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Sur d’autres sites (1907)

batch i need to encode hole folder files

4 mai 2019, par jonedave

I need one batch code for ffmpeg which can encode & zoom resolution of all videos inside folder to 110% & 125% of original using batch code.

Here are some codes which I test not working :

for %%a in ("*.*") do ffmpeg -i "%%a"  -vf scale=2*iw:-1, crop=iw/2:ih/2" "newfiles\%%~na.mp4"

pause

for %%a in ("*.*") do ffmpeg -i "%%a" -vf "zoompan=z='1+(1.4*in/300)':x='70*in/300':y='190*in/300':d=1"  "newfiles\%%~na.mp4"

for %%a in ("*.*") do ffmpeg -i "%%a" -vf "zoompan=z='1+(1.4*in/300"  "newfiles\%%~na.mp4"

pause

error i getting

C:\down\Compressed\DRIVER PACK FOR MOBILE PHONE\DRIVER PACK FOR MOBILE PHONE>ffm

peg -i "avutil-ics-56.dll" -vf "zoompan=z='1+(1.4*in/300"  "newfiles\avutil-ics-

56.mp4"

ffmpeg version N-93461-g6e42021128 Copyright (c) 2000-2019 the FFmpeg developers



  built with gcc 8.2.1 (GCC) 20190212

  configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfi

g --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libb

luray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enab

le-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --e

nable-libsnappy --enable-libsoxr --enable-libtheora --enable-libtwolame --enable

-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 -

-enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enab

le-libvidstab --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --en

able-libspeex --enable-libxvid --enable-libaom --enable-libmfx --enable-amf --en

able-ffnvcodec --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --e

nable-dxva2 --enable-avisynth --enable-libopenmpt

  libavutil      56. 26.100 / 56. 26.100

  libavcodec     58. 47.105 / 58. 47.105

  libavformat    58. 26.101 / 58. 26.101

  libavdevice    58.  7.100 / 58.  7.100

  libavfilter     7. 48.100 /  7. 48.100

  libswscale      5.  4.100 /  5.  4.100

  libswresample   3.  4.100 /  3.  4.100

  libpostproc    55.  4.100 / 55.  4.100

avutil-ics-56.dll: Invalid data found when processing input



C:\down\Compressed\DRIVER PACK FOR MOBILE PHONE\DRIVER PACK FOR MOBILE PHONE>ffm

peg -i "ffmpeg.exe" -vf "zoompan=z='1+(1.4*in/300"  "newfiles\ffmpeg.mp4"

ffmpeg version N-93461-g6e42021128 Copyright (c) 2000-2019 the FFmpeg developers



  built with gcc 8.2.1 (GCC) 20190212

  configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfi

g --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libb

luray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enab

le-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --e

nable-libsnappy --enable-libsoxr --enable-libtheora --enable-libtwolame --enable

-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 -

-enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enab

le-libvidstab --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --en

able-libspeex --enable-libxvid --enable-libaom --enable-libmfx --enable-amf --en

able-ffnvcodec --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --e

nable-dxva2 --enable-avisynth --enable-libopenmpt

  libavutil      56. 26.100 / 56. 26.100

  libavcodec     58. 47.105 / 58. 47.105

  libavformat    58. 26.101 / 58. 26.101

  libavdevice    58.  7.100 / 58.  7.100

  libavfilter     7. 48.100 /  7. 48.100

  libswscale      5.  4.100 /  5.  4.100

  libswresample   3.  4.100 /  3.  4.100

  libpostproc    55.  4.100 / 55.  4.100

ffmpeg.exe: Invalid data found when processing input

Anomalie #4328 : Depots inaccessibles

7 mai 2019, par Armen Spidermian
oui j’ai commencé par poser la question sur #spip
ou l’on m’a invite a ouvrir un ticket ^^

redmine@spip.org a écrit :
La demande #4328 <https://core.spip.net/issues/4328#change-14931> a
été mise à jour par b b.

Dans ce cas je t’invite à poser la question sur la liste spip-zone ou
passer sur http://irc.spip.net/ pour en discuter.

Anomalie #4328 : Depots inaccessibles
<https://core.spip.net/issues/4328#change-14931>
- Auteur : Armen Spidermian
- Statut : Fermé
- Priorité : Normal
- Assigné à :
- Catégorie :
- Version cible :
- Resolution : invalid
- Navigateur :
Spip refuse de se connecter au dépot.

2019-05-06 13:50:01 78.230.118.204 (pid 7481) :Pri:ERREUR : Erreur
connexion
2019-05-06 13:50:02 78.230.118.204 (pid 7481) :Pri:ERREUR : Erreur
connexion
2019-05-06 13:50:02 78.230.118.204 (pid 7481) :Pri : !INFO : copie_locale
: Echec recuperation https://plugins.spip.net/depots/principal.xml sur
../IMG/distant/xml/principalxml2fdc.xml status : 0

Je n’arrive pas a comprendre d’ou ca vient...

Fichiers ErreurSpip.png
<https://core.spip.net/attachments/download/1083/ErreurSpip.png> (84,9 ko)

Vous recevez ce mail car vous êtes impliqués sur ce projet.
Pour changer les préférences d’envoi de mail, allez sur
http://core.spip.net/my/account

How to correctly calculate which segments are ready to be downloaded using MPEG-DASH

24 avril 2019, par igal k

What i’m trying to do ?

