FFmpeg: Wie kann ich mehrere Audiodateien einstellen?

Ich möchte dem Ausgangsvideo mehrere Audiodateien hinzufügen (in einem Stream zusammenführen). Jedes Audio hat seine eigene Dauer und seinen Start- / Endpunkt. Ich habe ein Bild gezeichnet, um zu erklären, was ich erreichen möchte.

Ich habe versucht, apadund adeleyzu verwenden, aber das Ausgabeergebnis war nicht korrekt. Einige Audios fehlen oder werden nicht zum richtigen Zeitpunkt gestartet.
Hier sind meine filter_complexBefehle ( apad and adelayParameter sind nicht immer 0.0).

-filter_komplex [1]Volumen = 0.0dB, aformat = sample_fmts = s16p: sample_rates = 44100: channel_layouts = stereo [a1]; [a1] Adelay = 0,0 | 0,0, apad [b1]; [2] volume = 0.0dB, aformat = sample_fmts = s16p: sample_rates = 44100: channel_layouts = stereo [a2]; [a2] Adelay = 0,0 | 0,0 [b2]; [3] volume = 0.0dB, aformat = sample_fmts = s16p: sample_rates = 44100: channel_layouts = stereo [a3]; [a3] Adelay = 0,0 | 0,0, apad [b3]; [4] volume = 0.0dB, aformat = sample_fmts = s16p: sample_rates = 44100: channel_layouts = stereo [a4]; [a4] Adelay = 0,0 | 0,0, apad [b4]; [5] volume = 0.0dB, aformat = sample_fmts = s16p: sample_rates = 44100: channel_layouts = stereo [a5]; [a5] Adelay = 0,0 | 0,0, apad [b5]; [6] volume = 0.0dB, aformat = sample_fmts = s16p: sample_rates = 44100: channel_layouts = stereo [a6]; [a6] Adelay = 0,0 | 0,0, apad [b6]; [7] volume = 0.0dB, aformat = sample_fmts = s16p: sample_rates = 44100: channel_layouts = stereo [a7]; [a7] Adelay = 0,0 | 0,0, apad [b7]; [8] Volumen = 0,0 dB, aformat = sample_fmts = s16p: sample_rates = 44100: channel_layouts = stereo [a8]; [a8] Adelay = 0,0 | 0,0, apad [b8]; [9] volume = 0.0dB, aformat = sample_fmts = s16p: sample_rates = 44100: channel_layouts = stereo [a9]; [a9] Adelay = 0,0 | 0,0, apad [b9]; [10] volume = 0.0dB, aformat = sample_fmts = s16p: sample_rates = 44100: channel_layouts = stereo [a10]; [a10] Adelay = 0,0 | 0,0, apad [b10]; [11] volume = 0.0dB, aformat = sample_fmts = s16p: sample_rates = 44100: channel_layouts = stereo [a11]; [a11] Adelay = 0,0 | 0,0, apad [b11]; [12] volume = 0.0dB, aformat = sample_fmts = s16p: sample_rates = 44100: channel_layouts = stereo [a12]; [a12] Adelay = 0,0 | 0,0, apad [b12]; [13] volume = 0.0dB, aformat = sample_fmts = s16p: sample_rates = 44100: channel_layouts = stereo [a13]; [a13] Adelay = 0,0 | 0,0, apad [b13]; [14] volume = 0.0dB, aformat = sample_fmts = s16p: sample_rates = 44100: channel_layouts = stereo [a14]; [a14] Adelay = 0,0 | 0,0, apad [b14]; [15] Volumen = 0,0 dB, aformat = sample_fmts = s16p: sample_rates = 44100: channel_layouts = stereo [a15]; [a15] Adelay = 0,0 | 0,0, apad [b15]; [16] volume = 0.0dB, aformat = sample_fmts = s16p: sample_rates = 44100: channel_layouts = stereo [a16]; [a16] Adelay = 0,0 | 0,0, apad [b16]; [17] volume = 0.0dB, aformat = sample_fmts = s16p: sample_rates = 44100: channel_layouts = stereo [a17]; [a17] Adelay = 0,0 | 0,0, apad [b17]; [18] volume = 0.0dB, aformat = sample_fmts = s16p: sample_rates = 44100: channel_layouts = stereo [a18]; [a18] Adelay = 0,0 | 0,0, apad [b18]; [19] volume = 0.0dB, aformat = sample_fmts = s16p: sample_rates = 44100: channel_layouts = stereo [a19]; [a19] Adelay = 0,0 | 0,0, apad [b19]; [20] volume = 0.0dB, aformat = sample_fmts = s16p: sample_rates = 44100: channel_layouts = stereo [a20]; [a20] Adelay = 0,0 | 0,0, apad [b20]; [b1] [b2] [b3] [b4] [b5] [b6] [b7] [b8] [b9] [b10] [b11] [b12] [b13] [b14] [b15] [b16] [b16] ] [b18] [b19] [b20] amerge = 20 [a] -map 0: v -map [a] -b: v 3200k -c: