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Autres articles (86)
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Personnaliser les catégories
21 juin 2013, parFormulaire de création d’une catégorie
Pour ceux qui connaissent bien SPIP, une catégorie peut être assimilée à une rubrique.
Dans le cas d’un document de type catégorie, les champs proposés par défaut sont : Texte
On peut modifier ce formulaire dans la partie :
Administration > Configuration des masques de formulaire.
Dans le cas d’un document de type média, les champs non affichés par défaut sont : Descriptif rapide
Par ailleurs, c’est dans cette partie configuration qu’on peut indiquer le (...) -
Publier sur MédiaSpip
13 juin 2013Puis-je poster des contenus à partir d’une tablette Ipad ?
Oui, si votre Médiaspip installé est à la version 0.2 ou supérieure. Contacter au besoin l’administrateur de votre MédiaSpip pour le savoir -
MediaSPIP Player : problèmes potentiels
22 février 2011, parLe lecteur ne fonctionne pas sur Internet Explorer
Sur Internet Explorer (8 et 7 au moins), le plugin utilise le lecteur Flash flowplayer pour lire vidéos et son. Si le lecteur ne semble pas fonctionner, cela peut venir de la configuration du mod_deflate d’Apache.
Si dans la configuration de ce module Apache vous avez une ligne qui ressemble à la suivante, essayez de la supprimer ou de la commenter pour voir si le lecteur fonctionne correctement : /** * GeSHi (C) 2004 - 2007 Nigel McNie, (...)
Sur d’autres sites (5307)
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Getting small file size from ffmpeg [duplicate]
20 février 2020, par sukachI am not an ffmpeg expert. I am trying to get some movies converted to a smaller DIVX file for a cheap portable DVD player for a family trip. The movies are for my kids so I’m not too concerned about quality.
The DVD player is a 10.1", 1024x600 screen. It says it supports DIVX/MPEG2 files. It took me a lot of experimentation to get the right ffmpeg settings to even get it to work, but I found another answer that provided a very complex set of parameters that ultimately worked.
I have converted about 20 movies with this setting and every one results in a file size of 1.1GB. I have tried different file sizes and crf settings and it is the same every time.
Here is an example. First, the original file :
General
Complete name : Charlotte's Web.m4v
Format : MPEG-4
Format profile : Base Media / Version 2
Codec ID : mp42 (isom/iso2/avc1/mp41)
File size : 4.17 GiB
Duration : 1 h 36 min
Overall bit rate mode : Variable
Overall bit rate : 6 161 kb/s
Movie name : Charlotte's Web
Performer : Julia Roberts, Steve Buscemi, John Cleese, Oprah Winfrey, Cedric the Entertainer, Reba McEntire, Kathy Bates, Robert Redford, Thomas Haden Church, André Benjamin, Dominic Scott Kay, Sam Shepard, Abraham Benrubi, Dakota Fanning, Kevin Anderson, Essie Davis, Siobhan Fallon, Louis Corbett, Robyn Arthur, Julian O'Donnell, Gary Basaraba, Nate Mooney, Nicholas Bell, Beau Bridges, Teague Rook, Julia Zemiro, Denise Kirby, Robert Plazek, Joseph Lotesto, Michael Roland, Don Bridges, Ian Watkin, Joel McCrary, Brian Stepanek, Fred Tatasciore, Bradley White, Maia Kirkpatrick, Jennessa Rose, Briana Hodge, Dale Azzopardi, Geoff Burgess, Ella Scott Lynch, Greg Marian, Stefano Mazzeo, Elizabeth Saunders
Director : Gary Winick
Actor : Julia Roberts / Steve Buscemi / John Cleese / Oprah Winfrey / Cedric the Entertainer / Reba McEntire / Kathy Bates / Robert Redford / Thomas Haden Church / André Benjamin / Dominic Scott Kay / Sam Shepard / Abraham Benrubi / Dakota Fanning / Kevin Anderson / Essie Davis / Siobhan Fallon / Louis Corbett / Robyn Arthur / Julian O'Donnell / Gary Basaraba / Nate Mooney / Nicholas Bell / Beau Bridges / Teague Rook / Julia Zemiro / Denise Kirby / Robert Plazek / Joseph Lotesto / Michael Roland / Don Bridges / Ian Watkin / Joel McCrary / Brian Stepanek / Fred Tatasciore / Bradley White / Maia Kirkpatrick / Jennessa Rose / Briana Hodge / Dale Azzopardi / Geoff Burgess / Ella Scott Lynch / Greg Marian / Stefano Mazzeo / Elizabeth Saunders
Screenplay by : Karey Kirkpatrick / Susannah Grant / Earl Hamner / Jr. / E.B. White
Producer : Julia Pistor / Jordan Kerner / Paul Neesan / Edgar M. Bronfman / Bernard Williams / Tony Winley
Genre : Comedy
ContentType : Short Film
Description : Wilbur the pig is scared of the end of the season, because he knows that come that time, he will end up on the dinner table. He hatches a plan with Charlotte, a spider that lives in his pen, to ensure that this will never happen.
