Split Video Stream Out of SWF File

This section provides a tutorial example on how to split the video stream out of a stream SMF file. '-map 0:1' option is used to select the second stream (video stream) of the first input file into the output file.

After splitting the audio stream out of the SWF file, you may want to split the video stream out too. This can also be done easily with the "ffmpeg" command:

C:\herong>\local\ffmpeg\bin\ffmpeg -i input.swf -map 0:1 output.swf

The above command uses "-map 0:1" to specify the second stream (video stream) of the first input file to be mapped to the output file.

Let's try it on our sample SWF file, Anchor_and_Spider_Man.swf:

C:\herong>\local\ffmpeg\bin\ffmpeg -i Anchor_and_Spider_Man.swf 
   -map 0:1 Video_with_No_Audio.swf

Input #0, swf, from 'Anchor_and_Spider_Man.swf':
 Duration: 00:02:04.08, start: 0.000000, bitrate: 127 kb/s
  Stream #0:0: Audio: mp3, 44100 Hz, stereo, s16p, 128 kb/s
  Stream #0:1: Video: flv1, yuv420p, 416x240, 25 fps, 25 tbr, 25 tbn

Output #0, swf, to 'Video_with_No_Audio.swf':
  encoder         : Lavf55.40.100
 Stream #0:0: Video: flv1 (flv), yuv420p, 416x240, q=2-31, 200 kb/s, 
                     25 fps, 90k tbn, 25 tbc
   encoder         : Lavc55.63.100 flv

Stream mapping:
  Stream #0:1 -> #0:0 (flv -> flv)

Press [q] to stop, [?] for help
frame=198 fps=0.0 q= 2.0  size= 320kB time=00:00:07.92 bitrate=330.5
frame=744 fps=744 q=31.0  size=1093kB time=00:00:29.76 bitrate=300.9
frame=986 fps=846 q=31.0 Lsize=1311kB time=00:00:39.44 bitrate=272.3

video:1292kB audio:0kB subtitle:0kB other streams:0kB 
   global headers:0kB muxing overhead: 1.419381%

Check the output file with "swfdump" command from SWFTools first:

C:\herong>\local\SWFTools\swfdump Video_with_No_Audio.swf

[HEADER]   File version: 6
[HEADER]   File size: 1342249
[HEADER]   Frame rate: 25.000000
[HEADER]   Frame count: 986
[HEADER]   Movie width: 416.00
[HEADER]   Movie height: 240.00
[03c]   10 DEFINEVIDEOSTREAM defines id 0000 (986 frames, 416x240 s...
[01a]   21 PLACEOBJECT2 places id 0000 at depth 0001 name "video"
[03d] 9058 VIDEOFRAME adds information to id 0000 (frame 0) 416x240...
[001]    0 SHOWFRAME 1 (00:00:00,000)
[01a]    5 PLACEOBJECT2 moves object at depth 0001
[03d]  901 VIDEOFRAME adds information to id 0000 (frame 1) 416x240...
[001]    0 SHOWFRAME 2 (00:00:00,040)
[01a]    5 PLACEOBJECT2 moves object at depth 0001
[03d]  987 VIDEOFRAME adds information to id 0000 (frame 985) 416x2...
[001]    0 SHOWFRAME 986 (00:00:39,399)
[000]    0 END

The "swfdump" result looks good. Now enjoy the video without any music:

C:\herong>\local\bin\flashplayer_13_sa Video_with_No_Audio.swf

Table of Contents

 About This Book

 Introduction of Adobe Flash

 Adobe Flash Player Plugin for Firefox

 Adobe Flash Player Plugin for Chrome

 Adobe Flash Player Plugin for Safari

 Adobe Flash Player ActiveX for IE

 Using "object" Elements for Flash Files

 Using "embed" Elements for Flash Files

 "mp3player" - MP3 Music Player

 SWFObject - Hidding "object" behind JavaScript

 Flash Player Projector

 SWFTools - SWF File Manipulation Tools

 SWFC Script to Generate Flash SWF Files

 ActionScript Embedded in SWFC Script

 AS3Compile - ActionScript 3 Compiler

 Adobe Flex SDK 4

 SWF File Structure and Tags

 SWF File Processing Rules

SWF Files for Video and Audio Streams

 Video and Audio Stream SWF File Structure

 Installing FFmpeg to Manipulate Video SWF Files

 Playing Movie with FFmpeg "ffplay" Command

 See File Properties with FFmpeg "ffprobe" Command

 Convert File Format with "ffmpeg" Command

 Issue with "ffplay" on SWF Output File

 "ffplay" Interactive Commands

 Break Long Video into Parts with "ffmpeg"

 Concatenate Video Files with "ffmpeg"

 Video/Audio Stream Concatenation Order

 Split Audio Stream Out of SWF File

Split Video Stream Out of SWF File

 Merge Video and Audio Streams to SWF File

 Reduce Video Stream Resolution

 Reduce Video Frame Rate

 Outdated Tutorials


 Full Version in PDF/EPUB