stream #0:1 -> #0:1 (aac (native) -> aac (libvo_aacenc)) Press [q] to stop, [?] for help frame= 102 fps=0.0 q=29.0 size=N/A time=00:00:04.35 bitrate=N/A dup=8 drop=0 frame= 149 fps=147 q=28.0 size=N/A time=00:00:06.18 bitrate=N/A dup=8 drop=0 frame= 163 fps=106 q=28.0 size=N/A time=00:00:06.69 bitrate=N/A dup=8 drop=0 frame= 175 fps= 85 q=29.0 size=N/A time=00:00:07.25 bitrate=N/A dup=8 drop=0 frame= 189 fps= 73 q=28.0 size=N/A time=00:00:07.74 bitrate=N/A dup=8 drop=0 frame= 202 fps= 65 q=29.0 size=N/A time=00:00:08.27 bitrate=N/A dup=8 drop=0 frame= 214 fps= 59 q=30.0 size=N/A time=00:00:08.81 bitrate=N/A dup=8 drop=0 frame= 227 fps= 55 q=30.0 size=N/A time=00:00:09.29 bitrate=N/A dup=8 drop=0 frame= 242 fps= 52 q=30.0 size=N/A time=00:00:09.92 bitrate=N/A dup=8 drop=0 VLC command line follows: vlc -I dummy udp://@:1500 --sout-avcodec-strict=-2 --sout=#transcode{width=640,height=360,fps=25,vcodec=h264,vb=512,venc=x264 {aud,profile=baseline,level=30,keyint=25,ref=1},acodec=mp4a,ab=64}:std{access=livehttp{seglen=5,delsegs=true,numsegs=3,index=C:\wamp\www\live \index.m3u8,index-url=http://192.168.0.155/live/index-########.ts },mux=ts{use-key-frames},dst=C:\wamp\www\live\index-########.ts} Thanks, MB _______________________________________________ ffmpeg-user mailing list [email protected] http://ffmpeg.org/mailman/listinfo/ffmpeg-user
