[FFmpeg-user] FLV Video not Playing Smoothly

[NeonFlash]

Hi,


I have captured some videos from a Flash Media Server using Stream Transport. These videos were downloaded over RTMP and were saved in FLV format.

Some of these videos which are in High Definition are not playing smoothly. They play like a slideshow, frame by frame. Below, I am giving 2 outputs of ffmpeg.

One is for the video which plays properly and smoothly. The other output is for the video which does not play properly or smoothly.

output #1: This video plays smoothly:

ffmpeg -i proper.flv


[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

output #2: This video does not play smoothly:

ffmpeg -i tofix.flv

[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

How can I fix the second video so that it plays smoothly? Someone suggested me that I need to Remux the second video so that it plays smoothly.

Your help would be appreciated.

Thanks.