我对ffmpeg很新,但经过几天的搜索,我已经完全碰到了一堵砖墙.任何帮助,将不胜感激.
我的使用案例：我们的客户希望上传多个地区的视频.每个视频格式相同,1920×1080,mp4.对于每个区域,他们希望在视频结尾添加不同的图像几秒钟.此图像包含其徽标,一些其他信息和可变代码.他们将在上传的视频旁边输入此代码.图像保持不变,因此服务器上已存在.
基本上,我有一个输入视频,一个图像视频和一个小代码.我需要将此代码添加到图像的视频中(在预定义的位置),然后我需要将结果视频添加到输入视频的末尾.一旦完成,我只需要输出1920×1080和1024×576的视频.
我尝试了几件事,但连接步骤总是因操纵视频而失败.
尝试1
在我的第一次尝试中,我使用ffmpeg从图像创建视频,并在指定区域中添加文本.
ffmpeg -y -f lavfi -i image.png -r 30 -t 10 -pix_fmt yuv420p -map 0:v -vf drawtext="fontfile=HelveticaNeue.dfont: text='GLNS/TEST/1234b': fontcolor=black: fontsize=20: box=1: boxcolor=white: boxborderw=7: x=179: y=805" imageVideo.mp4
此命令创建大小正确的.mp4视频,持续时间为10秒,并在正确的位置添加文本“GLNS / TEST / 1234b”.
接下来,我使用以下命令连接两个视频.两者都具有相同的分辨率和编解码器.
ffmpeg -f concat -safe 0 -i config.txt -vf scale=1920:1080 outputHD.mp4 -vf scale=1024:576 outputSD.mp4
config.txt包含以下内容：
file my_input_file.mp4
file ImageVideo.mp4
此连接适用于常规视频.但是,当我将它与ImageVideo.mp4(由第一个命令创建的那个)一起使用时,我收到此错误日志：
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x7f86dc924600] Auto-inserting h264_mp4toannexb bitstream filtereed=0.509x
[aac @ 0x7f86dc019e00] Number of bands (31) exceeds limit (5).
Error while decoding stream #0:1: Invalid data found when processing input
[aac @ 0x7f86dc019e00] Number of bands (27) exceeds limit (8).
Error while decoding stream #0:1: Invalid data found when processing input
[h264 @ 0x7f86dd857200] Error splitting the input into NAL units.
[h264 @ 0x7f86dd829400] Invalid NAL unit size.
[h264 @ 0x7f86dd829400] Error splitting the input into NAL units.
[aac @ 0x7f86dc019e00] Number of bands (10) exceeds limit (1).
Error while decoding stream #0:1: Invalid data found when processing input
[h264 @ 0x7f86dd816800] Invalid NAL unit size.
[h264 @ 0x7f86dd816800] Error splitting the input into NAL units.
[aac @ 0x7f86dc019e00] Number of bands (24) exceeds limit (1).
Error while decoding stream #0:1: Invalid data found when processing input
#this goes on for a few hundred lines
结果输出与输入视频相同,但最后不包含所需的图像视频.
尝试2
由于上述尝试不起作用,我尝试连接我让设计师用Adobe After Effects制作图像的视频.此视频也与H264编解码器一起保存为.mp4.如果我连接输入视频和这个,我得到一个正确的结果.但是,只要我使用此命令在指定区域中添加代码：
ffmpeg -i new_image_video.mp4 -vf drawtext="fontfile=HelveticaNeue.dfont: text='GLNS/TEST/1234b': fontcolor=black: fontsize=20: box=1: boxcolor=white: boxborderw=7: x=179: y=805" -c:v libx264 imageVideo.mp4
我收到此错误：
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x7ff94c800000] Auto-inserting h264_mp4toannexb bitstream filter97x
[h264 @ 0x7ff94b053800] top block unavailable for requested intra mode -1
[h264 @ 0x7ff94b053800] error while decoding MB 0 0, bytestream 49526
[h264 @ 0x7ff94b053e00] number of reference frames (1+3) exceeds max (3; probably corrupt input), discarding one
[h264 @ 0x7ff94b053e00] chroma_log2_weight_denom 28 is out of range
[h264 @ 0x7ff94b053e00] illegal long ref in memory management control operation 2
[h264 @ 0x7ff94b053e00] cabac_init_idc 32 overflow
[h264 @ 0x7ff94b053e00] decode_slice_header error
[h264 @ 0x7ff94b053e00] no frame!
[h264 @ 0x7ff94b053800] concealing 8160 DC, 8160 AC, 8160 MV errors in I frame
[h264 @ 0x7ff94b072a00] reference overflow 22 > 15 or 0 > 15
[h264 @ 0x7ff94b072a00] decode_slice_header error
[h264 @ 0x7ff94b072a00] no frame!
[h264 @ 0x7ff94b01a400] illegal modification_of_pic_nums_idc 20
[h264 @ 0x7ff94b01a400] decode_slice_header error
[h264 @ 0x7ff94b01a400] no frame!
[h264 @ 0x7ff94b01aa00] illegal modification_of_pic_nums_idc 20
[h264 @ 0x7ff94b01aa00] decode_slice_header error
[h264 @ 0x7ff94b01aa00] no frame!
Error while decoding stream #0:0: Invalid data found when processing input
[h264 @ 0x7ff94b053800] deblocking_filter_idc 8 out of range
[h264 @ 0x7ff94b053800] decode_slice_header error
[h264 @ 0x7ff94b053800] no frame!
Error while decoding stream #0:0: Invalid data found when processing input
[h264 @ 0x7ff94b053e00] illegal memory management control operation 8
[h264 @ 0x7ff94b053e00] co located POCs unavailable
[h264 @ 0x7ff94b053e00] error while decoding MB 2 0, bytestream -35
[h264 @ 0x7ff94b053e00] concealing 8160 DC, 8160 AC, 8160 MV errors in B frame
[h264 @ 0x7ff94b072a00] number of reference frames (1+3) exceeds max (3; probably corrupt input), discarding one
# this goes on for a while...
[h264 @ 0x7ff94b01a400] concealing 4962 DC, 4962 AC, 4962 MV errors in B frame
Error while decoding stream #0:0: Invalid data found when processing input
frame= 2553 fps= 17 q=-1.0 Lsize= 26995kB time=00:01:42.16 bitrate=2164.6kbits/s dup=0 drop=60 speed=0.697x
video:25258kB audio:1661kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.285236%
[libx264 @ 0x7ff94b810400] frame I:35 Avg QP:17.45 size: 55070
[libx264 @ 0x7ff94b810400] frame P:711 Avg QP:19.73 size: 18712
[libx264 @ 0x7ff94b810400] frame B:1807 Avg QP:21.53 size: 5884
[libx264 @ 0x7ff94b810400] consecutive B-frames: 3.4% 5.0% 4.9% 86.6%
[libx264 @ 0x7ff94b810400] mb I I16..4: 38.2% 49.3% 12.5%
[libx264 @ 0x7ff94b810400] mb P I16..4: 12.4% 14.0% 1.0% P16..4: 29.6% 4.8% 1.9% 0.0% 0.0% skip:36.2%
[libx264 @ 0x7ff94b810400] mb B I16..4: 1.5% 1.2% 0.1% B16..8: 27.3% 1.6% 0.1% direct: 1.8% skip:66.4% L0:45.8% L1:51.4% BI: 2.8%
[libx264 @ 0x7ff94b810400] 8x8 transform intra:49.5% inter:85.4%
[libx264 @ 0x7ff94b810400] coded y,uvDC,uvAC intra: 21.2% 22.3% 2.5% inter: 4.6% 7.0% 0.0%
[libx264 @ 0x7ff94b810400] i16 v,h,dc,p: 23% 26% 10% 41%
[libx264 @ 0x7ff94b810400] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 31% 19% 35% 3% 3% 3% 3% 3% 2%
[libx264 @ 0x7ff94b810400] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 31% 20% 16% 5% 7% 6% 5% 5% 4%
[libx264 @ 0x7ff94b810400] i8c dc,h,v,p: 67% 16% 15% 2%
[libx264 @ 0x7ff94b810400] Weighted P-Frames: Y:7.3% UV:4.2%
[libx264 @ 0x7ff94b810400] ref P L0: 66.3% 8.7% 17.9% 7.0% 0.1%
[libx264 @ 0x7ff94b810400] ref B L0: 88.2% 10.1% 1.7%
[libx264 @ 0x7ff94b810400] ref B L1: 94.9% 5.1%
[libx264 @ 0x7ff94b810400] kb/s:2026.12
[aac @ 0x7ff94b072400] Qavg: 635.626
结果输出与输入视频相同,但最后不包含所需的图像视频.
