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• ffmpeg command to add moving text watermark to video [closed]

  13 octobre 2023, par Imran Khan
  


  


          // Constants for watermark movement, direction change intervals, fade intervals, and overlap duration
        const MOVE_SPEED = 3;
        const DIRECTION_CHANGE_MIN = 3000;
        const DIRECTION_CHANGE_MAX = 6000;
        const FADE_INTERVAL_MIN = 10000;
        const FADE_INTERVAL_MAX = 20000;
        const OVERLAP_DURATION = 2000;

        // Get references to the video container and watermarks
        const container = document.querySelector('.video-container');
        const watermark1 = document.getElementById('watermark1');
        const watermark2 = document.getElementById('watermark2');

        // Helper function to get a random integer between min and max (inclusive)
        function getRandomInt(min, max) {
            return Math.floor(Math.random() * (max - min + 1)) + min;
        }

        // Helper function to get a random direction (either 1 or -1)
        function getRandomDirection() {
            return Math.random() > 0.5 ? 1 : -1;
        }

        // Set the initial position of the watermark inside the video container
        function setInitialPosition(watermark) {
            const x = getRandomInt(0, container.offsetWidth - watermark.offsetWidth);
            const y = getRandomInt(0, container.offsetHeight - watermark.offsetHeight);
            watermark.style.left = `${x}px`;
            watermark.style.top = `${y}px`;
            watermark.style.opacity = 1;
        }

        // Function to handle continuous movement of the watermark
        function continuousMove(watermark) {
            let dx = getRandomDirection() * MOVE_SPEED;
            let dy = getRandomDirection() * MOVE_SPEED;

            // Inner function to handle the actual movement logic
            function move() {
                let x = parseInt(watermark.style.left || 0) + dx;
                let y = parseInt(watermark.style.top || 0) + dy;

                // Check boundaries and reverse direction if necessary
                if (x < 0 || x > container.offsetWidth - watermark.offsetWidth) {
                    dx = -dx;
                }
                if (y < 0 || y > container.offsetHeight - watermark.offsetHeight) {
                    dy = -dy;
                }

                // Apply the new position
                watermark.style.left = `${x}px`;
                watermark.style.top = `${y}px`;

                // Continue moving
                setTimeout(move, 100);
            }

            move();

            // Change direction at random intervals
            setInterval(() => {
                const randomChoice = Math.random();
                if (randomChoice < 0.33) {
                    dx = getRandomDirection() * MOVE_SPEED;
                    dy = 0;
                } else if (randomChoice < 0.66) {
                    dy = getRandomDirection() * MOVE_SPEED;
                    dx = 0;
                } else {
                    dx = getRandomDirection() * MOVE_SPEED;
                    dy = getRandomDirection() * MOVE_SPEED;
                }
            }, getRandomInt(DIRECTION_CHANGE_MIN, DIRECTION_CHANGE_MAX));
        }

        // Handle the fading out of the old watermark and fading in of the new watermark
        function fadeOutAndIn(oldWatermark, newWatermark) {
            setTimeout(() => {
                setInitialPosition(newWatermark);
                newWatermark.style.opacity = 1;
            }, 0);

            setTimeout(() => {
                oldWatermark.style.opacity = 0;
            }, OVERLAP_DURATION);

            // Continue the cycle
            setTimeout(() => fadeOutAndIn(newWatermark, oldWatermark), getRandomInt(FADE_INTERVAL_MIN, FADE_INTERVAL_MAX));
        }

        // Initialize the watermarks
        setInitialPosition(watermark1);
        continuousMove(watermark1);
        setTimeout(() => fadeOutAndIn(watermark1, watermark2), getRandomInt(FADE_INTERVAL_MIN, FADE_INTERVAL_MAX));
        continuousMove(watermark2);
    

  


  body, html {
            height: 100%;
            margin: 0;
            font-family: Arial, sans-serif;
            display: flex;
            justify-content: center;
            align-items: center;
            background-color: #eee;
        }

        .video-container {
            width: 50vw;
            height: 50vh;
            background-color: black;
            position: relative;
            overflow: hidden;
        }

        .watermark {
            font-size: 22px;
            position: absolute;
            color: white;
            opacity: 0;
            transition: opacity 2s;
        }

  


  &#xA;&#xA;&#xA;    &#xA;    &#xA;    &#xA;&#xA;&#xA;    <div class="video-container">&#xA;        <span class="watermark">watermark</span>&#xA;        <span class="watermark">watermark</span>&#xA;    </div>&#xA;    &#xA;&#xA;

  


  


  



  I am trying to achieve an animation effect using ffmpeg. I am adding text watermark to an input video and animate the text diagonally, horizontally or vertically changed randomly. Here is what I have achieved so far.

  


  ffmpeg -i video.mp4 -c:v libx264 -preset veryfast -crf 25 -tune zerolatency -vendor ap10 -pix_fmt yuv420p -filter:v "drawtext=fontfile=./fonts/Roboto/Roboto-Light.ttf:text='Watermark':fontcolor=white:alpha=0.5:fontsize=60:y=h/10*mod(t\,10):x=w/10*mod(t\,10):enable=1" -c:a copy watermark.mp4

  


  Here is what I want it to work.

  


  Initial Position :
The watermark randomly placed in the video the first time they appear.

  


  Continuous Movement :
The watermark continuously moves within the video.
The direction and speed of the watermark's movement are random. It can move diagonally, purely horizontally, or purely vertically.
When the watermark reaches the boundaries of the video, it bounces back, changing its direction.

  


  Direction Change :
During its continuous movement, the watermark will suddenly change its direction at random intervals between 3 to 6 seconds.
When changing direction, the watermark can randomly determined move diagonally, purely horizontally, or purely vertically.

  


  Fade In and Out :
Every 10 to 20 seconds (randomly determined), the current watermark begins to fade out.
As the old watermark starts to fade out, a new watermark fades in at a random position, ensuring that there's always a visible watermark on the screen.
These two watermarks (the fading old one and the emerging new one) overlap on the screen for a duration of 2 seconds, after which the old watermark completely disappears.
These patterns and characteristics together provide a dynamic, constantly moving, and changing watermark for the video

  


  To achieve the result I think we can use the drawtext multiple times. I have attached the HTML and JavaScript variant just for the reference to understand the result but I am trying to do this using ffmpeg.

