white speaker icon, Computer Icons Sound Symbol, audio transparent background PNG clipart size: 512x512px filesize: 24.86KB.Wireless microphone Silhouette, microphone transparent background PNG clipart size: 512x512px filesize: 6.31KB.Music, Sound, Acoustic Wave, Digital Audio, Acoustics, Music Download, Wave Vector, Line transparent background PNG clipart size: 1280圆40px filesize: 80.31KB.green spiral illustration, Radio wave Sound, green background transparent background PNG clipart size: 1920x503px filesize: 703.31KB.Computer Icons WAV Audio signal, sound wave transparent background PNG clipart size: 1600x1600px filesize: 12.32KB.Sine wave Function Alternating current, wave transparent background PNG clipart size: 770x578px filesize: 13KB.Sound Wave, Sound Wave HD transparent background PNG clipart size: 2261x1208px filesize: 98.44KB.Loudspeaker enclosure Stereophonic sound Amplifier Subwoofer, Music speakers, three black speakers transparent background PNG clipart size: 1000x750px filesize: 328.67KB.Monochrome Black and white Desktop Pattern, rays transparent background PNG clipart size: 2548x2550px filesize: 589.06KB.multicolored graph, , rainbow sound wave curve transparent background PNG clipart size: 4460x2635px filesize: 252.15KB.Microphone Waveform Sound, noise transparent background PNG clipart size: 512x512px filesize: 26.77KB.Audio signal WAV Computer Icons Sound Audio file format, sound wave transparent background PNG clipart size: 1600x1600px filesize: 23.85KB.Waveform Sound, music sound waves transparent background PNG clipart size: 512x512px filesize: 3.52KB.Computer Icons Sound Wave Oscillation, sound wave transparent background PNG clipart size: 1200x1200px filesize: 24.31KB.Sound Recording and Reproduction Acoustic wave Music, wave transparent background PNG clipart size: 512x512px filesize: 8.21KB.Radio wave Radio frequency, wifi logo transparent background PNG clipart size: 1024x862px filesize: 33.31KB.Sound Wave Music, sound wave transparent background PNG clipart size: 1748x1764px filesize: 103.94KB.Acoustic wave Computer Icons Art of Sound Engineering, wave transparent background PNG clipart size: 512x512px filesize: 7.66KB.signal, Radio wave Electromagnetic radiation, Sound wave transparent background PNG clipart size: 750x555px filesize: 159.59KB.Sound Computer Icons WAV Audio file format, audio speakers transparent background PNG clipart size: 1920x1080px filesize: 75.01KB.Music Sound Acoustic wave Light, wave design transparent background PNG clipart size: 770x360px filesize: 237.15KB.Acoustic wave Sound Hearing, pearl harbour transparent background PNG clipart size: 1280圆40px filesize: 143.92KB.Microphone Computer Icons Sound Recording and Reproduction Recording studio, recording studio transparent background PNG clipart size: 512x512px filesize: 6.02KB.sound waves, Acoustic wave Computer Icons, Sound wave transparent background PNG clipart size: 512x512px filesize: 3.52KB.Waves Audio Sound Acoustic wave, wave transparent background PNG clipart size: 2048x2048px filesize: 167.64KB.Sound Wave Music, Sound wave transparent background PNG clipart size: 1355x500px filesize: 52.64KB.round black burst, Sound Wave Audio frequency Compact Cassette, Sound wave transparent background PNG clipart size: 2302x2248px filesize: 231.05KB.Acoustic wave Computer Icons Sound, sound wave transparent background PNG clipart size: 1024x1024px filesize: 5.49KB.One of the -map arguments has now been changed to use (the output from the overlay filter) instead of (just the colorkeyed showwaves output) as the video source in your output.overlay is taking the still-image video as well as the video stream we just generated from showwaves and named and overlaying them so that the image in shows through the transparent parts we've keyed out in.scale=1280:-1 to scale one dimension to 1280 and scale the other proportionally keeping the aspect ratio. scale=1280:720 takes the video from input #1, scales it to match our showwaves size, and names the output (background).format=yuva420p is needed to convert both video streams to the same pixel format.colorkey=0x000000:0.01:0.1 is going to take any black in the video generated by showwaves and make it transparent.Try something like: ffmpeg -i $audio -i $picture -filter_complex "showwaves=s=1280x720:mode=line,colorkey=0x000000:0.01:0.1,format=yuva420p scale=1280:720 overlay" -map "" -map 0:a -c:v libx264 -c:a copy output.mkvīreaking down the differences from your starting point: You need to add your image as another input, and then you can use something like the colorkey filter to make the showwaves visualization's background transparent and the overlay filter to blend the showwaves visualization and your background image.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |