# Problem streaming MP4 videos - Server-side Playlist **URL:** \ **Category:** Wowza Streaming Engine\ **Created:** [March 13, 2012, 3:01pm UTC](https://community.wowza.com/t/problem-streaming-mp4-videos-server-side-playlist/34419 "2012-03-13T15:01:58Z")\ **Posts on this page:** 8\ **Page:** 1
**Author:** ![Vinicius\_Hacebe](https://avatars.discourse-cdn.com/v4/letter/v/74df32/32.png) [@Vinicius\_Hacebe](https://community.wowza.com/u/Vinicius_Hacebe)\ **Post date:** [March 13, 2012, 3:01pm UTC](https://community.wowza.com/t/problem-streaming-mp4-videos-server-side-playlist/34419/1 "2012-03-13T15:01:58Z")
Hello everyone, I’ve been working with wowza for about 2 years and since then i had no complains… Great server. For 1 and half year i’ve been using flv as the main video files, and everything was being streamed like a charm, the biggest problem was the file size. too big for a good quality video. So, I changed to MP4, i have now low-sized files, and high quality videos. The tv station works ok and initially videos are being displayed. But sometimes when a short video is played, as soon as it finishes playing the next video doesn’t show video, just audio. I don’t know what to do. Thank you! ---
**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:** [March 13, 2012, 6:41pm UTC](https://community.wowza.com/t/problem-streaming-mp4-videos-server-side-playlist/34419/2 "2012-03-13T18:41:17Z")
If the video that follows with audio only plays with video and audio when it is played alone, then this is most likely because of a change in the video codec that the player could not handle. It might be a frame-size or FPS change, a Profile/Level change, etc. It is best to have identical or close to identical video and audio codecs in the playlist set. 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:** [September 13, 2012, 4:21pm UTC](https://community.wowza.com/t/problem-streaming-mp4-videos-server-side-playlist/34419/3 "2012-09-13T16:21:46Z")
Try the Wowza /examples/LiveVideoStreaming/client/live.html AS3 source is included in the above /client and /clientFlex folders, these are good starting places and reference for your project Richard ---
**Author:** ![Vinicius\_Hacebe](https://avatars.discourse-cdn.com/v4/letter/v/74df32/32.png) [@Vinicius\_Hacebe](https://community.wowza.com/u/Vinicius_Hacebe)\ **Post date:** [April 2, 2012, 2:34pm UTC](https://community.wowza.com/t/problem-streaming-mp4-videos-server-side-playlist/34419/4 "2012-04-02T14:34:16Z")
Hey… thanks for replying this. Well… we use the same profile on Adobe Premiere, so i believe it’s not a codec or size issue… I’ll keep searching, but i still having this problem! Thanks! ---
**Author:** ![Vinicius\_Hacebe](https://avatars.discourse-cdn.com/v4/letter/v/74df32/32.png) [@Vinicius\_Hacebe](https://community.wowza.com/u/Vinicius_Hacebe)\ **Post date:** [September 5, 2012, 1:19pm UTC](https://community.wowza.com/t/problem-streaming-mp4-videos-server-side-playlist/34419/5 "2012-09-05T13:19:13Z")
Hi. Sorry for digging up this thread, but i never got it solved. there`s one thing that made myself sure that it`s not a problem on my videos. I tryed playing the same stream on this app: [http://203.158.253.201:5080/demos/publisher.html](http://203.158.253.201:5080/demos/publisher.html) and it plays my stream correctly. I see that the problem is with my flash as3 videoplayer. I don’t know if it has something to do with AMF encoding (i’m not explicitly using any) or the metadata handler. ---
**Author:** ![Vinicius\_Hacebe](https://avatars.discourse-cdn.com/v4/letter/v/74df32/32.png) [@Vinicius\_Hacebe](https://community.wowza.com/u/Vinicius_Hacebe)\ **Post date:** [September 13, 2012, 12:48pm UTC](https://community.wowza.com/t/problem-streaming-mp4-videos-server-side-playlist/34419/6 "2012-09-13T12:48:41Z")
So randall, Thanks for replying… I found out that the problem was with my videoplayer that i have built, but i don’t know where the problem is. i was able to watch the stream with no probs using the publisher tool ([http://203.158.253.201:5080/demos/publisher.html](http://203.158.253.201:5080/demos/publisher.html)), i can actually send you the link of my videoplayer and the settings for you to test on this “publisher tool” by PM. Thank you for your attention! ---
**Author:** ![Vinicius\_Hacebe](https://avatars.discourse-cdn.com/v4/letter/v/74df32/32.png) [@Vinicius\_Hacebe](https://community.wowza.com/u/Vinicius_Hacebe)\ **Post date:** [September 13, 2012, 1:26pm UTC](https://community.wowza.com/t/problem-streaming-mp4-videos-server-side-playlist/34419/7 "2012-09-13T13:26:55Z")
Oh… How silly i was to forget Wowza sample files existence!!! I just tested them and seems to work great… i’ll keep testing it and will use its code. Thanks man, you’re always helping the community! **P.S.: The problem wasn’t solved, an when i published the demonstration file in my Flash Professional CS5.5 it happened the same problem. So I compiled (published) the FLA in another Computer and it solved the problem. the SWF file size was cut in half and it’s working great now! thanks!** ---
**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:** [September 5, 2012, 9:34pm UTC](https://community.wowza.com/t/problem-streaming-mp4-videos-server-side-playlist/34419/8 "2012-09-05T21:34:27Z")
Hello, I can offer you ways to investigate this on your own, or it might be more efficient if you can just send the requisite information to Wowza support: You can create a zip files containing your entire conf, logs and transcoder folders and the corresponding media files (not too big if possible), smils and other info, and place this on a webserver somewhere. Email the complete steps to reproduce, a link to the zip, and a link to this forum thread to support@wowza.com. Edit: Sorry I didn’t catch the part about it being player specific. Does it happen using the Wowza example players? Which ones work or don’t work?