Audio/video stream recording forums (http://stream-recorder.com/forum/index.php)

- Video stream recording (http://stream-recorder.com/forum/forumdisplay.php?f=4)

- -

FLV video freezes while playing

(http://stream-recorder.com/forum/showthread.php?t=14720)

FLV video freezes while playing

I have used Stream Transport to capture FLV videos from a site.

Now, the problem is, some of these videos (especially the High Definition Ones), do not play properly. I am using VLC Media Player for playing these FLV videos. They play properly for the first 9 to 10 seconds. After that the video plays very slowly. I mean, the frames appear one by one, almost like a slideshow.

I have a high end graphics card (ATI Radeon HD 5870), so it should not be related to the hardware acceleration issue. Also, I am able to play other High Definition videos on my machine without any issues.

The playback behavior of FLV videos I have downloaded from the site are of 3 types:

1. Videos which play properly without any issues at all.
2. Videos which play properly for 10 seconds or so, then freeze, then skips 10 seconds and starts playing properly again, then freezes and plays normally again.
3. Videos which play properly for first 10 to 20 seconds, after which they will play very slowly, the frames move slowly, one by one.

How can I fix this?

I can provide the details for the FLV videos for each of the above categories (stream encoding info, bitrate) using the output generated by ffmpeg.

I even tried converting the FLV videos to AVI using ffmpeg with the following command line, however, same issue:

Code:

ffmpeg -i flash.flv video.avi

I would be really glad if someone can help me solve this issue.

Thanks.

Re: FLV video freezes while playing

I have added the details provided by ffmpeg for the videos.

1. These are the details for the FLV video which plays properly:

Code:

[flv @ 004fe9a0] Invalid keyframes object, skipping.

[flv @ 004fe9a0] Keyframe index parsing failed

Input #0, flv, from 'proper.flv':

  Metadata:

    audiosize       : 1898489

    canSeekToEnd    : true

    datasize        : 7779396

    hasAudio        : true

    hasKeyframes    : true

    hasMetadata     : true

    hasVideo        : true

    lastkeyframelocation: 7780226

    lastkeyframetimestamp: 110

    lasttimestamp   : 110

    metadatacreator : Yet Another Metadata Injector for FLV - Version 1.4

    videosize       : 5850839

  Duration: 00:01:50.36, start: 0.000000, bitrate: 563 kb/s

    Stream #0:0: Video: h264 (High), yuv420p, 960x540, 421 kb/s, 25 tbr, 1k tbn,

 50 tbc

    Stream #0:1: Audio: aac, 44100 Hz, stereo, s16, 133 kb/s

2. These are the details for the FLV video which does not play properly:

Code:

[flv @ 0051e9a0] Invalid keyframes object, skipping.

[flv @ 0051e9a0] Keyframe index parsing failed

Input #0, flv, from 'tofix.flv':

  Metadata:

    audiodelay      : 0

    audiosize       : 6607344

    canSeekToEnd    : false

    datasize        : 271773993

    hasAudio        : true

    hasCuePoints    : false

    hasKeyframes    : true

    hasMetadata     : true

    hasVideo        : true

    lastkeyframetimestamp: 424

    lasttimestamp   : 425

    metadatacreator : inlet media FLVTool2 v1.0.6 - http://www.inlet-media.de/fl

vtool2

    videosize       : 265143027

  Duration: 00:07:04.62, start: 0.000000, bitrate: 1903 kb/s

    Stream #0:0: Video: flv1, yuv420p, 960x540, 5112 kb/s, 29.97 tbr, 1k tbn, 1k

 tbc

    Stream #0:1: Audio: mp3, 44100 Hz, stereo, s16, 112 kb/s

At least one output file must be specified

From the output, I can see the following:

1. The video which plays properly is in h264 format with a bit rate of 421 kbps and a resolution of 960x540.
2. The video which does not play properly is in flv1 format with a bit rate of 5112 kbps and a resolution of 960x540.

The difference is in the format (h264/flv1) and the bit rate.

Since I have already captured the videos from the flash media server, will I be able to fix the video by converting them to a lower bit rate?

Thanks.

Re: FLV video freezes while playing

No one a solution to this?

Re: FLV video freezes while playing

Quote:

Originally Posted by Forum rules v1.1

If you truly want definitive answers quickly and without
delay, please include link(s) to the web-page(s) with video(s)

stream-recorder.com/forum/announcement.php?f=4

Re: FLV video freezes while playing

@svnpenn2: I have captured the video already using Stream Transport. And my question here is not how to capture. It is about the video format. Some videos that I have captured from the server are not playing smoothly.

This is why I have given the output of ffmpeg.

Maybe there is another section on the board to discuss about fixing video files.

I will repost there and moderators can close this Topic since I don't think anyone is going to reply here.