Tôi đang chuyển mã một tệp có thời lượng 1:42:92 bằng cách sử dụng đường ống ffmpeg. Tệp đầu ra bị cắt ngắn (thời lượng của nó là 30 giây) mà không có bất kỳ cảnh báo nào về tệp đầu ra ngắn hơn đầu vào. Có cách nào để thực hiện thoát ffmpeg với lỗi trong trường hợp đó không?
Đây là đường ống dẫn:
ffmpeg -i test.mp4 -y -b:a 64k -ac 2 -ar 48000 -vcodec libx264 -b:v 2000k -filter:v scale=w=1280:h=720 -maxrate 2100k -bufsize 10000k -threads 4 -movflags faststart test_hd.mp4
Tôi có thể thấy các lỗi folowing trong thiết bị xuất chuẩn:
frame= 794 fps= 24 q=23.0 q=21.0 q=23.0 q=9.0 q=0.0 q=0.0 size= 7677kB time=00:00:33.47 bitrate=1878.8kbits/s \r[h264 @ 0x76356a0] AVC: nal size 2322
Last message repeated 1 times
[h264 @ 0x76356a0] concealing 3060 DC, 3060 AC, 3060 MV errors in P frame
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x37235e0] stream 0, offset 0xfc6c7a: partial file
test.mp4: Invalid data found when processing input
frame= 806 fps= 24 q=23.0 q=21.0 q=23.0 q=10.0 q=0.0 q=0.0 size= 7802kB time=00:00:33.96 bitrate=1881.9kbits/s \r[mov,mp4,m4a,3gp,3g2,mj2 @ 0x37235e0] stream 1, offset 0xfe720d: partial file
test.mp4: Invalid data found when processing input
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x37235e0] stream 1, offset 0xfe74aa: partial file
test.mp4: Invalid data found when processing input
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x37235e0] stream 1, offset 0xfe77a5: partial file
test.mp4: Invalid data found when processing input
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x37235e0] stream 1, offset 0xfe7a11: partial file
test.mp4: Invalid data found when processing input
frame= 818 fps= 24 q=23.0 q=21.0 q=23.0 q=8.0 q=0.0 q=0.0 size= 7953kB time=00:00:33.96 bitrate=1918.2kbits/s \r[mov,mp4,m4a,3gp,3g2,mj2 @ 0x37235e0] stream 1, offset 0xfe7c7b: partial file
test.mp4: Invalid data found when processing input
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x37235e0] stream 1, offset 0xfe7ec1: partial file
test.mp4: Invalid data found when processing input
[mp4 @ 0x381fc40] Starting second pass: moving the moov atom to the beginning of the file
frame= 819 fps= 22 q=-1.0 Lq=-1.0 q=-1.0 q=-1.0 q=-0.0 q=-0.0 size= 8491kB time=00:01:42.92 bitrate= 675.9kbits/s
video:14041kB audio:668kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown
[libx264 @ 0x381eb00] frame I:5 Avg QP: 6.17 size: 53165
[libx264 @ 0x381eb00] frame P:207 Avg QP:11.84 size: 28073
[libx264 @ 0x381eb00] frame B:607 Avg QP:15.44 size: 3820
[libx264 @ 0x381eb00] consecutive B-frames: 0.9% 0.5% 1.5% 97.2%
[libx264 @ 0x381eb00] mb I I16..4: 62.8% 22.5% 14.7%
[libx264 @ 0x381eb00] mb P I16..4: 0.8% 3.1% 1.0% P16..4: 30.7% 23.4% 16.5% 0.0% 0.0% skip:24.6%
[libx264 @ 0x381eb00] mb B I16..4: 0.0% 0.1% 0.0% B16..8: 34.2% 4.8% 0.9% direct: 1.4% skip:58.6% L0:40.5% L1:50.4% BI: 9.1%
[libx264 @ 0x381eb00] 8x8 transform intra:49.5% inter:69.2%
[libx264 @ 0x381eb00] coded y,uvDC,uvAC intra: 57.1% 69.6% 59.5% inter: 12.0% 17.0% 2.2%
[libx264 @ 0x381eb00] i16 v,h,dc,p: 72% 8% 6% 14%
[libx264 @ 0x381eb00] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 17% 25% 28% 4% 5% 5% 6% 4% 6%
[libx264 @ 0x381eb00] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 24% 23% 15% 5% 8% 7% 7% 5% 6%
[libx264 @ 0x381eb00] i8c dc,h,v,p: 61% 18% 17% 5%
[libx264 @ 0x381eb00] Weighted P-Frames: Y:0.0% UV:0.0%
[libx264 @ 0x381eb00] ref P L0: 63.4% 5.6% 22.1% 8.9%
[libx264 @ 0x381eb00] ref B L0: 90.0% 8.2% 1.8%
[libx264 @ 0x381eb00] ref B L1: 94.8% 5.2%
[libx264 @ 0x381eb00] kb/s:1968.29