Recorded date : UTC 2006-12-15 11:00:00
Encoded date : UTC 2017-01-23 02:37:54
Tagged date : UTC 2017-01-24 01:19:52
Writing application : HandBrake 1.0.1 2016122900
Cover : Yes
LongDescription : Wilbur the pig is scared of the end of the season, because he knows that come that time, he will end up on the dinner table. He hatches a plan with Charlotte, a spider that lives in his pen, to ensure that this will never happen.
ContentRating : mpaa|G|100|
Video
ID : 1
Format : AVC
Format/Info : Advanced Video Codec
Format profile : High@L4
Format settings : CABAC / 4 Ref Frames
Format settings, CABAC : Yes
Format settings, ReFrames : 4 frames
Codec ID : avc1
Codec ID/Info : Advanced Video Coding
Duration : 1 h 36 min
Bit rate : 5 691 kb/s
Width : 1 920 pixels
Height : 1 080 pixels
Display aspect ratio : 16:9
Frame rate mode : Variable
Frame rate : 23.976 (24000/1001) FPS
Minimum frame rate : 23.974 FPS
Maximum frame rate : 23.981 FPS
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Bits/(Pixel*Frame) : 0.114
Stream size : 3.86 GiB (92%)
Writing library : x264 core 148 r2708 86b7198
Encoding settings : cabac=1 / ref=3 / deblock=1:-1:-1 / analyse=0x3:0x113 / me=hex / subme=7 / psy=1 / psy_rd=1.00:0.15 / mixed_ref=1 / me_range=16 / chroma_me=1 / trellis=1 / 8x8dct=1 / cqm=0 / deadzone=21,11 / fast_pskip=1 / chroma_qp_offset=-3 / threads=6 / lookahead_threads=1 / sliced_threads=0 / nr=0 / decimate=1 / interlaced=0 / bluray_compat=0 / constrained_intra=0 / bframes=3 / b_pyramid=2 / b_adapt=1 / b_bias=0 / direct=1 / weightb=1 / open_gop=0 / weightp=2 / keyint=240 / keyint_min=24 / scenecut=40 / intra_refresh=0 / rc_lookahead=40 / rc=crf / mbtree=1 / crf=22.0 / qcomp=0.60 / qpmin=0 / qpmax=69 / qpstep=4 / vbv_maxrate=25000 / vbv_bufsize=31250 / crf_max=0.0 / nal_hrd=none / filler=0 / ip_ratio=1.40 / aq=1:1.00
Encoded date : UTC 2017-01-23 02:37:54
Tagged date : UTC 2017-01-23 02:37:54
Color range : Limited
Color primaries : BT.709
Transfer characteristics : BT.709
Matrix coefficients : BT.709
Menus : 4Here is the first encode settings :
ffmpeg -i "$1" -sn -c:a libmp3lame -ar 48000 -ab 128k -ac 2 -c:v mpeg4 -crf 24 -vtag DIVX -vf scale=1024x600:force_original_aspect_ratio=decrease -mbd rd -flags +mv4+aic -trellis 2 -cmp 2 -subcmp 2 -g 30 -vb 1500k "$2"And the resulting mediainfo :
General
Complete name : Charlotte's Web (2006) - DIVX.avi
Format : AVI
Format/Info : Audio Video Interleave
Format profile : OpenDML
File size : 1.11 GiB
Duration : 1 h 36 min
Overall bit rate : 1 644 kb/s
Movie name : Charlotte's Web
Director : Julia Roberts, Steve Buscemi, John Cleese, Oprah Winfrey, Cedric the Entertainer, Reba McEntire, Kathy Bates, Robert Redford, Thomas Haden Church, André Benjamin, Dominic Scott Kay, Sam Shepard, Abraham Benrubi, Dakota Fanning, Kevin Anderson, Essie Davis, Siobhan Fallon, Louis Corbett, Robyn Arthur, Julian O'Donnell, Gary Basaraba, Nate Mooney, Nicholas Bell, Beau Bridges, Teague Rook, Julia Zemiro, Denise Kirby, Robert Plazek, Joseph Lotesto, Michael Roland, Don Bridges, Ian Watkin, Joel McCrary, Brian Stepanek, Fred Tatasciore, Bradley White, Maia Kirkpatrick, Jennessa Rose, Briana Hodge, Dale Azzopardi, Geoff Burgess, Ella Scott Lynch, Greg Marian, Stefano Mazzeo, Elizabeth Saunders
