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• ffmpeg command to insert the Static frames in a video, if the video has the gaps inside of it ?

  1er septembre 2020, par geo-freak

  I have a 10 min video file(.ts file), it has the gaps(empty video) from 4th min to 7th min. I want to insert the static frames from start of the gaps to end of the gap.

  


  I have a command to create the static video with null(silent) audio.

  


  ffmpeg -loop 1 -i img002.jpg -f lavfi -i anullsrc=channel_layout=5.1:sample_rate=48000 -c:v libx264 -t 10 -pix_fmt yuv420p -vf scale=480:320 -y output.ts


  


  I want to add this static video with silent audio in a a recording from specific period.

  


  How can I achieve it ?

  


  Thanks in advance.

  


• FFMPEG delay mutliple overlay videos (with different delays)

  28 avril 2019, par Bamba675

  I’m trying to overlay a video (for example a report) with different other videos or images, like hints to the facebook page or a hint to the website. These other videos or images are smaller than the original and sometimes transparent (rgba).

  I already tried to overlay multiple videos, which works pretty well :
  

  ffmpeg -i 30fps_fhd.mp4 -i sample.mp4 -i timer.webm -i logo.jpg -filter_complex "overlay = x=100:y=1000, overlay = x=30:y=66:eof_action=pass, overlay = x=0:y=0" -acodec copy -t 70 out.mp4

  But now, I want to start some videos or images not at the beginning of the video, instead after a period of time.
  I found flags like ’itsoffset’ or ’setpts’, but I dont know how to apply them on this ’multiple video / image overlay command’.

  LG Bamba

• FFMpeg command line to create specific MPD Manifest

  22 février 2024, par Seth Haberman

  I have tried to get an FFMpeg command to yield the below manifest. Right below is the FFmpeg command that I have tried to make but it has not created the same manifest file as what I am trying to replicate a stream from a third party system to add my own stream to their system so that it will actually play back.

  


  "$ffmpeg_path" \
    -i "$input_file" \
    -r 30000/1001 \
    -vf "scale=3840:1080" \
    -c:v libx265 \
    -c:a aac -b:a 128k \
    -ar 48000 \
    -f dash \
    -use_timeline 1 \
    -use_template 1 \
    -init_seg_name "init-stream\$RepresentationID\$.m4s" \
    -media_seg_name "chunk-stream\$RepresentationID\$-\$Number%05d\$.m4s" \
    -seg_duration 3 \
    "$output_file"


  


  The code above yields a manifest that is structured like below.

  


  &lt;?xml version="1.0" encoding="utf-8"?>&#xA;<mpd xmlns="urn:mpeg:dash:schema:mpd:2011" profiles="urn:mpeg:dash:profile:isoff-live:2011" type="static" mediapresentationduration="PT1M35.1S" maxsegmentduration="PT3.0S" minbuffertime="PT16.8S">&#xA;    <programinformation>&#xA;    </programinformation>&#xA;    <servicedescription>&#xA;    </servicedescription>&#xA;    <period start="PT0.0S">&#xA;        <adaptationset contenttype="video" startwithsap="1" segmentalignment="true" bitstreamswitching="true" framerate="30000/1001" maxwidth="3840" maxheight="1080" par="32:9">&#xA;            <representation mimetype="video/mp4" codecs="hev1" bandwidth="2227590" width="3840" height="1080" sar="1:1">&#xA;                <segmenttemplate timescale="30000" initialization="init-stream$RepresentationID$.m4s" media="chunk-stream$RepresentationID$-$Number%05d$.m4s" startnumber="1">&#xA;                    <segmenttimeline>&#xA;                        <s t="0" d="247247"></s>&#xA;                        <s d="250250" r="9"></s>&#xA;                        <s d="104104"></s>&#xA;                    </segmenttimeline>&#xA;                </segmenttemplate>&#xA;            </representation>&#xA;        </adaptationset>&#xA;        <adaptationset contenttype="audio" startwithsap="1" segmentalignment="true" bitstreamswitching="true">&#xA;            <representation mimetype="audio/mp4" codecs="mp4a.40.2" bandwidth="128000" audiosamplingrate="48000">&#xA;                <audiochannelconfiguration schemeiduri="urn:mpeg:dash:23003:3:audio_channel_configuration:2011" value="1"></audiochannelconfiguration>&#xA;                <segmenttemplate timescale="48000" initialization="init-stream$RepresentationID$.m4s" media="chunk-stream$RepresentationID$-$Number%05d$.m4s" startnumber="1">&#xA;                    <segmenttimeline>&#xA;                        <s t="0" d="143360"></s>&#xA;                        <s d="144384" r="29"></s>&#xA;                        <s d="93120"></s>&#xA;                    </segmenttimeline>&#xA;                </segmenttemplate>&#xA;            </representation>&#xA;        </adaptationset>&#xA;    </period>&#xA;</mpd>&#xA;&#xA;

