Status of included ffmpeg and deinterlacing??

andersos

2008-03-12, 10:50 #1

Member since Mar 2008 · 2 posts · Location: Södra Vallgrund
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Subject: Status of included ffmpeg and deinterlacing??

Hi all

I found Mythtv Player today and don't know very much about it yet. But from what I've seen it's a very interesting application that would be useful for me.

So I wanted to ask some questions :

1. From quickly browsing the site and svn I learn that ffmpeg is used. But it seems not be very recent version.
There is now h.264 multithreading and various other improvements regarding h.264 decoding in ffmpeg. Will it be very long before these features are included in Mythtv Player?

2. Mythtv recently got greedy high motion and yadiff deinterlacers (from dscaler project). Greedy h is very nice for deinterlacing (sd) digital tv. Will it be very long before dscaler deinterlacers are available in Mythtv Player?

I don't mean to put stress on someone by asking those questions, but it would be nice to have some idea of approximate timeframe for availability of those features.

Peanutious 2008-03-15, 17:37 #2

Member since Jan 2007 · 19 posts
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Hi Anderos,

You are correct that the libraries that MythTV Player uses have not been updated very recently, and the player would benefit from updated libraries. Mikkel has been quite busy these last few months so development has been moving slowly. If you have some time and would like to experiment with getting updated/additional libraries working with MythTV Player I'd be happy to help you get started.

As an aside, the latest beta versions of MythTV player support simple deinterlacing using ffmpeg -- quite a few folks have stated that they'd like to have more deinterlacing options.

Peanutious 2008-03-16, 14:49 #3

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Incidentally, I tried to compile the latest ffmpeg svn build today using MSys and MinGW following the steps shown at http://arrozcru.no-ip.org/ffmpeg_wiki/tiki-index.php and http://arrozcru.no-ip.org/ffmpeg_wiki/tiki-index…?page=S…

FFMPEG compiled just fine but created files such as libavcodec.a vs libavcodec.dll.a. The libavcodec.a is 19.4MB instead of the 440K libavcodec.dll.a found in the libs that Mikkel used for the latest development version.

I've tried compiling with MSys using the following commands with no luck in achieving .dll.a and only slight progress in reducing the file size:
Attempt #1 Building FFmpeg SVN Statically
./configure --enable-memalign-hack
make
make install

Attempt #2 Building FFmpeg SVN dlls
make distclean
./configure --enable-shared --disable-static --enable-memalign-hack
make
make install

Attempt #3 Modification from example shown at http://www.salyens.com/mingw/
./configure --extra-cflags="-mno-cygwin -mms-bitfields" --extra-ldflags="-W1
,--add-stdcall-alias" --enable-shared --disable-ffserver --disable-ffplay --en
able-memalign-hack
cd libavcodec
make

Attempt#4 Disable muxers/encoders libavcodec.a filesize=14MB
./configure --enable-memalign-hack --disable-muxers --disable-encoders
make

Mikkel, when you things calm down for you any help on compiling the latest ffmpeg libraries for MythTV Player usage would be most appreciated. Perhaps I need a bunch more disable statements to make the filesize smaller.

Here's a list of all the options when I run ./configure
$ ./configure --enable-memalign-hack
install prefix /usr/local
source path    /C/Users/Nellie/documents/justin/mythtvtempsource/ffmpeg
C compiler gcc
make make
.align is power-of-two no
ARCH x86_32 (generic)
big-endian no
MMX enabled    yes
CMOV enabled no
CMOV is fast no
EBX available    yes
EBP available    no
gprof enabled    no
debug symbols    yes
strip symbols    yes
optimizations    yes
static yes
shared no
postprocessing support no
software scaler enabled   no
new filter support no
filters using lavformat   no
video hooking    no
network support    yes
IPv6 support no
threading support    no
SDL support    no
Sun medialib support no
AVISynth enabled no
liba52 support no
liba52 dlopened    no
libamr-nb support    no
libamr-wb support    no
libdc1394 support    no
libfaac enabled    no
libfaad enabled    no
libfaad dlopened no
libgsm enabled no
libmp3lame enabled no
libnut enabled no
libtheora enabled    no
libvorbis enabled    no
x264 enabled no
XviD enabled no
zlib enabled no

