Free flv to mpeg software for linux

VK Toolset project is intended to aide MPEG developers and hobbyist in understanding and creating conformant MPEG streams.
The current version focuses on the MPEG system layer (MPEG-1 System, MPEG-2 Program Stream), and MPEG-2 Transport bitstreams).
Enhancements:
vk_tafe
- UI changes to PCR Analysis screen
- New PTS/DTS graph (graphs PTS/DTS values against current PCR)
- UI log for STD buffer analysis
- Updated HTML documentation
- Target build platform updated to a "modern" distro -- SuSE 10. The older Mandrake version is frozen at version 0.8f which is still included in the VK-Tools packets
- Updated win32 port
view_knot_dump
- UI no longer depends on icons subdirectory to properly display
- If local .view_knot_view config does not specify the location of vk_tafe we assume its somewhere in the PATH and try to launc it
- Updated HTML documentation
- Target build platform updated to a "modern" distro -- SuSE 10. The older Mandrake version is frozen at version 0.8f which is still included in the VK-Tools packets
- Updated win32 port
- Removed Plugins. Theyve only been broken for 5 years now :)
view_knot_viewer
- No changes

Libmpeg3 supports advanced editing and manipulation of MPEG streams. MPEG is normally a last mile distribution format but with libmpeg3 you can edit it like a production format. Unless you have a need for MPEG editing and copying, youre better off using a consumer library like FFMPEG.
Libmpeg3 is primarily a supporting library for Cinelerra. It supports all of the nonstandard operations Cinelerra needs. Libmpeg3 provides a uniform front end for a large number of the MPEG formats used in HDTV broadcasting. It decodes:
- MPEG-1 Layer II Audio
- MPEG-1 Layer III Audio
- MPEG-2 Layer III Audio
- MPEG-1 program streams
- MPEG-2 program streams
- MPEG-2 transport streams
- AC3 Audio
- MPEG-2 Video
- MPEG-1 Video
- IFO files
- VOB files
Now the good news. It can read the MPEG exports from Cinelerra.
A table of contents feature allows it to seek with frame accuracy regardless of whether the footage has timecode or not, or whether the timecode is contiguous. Also included are utilities for stream extraction, format querying, and copying.
Enhancements:
- Table of contents sample count improvements.
- Migration to GCC 4.1.

FLV::Info is an extract metadata from Flash Video files.

SYNOPSIS

use FLV::Info;
my $reader = FLV::Info->new();
$reader->parse(video.flv);
my %info = $reader->get_info();
print "$info{video_count} video framesn";
print $reader->report();

This module reads Macromedia FLV files and reports metadata about those files.

SDL::MPEG is a SDL perl extension.

SYNOPSIS

$info = new SDL::MPEG -from => $mpeg;

SDL::MPEG provides an interface to quering the status of a SMPEG stream.

METHODS

SDL::MPEG::has_audio returns true if it has audio track
SDL::MPEG::has_video returns true if it has a video track
SDL::MPEG::width returns the width of the video in pixels
SDL::MPEG::height returns the height of the video in pixels
SDL::MPEG::size returns the total size of the clip in bytes
SDL::MPEG::offset returns the offset into the clip in bytes
SDL::MPEG::frame returns the offset into the clip in fames
SDL::MPEG::fps returns the play rate in frames per second
SDL::MPEG::time returns the current play time in seconds
SDL::MPEG::length returns the total play time in seconds

Audio::MPEG is a Perl module for encoding and decoding of MPEG Audio (MP3).

SYNOPSIS

use Audio::MPEG;

Audio::MPEG is a Perl interface to the LAME and MAD MPEG audio Layers I, II, and III encoding and decoding libraries.

Rationale

I have been building a fairly extensive MP3 library, and decided to write some software to help manage the collection. Its turned out to be a rather cool piece of software (incidentally, I will be releasing it under the GPL shortly), with both a web and command line interface, good searching, integrated ripping, archive statistics, etc.

However, I also wanted to be able to stream audio, and verify the integrity of files in the archive. It is certainly possible to stream audio (even with re-encoding at a different bitrate) without resorting to writing interface glue like this module, but verification of the files was clumsy at best (e.g. scanning stdout/err for strings), and useless at worst.
Thus, Audio::MPEG was born.