  


• Installing GPAC's player - Errors

  25 janvier 2016, par VirMarGu

  I am working with Ubuntu 14.04 LTS 64 bits.
  I am trying to compile and install GPAC’s player (Osmo) in its latest version.

  I had an installed version, but I have tried to compile one new and finally, the previous one doesn’t already work fine.

  I have made the following steps :

  1. sudo apt-get install git
  
  
  
  2. git clone https://github.com/gpac/gpac.git
  
  
  
  3. sudo apt-get install subversion make pkg-config g++ zlib1g-dev libfreetype6-dev libjpeg62-dev libpng12-dev libopenjpeg-dev
  
  libmad0-dev libfaad-dev libogg-dev libvorbis-dev libtheora-dev
  
  liba52-0.7.4-dev libavcodec-dev libavformat-dev libavutil-dev
  
  libswscale-dev libavresample-dev libxv-dev x11proto-video-dev
  
  libgl1-mesa-dev x11proto-gl-dev linux-sound-base libxvidcore-dev
  
  libssl-dev libjack-dev libasound2-dev libpulse-dev libsdl1.2-dev
  
  dvb-apps libavcodec-extra libavdevice-dev libmozjs185-dev
  
  
  
  4. cd gpac
  
  
  
  5. ./configure

  The output of the previous execution is :

  ** System Configuration
  
  Install prefix: /usr/local
  
  Source path: /home/vmg/gpac
  
  C   compiler: gcc
  
  C++ compiler: g++
  
  make: make
  
  CPU: x86_64
  
  Big Endian: no
  
  
  
  ** GPAC 0.5.2-DEV rev1167-gaef2bf4-master Core Configuration **
  
  debug version: no
  
  GProf enabled: no
  
  Static build enabled: no
  
  Memory tracking enabled: no
  
  Fixed-Point Version: no
  
  IPV6 Support: yes
  
  Static Modules: no
  
  
  
  ** Detected libraries **
  
  zlib: system
  
  OSS Audio: yes
  
  ALSA Audio: yes
  
  Jack Audio: yes
  
  PulseAudio Audio: yes
  
  DirectFB support: no
  
  X11 Shared Memory support: yes (path: /usr/X11R6)
  
  X11 XVideo support: yes
  
  SDL Support: yes
  
  OpenGL support: yes
  
  TinyGL support: no
  
  OpenSSL support: yes
  
  Mozilla XUL/GECKO support: no
  
  DVB Support: yes
  
  XMLRPC Support: no
  
  wxWidgets support: no
  
  
  
  ** Extra Libraries used **
  
  SpiderMonkey: system
  
  FreeType: system
  
  JPEG: system
  
  OpenJPEG: system
  
  PNG: system
  
  MAD: system
  
  FAAD: system
  
  XVID: system
  
  FFMPEG: system
  
  Xiph OGG: system
  
  Platinum UPnP: no
  
  AVCap: no
  
  Xiph Vorbis: system
  
  Xiph Theora: system
  
  A52 (AC3): system
  
  OpenSVCDecoder: no
  
  OpenHEVCDecoder: no
  
  Freenect: no
  
  
  