  


  The problem is that I I need it to create a stream where the manifest looks like the manifest below. If it doesn't look or function as below, it will not playback correctly on this third parties system.

  


  &lt;?xml version="1.0" encoding="UTF-8" standalone="yes"?>&#xA;<mpd xmlns="urn:mpeg:dash:schema:mpd:2011" profiles="urn:mpeg:dash:profile:isoff-live:2011" type="static" mediapresentationduration="PT1M35.7S" minbuffertime="PT5.9S">&#xA;    <programinformation></programinformation>&#xA;    <period start="PT0.0S">&#xA;        <adaptationset contenttype="video" segmentalignment="true" bitstreamswitching="true">&#xA;            <representation bandwidth="12000000" width="3840" height="1080" framerate="30000/1001" mimetype="video/mp4" codecs="hev1">&#xA;                <segmenttemplate media="chunk-stream$RepresentationID$-$Number%05d$.m4s" initialization="init-stream$RepresentationID$.m4s" startnumber="1" timescale="30000">&#xA;                    <segmenttimeline>&#xA;                        <s t="0" d="89089" r="31"></s>&#xA;                        <s d="21021"></s>&#xA;                    </segmenttimeline>&#xA;                </segmenttemplate>&#xA;            </representation>&#xA;        </adaptationset>&#xA;        <adaptationset contenttype="audio" segmentalignment="true" bitstreamswitching="true">&#xA;            <representation bandwidth="1536000" audiosamplingrate="48000" mimetype="audio/mp4" codecs="mp4a.40.2">&#xA;                <audiochannelconfiguration schemeiduri="urn:mpeg:dash:23003:3:audio_channel_configuration:2011" value="16"></audiochannelconfiguration>&#xA;                <segmenttemplate media="chunk-stream$RepresentationID$-$Number%05d$.m4s" initialization="init-stream$RepresentationID$.m4s" startnumber="1" timescale="48000">&#xA;                    <segmenttimeline>&#xA;                        <s t="0" d="143360"></s>&#xA;                        <s d="142336" r="2"></s>&#xA;                        <s d="143360"></s>&#xA;                        <s d="142336" r="3"></s>&#xA;                        <s d="143360"></s>&#xA;                        <s d="142336" r="3"></s>&#xA;                        <s d="143360"></s>&#xA;                        <s d="142336" r="3"></s>&#xA;                        <s d="143360"></s>&#xA;                        <s d="142336" r="3"></s>&#xA;                        <s d="143360"></s>&#xA;                        <s d="142336" r="3"></s>&#xA;                        <s d="143360"></s>&#xA;                        <s d="142336" r="1"></s>&#xA;                        <s d="32768"></s>&#xA;                    </segmenttimeline>&#xA;                </segmenttemplate>&#xA;            </representation>&#xA;        </adaptationset>&#xA;    </period>&#xA;</mpd>&#xA;