Genre : Comedy
Recorded date : UTC 2006-12-15 11:00:00
Writing application : Lavf57.56.100
Video
ID : 0
Format : MPEG-4 Visual
Format profile : Simple@L1
Format settings, BVOP : No
Format settings, QPel : No
Format settings, GMC : No warppoints
Format settings, Matrix : Default (H.263)
Codec ID : DIVX
Codec ID/Info : Project Mayo
Codec ID/Hint : DivX 4
Duration : 1 h 36 min
Bit rate : 1 500 kb/s
Width : 1 024 pixels
Height : 576 pixels
Display aspect ratio : 16:9
Frame rate : 23.976 (24000/1001) FPS
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Compression mode : Lossy
Bits/(Pixel*Frame) : 0.106
Stream size : 1.02 GiB (91%)
Writing library : Lavc57.64.100Here was my attempt at a smaller file size (lower crf and smaller scale setting) :
ffmpeg -i "Charlotte's Web.m4v" -sn -c:a libmp3lame -ar 48000 -ab 128k -ac 2 -c:v mpeg4 -crf 30 -vtag DIVX -vf scale=800:480 -mbd rd -flags +mv4+aic -trellis 2 -cmp 2 -subcmp 2 -g 30 -vb 1500k "Charlotte's Web (2006) - DIVX 2.avi"And the resulting mediainfo :
General
Complete name : Charlotte's Web (2006) - DIVX 2.avi
Format : AVI
Format/Info : Audio Video Interleave
Format profile : OpenDML
File size : 1.11 GiB
Duration : 1 h 36 min
Overall bit rate : 1 643 kb/s
Movie name : Charlotte's Web
Director : Julia Roberts, Steve Buscemi, John Cleese, Oprah Winfrey, Cedric the Entertainer, Reba McEntire, Kathy Bates, Robert Redford, Thomas Haden Church, André Benjamin, Dominic Scott Kay, Sam Shepard, Abraham Benrubi, Dakota Fanning, Kevin Anderson, Essie Davis, Siobhan Fallon, Louis Corbett, Robyn Arthur, Julian O'Donnell, Gary Basaraba, Nate Mooney, Nicholas Bell, Beau Bridges, Teague Rook, Julia Zemiro, Denise Kirby, Robert Plazek, Joseph Lotesto, Michael Roland, Don Bridges, Ian Watkin, Joel McCrary, Brian Stepanek, Fred Tatasciore, Bradley White, Maia Kirkpatrick, Jennessa Rose, Briana Hodge, Dale Azzopardi, Geoff Burgess, Ella Scott Lynch, Greg Marian, Stefano Mazzeo, Elizabeth Saunders
Genre : Comedy
Recorded date : UTC 2006-12-15 11:00:00
Writing application : Lavf57.56.100
Video
ID : 0
Format : MPEG-4 Visual
Format profile : Simple@L1
Format settings, BVOP : No
Format settings, QPel : No
Format settings, GMC : No warppoints
Format settings, Matrix : Default (H.263)
Codec ID : DIVX
Codec ID/Info : Project Mayo
Codec ID/Hint : DivX 4
Duration : 1 h 36 min
Bit rate : 1 499 kb/s
Width : 800 pixels
Height : 480 pixels
Display aspect ratio : 16:9
Frame rate : 23.976 (24000/1001) FPS
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Compression mode : Lossy
Bits/(Pixel*Frame) : 0.163
Stream size : 1.02 GiB (91%)
Writing library : Lavc57.64.100Same file size but lower resolution.