我注意到的一件事是：当我检查mac上的视频文件(获取信息)时,它们总是在“更多信息”中包含这些行：
Dimensions: 1920 x 1080
Codecs: H.264, AAC
Color profile: HD(1-1-1)
Duration: 01:42
Audio channels: 2
Last opened: Today 11:02
但是,通过drawtext过滤器的视频有：
Dimensions: 1920 x 1080
Codecs: AAC, H.264
Duration: 00:10
Audio channels: 2
Last opened: Today 11:07
如您所见,没有颜色配置文件条目,并且编解码器已切换位置.我认为这与我的问题有关,但我似乎找不到它的修复方法.
PS：应用程序将在php环境(Symfony)中运行.我注意到在ffmpeg的Symfony包中没有concat命令,所以我使用的是常规终端命令.我将使用php执行这些.
编辑
尝试3
在给同事的建议时,我尝试将视频转换为.avi并重新转换为.mp4,希望这会丢失drawtext过滤器中包含的任何损坏或额外信息.这会吐出一个完全不同的错误.
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x7f812413da00] Auto-inserting h264_mp4toannexb bitstream filtereed=0.516x
[concat @ 0x7f8124009a00] DTS 1569260 < 2551000 out of order
[h264 @ 0x7f8124846800] left block unavailable for requested intra4x4 mode -1
[h264 @ 0x7f8124846800] error while decoding MB 0 0, bytestream 47919
[h264 @ 0x7f8124846800] concealing 8160 DC, 8160 AC, 8160 MV errors in I frame
[aac @ 0x7f8125809a00] Queue input is backward in time
[aac @ 0x7f8125815a00] Queue input is backward in time
[h264 @ 0x7f8124846e00] number of reference frames (1+3) exceeds max (3; probably corrupt input), discarding one
[h264 @ 0x7f8124846e00] chroma_log2_weight_denom 26 is out of range
[h264 @ 0x7f8124846e00] deblocking_filter_idc 32 out of range
[h264 @ 0x7f8124846e00] decode_slice_header error
[h264 @ 0x7f8124846e00] no frame!
[mp4 @ 0x7f8124802200] Non-monotonous DTS in output stream 0:1; previous: 4902912, current: 4505491; changing to 4902913. This may result in incorrect timestamps in the output file.
[mp4 @ 0x7f8125813000] Non-monotonous DTS in output stream 1:1; previous: 4902912, current: 4505491; changing to 4902913. This may result in incorrect timestamps in the output file.
[h264 @ 0x7f8124803400] reference overflow 20 > 15 or 0 > 15
[h264 @ 0x7f8124803400] decode_slice_header error
[h264 @ 0x7f8124803400] no frame!
[mp4 @ 0x7f8124802200] Non-monotonous DTS in output stream 0:1; previous: 4902913, current: 4506515; changing to 4902914. This may result in incorrect timestamps in the output file.
[mp4 @ 0x7f8125813000] Non-monotonous DTS in output stream 1:1; previous: 4902913, current: 4506515; changing to 4902914. This may result in incorrect timestamps in the output file.
[mp4 @ 0x7f8124802200] Non-monotonous DTS in output stream 0:1; previous: 4902914, current: 4507539; changing to 4902915. This may result in incorrect timestamps in the output file.
[mp4 @ 0x7f8125813000] Non-monotonous DTS in output stream 1:1; previous: 4902914, current: 4507539; changing to 4902915. This may result in incorrect timestamps in the output file.
# Again, this continues for quite a while.
最佳答案 请改用concat过滤器,并在一个命令中执行.
ffmpeg -i main.mp4 -loop 1 -framerate 30 -t 10 -i image.png
-filter_complex "[1]drawtext=fontfile=HelveticaNeue.dfont:text='GLNS/TEST/1234b':
fontcolor=black:fontsize=20:box=1:boxcolor=white:boxborderw=7:
x=179:y=805[it];
[0:v][it]concat,split[hd][sd]"
-map "[hd]" -map 0:a combined1080p.mp4
-map "[sd]" -map 0:a -s 1024x576 combined576p.mp4
我假设您的主视频和图像都已经是1920×1080.
