嗨，不知道我做错了还是有错误。
尝试将1080i视频从带有立体声音频的Quicktime Animation隔行扫描上场转换为MXF，DNxHD，带有谨慎的单声道音频通道和视频隔行扫描。 DNxHD = VC-3 op1a 120M。
除了最终结果被标记为渐进之外，一切都像魅力一样！我可以看到，当我看到视频时，它是交错的，看起来很好看，所以一切都井然有序。
但是MXF文件将其自身识别为渐进式视频，因此我们的资产管理系统将其视为渐进式文件1080p，Avid Mediacomposers也是如此。
我无法解决ffprobe的问题，但我可以在MediaInfo v0.7.69中找到问题 见下文。
我跑的命令：
./ffmpeg -i OLLETEST_MANSZELM_ANIMATION.mov -timecode 10:00:00:00 -threads 16 -map 0:0 -map 0:1 -map 0:1 -map_channel 0.1.0:0.1 -map_channel 0.1.1:0.2 -vcodec dnxhd -b:v 120M -acodec pcm_s24le -ar 48000 -flags +ildct -y test.mxf
使用媒体信息运行的转码文件会报告此奇怪的结果。
Scan type : Progressive
Original scan type : Interlaced
Original scan order : Top Field First
似乎-flags +ildct不影响扫描类型：
ffmpeg的输出：
Olles-MacBook-Pro-2:NoBackUp olso$ ./ffmpeg -i OLLETEST_MANSZELM_ANIMATION.mov -timecode 00:10:00:00 -threads 16 -map 0:0 -map 0:1 -map 0:1 -map_channel 0.1.0:0.1 -map_channel 0.1.1:0.2 -vcodec dnxhd -b:v 120M -acodec pcm_s24le -ar 48000 -flags +ildct -y test.mxf
ffmpeg version 2.6.2-tessus Copyright (c) 2000-2015 the FFmpeg developers
built with Apple LLVM version 6.0 (clang-600.0.57) (based on LLVM 3.5svn)
configuration: --cc=/usr/bin/clang --prefix=/Users/helmutt/data/ext/ffmpeg/sw --as=yasm --extra-version=tessus --disable-shared --enable-static --disable-ffplay --enable-gpl --enable-pthreads --enable-postproc --enable-libmp3lame --enable-libtheora --enable-libvorbis --enable-libx264 --enable-libx265 --enable-libxvid --enable-libspeex --enable-bzlib --enable-zlib --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libxavs --enable-libsoxr --enable-libwavpack --enable-version3 --enable-libvo-aacenc --enable-libvo-amrwbenc --enable-libvpx --enable-libgsm --enable-libopus --enable-libmodplug --enable-fontconfig --enable-libfreetype --enable-libass --enable-libbluray --enable-filters --disable-indev=qtkit --disable-indev=x11grab_xcb --enable-runtime-cpudetect
libavutil 54. 20.100 / 54. 20.100
libavcodec 56. 26.100 / 56. 26.100
libavformat 56. 25.101 / 56. 25.101
libavdevice 56. 4.100 / 56. 4.100
libavfilter 5. 11.102 / 5. 11.102
libswscale 3. 1.101 / 3. 1.101
libswresample 1. 1.100 / 1. 1.100
libpostproc 53. 3.100 / 53. 3.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'OLLETEST_MANSZELM_ANIMATION.mov':
Metadata:
major_brand : qt
minor_version : 537199360
compatible_brands: qt
creation_time : 2015-04-14 20:40:41
Duration: 00:00:11.04, start: 0.000000, bitrate: 1141927 kb/s
Stream #0:0(eng): Video: qtrle (rle / 0x20656C72), rgb24, 1920x1080, 1140363 kb/s, SAR 1:1 DAR 16:9, 25 fps, 25 tbr, 25 tbn, 25 tbc (default)
Metadata:
creation_time : 2015-04-14 20:40:41
handler_name : Apple Alias Data Handler
encoder : Animation
timecode : 00:00:00:00
Stream #0:1(eng): Audio: pcm_s16le (sowt / 0x74776F73), 48000 Hz, stereo, s16, 1536 kb/s (default)
Metadata:
creation_time : 2015-04-14 20:40:41
handler_name : Apple Alias Data Handler
timecode : 00:00:00:00
Stream #0:2(eng): Data: none (tmcd / 0x64636D74), 0 kb/s (default)
Metadata:
creation_time : 2015-04-14 20:41:01
handler_name : Apple Alias Data Handler
timecode : 00:00:00:00
-map_channel is forwarded to lavfi similarly to -af pan=0x4:c0=c0.
[pan @ 0x7f9db1e02600] This syntax is deprecated. Use '|' to separate the list items.
[pan @ 0x7f9db1e02600] Pure channel mapping detected: 0
-map_channel is forwarded to lavfi similarly to -af pan=0x4:c0=c1.
[pan @ 0x7f9db1d241e0] This syntax is deprecated. Use '|' to separate the list items.
[pan @ 0x7f9db1d241e0] Pure channel mapping detected: 1
Output #0, mxf, to 'test.mxf':
Metadata:
major_brand : qt
minor_version : 537199360
compatible_brands: qt
timecode : 00:10:00:00
encoder : Lavf56.25.101
Stream #0:0(eng): Video: dnxhd, yuv422p, 1920x1080 [SAR 1:1 DAR 16:9], q=2-1024, 120000 kb/s, 25 fps, 25 tbn, 25 tbc (default)
Metadata:
creation_time : 2015-04-14 20:40:41
handler_name : Apple Alias Data Handler
timecode : 00:00:00:00
encoder : Lavc56.26.100 dnxhd
Stream #0:1(eng): Audio: pcm_s24le, 48000 Hz, mono, s32, 1152 kb/s (default)
Metadata:
creation_time : 2015-04-14 20:40:41
handler_name : Apple Alias Data Handler
timecode : 00:00:00:00
encoder : Lavc56.26.100 pcm_s24le
Stream #0:2(eng): Audio: pcm_s24le, 48000 Hz, mono, s32, 1152 kb/s (default)
Metadata:
creation_time : 2015-04-14 20:40:41
handler_name : Apple Alias Data Handler
timecode : 00:00:00:00
encoder : Lavc56.26.100 pcm_s24le
Stream mapping:
Stream #0:0 -> #0:0 (qtrle (native) -> dnxhd (native))
Stream #0:1 -> #0:1 (pcm_s16le (native) -> pcm_s24le (native))
Stream #0:1 -> #0:2 (pcm_s16le (native) -> pcm_s24le (native))
Press [q] to stop, [?] for help
[mxf @ 0x7f9db2806c00] -d10_channelcount requires MXF D-10 and will be ignored/s
Last message repeated 1 times
frame= 276 fps= 26 q=1.0 Lsize= 166981kB time=00:00:11.20 bitrate=122134.7kbits/s
video:163392kB audio:3150kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.263624%
完成mediainfo的输出。
General
Complete name : /NoBackUp/test.mxf
Format : MXF
Format profile : OP-1a
Format settings : Closed / Complete
File size : 163 MiB
Duration : 11s 40ms
Overall bit rate : 124 Mbps
Encoded date : 0-00-00 00:00:00.000
Writing application : FFmpeg OP1a Muxer 56.25.101
Writing library : FFmpeg OP1a Muxer 56.25.101
Video
ID : 2
Format : VC-3
Format_Settings_Wrapping : Frame
Codec ID : 0D01030102110100-0401020271080000
Duration : 11s 40ms
Bit rate mode : Constant
Bit rate : 121 Mbps
Width : 1 920 pixels
Height : 1 080 pixels
Display aspect ratio : 16:9
Frame rate : 25.000 fps
Color space : YUV
Chroma subsampling : 4:2:2
Bit depth : 8 bits
Scan type : Progressive
Original scan type : Interlaced
Original scan order : Top Field First
Bits/(Pixel*Frame) : 2.339
Stream size : 160 MiB (98%)
Audio #1
ID : 3
Format : PCM
Format settings, Endianness : Little
Format_Settings_Wrapping : Frame (AES)
Codec ID : 0D01030102060300
Duration : 11s 40ms
Bit rate mode : Constant
Bit rate : 1 152 Kbps
Channel(s) : 1 channel
Sampling rate : 48.0 KHz
Bit depth : 24 bits
Stream size : 1.52 MiB (1%)
Audio #2
ID : 4
Format : PCM
Format settings, Endianness : Little
Format_Settings_Wrapping : Frame (AES)
Codec ID : 0D01030102060300
Duration : 11s 40ms
Bit rate mode : Constant
Bit rate : 1 152 Kbps
Channel(s) : 1 channel
Sampling rate : 48.0 KHz
Bit depth : 24 bits
Stream size : 1.52 MiB (1%)
Other #1
ID : 1
Type : Time code
Format : MXF TC
Time code of first frame : 00:10:00:00
Time code settings : Striped
Other #2
Type : Time code
Format : SMPTE TC
Muxing mode : SDTI
Time code of first frame : 00:10:00:00
答案 0 :(得分：0)
-flags + ildct是指示编码器中隔行扫描的正确标志;我认为音频编码器正在拾取标志。尝试使用＆＃34; -flags强制媒体类型：v + ildct＆＃34;。