Any ideas on what the best settings to achieve my goal ?
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Parsing The Clue Chronicles
30 décembre 2018, par Multimedia Mike — Game HackingA long time ago, I procured a 1999 game called Clue Chronicles : Fatal Illusion, based on the classic board game Clue, a.k.a. Cluedo. At the time, I was big into collecting old, unloved PC games so that I could research obscure multimedia formats.
Surveying the 3 CD-ROMs contained in the box packaging revealed only Smacker (SMK) videos for full motion video which was nothing new to me or the multimedia hacking community at the time. Studying the mix of data formats present on the discs, I found a selection of straightforward formats such as WAV for audio and BMP for still images. I generally find myself more fascinated by how computer games are constructed rather than by playing them, and this mix of files has always triggered a strong “I could implement a new engine for this !” feeling in me, perhaps as part of the ScummVM project which already provides the core infrastructure for reimplementing engines for 2D adventure games.
Tying all of the assets together is a custom high-level programming language. I have touched on this before in a blog post over a decade ago. The scripts are in a series of files bearing the extension .ini (usually reserved for configuration scripts, but we’ll let that slide). A representative sample of such a script can be found here :
What Is This Language ?
At the time I first analyzed this language, I was still primarily a C/C++-minded programmer, with a decent amount of Perl experience as a high level language, and had just started to explore Python. I assessed this language to be “mildly object oriented with C++-type comments (‘//’) and reliant upon a number of implicit library functions”. Other people saw other properties. When I look at it nowadays, it reminds me a bit more of JavaScript than C++. I think it’s sort of a Rorschach test for programming languages.Strangely, I sort of had this fear that I would put a lot of effort into figuring out how to parse out the language only for someone to come along and point out that it’s a well-known yet academic language that already has a great deal of supporting code and libraries available as open source. Google for “spanish dolphins far side comic” for an illustration of the feeling this would leave me with.
It doesn’t matter in the end. Even if such libraries exist, how easy would they be to integrate into something like ScummVM ? Time to focus on a workable approach to understanding and processing the format.
Problem Scope
So I set about to see if I can write a program to parse the language seen in these INI files. Some questions :- How large is the corpus of data that I need to be sure to support ?
- What parsing approach should I take ?
- What is the exact language format ?
- Other hidden challenges ?
To figure out how large the data corpus is, I counted all of the INI files on all of the discs. There are 138 unique INI files between the 3 discs. However, there are 146 unique INI files after installation. This leads to a hidden challenge described a bit later.
What parsing approach should I take ? I worried a bit too much that I might not be doing this the “right” way. I’m trying to ignore doubts like this, like how “SQL Shame” blocked me on a task for a little while a few years ago as I concerned myself that I might not be using the purest, most elegant approach to the problem. I know I covered language parsing a lot time ago in university computer science education and there is a lot of academic literature to the matter. But sometimes, you just have to charge in and experiment and prototype and see what falls out. In doing so, I expect to have a better understanding of the problems that need to solved and the right questions to ask, not unlike that time that I wrote a continuous integration system from scratch because I didn’t actually know that “continuous integration” was the keyword I needed.
Next, what is the exact language format ? I realized that parsing the language isn’t the first and foremost problem here– I need to know exactly what the language is. I need to know what the grammar are keywords are. In essence, I need to reverse engineer the language before I write a proper parser for it. I guess that fits in nicely with the historical aim of this blog (reverse engineering).
Now, about the hidden challenges– I mentioned that there are 8 more INI files after the game installs itself. Okay, so what’s the big deal ? For some reason, all of the INI files are in plaintext on the CD-ROM but get compressed (apparently, according to file size ratios) when installed to the hard drive. This includes those 8 extra INI files. I thought to look inside the CAB installation archive file on the CD-ROM and the files were there… but all in compressed form. I suspect that one of the files forms the “root” of the program and is the launching point for the game.
Parsing Approach
I took a stab at parsing an INI file. My approach was to first perform lexical analysis on the file and create a list of 4 types : symbols, numbers, strings, and language elements ([]{}()=., :). Apparently, this is the kind of thing that Lex/Flex are good at. This prototyping tool is written in Python, but when I port this to ScummVM, it might be useful to call upon the services of Lex/Flex, or another lexical analyzer, for there are many. I have a feeling it will be easier to use better tools when I understand the full structure of the language based on the data available.
The purpose of this tool is to explore all the possibilities of the existing corpus of INI files. To that end, I ran all 138 of the plaintext files through it, collected all of the symbols, and massaged the results, assuming that the symbols that occurred most frequently are probably core language features. These are all the symbols which occur more than 1000 times among all the scripts :6248 false 5734 looping 4390 scripts 3877 layer 3423 sequentialscript 3408 setactive 3360 file 3257 thescreen 3239 true 3008 autoplay 2914 offset 2599 transparent 2441 text 2361 caption 2276 add 2205 ge 2197 smackanimation 2196 graphicscript 2196 graphic 1977 setstate 1642 state 1611 skippable 1576 desc 1413 delayscript 1298 script 1267 seconds 1019 rect
About That Compression
I have sorted out at least these few details of the compression :bytes 0-3 "COMP" (a pretty strong sign that this is, in fact, compressed data) bytes 4-11 unknown bytes 12-15 size of uncompressed data bytes 16-19 size of compressed data (filesize - 20) bytes 20- compressed payload
The compression ratios are on the same order of gzip. I was hoping that it was stock zlib data. However, I have been unable to prove this. I wrote a Python script that scrubbed through the first 100 bytes of payload data and tried to get Python’s zlib.decompress to initialize– no luck. It’s frustrating to know that I’ll have to reverse engineer a compression algorithm that deals with just 8 total text files if I want to see this effort through to fruition.
Update, January 15, 2019
Some folks expressed interest in trying to sort out the details of the compression format. So I have posted a followup in which I post some samples and go into deeper details about things I have tried :Reverse Engineering Clue Chronicles Compression
The post Parsing The Clue Chronicles first appeared on Breaking Eggs And Making Omelettes.
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Extract Video Frames In Python
28 février 2024, par TheNoneI want to extract video frames and save them as image.



import os, sys
from PIL import Image

a, b, c = os.popen3("ffmpeg -i test.avi")
out = c.read()
dp = out.index("Duration: ")
duration = out[dp+10:dp+out[dp:].index(",")]
hh, mm, ss = map(float, duration.split(":"))
total = (hh*60 + mm)*60 + ss
for i in xrange(9):
 t = (i + 1) * total / 10
 os.system("ffmpeg -i test.avi -ss %0.3fs frame%i.png" % (t, i))



But I have this error :



FFmpeg version CVS, Copyright (c) 2000-2004 Fabrice Bellard
Mac OSX universal build for ffmpegX
