# FFMPEG publish Desktop Screen and play with IOS devices **URL:** \ **Category:** Wowza Streaming Engine\ **Created:** [August 11, 2012, 6:12am UTC](https://community.wowza.com/t/ffmpeg-publish-desktop-screen-and-play-with-ios-devices/38778 "2012-08-11T06:12:09Z")\ **Posts on this page:** 6\ **Page:** 1
**Author:** ![Philipp\_Seeser](https://avatars.discourse-cdn.com/v4/letter/p/85e7bf/32.png) [@Philipp\_Seeser](https://community.wowza.com/u/Philipp_Seeser)\ **Post date:** [August 11, 2012, 6:12am UTC](https://community.wowza.com/t/ffmpeg-publish-desktop-screen-and-play-with-ios-devices/38778/1 "2012-08-11T06:12:09Z")
Hi, i use the following command to publish my desktop screen to wowza. I use the Example Application LiveVideoStreaming for this case. ```auto ffmpeg -f x11grab -s `xdpyinfo | grep 'dimensions:'|awk '{print $2}'` -i :0.0 -vcodec libx264 -b 300k -r 25 -g 48 -f flv "rtmp://myadress:1935/live/desktop" ``` It works great when i open VLC and play: rtsp://myadress:1935/live/desktop Now when I try to open the stream with an IOS Device or Apple Quicktime nothing happens. Quicktime says “Loading movie…” and iOS returns after 1 seconds saying unable to open the stream [http://myaddress:1935/live/desktop/playlist.m3u8](http://myaddress:1935/live/desktop/playlist.m3u8) Any idea? The output from wowza: > INFO session connect-pending 91.34.109.122 - > > INFO session connect 91.34.109.122 - > > INFO stream create - - > > INFO stream publish desktop - > > INFO server comment - LiveStreamPacketizerSanJose.endChunkTS[live/_definst_/desktop]: Add chunk: id:6 a/v/k:0/241/5 duration:9800 > > INFO server comment - LiveStreamPacketizerCupertino.endChunkTS[live/_definst_/desktop]: Add chunk: id:6 mode:TS a/v/k:0/240/5 duration:9800 > > INFO cupertino connect 1359404638 - > > INFO stream create desktop - > > INFO stream play desktop - > > INFO server comment - LiveStreamPacketizerSanJose.endChunkTS[live/_definst_/desktop]: Add chunk: id:7 a/v/k:0/241/5 duration:9880 > > INFO server comment - LiveStreamPacketizerCupertino.endChunkTS[live/_definst_/desktop]: Add chunk: id:7 mode:TS a/v/k:0/240/5 duration:9880 > > INFO server comment - LiveStreamPacketizerSanJose.endChunkTS[live/_definst_/desktop]: Add chunk: id:8 a/v/k:0/241/5 duration:10480 > > INFO server comment - LiveStreamPacketizerCupertino.endChunkTS[live/_definst_/desktop]: Add chunk: id:8 mode:TS a/v/k:0/240/5 duration:10480 ---
**Author:** ![Randall\_Auriemma](https://avatars.discourse-cdn.com/v4/letter/r/85e7bf/32.png) [@Randall\_Auriemma](https://community.wowza.com/u/Randall_Auriemma)\ **Post date:** [August 11, 2012, 6:29pm UTC](https://community.wowza.com/t/ffmpeg-publish-desktop-screen-and-play-with-ios-devices/38778/2 "2012-08-11T18:29:19Z")
No error msgs? I don’t see it disconnecting. You can post the output of ffprobe -show\_streams rtsp://myadress:1935/live/desktop Can you play via the rtmp URL in the Wowza LiveVideStreaming example? ---
**Author:** ![Richard\_Lanham](https://avatars.discourse-cdn.com/v4/letter/r/c68b51/32.png) [@Richard\_Lanham](https://community.wowza.com/u/Richard_Lanham)\ **Post date:** [August 12, 2012, 11:57am UTC](https://community.wowza.com/t/ffmpeg-publish-desktop-screen-and-play-with-ios-devices/38778/3 "2012-08-12T11:57:32Z")
The video is using High Profile. You want Baseline Profile, Level 3 Richard ---