Enabled decoders:
aasc h263 qpeg
adpcm_4xm    h263i    qtrle
adpcm_adx    h264 ra_144
adpcm_ct huffyuv    ra_288
adpcm_ea idcin    rawvideo
adpcm_ea_r1    imc    roq
adpcm_ea_r2    indeo2 roq_dpcm
adpcm_ea_r3    indeo3 rpza
adpcm_ea_xas interplay_dpcm rv10
adpcm_g726 interplay_video    rv20
adpcm_ima_amv    jpegls sgi
adpcm_ima_dk3    kmvc shorten
adpcm_ima_dk4    loco smackaud
adpcm_ima_ea_eacs    mace3    smacker
adpcm_ima_ea_sead    mace6    smc
adpcm_ima_qt mdec snow
adpcm_ima_smjpeg mjpeg    sol_dpcm
adpcm_ima_wav    mjpegb sonic
adpcm_ima_ws mmvideo    sp5x
adpcm_ms mp2    sunrast
adpcm_sbpro_2    mp3    svq1
adpcm_sbpro_3    mp3adu svq3
adpcm_sbpro_4    mp3on4 targa
adpcm_swf    mpc7 theora
adpcm_thp    mpc8 thp
adpcm_xa mpeg1video tiertexseqvideo
adpcm_yamaha mpeg2video tiff
alac mpeg4    truemotion1
amv    mpegvideo    truemotion2
ape    msmpeg4v1    truespeech
asv1 msmpeg4v2    tscc
asv2 msmpeg4v3    tta
atrac3 msrle    txd
avs    msvideo1 ulti
bethsoftvid    mszh vb
bmp    nellymoser vc1
c93    nuv    vcr1
cavs pcm_alaw vmdaudio
cinepak    pcm_mulaw    vmdvideo
cljr pcm_s16be    vmnc
cook pcm_s16le    vorbis
cscd pcm_s16le_planar vp3
cyuv pcm_s24be    vp5
dca    pcm_s24daud    vp6
dnxhd    pcm_s24le    vp6a
dsicinaudio    pcm_s32be    vp6f
dsicinvideo    pcm_s32le    vqa
dvbsub pcm_s8 wavpack
dvdsub pcm_u16be    wmav1
dvvideo    pcm_u16le    wmav2
eightbps pcm_u24be    wmv1
ffv1 pcm_u24le    wmv2
ffvhuff    pcm_u32be    wmv3
flac pcm_u32le    wnv1
flic pcm_u8 ws_snd1
flv    pcm_zork xan_dpcm
fourxm pcx    xan_wc3
fraps    ptx    xl
gif    qdm2 xsub
h261 qdraw    zlib

Enabled encoders:
(A lot)

Enabled parsers:
aac    h261 mpeg4video
ac3    h263 mpegaudio
cavsvideo    h264 mpegvideo
dca    mjpeg    pnm
dvbsub mlp    vc1
dvdsub

Enabled demuxers:
aac    image2 pcm_u16le
ac3    image2pipe pcm_u8
aiff ingenient    pva
amr    ipmovie    rawvideo
apc    lmlm4    redir
ape    m4v    rm
asf    matroska roq
au mjpeg    rtsp
avi    mm sdp
avs    mmf    segafilm
bethsoftvid    mov    shorten
c93    mp3    siff
daud mpc    smacker
dsicin mpc8 sol
dts    mpegps str
dv mpegts swf
dxa    mpegtsraw    thp
ea mpegvideo    tiertexseq
ea_cdata mtv    tta
ffm    mxf    txd
flac nsv    vc1
flic nut    vc1t
flv    nuv    vmd
fourxm ogg    voc
gif    pcm_alaw wav
gxf    pcm_mulaw    wc3
h261 pcm_s16be    wsaud
h263 pcm_s16le    wsvqa
h264 pcm_s8 wv
idcin    pcm_u16be    yuv4mpegpipe

Enabled muxers:
(A lot)

Enabled protocols:
file pipe tcp
http rtp    udp

Enabled filters:
crop

Enabled bsfs:
dump_extradata mov2textsub    noise
h264_mp4toannexb mp3_header_compress    remove_extradata
imx_dump_header    mp3_header_decompress   text2movsub
mjpega_dump_header

Enabled indevs:
vfwcap

Enabled outdevs:

Mikkel (Administrator) 2008-03-21, 17:42 #4

User title: Developer
Member since Oct 2006 · 222 posts · Location: Copenhagen, Denmark
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I think I compiled it using the following options (but I am not 100% sure) Also, some of the options might have changed as its been quite a while as you hint;)

./configure --enable-memalign-hack --enable-mingw32 --disable-debug --disable-encoders --enable-shared --disable-static --enable-a52 --disable-muxers --enable-gpl --disable-ffserver

It is probably the --disable-debug that does the trick about the size.

I actually tried to update the version of ffmpeg used about a year ago, but it seemed like some things were broken. If I remember correctly, it complained that I used a deprecated function to decode the audio. So I guess some testing would be needed.
If you compile the player against a newer ffmpeg I would like to know if it works as expected. Then we should update the ffmpeg version and maybe even check in the used ffmpeg version in the trunk?

Btw, I am not sure if the NUV patch works with the latest ffmpeg. The nuv patch adds support for searching in .nuv files. The patch is included in the source tree under 'libffmpeg'. (I guess it should actually be commited to the ffmpeg cvs if nobody else has added this feature)

This post was edited on 2008-03-21, 17:48 by Mikkel.

andersos

2008-03-26, 09:50 #5

Member since Mar 2008 · 2 posts · Location: Södra Vallgrund
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Thanks for the answers!! I would be willing to put some time into trying to get newer ffmpeg libraries into MythTV Player. But I don't have a working MythTV setup currently. I will build a HD capable system soon - latest in summer. (I have a Vista system though.)

So I'll see a bit later how things are here then.