LAME

This is arguably the best quality MPEG encoder available (certainly the best GPL encoder). Portions of the code have been optimized to take advantage of some of the advanced features for Intel/AMD processors, but even on non-optimized machines, such as the PowerPC, it performs quite well (faster than real-time on late 90s (and later) machines).

MAD

This is a relatively new MPEG decoding library. I chose it after struggling to clean up the MPEG decoding library included with LAME (which is based on Michael Hipps mpg123(1) implementation). In the end, I was very pleased with the results. MAD performs its decoding with an internal precision of 24 bits (pro-level quality) with fixed-point arithmetic. The code is very clean, and seems rock-solid. Although it may seem that it should be faster than the mpg123(1) library due to the use of fixed-point arithmetic, it is in fact about 60% or so of the speed (due to the higher resolution audio). However, the ease of coding against MAD, and the higher precision of the output more than makes up for the slower decoding.

Audio::MPEG can export the data at its highest precision for programs that wish to manipulate the data at the higher resolution.

Operating System Environment

I have only tested this on a Linux 2.4.x system so far, but I see no reason why it should not work on any Un*x variant. In fact, it may actually even work on a Windoze box (the underlying LAME and MAD libraries apparently compile somehow on them). I am doing no special magic with the interface, so presumably it will work under Windows. As you can probably tell, I dont really care if it does (Ill may start caring if M$ releases the source code to Windows under GPL, BSD, or Artistic licenses...). But, for you poor, misguided souls that insist upon running Windows, I expect that there should be little problem getting it to work.

Performance

You would think that with encoding/decoding audio, which is quite a compute-intensive task, Perl would be much slower than the equivalent pure C programs. Surprise... it is only about 3% slower (!) Even with the mechanism I use here (Perl->C->Perl for every frame, Perl 5.6.1 and Linux 2.4.4 (PowerPC 7500) performs just fantastic. So, the moral of this paragraph is to run your own performance tests, but theres no need to think of your own Perl encoder/decoder will be inferior to a pure C/C++ implementation. The only drawback is that, depending upon how much buffer space you use for reading, memory usage will be at least 3 times as much (eh... RAM is cheap...)

Video::Info::MPEG is a basic MPEG bitstream attribute parser.

SYNOPSIS

use strict;
use Video::Info::MPEG;

my $video = Video::Info::MPEG->new( -file => $filename );
$video->probe();

print $file->type; ## MPEG

## Audio information
print $file->acodec; ## MPEG Layer 1/2
print $file->acodecraw; ## 80
print $file->achans; ## 1
print $file->arate; ## 128000 (bits/sec)
print $file->astreams ## 1

## Video information
printf "%0.2f", $file->fps ## 29.97
print $file->height ## 240
print $file->width ## 352
print $file->vstreams ## 1
print $file->vcodec ## MPEG1
print $file->vframes ## 529
print $file->vrate ## 1000000 (bits/sec)

The Moving Picture Experts Group (MPEG) is a working group in charge of the development of standards for coded representation of digital audio and video.
MPEG audio and video clips are ubiquitous but using Perl to programmatically collect information about these bitstreams has to date been a kludge at best.

This module parses the raw bitstreams and extracts information from the packet headers. It supports Audio, Video, and System (multiplexed audio and video) packets so it can be used on nearly every MPEG you encounter.

mpeglib is a mp3 and mpeg I video/audio library for linux.
The library includeds three command line players, for mp3,wav,mpeg video.
Main features:
MPEG I library.
This library contains:
- mpeg I audio player (layer I,II,III (mp3))
- mpeg I video player
- mpeg I system layer player
- wav player
Supported features:
- direct/fast seek in all players
- length detection
- video synchronisation, based on timestamps
- mmx Support where necessary
- VBR/ID3 support for mp3
- shoutcast/icecast support
- CDI/Video CD support
- plugin architecture for input,decoder,output
Supported Outputs:
Audio
- Support for OSS/Linux, Sun
Video
- X11 standard calls (fallback)
- X11 Shared mem
- X11 XFree86 4.0 DGA 2.0 (needs root)
- X11 XFree86 4.0 XVideo Extension (hardware yuv->rgb renderer)
Supported Inputs
- file,http.
- Supports on Linux Video CDs (vcd,cdi)