  Creating config.mak
  
  config.h is unchanged
  
  Check config.log for detection failures
  
  Done - type 'make help' for make info, 'make' to build

  6. make

     make -C src all
     make[1] : Entering directory

     /home/vmg/gpac/src'
 CC utils/os_divers.c
 CC utils/os_file.c
 CC utils/list.c
 CC utils/bitstream.c
 CC utils/error.c
 CC utils/alloc.c
utils/alloc.c: In function ‘gf_asprintf’:
utils/alloc.c:868:2: warning: implicit declaration of function ‘asprintf’ [-Wimplicit-function-declaration]
 size = asprintf(strp, fmt, args);
 ^
 CC utils/url.c
 CC utils/configfile.c
 CC utils/sha1.c
 CC utils/base_encoding.c
 CC utils/os_net.c
 CC utils/os_thread.c
 CC utils/os_config_init.c
 CC utils/cache.c
utils/cache.c: In function ‘gf_cache_create_entry’:
utils/cache.c:482:10: warning: variable ‘err’ set but not used [-Wunused-but-set-variable]
  GF_Err err;
         ^
utils/cache.c:526:10: warning: variable ‘err’ set but not used [-Wunused-but-set-variable]
  GF_Err err;
         ^
 CC utils/downloader.c
utils/downloader.c: In function ‘gf_dm_connect’:
utils/downloader.c:1385:8: warning: variable ‘ret’ set but not used [-Wunused-but-set-variable]
   int ret;
       ^
 CC utils/xml_parser.c
 CC utils/utf.c
 CC utils/token.c
 CC utils/color.c
 CC utils/os_module.c
 CC utils/path2d.c
 CC utils/path2d_stroker.c
 CC utils/module.c
 CC utils/uni_bidi.c
 CC utils/ringbuffer.c
 CC utils/map.c
 CC ietf/rtcp.c
 CC ietf/rtp.c
 CC ietf/rtp_packetizer.c
 CC ietf/rtp_pck_3gpp.c
 CC ietf/rtp_pck_mpeg12.c
 CC ietf/rtp_pck_mpeg4.c
 CC ietf/rtsp_command.c
 CC ietf/rtsp_common.c
 CC ietf/rtsp_response.c
 CC ietf/rtsp_session.c
 CC ietf/sdp.c
 CC ietf/rtp_depacketizer.c
 CC ietf/rtp_streamer.c
 CC bifs/arith_decoder.c
 CC bifs/bifs_codec.c
 CC bifs/bifs_node_tables.c
 CC bifs/com_dec.c
 CC bifs/com_enc.c
 CC bifs/conditional.c
 CC bifs/field_decode.c
 CC bifs/field_encode.c
 CC bifs/memory_decoder.c
 CC bifs/predictive_mffield.c
 CC bifs/quantize.c
 CC bifs/script_dec.c
 CC bifs/script_enc.c
 CC bifs/unquantize.c
 CC odf/desc_private.c
 CC odf/descriptors.c
 CC odf/odf_code.c
odf/odf_code.c: In function ‘gf_odf_write_kw’:
odf/odf_code.c:2633:9: warning: variable ‘e’ set but not used [-Wunused-but-set-variable]
 GF_Err e;
        ^
 CC odf/odf_codec.c
 CC odf/odf_command.c
odf/odf_command.c: In function ‘gf_odf_write_od_remove’:
odf/odf_command.c:171:9: warning: variable ‘e’ set but not used [-Wunused-but-set-variable]
 GF_Err e;
        ^
odf/odf_command.c: In function ‘gf_odf_del_ipmp_update’:
odf/odf_command.c:570:9: warning: variable ‘e’ set but not used [-Wunused-but-set-variable]
 GF_Err e;
        ^
 CC odf/qos.c
 CC odf/slc.c
odf/slc.c: In function ‘gf_odf_write_slc’:
odf/slc.c:261:9: warning: variable ‘e’ set but not used [-Wunused-but-set-variable]
 GF_Err e;
        ^
 CC odf/ipmpx_code.c
 CC odf/oci_codec.c
 CC odf/ipmpx_dump.c
 CC odf/ipmpx_parse.c
 CC odf/odf_dump.c
 CC odf/odf_parse.c
 CC laser/lsr_enc.c
 CC laser/lsr_dec.c
 CC laser/lsr_tables.c
 CC isomedia/avc_ext.c
 CC isomedia/box_code_3gpp.c
isomedia/box_code_3gpp.c: In function ‘styl_Write’:
isomedia/box_code_3gpp.c:641:9: warning: variable ‘e’ set but not used [-Wunused-but-set-variable]
 GF_Err e;
        ^
 CC isomedia/box_code_apple.c
 CC isomedia/box_code_base.c
isomedia/box_code_base.c: In function ‘mp4a_AddBox’:
isomedia/box_code_base.c:3511:12: warning: variable ‘e’ set but not used [-Wunused-but-set-variable]
    GF_Err e;
           ^
 CC isomedia/box_code_drm.c
isomedia/box_code_drm.c: In function ‘schm_Write’:
isomedia/box_code_drm.c:196:9: warning: variable ‘e’ set but not used [-Wunused-but-set-variable]
 GF_Err e;
        ^
 CC isomedia/box_code_meta.c
 CC isomedia/box_dump.c
 CC isomedia/box_funcs.c
 CC isomedia/data_map.c
 CC isomedia/drm_sample.c
 CC isomedia/isom_intern.c
 CC isomedia/isom_read.c
 CC isomedia/isom_store.c
 CC isomedia/isom_write.c
isomedia/isom_write.c: In function ‘gf_isom_estimate_size’:
isomedia/isom_write.c:3818:9: warning: variable ‘e’ set but not used [-Wunused-but-set-variable]
 GF_Err e;
        ^
 CC isomedia/media.c
 CC isomedia/media_odf.c
 CC isomedia/meta.c
 CC isomedia/movie_fragments.c
 CC isomedia/sample_descs.c
 CC isomedia/stbl_read.c
 CC isomedia/stbl_write.c
 CC isomedia/track.c
 CC isomedia/tx3g.c
 CC isomedia/iff.c
 CC isomedia/hint_track.c
 CC isomedia/hinting.c
 CC isomedia/box_code_adobe.c
 CC isomedia/ttml.c
 CC scene_manager/scene_manager.c
scene_manager/scene_manager.c: In function ‘gf_sm_update_bitwrapper_buffer’:
scene_manager/scene_manager.c:764:11: warning: ignoring return value of ‘fread’, declared with attribute warn_unused_result [-Wunused-result]
     fread(data, 1, data_size, f);
          ^
 CC scene_manager/text_to_bifs.c
 CC scene_manager/loader_bt.c
 CC scene_manager/loader_xmt.c
 CC scene_manager/loader_isom.c
 CC scene_manager/loader_qt.c
 CC scene_manager/loader_svg.c
 CC scene_manager/swf_parse.c
scene_manager/swf_parse.c: In function ‘swf_def_bits_jpeg’:
scene_manager/swf_parse.c:2100:10: warning: variable ‘e’ set but not used [-Wunused-but-set-variable]
  GF_Err e;
         ^
 CC scene_manager/swf_bifs.c
 CC scene_manager/swf_svg.c
 CC scene_manager/scene_dump.c
 CC scene_manager/scene_stats.c
 CC scene_manager/scene_engine.c
 CC scene_manager/encode_isom.c
 CC terminal/channel.c
 CC terminal/clock.c
 CC terminal/decoder.c
 CC terminal/term_node_init.c
 CC terminal/input_sensor.c
 CC terminal/media_control.c
 CC terminal/media_manager.c
 CC terminal/media_memory.c
 CC terminal/media_object.c
 CC terminal/media_sensor.c
 CC terminal/mpeg4_inline.c
 CC terminal/network_service.c
 CC terminal/object_browser.c
 CC terminal/object_manager.c
 CC terminal/scene.c
 CC terminal/terminal.c
 CC terminal/svg_external.c
 CC compositor/audio_input.c
 CC compositor/audio_mixer.c
 CC compositor/audio_render.c
 CC compositor/bindable.c
 CC compositor/camera.c
 CC compositor/compositor.c
 CC compositor/compositor_2d.c
 CC compositor/compositor_3d.c
 CC compositor/compositor_node_init.c
 CC compositor/drawable.c
 CC compositor/events.c
 CC compositor/font_engine.c
 CC compositor/hc_flash_shape.c
 CC compositor/hardcoded_protos.c
 CC compositor/mesh.c
 CC compositor/mesh_collide.c
 CC compositor/mesh_tesselate.c
 CC compositor/mpeg4_animstream.c
 CC compositor/mpeg4_audio.c
 CC compositor/mpeg4_background.c
 CC compositor/mpeg4_background2d.c
 CC compositor/mpeg4_bitmap.c
 CC compositor/mpeg4_composite.c
 CC compositor/mpeg4_form.c