 configuration: --enable-memalign-hack --enable-mp3lame --enable-gpl --disable-vhook --disable-ffplay --disable-ffserver --enable-a52 --enable-xvid --enable-faac --enable-faad --enable-amr_nb --enable-amr_wb --enable-pthreads --enable-x264 
 libavutil version: 49.0.0
 libavcodec version: 51.9.0
 libavformat version: 50.4.0
 built on Apr 15 2006 04:58:19, gcc: 4.0.1 (Apple Computer, Inc. build 5250)
Input #0, avi, from 'test.avi':
 Duration: 00:00:30.5, start: 0.000000, bitrate: 465 kb/s
 Stream #0.0, 25.00 fps(r): Video: mpeg4, yuv420p, 640x480
 Stream #0.1: Audio: mp3, 32000 Hz, mono, 32 kb/s
Unable for find a suitable output format for 'frame0.png'



Edit : ffmpeg -formats



FFmpeg version CVS, Copyright (c) 2000-2004 Fabrice Bellard
Mac OSX universal build for ffmpegX
 configuration: --enable-memalign-hack --enable-mp3lame --enable-gpl --disable-vhook --disable-ffplay --disable-ffserver --enable-a52 --enable-xvid --enable-faac --enable-faad --enable-amr_nb --enable-amr_wb --enable-pthreads --enable-x264 
 libavutil version: 49.0.0
 libavcodec version: 51.9.0
 libavformat version: 50.4.0
 built on Apr 15 2006 04:58:19, gcc: 4.0.1 (Apple Computer, Inc. build 5250)
File formats:
 E 3g2 3gp2 format
 E 3gp 3gp format
 D 4xm 4X Technologies format
 D RoQ Id RoQ format
 D aac ADTS AAC
 DE ac3 raw ac3
 E adts ADTS AAC
 DE aiff Audio IFF
 DE alaw pcm A law format
 DE amr 3gpp amr file format
 DE asf asf format
 E asf_stream asf format
 DE au SUN AU Format
 DE avi avi format
 D avs avs format
 E crc crc testing format
 D daud D-Cinema audio format
 D dts raw dts
 DE dv DV video format
 E dvd MPEG2 PS format (DVD VOB)
 D ea Electronic Arts Multimedia Format
 DE ffm ffm format
 D film_cpk Sega FILM/CPK format
 D flic FLI/FLC/FLX animation format
 DE flv flv format
 E framecrc framecrc testing format
 DE gif GIF Animation
 DE h261 raw h261
 DE h263 raw h263
 DE h264 raw H264 video format
 D idcin Id CIN format
 DE image image sequence
 DE image2 image2 sequence
 DE image2pipe piped image2 sequence
 DE imagepipe piped image sequence
 D ingenient Ingenient MJPEG
 D ipmovie Interplay MVE format
 DE m4v raw MPEG4 video format
 D matroska Matroska file format
 DE mjpeg MJPEG video
 D mm American Laser Games MM format
 DE mmf mmf format
 E mov mov format
 D mov,mp4,m4a,3gp,3g2,mj2 QuickTime/MPEG4/Motion JPEG 2000 format
 E mp2 MPEG audio layer 2
 DE mp3 MPEG audio layer 3
 E mp4 mp4 format
 DE mpeg MPEG1 System format
 E mpeg1video MPEG video
 E mpeg2video MPEG2 video
 DE mpegts MPEG2 transport stream format
 D mpegvideo MPEG video
 E mpjpeg Mime multipart JPEG format
 DE mulaw pcm mu law format
 D nsv NullSoft Video format
 E null null video format
 DE nut nut format
 D nuv NuppelVideo format
 D ogg Ogg
 E psp psp mp4 format
 D psxstr Sony Playstation STR format
 DE rawvideo raw video format
 D redir Redirector format
 DE rm rm format
 E rtp RTP output format
 D rtsp RTSP input format
 DE s16be pcm signed 16 bit big endian format
 DE s16le pcm signed 16 bit little endian format
 DE s8 pcm signed 8 bit format
 D sdp SDP
 D shn raw shorten
 D smk Smacker Video
 D sol Sierra SOL Format
 E svcd MPEG2 PS format (VOB)
 DE swf Flash format
 D tta true-audio
 DE u16be pcm unsigned 16 bit big endian format
