search for: acodec

...the existing theora/ffmpeg. Right now we have to downsample 1080 to 480 before we can transcode, so it becomes a two-step ffmpeg process to get a 480 ogg/theora/vorbis done in realtime: One proc: ffmpeg -deinterlace -sws_flags bilinear -i - -vcodec mpeg2video -f mpegts -vb 3000000 -s 852x480 -acodec copy -v 0 -async 2 -croptop 5 -padtop 5 -padcolor 000000 - Another proc: ffmpeg -sws_flags bilinear -i - -vcodec libtheora -f ogg -vb 704000 -r 14.00 -s 852x480 -aspect 16:9 -acodec libvorbis -ar 44100 -ac 2 -ab 64000 -v 0 -async 2 - This would be a contract job hourly starting within a week,...

...using multicast paging. I can page phone to phone without issue, but sending from one of my servers to the phones results in garbled audio. Anyone else been able to make this work without problem? My VLC command line is below. cvlc -v emergency-test2.wav --norm-max-level=5 --sout "#transcode{acodec=ulaw,ab=64,channels=1,samplerate=8000}:rtp{dst=239.0.1.20,port-audio=16000,proto=udp}" -Jon

...LC 0.9.9 on Windows platform for streaming audio to icecast2 for years. Had no problems. Since Google Chrome v.65.0.33.25.181 I ran into problems. Stream will play couple of minutes and then stop. Is there something fundamentally wrong with my configuration in vlm configuration: output #transcode{acodec=mp3,ab=128,channels=2}:duplicate{dst=std{access=shout{mp3=1,bitrate=128},mux=mpeg1,dst=source:hacme at 185.139.168.34:8000/vara},dst=std{access=shout{mp3=1,bitrate=128},mux=mpeg1,dst=source:hacme at 185.139.168.36:8000/vara}} http://185.139.168.34:8000/vara http://185.139.168.36:8000/vara Yours,...

...ith oggCut and then use oggz-validate we >> get an error message like the one posted before. Now oggz-sort will fix >> the file so oggz-validate doesn't find any errors. However ffmpeg still >> produces and error with it: >> >> ffmpeg -i rlang.ogg -ab 56 -ar 22050 -acodec libmp3lame rlang.flv >> >> ... >> >> This is the same error we had before fixing the file with oggz-sort >> Any other suggestions? > > that's very interesting, can you please post a URL to the files? > Thanks for your help. My colleague has kindly prov...

...completely. When we edit the original file with oggCut and then use oggz-validate we get an error message like the one posted before. Now oggz-sort will fix the file so oggz-validate doesn't find any errors. However ffmpeg still produces and error with it: ffmpeg -i rlang.ogg -ab 56 -ar 22050 -acodec libmp3lame rlang.flv [vorbis @ 0x880dbb0]Not a Vorbis I audio packet. [vorbis @ 0x880dbb0]Not a Vorbis I audio packet. [vorbis @ 0x880dbb0]Not a Vorbis I audio packet. [theora @ 0x87fd4f0]Header packet passed to frame decoder, skipping Error while decoding stream #0.0 [theora @ 0x87fd4f0]Header p...

...implemented IceCast on a Raspberry Pi and can access the stream ONLY if I use an ffmpeg statement to start the stream. Unfortunately, the stream is choppy and the sound quality is poor. I?ve tried using ICES, but I don?t get any sound. Terminal command that works: ffmpeg -ac 2 -f alsa -i hw:0,0 -acodec mp3 -ab 48k -ac 2 -content_type audio/mpeg -f mp3 icecast://source:password at ipaddress:port/stream ICES terminal command that doesn?t work: ices2 /home/pi/ices-2.0.2/conf/ices-alsa.xml What am I missing? Thanks for any help/suggestions.

Hi, I'm trying to get ffmpeg (linked with libvorbis 1.2.3) to generate a 96kHz ogg file, but I seem to be limited to 50kHz . The command is ffmpeg -i t16bit96kHz.wav -acodec libvorbis test.ogg and I get the error message [libvorbis @ 0x2051460]oggvorbis_encode_init: init_encoder failedError while opening codec for output stream #0.0 - maybe incorrect parameters such as bit_rate, rate, width or height I tried specifying different sample rates, and anything >= 5000...

I''m converting videos to .flv but I can''t hear any sound. Is this ffmpeg command correct? ffmpeg -i #{path} -an -s 480x360 -vcodec flv -r 25 -qscale 8 -f flv -y #{flv} Thank you. --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email

...bigbuckbunny.mp4 -vcodec rawvideo \ -pix_fmt yuv420p -f rawvideo - 2>/dev/null \ | ffmpeg -an -f rawvideo -s 1920x1080 -r 24 -i - -f yuv4mpegpipe - 2>/dev/null \ |* theora_encode /dev/stdin 2>/dev/null *| ffmpeg -y -f ogg -i - \ -f mp4 -i bigbuckbunny.mp4 -map 0:0 -map 1:1 -vcodec copy \ -acodec libvorbis -ab 256000 -f ogg bigbuckbunny.ogv I am running Linux x86_64, and I got theora_encode from the package theora-tools. Here's the error: My input file is 1920x1080. My pipes going into theora_encode are 1920x1080. BUT: The pipes coming out of theora_encode have the dimensions 1920x108...