 CC compositor/mpeg4_geometry_2d.c
 CC compositor/mpeg4_geometry_3d.c
 CC compositor/mpeg4_geometry_ifs2d.c
 CC compositor/mpeg4_geometry_ils2d.c
 CC compositor/mpeg4_gradients.c
 CC compositor/mpeg4_grouping.c
 CC compositor/mpeg4_grouping_2d.c
 CC compositor/mpeg4_grouping_3d.c
 CC compositor/mpeg4_layer_2d.c
 CC compositor/mpeg4_layer_3d.c
 CC compositor/mpeg4_layout.c
 CC compositor/mpeg4_lighting.c
 CC compositor/mpeg4_path_layout.c
 CC compositor/mpeg4_sensors.c
 CC compositor/mpeg4_sound.c
 CC compositor/mpeg4_text.c
 CC compositor/mpeg4_textures.c
 CC compositor/mpeg4_timesensor.c
 CC compositor/mpeg4_viewport.c
 CC compositor/navigate.c
 CC compositor/offscreen_cache.c
 CC compositor/svg_base.c
 CC compositor/svg_filters.c
 CC compositor/svg_font.c
 CC compositor/svg_geometry.c
 CC compositor/svg_grouping.c
 CC compositor/svg_media.c
 CC compositor/svg_paint_servers.c
 CC compositor/svg_text.c
 CC compositor/texturing.c
 CC compositor/texturing_gl.c
 CC compositor/visual_manager.c
 CC compositor/visual_manager_2d.c
 CC compositor/visual_manager_2d_draw.c
 CC compositor/visual_manager_3d.c
 CC compositor/visual_manager_3d_gl.c
 CC compositor/x3d_geometry.c
 CC scenegraph/base_scenegraph.c
 CC scenegraph/mpeg4_animators.c
 CC scenegraph/commands.c
 CC scenegraph/mpeg4_nodes.c
 CC scenegraph/mpeg4_valuator.c
 CC scenegraph/vrml_interpolators.c
 CC scenegraph/vrml_proto.c
 CC scenegraph/vrml_route.c
 CC scenegraph/vrml_script.c
 CC scenegraph/vrml_smjs.c
 CC scenegraph/vrml_tools.c
 CC scenegraph/x3d_nodes.c
 CC scenegraph/svg_attributes.c
 CC scenegraph/svg_types.c
 CC scenegraph/svg_smjs.c
 CC scenegraph/smil_anim.c
 CC scenegraph/smil_timing.c
 CC scenegraph/svg_properties.c
 CC scenegraph/dom_events.c
 CC scenegraph/dom_smjs.c
 CC scenegraph/xbl_process.c
 CC scenegraph/xml_ns.c
 CC scenegraph/html5_media_smjs.c
 CC scenegraph/html5_mse_smjs.c
 CC scenegraph/webvtt_smjs.c
 CC media_tools/isom_tools.c
media_tools/isom_tools.c: In function ‘gf_media_change_pl’:
media_tools/isom_tools.c:2321:9: warning: variable ‘e’ set but not used [-Wunused-but-set-variable]
 GF_Err e;
        ^
 CC media_tools/dash_segmenter.c
media_tools/dash_segmenter.c: In function ‘gf_media_isom_segment_file’:
media_tools/dash_segmenter.c:1666:21: warning: variable ‘SegmentNum’ set but not used [-Wunused-but-set-variable]
        u32 scaler, SegmentNum;
                    ^
media_tools/dash_segmenter.c: In function ‘dasher_isom_segment_file’:
media_tools/dash_segmenter.c:2969:6: warning: ‘track_duration2’ may be used uninitialized in this function [-Wmaybe-uninitialized]
   e = dasher_isom_adjust_last_sample(in, trackNumber, track_duration2, target_duration_in_timescale, fragment_duration_in_sec);
     ^
media_tools/dash_segmenter.c:2952:14: note: ‘track_duration2’ was declared here
   u32 i, j, track_duration2, sample_count = gf_isom_get_sample_count(in, trackNumber);
             ^
 CC media_tools/av_parsers.c
media_tools/av_parsers.c: In function ‘gf_ac3_parser_bs’:
media_tools/av_parsers.c:4694:64: warning: variable ‘syncword’ set but not used [-Wunused-but-set-variable]
 u32 fscod, frmsizecod, bsid, ac3_mod, freq, framesize, bsmod, syncword;
                                                               ^
media_tools/av_parsers.c: In function ‘gf_eac3_parser_bs’:
media_tools/av_parsers.c:4759:45: warning: variable ‘syncword’ set but not used [-Wunused-but-set-variable]
 u32 fscod, bsid, ac3_mod, freq, framesize, syncword, substreamid, lfon, channels, numblkscod;
                                            ^
 CC media_tools/img.c
 CC media_tools/media_import.c
media_tools/media_import.c: In function ‘gf_import_amr_evrc_smv’:
media_tools/media_import.c:3803:54: warning: variable ‘readen’ set but not used [-Wunused-but-set-variable]
 u32 track, trackID, di, sample_rate, block_size, i, readen;
                                                     ^
media_tools/media_import.c: In function ‘gf_import_raw_unit’:
media_tools/media_import.c:6971:35: warning: variable ‘readen’ set but not used [-Wunused-but-set-variable]
 u32 mtype, track, di, timescale, readen;
                                  ^
 CC media_tools/mpegts.c
media_tools/mpegts.c: In function ‘gf_m2ts_process_tdt_tot’:
media_tools/mpegts.c:1952:6: warning: variable ‘data_size’ set but not used [-Wunused-but-set-variable]
 u32 data_size, nb_sections;
     ^
 CC media_tools/m3u8.c
 CC media_tools/mpd.c
media_tools/mpd.c: In function ‘gf_m3u8_fill_mpd_struct.isra.15’:
media_tools/mpd.c:1267:45: warning: ‘pe’ may be used uninitialized in this function [-Wmaybe-uninitialized]
   set->segment_template->duration = (u32)pe->duration_info;
                                            ^
 CC media_tools/dash_client.c
media_tools/dash_client.c: In function ‘gf_dash_update_manifest’:
media_tools/dash_client.c:2083:6: warning: ‘force_timeline_setup’ may be used uninitialized in this function [-Wmaybe-uninitialized]
  if (force_timeline_setup) {
     ^
media_tools/dash_client.c: In function ‘gf_dash_get_segment_availability_start_time’:
media_tools/dash_client.c:1329:21: warning: ‘scale’ may be used uninitialized in this function [-Wmaybe-uninitialized]
  *segment_duration /= scale;
                    ^
media_tools/dash_client.c:1324:6: note: ‘scale’ was declared here
 u32 scale;
     ^
media_tools/dash_client.c:1328:23: warning: ‘dur’ may be used uninitialized in this function [-Wmaybe-uninitialized]
  *segment_duration = (Double) dur;
                      ^
media_tools/dash_client.c:1323:13: note: ‘dur’ was declared here
 u64 start, dur;
            ^
media_tools/dash_client.c: In function ‘gf_dash_group_current_segment_start_time’:
media_tools/dash_client.c:1331:24: warning: ‘scale’ may be used uninitialized in this function [-Wmaybe-uninitialized]
 return ((Double)start)/scale;
                       ^
media_tools/dash_client.c:1324:6: note: ‘scale’ was declared here
 u32 scale;
     ^
 CC media_tools/media_export.c
 CC media_tools/m2ts_mux.c
media_tools/m2ts_mux.c: In function ‘gf_m2ts_mux_table_get_next_packet’:
media_tools/m2ts_mux.c:486:21: warning: variable ‘table’ set but not used [-Wunused-but-set-variable]
 GF_M2TS_Mux_Table *table;
                    ^
 CC media_tools/filestreamer.c
 CC media_tools/avilib.c
 CC media_tools/mpeg2_ps.c
 CC media_tools/gpac_ogg.c
 CC media_tools/ismacryp.c
 CC media_tools/isom_hinter.c
 CC media_tools/saf.c
 CC media_tools/vobsub.c
 CC media_tools/text_import.c
 CC media_tools/html5_media.c
 CC media_tools/html5_mse.c
media_tools/html5_mse.c: In function ‘gf_mse_parse_segment’:
media_tools/html5_mse.c:783:12: warning: variable ‘e’ set but not used [-Wunused-but-set-variable]
    GF_Err e;
           ^
 CC media_tools/webvtt.c
 CC mcrypt/cbc.c
 CC mcrypt/cfb.c
 CC mcrypt/ctr.c
 CC mcrypt/des.c
 CC mcrypt/ecb.c
 CC mcrypt/g_crypt.c
 CC mcrypt/ncfb.c
 CC mcrypt/nofb.c
 CC mcrypt/ofb.c
 CC mcrypt/rijndael-128.c
 CC mcrypt/rijndael-192.c
 CC mcrypt/rijndael-256.c
 CC mcrypt/stream.c
 CC mcrypt/tripledes.c
OBJS utils/os_divers.o utils/os_file.o utils/list.o utils/bitstream.o utils/error.o utils/alloc.o utils/url.o utils/configfile.o  utils/sha1.o  utils/base_encoding.o utils/os_net.o utils/os_thread.o utils/os_config_init.o utils/cache.o utils/downloader.o utils/xml_parser.o utils/utf.o utils/token.o utils/color.o  utils/os_module.o utils/math.o utils/path2d.o utils/path2d_stroker.o utils/module.o utils/uni_bidi.o utils/ringbuffer.o utils/unicode.o utils/map.o   mcrypt/cbc.o mcrypt/cfb.o mcrypt/ctr.o mcrypt/des.o mcrypt/ecb.o mcrypt/g_crypt.o mcrypt/ncfb.o mcrypt/nofb.o mcrypt/ofb.o mcrypt/rijndael-128.o mcrypt/rijndael-192.o mcrypt/rijndael-256.o mcrypt/stream.o mcrypt/tripledes.o  scenegraph/base_scenegraph.o scenegraph/mpeg4_animators.o scenegraph/commands.o scenegraph/mpeg4_nodes.o scenegraph/mpeg4_valuator.o scenegraph/vrml_interpolators.o scenegraph/vrml_proto.o scenegraph/vrml_route.o scenegraph/vrml_script.o scenegraph/vrml_smjs.o scenegraph/vrml_tools.o scenegraph/x3d_nodes.o scenegraph/svg_attributes.o scenegraph/svg_types.o scenegraph/svg_smjs.o scenegraph/smil_anim.o scenegraph/smil_timing.o scenegraph/svg_properties.o scenegraph/dom_events.o  scenegraph/dom_smjs.o scenegraph/xbl_process.o scenegraph/xml_ns.o scenegraph/html5_media_smjs.o scenegraph/html5_mse_smjs.o scenegraph/webvtt_smjs.o ietf/rtcp.o ietf/rtp.o ietf/rtp_packetizer.o ietf/rtp_pck_3gpp.o ietf/rtp_pck_mpeg12.o ietf/rtp_pck_mpeg4.o ietf/rtsp_command.o ietf/rtsp_common.o ietf/rtsp_response.o ietf/rtsp_session.o ietf/sdp.o ietf/rtp_depacketizer.o ietf/rtp_streamer.o bifs/arith_decoder.o bifs/bifs_codec.o bifs/bifs_node_tables.o bifs/com_dec.o bifs/com_enc.o bifs/conditional.o bifs/field_decode.o bifs/field_encode.o bifs/memory_decoder.o bifs/predictive_mffield.o bifs/quantize.o bifs/script_dec.o bifs/script_enc.o bifs/unquantize.o isomedia/avc_ext.o isomedia/box_code_3gpp.o isomedia/box_code_apple.o isomedia/box_code_base.o isomedia/box_code_drm.o isomedia/box_code_meta.o isomedia/box_dump.o isomedia/box_funcs.o isomedia/data_map.o isomedia/drm_sample.o isomedia/isom_intern.o isomedia/isom_read.o isomedia/isom_store.o isomedia/isom_write.o isomedia/media.o isomedia/media_odf.o isomedia/meta.o isomedia/movie_fragments.o isomedia/sample_descs.o isomedia/stbl_read.o isomedia/stbl_write.o isomedia/track.o isomedia/tx3g.o isomedia/iff.o    isomedia/hint_track.o isomedia/hinting.o isomedia/box_code_adobe.o isomedia/ttml.o odf/desc_private.o odf/descriptors.o odf/odf_code.o odf/odf_codec.o odf/odf_command.o odf/qos.o odf/slc.o  odf/ipmpx_code.o odf/oci_codec.o  odf/ipmpx_dump.o odf/ipmpx_parse.o odf/odf_dump.o odf/odf_parse.o media_tools/isom_tools.o media_tools/dash_segmenter.o media_tools/av_parsers.o media_tools/img.o media_tools/media_import.o media_tools/mpegts.o media_tools/m3u8.o media_tools/mpd.o media_tools/dash_client.o  media_tools/media_export.o media_tools/m2ts_mux.o media_tools/filestreamer.o media_tools/avilib.o media_tools/mpeg2_ps.o media_tools/gpac_ogg.o media_tools/ismacryp.o media_tools/isom_hinter.o media_tools/saf.o media_tools/vobsub.o media_tools/text_import.o media_tools/html5_media.o media_tools/html5_mse.o media_tools/webvtt.o  scene_manager/scene_manager.o scene_manager/text_to_bifs.o scene_manager/loader_bt.o scene_manager/loader_xmt.o scene_manager/loader_isom.o scene_manager/loader_qt.o scene_manager/loader_svg.o  scene_manager/swf_parse.o scene_manager/swf_bifs.o scene_manager/swf_svg.o  scene_manager/scene_dump.o scene_manager/scene_stats.o scene_manager/scene_engine.o  scene_manager/encode_isom.o terminal/channel.o terminal/clock.o terminal/decoder.o terminal/term_node_init.o terminal/input_sensor.o terminal/media_control.o terminal/media_manager.o terminal/media_memory.o terminal/media_object.o terminal/media_sensor.o terminal/mpeg4_inline.o terminal/network_service.o terminal/object_browser.o terminal/object_manager.o terminal/scene.o terminal/terminal.o terminal/svg_external.o compositor/audio_input.o compositor/audio_mixer.o compositor/audio_render.o compositor/bindable.o compositor/camera.o compositor/compositor.o compositor/compositor_2d.o compositor/compositor_3d.o compositor/compositor_node_init.o compositor/drawable.o compositor/events.o compositor/font_engine.o compositor/hc_flash_shape.o compositor/hardcoded_protos.o compositor/mesh.o compositor/mesh_collide.o compositor/mesh_tesselate.o compositor/mpeg4_animstream.o compositor/mpeg4_audio.o compositor/mpeg4_background.o compositor/mpeg4_background2d.o compositor/mpeg4_bitmap.o compositor/mpeg4_composite.o compositor/mpeg4_form.o compositor/mpeg4_geometry_2d.o compositor/mpeg4_geometry_3d.o compositor/mpeg4_geometry_ifs2d.o compositor/mpeg4_geometry_ils2d.o compositor/mpeg4_gradients.o compositor/mpeg4_grouping.o compositor/mpeg4_grouping_2d.o compositor/mpeg4_grouping_3d.o compositor/mpeg4_layer_2d.o compositor/mpeg4_layer_3d.o compositor/mpeg4_layout.o compositor/mpeg4_lighting.o compositor/mpeg4_path_layout.o compositor/mpeg4_sensors.o compositor/mpeg4_sound.o compositor/mpeg4_text.o compositor/mpeg4_textures.o compositor/mpeg4_timesensor.o compositor/mpeg4_viewport.o compositor/navigate.o compositor/offscreen_cache.o compositor/svg_base.o compositor/svg_filters.o compositor/svg_font.o compositor/svg_geometry.o compositor/svg_grouping.o compositor/svg_media.o compositor/svg_paint_servers.o compositor/svg_text.o compositor/texturing.o compositor/texturing_gl.o compositor/visual_manager.o compositor/visual_manager_2d.o compositor/visual_manager_2d_draw.o compositor/visual_manager_3d.o compositor/visual_manager_3d_gl.o compositor/x3d_geometry.o laser/lsr_enc.o laser/lsr_dec.o laser/lsr_tables.o
LIBS -lm -L/usr/local/lib -lGL -lGLU -lX11  -lz -lssl -lcrypto -lmozjs185 -lplds4 -lplc4 -lnspr4   -ljpeg -lpng -lpthread -ldl
mv ../bin/gcc/libgpac.so ../bin/gcc/libgpac.so.6.0.0
ln -sf libgpac.so.6.0.0 ../bin/gcc/libgpac.so.6
ln -sf libgpac.so.6.0.0 ../bin/gcc/libgpac.so
make[1]: Leaving directory

