Hi, On 11/1/18, Marcus Lim <[email protected]> wrote: > Hey all, > New to the list and trying to get my head around ffmpeg a bit still. > So I am using ffmpeg to create slideshows out of individual images, with an > audio backing track (usually mp3), and then encoding as MP4 (video is h264 > and audio is acc), but for some reason the process is taking up to 1.4Gb of > memory which is blowing me away. > Now I am using a complex filter to achieve this, with multiple inputs, and > example of my command is below: > > ffmpeg \ > -loop 1 -t 4 -i > test/ed141148-9b79-494b-a26d-f5c84535eeaf8912937006552540487.tmp \ > -loop 1 -t 4 -i > test/ed141148-9b79-494b-a26d-f5c84535eeaf5351513282402727883.tmp \ > -loop 1 -t 4 -i > test/ed141148-9b79-494b-a26d-f5c84535eeaf9204204500598689609.tmp \ > -loop 1 -t 4 -i > test/ed141148-9b79-494b-a26d-f5c84535eeaf1241593939921003895.tmp \ > -loop 1 -t 4 -i > test/ed141148-9b79-494b-a26d-f5c84535eeaf6231405065182432206.tmp \ > -loop 1 -t 4 -i > test/ed141148-9b79-494b-a26d-f5c84535eeaf4783563520441940155.tmp \ > -loop 1 -t 4 -i > test/ed141148-9b79-494b-a26d-f5c84535eeaf823726872837129805.tmp \ > -loop 1 -t 4 -i > test/ed141148-9b79-494b-a26d-f5c84535eeaf4148893068919936811.tmp \ > -loop 1 -t 4 -i > test/ed141148-9b79-494b-a26d-f5c84535eeaf6815991692415841819.tmp \ > -loop 1 -t 4 -i > test/ed141148-9b79-494b-a26d-f5c84535eeaf553287365250808111.tmp \ > -loop 1 -t 4 -i > test/ed141148-9b79-494b-a26d-f5c84535eeaf6763129487770212040.tmp \ > -loop 1 -t 4 -i > test/ed141148-9b79-494b-a26d-f5c84535eeaf4160943340255327277.tmp \ > -loop 1 -t 4 -i > test/ed141148-9b79-494b-a26d-f5c84535eeaf8834606975865492644.tmp \ > -loop 1 -t 4 -i > test/ed141148-9b79-494b-a26d-f5c84535eeaf9160476045329137307.tmp \ > -loop 1 -t 4 -i > test/ed141148-9b79-494b-a26d-f5c84535eeaf8917976550433767102.tmp \ > -stream_loop -1 -t 60 -i > test/ed141148-9b79-494b-a26d-f5c84535eeaf6379741644027890621.tmp \ > -filter_complex \ > "[0:v]scale=1080:1080:force_original_aspect_ratio=decrease,pad=1080:1080:(ow-iw)/2:(oh-ih)/2,setsar=1[v0];\ > [1:v]scale=1080:1080:force_original_aspect_ratio=decrease,pad=1080:1080:(ow-iw)/2:(oh-ih)/2,setsar=1[v1];\ > [2:v]scale=1080:1080:force_original_aspect_ratio=decrease,pad=1080:1080:(ow-iw)/2:(oh-ih)/2,setsar=1[v2];\ > [3:v]scale=1080:1080:force_original_aspect_ratio=decrease,pad=1080:1080:(ow-iw)/2:(oh-ih)/2,setsar=1[v3];\ > [4:v]scale=1080:1080:force_original_aspect_ratio=decrease,pad=1080:1080:(ow-iw)/2:(oh-ih)/2,setsar=1[v4];\ > [5:v]scale=1080:1080:force_original_aspect_ratio=decrease,pad=1080:1080:(ow-iw)/2:(oh-ih)/2,setsar=1[v5];\ > [6:v]scale=1080:1080:force_original_aspect_ratio=decrease,pad=1080:1080:(ow-iw)/2:(oh-ih)/2,setsar=1[v6];\ > [7:v]scale=1080:1080:force_original_aspect_ratio=decrease,pad=1080:1080:(ow-iw)/2:(oh-ih)/2,setsar=1[v7];\ > [8:v]scale=1080:1080:force_original_aspect_ratio=decrease,pad=1080:1080:(ow-iw)/2:(oh-ih)/2,setsar=1[v8];\ > [9:v]scale=1080:1080:force_original_aspect_ratio=decrease,pad=1080:1080:(ow-iw)/2:(oh-ih)/2,setsar=1[v9];\ > [10:v]scale=1080:1080:force_original_aspect_ratio=decrease,pad=1080:1080:(ow-iw)/2:(oh-ih)/2,setsar=1[v10];\ > [11:v]scale=1080:1080:force_original_aspect_ratio=decrease,pad=1080:1080:(ow-iw)/2:(oh-ih)/2,setsar=1[v11];\ > [12:v]scale=1080:1080:force_original_aspect_ratio=decrease,pad=1080:1080:(ow-iw)/2:(oh-ih)/2,setsar=1[v12];\ > [13:v]scale=1080:1080:force_original_aspect_ratio=decrease,pad=1080:1080:(ow-iw)/2:(oh-ih)/2,setsar=1[v13];\ > [14:v]scale=1080:1080:force_original_aspect_ratio=decrease,pad=1080:1080:(ow-iw)/2:(oh-ih)/2,setsar=1[v14];\ > [v0][v1][v2][v3][v4][v5][v6][v7][v8][v9][v10][v11][v12][v13][v14]concat=n=15:v=1:a=0,format=yuv420p[v]" > -map "[v]" -map 15:a test/fcd2b1a9-f3c8-4cdc-8355-51c08b088ee3.mp4 > > Each loop is on a 4Mb Jpeg, and the stream_loop was the only way I could > figure out to get the audio track to loop in the background, which is about > 4Mb as well. > > I'm kinda stumped as to why this would be with my limited understanding of > ffmpeg, I have some theories surrounding the -loop filling memory with > copies of the img in a lossless format but any help would be most welcome.
Full uncut ffmpeg ouput missing. I bet you are using too old version, which have bug regarding using too much memory. _______________________________________________ ffmpeg-user mailing list [email protected] http://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email [email protected] with subject "unsubscribe".