 DE u16le pcm unsigned 16 bit little endian format
 DE u8 pcm unsigned 8 bit format
 E vcd MPEG1 System format (VCD)
 D vmd Sierra VMD format
 E vob MPEG2 PS format (VOB)
 DE voc Creative Voice File format
 DE wav wav format
 D wc3movie Wing Commander III movie format
 D wsaud Westwood Studios audio format
 D wsvqa Westwood Studios VQA format
 DE yuv4mpegpipe YUV4MPEG pipe format

Image formats (filename extensions, if any, follow):
 DE gif gif

Codecs:
 D V 4xm
 D V D 8bps
 DEA aac
 D V D aasc
 DEA ac3
 DEA adpcm_4xm
 DEA adpcm_adx
 DEA adpcm_ct
 DEA adpcm_ea
 DEA adpcm_ima_dk3
 DEA adpcm_ima_dk4
 DEA adpcm_ima_qt
 DEA adpcm_ima_smjpeg
 DEA adpcm_ima_wav
 DEA adpcm_ima_ws
 DEA adpcm_ms
 DEA adpcm_sbpro_2
 DEA adpcm_sbpro_3
 DEA adpcm_sbpro_4
 DEA adpcm_swf
 DEA adpcm_xa
 DEA adpcm_yamaha
 D A alac
 DEA amr_nb
 DEA amr_wb
 DEV D asv1
 DEV D asv2
 D V D avs
 D V bmp
 D V D camstudio
 D V D camtasia
 D V D cinepak
 D V D cljr
 D A cook
 D V D cyuv
 DES dvbsub
 DES dvdsub
 DEV D dvvideo
 DEV D ffv1
 DEVSD ffvhuff
 D A flac
 D V D flic
 DEVSD flv
 D V D fraps
 DEA g726
 DEV D h261
 DEVSDT h263
 D VSD h263i
 EV h263p
 DEV DT h264
 DEVSD huffyuv
 D V D idcinvideo
 D V D indeo2
 D V indeo3
 D A interplay_dpcm
 D V D interplayvideo
 EV jpegls
 D V kmvc
 EV ljpeg
 D V D loco
 D A mace3
 D A mace6
 D V D mdec
 DEV D mjpeg
 D V D mjpegb
 D V D mmvideo
 DEA mp2
 DEA mp3
 D A mp3adu
 D A mp3on4
 DEVSDT mpeg1video
 DEVSDT mpeg2video
 DEVSDT mpeg4
 D A mpeg4aac
 D VSDT mpegvideo
 DEVSD msmpeg4
 DEVSD msmpeg4v1
 DEVSD msmpeg4v2
 D V D msrle
 D V D msvideo1
 D V D mszh
 D V D nuv
 DEV pam
 DEV pbm
 DEA pcm_alaw
 DEA pcm_mulaw
 DEA pcm_s16be
 DEA pcm_s16le
 DEA pcm_s24be
 DEA pcm_s24daud
 DEA pcm_s24le
 DEA pcm_s32be
 DEA pcm_s32le
 DEA pcm_s8
 DEA pcm_u16be
 DEA pcm_u16le
 DEA pcm_u24be
 DEA pcm_u24le
 DEA pcm_u32be
 DEA pcm_u32le
 DEA pcm_u8
 DEV pgm
 DEV pgmyuv
 DEV png
 DEV ppm
 D A qdm2
 D V D qdraw
 D V D qpeg
 D V D qtrle
 DEV rawvideo
 D A real_144
 D A real_288
 D A roq_dpcm
 D V D roqvideo
 D V D rpza
 DEV D rv10
 DEV D rv20
 D A shorten
 D A smackaud
 D V smackvid
 D V D smc
 DEV snow
 D A sol_dpcm
 DEA sonic
 EA sonicls
 D V D sp5x
 DEV D svq1
 D VSD svq3
 D V theora
 D V D truemotion1
 D V D truemotion2
 D A truespeech
 D A tta
 D V D ultimotion
 D V vc9
 D V D vcr1
 D A vmdaudio
 D V D vmdvideo
 D A vorbis
 D V vp3
 D V D vqavideo
 D A wmav1
 D A wmav2
 DEVSD wmv1
 DEVSD wmv2
 D V D wnv1
 D A ws_snd1
 D A xan_dpcm
 D V D xan_wc3
 D V D xl
 EV xvid
 DEV D zlib
 D V zmbv

Supported file protocols:
 file: pipe: udp: rtp: tcp: http:
Frame size, frame rate abbreviations:
 ntsc pal qntsc qpal sntsc spal film ntsc-film sqcif qcif cif 4cif
Motion estimation methods:
 zero(fastest) full(slowest) log phods epzs(default) x1 hex umh iter

Note, the names of encoders and decoders dont always match, so there are
several cases where the above table shows encoder only or decoder only entries
even though both encoding and decoding are supported for example, the h263
decoder corresponds to the h263 and h263p encoders, for file formats its even
worse



What is wrong in my code ? Thanks in advance


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