     /home/vmg/gpac/src’
     make -C applications all
     make[1] : Entering directory

     /home/vmg/gpac/applications'
set -e; for i in  mp4client  mp4box  mp42ts  dashcast ; do make -C $i all; done
make[2]: Entering directory

     /home/vmg/gpac/applications/mp4client’
     make[2] : Leaving directory

     /home/vmg/gpac/applications/mp4client'
make[2]: Entering directory

     /home/vmg/gpac/applications/mp4box’
     make[2] : Leaving directory

     /home/vmg/gpac/applications/mp4box'
make[2]: Entering directory

     /home/vmg/gpac/applications/mp42ts’
     make[2] : Leaving directory

     /home/vmg/gpac/applications/mp42ts'
make[2]: Entering directory

     /home/vmg/gpac/applications/dashcast’
     CC audio_decoder.c
     audio_decoder.c : In function ‘dc_audio_decoder_read’ :
     audio_decoder.c:276:48 : error : ‘AVFrame’ has no member named ‘channels’
     int num_channels = audio_input_data->aframe->channels ;
     ^
     make[2] : * [audio_decoder.o] Error 1
     make[2] : Leaving directory

     /home/vmg/gpac/applications/dashcast'
make[1]: *** [apps] Error 2
make[1]: Leaving directory

     /home/vmg/gpac/applications’
     make : * [all] Error 2

  Regarding to ffmpeg-libraries :

  ffmpeg version N-74748-gbaeb8f5 Copyright (c) 2000-2015 the FFmpeg developers
  
  built with gcc 4.8 (Ubuntu 4.8.4-2ubuntu1~14.04)
  
  configuration: --extra-libs=-ldl --prefix=/opt/ffmpeg --enable-avresample --disable-debug --enable-nonfree --enable-gpl --enable-version3 --enable-libopencore-amrnb --enable-libopencore-amrwb --disable-decoder=amrnb --disable-decoder=amrwb --enable-libpulse --enable-libdcadec --enable-libfreetype --enable-libx264 --enable-libx265 --enable-libfdk-aac --enable-libvorbis --enable-libmp3lame --enable-libopus --enable-libvpx --enable-libspeex --enable-libass --enable-avisynth --enable-libsoxr --enable-libxvid --enable-libvo-aacenc --enable-libvidstab
  
  libavutil      54. 31.100 / 54. 31.100
  
  libavcodec     56. 59.100 / 56. 59.100
  
  libavformat    56. 40.101 / 56. 40.101
  
  libavdevice    56.  4.100 / 56.  4.100
  
  libavfilter     5. 40.100 /  5. 40.100
  
  libavresample   2.  1.  0 /  2.  1.  0
  
  libswscale      3.  1.101 /  3.  1.101
  
  libswresample   1.  2.101 /  1.  2.101
  
  libpostproc    53.  3.100 / 53.  3.100

  I don’t know if the error is due to some incompatibility with the libraries or if I must uninstall the previous GPAC (I don’t know how to make it because there is no uninstall script).

  I will appreciate any help.
  Thank you !

• AWS Lambda : ffmpeg thumbnails Generator : empty JPG

  3 septembre 2020, par Magikey

  When a video is uploaded on S3 i want to store a JPG screenshot.

  



  On a lambda function with amazon AWS, i do :

  



  ...

  let tmpFile = createWriteStream(`/tmp/screenshot.jpg`)

  var ffmpeg = spawn(ffmpegPath, [
      "-ss","00:00:05",
      "-i", target,
      "-vf", "thumbnail,scale=200:200", 
      "-qscale:v" ,"2",
      "-frames:v", "1",
      "-f", "image2",
      "-c:v", "mjpeg",
      "pipe:1"
    ]);

  ffmpeg.stdout.pipe(tmpFile).on("error", err => {
      console.log("Error A: ",err);
    });

  ffmpeg.on('error', err => {
    console.log("Error B", err)
    reject()
  })

  ffmpeg.on('close', code => {
    tmpFile.end();
    console.log('Log A', ffmpeg);

    child_process.exec("echo `ls -l -R /tmp`",
      (error, stdout, stderr) => {
        console.log(stdout)
    });

    resolve()
  })
...


  



  But the result is an empty JPG file in S3.

  



  Logs shows no errors, my "target" is OK, stdout ls show me the empty JPG file.

  



  I have try a lot of things, like use other version of ffmpeg but same.

  



  There is the "console.log('Log A', ffmpeg)" :

  