Write a simple MPEG-DASH client using the SegmentTemplate pattern to calculate which segments are ready to be downloaded for a live source.

A picture taken using chrome’s debugging tools at a moment X showing an mpd request(8af651fd747.....mpd) and the actual segments fetched respectfully to that request.

Given the following MPD

<mpd availabilitystarttime="2019-04-24T06:43:32Z" maxsegmentduration="PT4.096S" minbuffertime="PT4.096S" minimumupdateperiod="PT15.835S" profiles="urn:mpeg:dash:profile:isoff-live:2011" publishtime="2019-04-24T11:14:01Z" suggestedpresentationdelay="PT11.878S" timeshiftbufferdepth="PT65.536S" type="dynamic" xmlns="urn:mpeg:dash:schema:mpd:2011">

  <location>https://content-aaps1.uplynk.com/channel/8af651fd7473474f86a05ffb0a1c8972.mpd?rmt=wv&amp;amp;cid=8af651fd7473474f86a05ffb0a1c8972&amp;amp;oid=600e5c27541344a1bf3818617ad712ce&amp;amp;prettydash=1&amp;amp;exp=1556091088&amp;amp;rn=4138683939&amp;amp;tc=1&amp;amp;ct=c&amp;amp;sig=5fb7f0c18f3f1d2ad4fdee53c02c1e1ed904bc5e8474f4ebf886d209ff7f21c9&amp;amp;pbs=05b6594bcf4b4728ac1094976a80194d</location>

  <period start="PT2826.240S">

    <adaptationset maxframerate="30" maxheight="720" maxwidth="1280" mimetype="video/mp4" segmentalignment="true" startwithsap="1">

      <representation bandwidth="2604473" codecs="avc1.64001e" framerate="30" height="360" scantype="progressive" width="640">

        <baseurl>https://x-default-stgec.uplynk.com/aapm/slices/8c1/600e5c27541344a1bf3818617ad712ce/8c1027496a964b049f1bd5895f8f0412/</baseurl>

        <segmenttemplate duration="368640" initialization="https://x-default-stgec.uplynk.com/aapm/slices/8c1/600e5c27541344a1bf3818617ad712ce/8c1027496a964b049f1bd5895f8f0412/$RepresentationID$_init.mp4?pbs=05b6594bcf4b4728ac1094976a80194d&amp;amp;_jt=l&amp;amp;chid=8af651fd7473474f86a05ffb0a1c8972" media="$RepresentationID$$Number%08d$.m4f?pbs=05b6594bcf4b4728ac1094976a80194d&amp;amp;_jt=l&amp;amp;chid=8af651fd7473474f86a05ffb0a1c8972" presentationtimeoffset="254361599" startnumber="690" timescale="90000"></segmenttemplate>

      </representation>

    </adaptationset>

  </period>

  <utctiming schemeiduri="urn:mpeg:dash:utc:http-iso:2014" value="https://content-aaps1.uplynk.com/misc/utcservertime"></utctiming>

</mpd>

I see that the next segment request should be #3955

What i have tried so far

    period.end = 1556104456;

    period.start = 2826;

    availability_start_time = 1556088212;

    max_segment_duration = 4;

    time_shift_buffer_depth = 65

So, first of all, i read DASH-IF-IOP 4.3 section 4.3.4.2 page #82 and implemented the following code :

   int k1 = 1;

int period_duration = period.end - (period.start + data_.availability_start_time);

int k2 = ceil((float)period_duration / (float)data_.max_segment_duration);

double duration = ((float)representation.duration / (float)representation.timeScale);

size_t live_edge = std::min(

    (int)floor((float)((data_.publish_time - data_.availability_start_time - period.start) / duration)), k2);



size_t oldest = std::max(k1, (int)floor((float)((data_.publish_time - data_.availability_start_time - period.start -

                                                    data_.time_shift_buffer_depth) /

                                                duration)));

after calculating everything : k1=1, k2=3355, live_edge=3272 and oldest=3256

Also tried using ffmpeg’s dashdec.c

for min_segment :

if (c->is_live &amp;&amp; pls->fragment_duration)

    {

        num = pls->first_seq_no + (((get_current_time_in_sec() - c->availability_start_time) - c->time_shift_buffer_depth) * pls->fragment_timescale) / pls->fragment_duration;

    }

for max_segment :

num = pls->first_seq_no + (((get_current_time_in_sec() - c->availability_start_time)) * pls->fragment_timescale) / pls->fragment_duration;

after a small modification :

size_t pmax = (((data_.publish_time - data_.availability_start_time))) / duration;

size_t pmin = ((data_.publish_time - data_.availability_start_time) - data_.time_shift_buffer_depth) / duration;

pmin=3946 pmax=3961

in the ffmpeg example, i had to manually remove the first_seq_no variable because it looked like i doubled added the SegmentTemplate@StartNumber.

even after succeeding in this task, how do i exactly build the request list of Segment(NOW) ----> Segment(LIVE_EDGE)

1 | ... | 470 | 471 | 472 | 473 | 474 | 475 | 476 | 477 | 478 | ... | 636

Recherche avancée

Médias (0)

Sur d’autres sites (1907)

batch i need to encode hole folder files

Anomalie #4328 : Depots inaccessibles

How to correctly calculate which segments are ready to be downloaded using MPEG-DASH

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