Hello - I have two files which play back in VLC correctly. They were encoded using this command: ffmpeg -y -i '/tmp/2e905b981d30324f9a0664cbabb3f59a20170406-21128-r0neh9.wav' -acodec libvorbis '/tmp/2e905b981d30324f9a0664cbabb3f59a20170406-21128-r0neh920170406-21128-146yyex.ogg However ov_pcm_total reports a zero length for one of the two files. Is this a problem with my use of the ov_pcm_total function or a problem with the encoding? The files are here http://www.credla...

Hello - I have two files which play back in VLC correctly. They were encoded using this command: ffmpeg -y -i '/tmp/2e905b981d30324f9a0664cbabb3f59a20170406-21128-r0neh9.wav' -acodec libvorbis '/tmp/2e905b981d30324f9a0664cbabb3f59a20170406-21128-r0neh920170406-21128-146yyex.ogg However ov_pcm_total reports a zero length for one of the two files. Is this a problem with my use of the ov_pcm_total function or a problem with the encoding? The files are here http://www.credla...

I wish to transcode an AVI from 29fps to 15fps theora. I have tried many combinations. The nearest I have so far is to: 1) ffmpeg -i input.avi -f avi -vcodec rawvideo -acodec pcm_s16le -r 15 -ar 22050 -ac 1 intermediate.avi then 2) ./ffmpeg2theora-0.15.linux.bin -f avi -c1 -H 22050 -o out.ogg intermediate.avi This gives me an output I want, however, the intermediate uncompressed stage generates 36Mb/sec of data, which is impractical. So it would be better if I cou...

...eaming audio to icecast2 for years. Had no problems. Since Google Chrome v.65.0.33.25.181 I ran into problems. Stream will play couple of minutes and then stop. >> >> Is there something fundamentally wrong with my configuration in vlm configuration: >> >> output #transcode{acodec=mp3,ab=128,channels=2}:duplicate{dst=std{access=shout{mp3=1,bitrate=128},mux=mpeg1,dst=source:hacme at 185.139.168.34:8000/vara},dst=std{access=shout{mp3=1,bitrate=128},mux=mpeg1,dst=source:hacme at 185.139.168.36:8000/vara}} >> >> http://185.139.168.34:8000/vara >> >> htt...

> > I think, I got the problem: > > When I re-encode both audio files with the same quality/bitrate, oggCat/oggJoin works as expected. > > The reason, that it does not work, is as follows: I had a lot of trouble concatenate the audio-files (as I was starting with video only). In many cases, the concatenation works even if the bitrate does not correspond (correct me if I am

...e node sources (0) DBUG slave/_slave_thread checking master stream list and this in access log : "SOURCE /live.ogg HTTP/1.0" 200 19 "-" "VLC media player 1.1.4" 14 For information, my "sout" command-line in vlc : '#transcode{vcodec=theo,vb=800,scale=1,acodec=vorb,ab=128,channels=2,samplerate=44100}:std{access=shout,mux=ogg,dst=source:hackme at 193.50.79.124:8000/live.ogg}' How can I troubleshoot this issue ? Thanks for your help. -- Emmanuel Lesouef

...;m joining this list because I've encountered difficulties with the ogg tools. I'm running Windows, and can't find binaries for liboggz tools, such as oggz-merge.exe Can someone provide oggz-merge.exe? So I use ffmpeg (v19289) for muxing ffmpeg -y -i sync2.ogg -i sync.ogv -vcodec copy -acodec copy sync2.ogv but the framerate fluctuates wildly on playback, and ogginfo says its corrupt E:\mediatests\sync>ogginfo sync2.ogv Processing file "sync2.ogv"... Note: Stream 1 has serial number 0, which is legal but may cause problems with some tools. New logical stream (#1, serial:...

Hello, We are working on the Radio station project and we are trying to implement the Live Video Streaming module using Icecast server with VLC player. We have installed and configured the Icecast into our server. Also, we have installed the VLC player in our local desktop computer. The USB webcam(200 CMOS UCAM - DLC220T) has been connected into my machine. Now we are trying to live video

I agree I have not seen any H264 streaming info for icecast2. If you are however interested in using ogg/vorbis (Theora) look up Theora Streaming Studio in the Theora Cookbook and it will give you some info. Additionally if you wish to script this task you can look up the info on the three commands TSS wraps, specifically dvgrab/ffmpeg2theora/oggfwd. if your source file is in a h264 medium you

...s->frame_rightBand=0; this->start_time=0; this->end_time=0; /* ZERO denotes no end time set */ } return this; } void ff2theora_output(ff2theora this) { int i; AVCodecContext *aenc = NULL; AVCodecContext *venc = NULL; AVStream *astream = NULL; AVStream *vstream = NULL; AVCodec *acodec = NULL; AVCodec *vcodec = NULL; AVIndexEntry * index_entry; float frame_aspect; int frame_number=0; double fps = 0.0; for (i = 0; i < this->context->nb_streams; i++){ AVCodecContext *enc = &this->context->streams[i]->codec; switch (enc->codec_type){ case CODEC_...

...gt;> Cc: Maciej Dudek <maciej.dudek at gmail.com> >> >> Hello - I have two files which play back in VLC correctly. >> >> They were encoded using this command: >> >> ffmpeg -y -i '/tmp/2e905b981d30324f9a0664cbabb3f59a20170406-21128-r0neh9.wav' -acodec libvorbis '/tmp/2e905b981d30324f9a0664cbabb3f59a20170406-21128-r0neh920170406-21128-146yyex.ogg >> >> However ov_pcm_total reports a zero length for one of the two files. Is this a problem with my use of the ov_pcm_total function or a problem with the encoding? The files are here...