  ChildProcess {
 _events: [Object: null prototype] { error: [Function], close: [Function] },
 _eventsCount: 2,
 _maxListeners: undefined,
 _closesNeeded: 3,
 _closesGot: 3,
 connected: false,
 signalCode: 'SIGSEGV',
 exitCode: null,
 killed: false,
 spawnfile: '/opt/nodejs/ffmpeg',
 _handle: null,
 spawnargs: [
   '/opt/nodejs/ffmpeg',
   '-ss',
   '00:00:05',
   '-i',
   'https://xxxxxxxxx',
   '-vf',
   'thumbnail,scale=200:200',
   '-qscale:v',
   '2',
   '-frames:v',
   '1',
   '-f',
   'image2',
   '-v',
   '16',
   '-c:v',
   'mjpeg',
   'pipe:1'
 ],
 pid: 24,
 stdin: Socket {
   connecting: false,
   _hadError: false,
   _parent: null,
   _host: null,
   _readableState: ReadableState {
     objectMode: false,
     highWaterMark: 16384,
     buffer: BufferList { head: null, tail: null, length: 0 },
     length: 0,
     pipes: null,
     pipesCount: 0,
     flowing: null,
     ended: false,
     endEmitted: false,
     reading: false,
     sync: true,
     needReadable: false,
     emittedReadable: false,
     readableListening: false,
     resumeScheduled: false,
     paused: true,
     emitClose: false,
     autoDestroy: false,
     destroyed: true,
     defaultEncoding: 'utf8',
     awaitDrain: 0,
     readingMore: false,
     decoder: null,
     encoding: null
   },
   readable: false,
   _events: [Object: null prototype] { end: [Function: onReadableStreamEnd] },
   _eventsCount: 1,
   _maxListeners: undefined,
   _writableState: WritableState {
     objectMode: false,
     highWaterMark: 16384,
     finalCalled: false,
     needDrain: false,
     ending: false,
     ended: false,
     finished: false,
     destroyed: true,
     decodeStrings: false,
     defaultEncoding: 'utf8',
     length: 0,
     writing: false,
     corked: 0,
     sync: true,
     bufferProcessing: false,
     onwrite: [Function: bound onwrite],
     writecb: null,
     writelen: 0,
     bufferedRequest: null,
     lastBufferedRequest: null,
     pendingcb: 0,
     prefinished: false,
     errorEmitted: false,
     emitClose: false,
     autoDestroy: false,
     bufferedRequestCount: 0,
     corkedRequestsFree: [Object]
   },
   writable: false,
   allowHalfOpen: false,
   _sockname: null,
   _pendingData: null,
   _pendingEncoding: '',
   server: null,
   _server: null,
   [Symbol(asyncId)]: 5,
   [Symbol(kHandle)]: null,
   [Symbol(lastWriteQueueSize)]: 0,
   [Symbol(timeout)]: null,
   [Symbol(kBuffer)]: null,
   [Symbol(kBufferCb)]: null,
   [Symbol(kBufferGen)]: null,
   [Symbol(kBytesRead)]: 0,
   [Symbol(kBytesWritten)]: 0
 },
 stdout: Socket {
   connecting: false,
   _hadError: false,
   _parent: null,
   _host: null,
   _readableState: ReadableState {
     objectMode: false,
     highWaterMark: 16384,
     buffer: BufferList { head: null, tail: null, length: 0 },
     length: 0,
     pipes: null,
     pipesCount: 0,
     flowing: false,
     ended: true,
     endEmitted: true,
     reading: false,
     sync: false,
     needReadable: false,
     emittedReadable: false,
     readableListening: false,
     resumeScheduled: false,
     paused: false,
     emitClose: false,
     autoDestroy: false,
     destroyed: true,
     defaultEncoding: 'utf8',
     awaitDrain: 0,
     readingMore: false,
     decoder: null,
     encoding: null
   },
   readable: false,
   _events: [Object: null prototype] {
     end: [Function: onReadableStreamEnd],
     close: [Function]
   },
   _eventsCount: 2,
   _maxListeners: undefined,
   _writableState: WritableState {
     objectMode: false,
     highWaterMark: 16384,
     finalCalled: false,
     needDrain: false,
     ending: false,
     ended: false,
     finished: false,
     destroyed: true,
     decodeStrings: false,
     defaultEncoding: 'utf8',
     length: 0,
     writing: false,
     corked: 0,
     sync: true,
     bufferProcessing: false,
     onwrite: [Function: bound onwrite],
     writecb: null,
     writelen: 0,
     bufferedRequest: null,
     lastBufferedRequest: null,
     pendingcb: 0,
     prefinished: false,
     errorEmitted: false,
     emitClose: false,
     autoDestroy: false,
     bufferedRequestCount: 0,
     corkedRequestsFree: [Object]
   },
   writable: false,
   allowHalfOpen: false,
   _sockname: null,
   _pendingData: null,
   _pendingEncoding: '',
   server: null,
   _server: null,
   write: [Function: writeAfterFIN],
   [Symbol(asyncId)]: 6,
   [Symbol(kHandle)]: null,
   [Symbol(lastWriteQueueSize)]: 0,
   [Symbol(timeout)]: null,
   [Symbol(kBuffer)]: null,
   [Symbol(kBufferCb)]: null,
   [Symbol(kBufferGen)]: null,
   [Symbol(kBytesRead)]: 0,
   [Symbol(kBytesWritten)]: 0
 },
 stderr: Socket {
   connecting: false,
   _hadError: false,
   _parent: null,
   _host: null,
   _readableState: ReadableState {
     objectMode: false,
     highWaterMark: 16384,
     buffer: BufferList { head: null, tail: null, length: 0 },
     length: 0,
     pipes: null,
     pipesCount: 0,
     flowing: null,
     ended: true,
     endEmitted: true,
     reading: false,
     sync: false,
     needReadable: false,
     emittedReadable: false,
     readableListening: false,
     resumeScheduled: false,
     paused: true,
     emitClose: false,
     autoDestroy: false,
     destroyed: true,
     defaultEncoding: 'utf8',
     awaitDrain: 0,
     readingMore: false,
     decoder: null,
     encoding: null
   },
   readable: false,
   _events: [Object: null prototype] {
     end: [Function: onReadableStreamEnd],
     close: [Function]
   },
   _eventsCount: 2,
   _maxListeners: undefined,
   _writableState: WritableState {
     objectMode: false,
     highWaterMark: 16384,
     finalCalled: false,
     needDrain: false,
     ending: false,
     ended: false,
     finished: false,
     destroyed: true,
     decodeStrings: false,
     defaultEncoding: 'utf8',
     length: 0,
     writing: false,
     corked: 0,
     sync: true,
     bufferProcessing: false,
     onwrite: [Function: bound onwrite],
     writecb: null,
     writelen: 0,
     bufferedRequest: null,
     lastBufferedRequest: null,
     pendingcb: 0,
     prefinished: false,
     errorEmitted: false,
     emitClose: false,
     autoDestroy: false,
     bufferedRequestCount: 0,
     corkedRequestsFree: [Object]
   },
   writable: false,
   allowHalfOpen: false,
   _sockname: null,
   _pendingData: null,
   _pendingEncoding: '',
   server: null,
   _server: null,
   write: [Function: writeAfterFIN],
   [Symbol(asyncId)]: 7,
   [Symbol(kHandle)]: null,
   [Symbol(lastWriteQueueSize)]: 0,
   [Symbol(timeout)]: null,
   [Symbol(kBuffer)]: null,
   [Symbol(kBufferCb)]: null,
   [Symbol(kBufferGen)]: null,
   [Symbol(kBytesRead)]: 0,
   [Symbol(kBytesWritten)]: 0
 },
 stdio: [
   Socket {
     connecting: false,
     _hadError: false,
     _parent: null,
     _host: null,
     _readableState: [ReadableState],
     readable: false,
     _events: [Object: null prototype],
     _eventsCount: 1,
     _maxListeners: undefined,
     _writableState: [WritableState],
     writable: false,
     allowHalfOpen: false,
     _sockname: null,
     _pendingData: null,
     _pendingEncoding: '',
     server: null,
     _server: null,
     [Symbol(asyncId)]: 5,
     [Symbol(kHandle)]: null,
     [Symbol(lastWriteQueueSize)]: 0,
     [Symbol(timeout)]: null,
     [Symbol(kBuffer)]: null,
     [Symbol(kBufferCb)]: null,
     [Symbol(kBufferGen)]: null,
     [Symbol(kBytesRead)]: 0,
     [Symbol(kBytesWritten)]: 0
   },
   Socket {
     connecting: false,
     _hadError: false,
     _parent: null,
     _host: null,
     _readableState: [ReadableState],
     readable: false,
     _events: [Object: null prototype],
     _eventsCount: 2,
     _maxListeners: undefined,
     _writableState: [WritableState],
     writable: false,
     allowHalfOpen: false,
     _sockname: null,
     _pendingData: null,
     _pendingEncoding: '',
     server: null,
     _server: null,
     write: [Function: writeAfterFIN],
     [Symbol(asyncId)]: 6,
     [Symbol(kHandle)]: null,
     [Symbol(lastWriteQueueSize)]: 0,
     [Symbol(timeout)]: null,
     [Symbol(kBuffer)]: null,
     [Symbol(kBufferCb)]: null,
     [Symbol(kBufferGen)]: null,
     [Symbol(kBytesRead)]: 0,
     [Symbol(kBytesWritten)]: 0
   },
   Socket {
     connecting: false,
     _hadError: false,
     _parent: null,
     _host: null,
     _readableState: [ReadableState],
     readable: false,
     _events: [Object: null prototype],
     _eventsCount: 2,
     _maxListeners: undefined,
     _writableState: [WritableState],
     writable: false,
     allowHalfOpen: false,
     _sockname: null,
     _pendingData: null,
     _pendingEncoding: '',
     server: null,
     _server: null,
     write: [Function: writeAfterFIN],
     [Symbol(asyncId)]: 7,
     [Symbol(kHandle)]: null,
     [Symbol(lastWriteQueueSize)]: 0,
     [Symbol(timeout)]: null,
     [Symbol(kBuffer)]: null,
     [Symbol(kBufferCb)]: null,
     [Symbol(kBufferGen)]: null,
     [Symbol(kBytesRead)]: 0,
     [Symbol(kBytesWritten)]: 0
   }
 ]
} ```