**Author:** ![Richard\_Lanham](https://avatars.discourse-cdn.com/v4/letter/r/c68b51/32.png) [@Richard\_Lanham](https://community.wowza.com/u/Richard_Lanham)\ **Post date:** [August 13, 2012, 11:21am UTC](https://community.wowza.com/t/ffmpeg-publish-desktop-screen-and-play-with-ios-devices/38778/4 "2012-08-13T11:21:24Z")
Great, glad it’s working. Thanks for the update Richard ---
**Author:** ![Philipp\_Seeser](https://avatars.discourse-cdn.com/v4/letter/p/85e7bf/32.png) [@Philipp\_Seeser](https://community.wowza.com/u/Philipp_Seeser)\ **Post date:** [August 11, 2012, 11:40pm UTC](https://community.wowza.com/t/ffmpeg-publish-desktop-screen-and-play-with-ios-devices/38778/5 "2012-08-11T23:40:07Z")
> No error msgs? I don’t see it disconnecting. You can post the output of ffprobe -show\_streams rtsp://myadress:1935/live/desktop > > Can you play via the rtmp URL in the Wowza LiveVideStreaming example? Here is the ffprobe output: > [rtsp @ 0xa8b0620] Estimating duration from bitrate, this may be inaccurate > > Input #0, rtsp, from ‘rtsp://myadress:1935/live/desktop’: > > Metadata: > > title : desktop > > Duration: N/A, start: 0.022018, bitrate: N/A > > Stream #0:0: Audio: aac, 44100 Hz, stereo, s16 > > Stream #0:1: Video: h264 (High 4:4:4 Predictive), yuv420p, 728x438, 24 tbr, 90k tbn, 180k tbc > > [STREAM] > > index=0 > > codec\_name=aac > > codec\_long\_name=AAC (Advanced Audio Coding) > > profile=unknown > > codec\_type=audio > > codec\_time\_base=1/44100 > > codec\_tag\_string=[0][0][0][0] > > codec\_tag=0x0000 > > sample\_fmt=s16 > > sample\_rate=44100 > > channels=2 > > bits\_per\_sample=0 > > id=N/A > > r\_frame\_rate=0/0 > > avg\_frame\_rate=0/0 > > time\_base=1/44100 > > start\_time=0.022018 > > duration=N/A > > bit\_rate=N/A > > nb\_frames=N/A > > nb\_read\_frames=N/A > > nb\_read\_packets=N/A > > [/STREAM] > > [STREAM] > > index=1 > > codec\_name=h264 > > codec\_long\_name=H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10 > > profile=High 4:4:4 Predictive > > codec\_type=video > > codec\_time\_base=1/180000 > > codec\_tag\_string=[0][0][0][0] > > codec\_tag=0x0000 > > width=728 > > height=438 > > has\_b\_frames=2 > > sample\_aspect\_ratio=0:1 > > display\_aspect\_ratio=0:1 > > pix\_fmt=yuv420p > > level=30 > > timecode=N/A > > is\_avc=0 > > nal\_length\_size=0 > > id=N/A > > r\_frame\_rate=24/1 > > avg\_frame\_rate=0/0 > > time\_base=1/90000 > > start\_time=0.304000 > > duration=N/A > > bit\_rate=N/A > > nb\_frames=N/A > > nb\_read\_frames=N/A > > nb\_read\_packets=N/A > > [/STREAM] > > My iPhone just says: “The operation could not be completed”. There’s a disconnect for the cuppertino device after 20 seconds (maybe a timeout). > > Any idea? ---
**Author:** ![Philipp\_Seeser](https://avatars.discourse-cdn.com/v4/letter/p/85e7bf/32.png) [@Philipp\_Seeser](https://community.wowza.com/u/Philipp_Seeser)\ **Post date:** [August 12, 2012, 10:58pm UTC](https://community.wowza.com/t/ffmpeg-publish-desktop-screen-and-play-with-ios-devices/38778/6 "2012-08-12T22:58:34Z")
> The video is using High Profile. You want Baseline Profile, Level 3 > > Richard Thanks Richard, now it works!