我正在使用avconv将使用Logitech USB Cam（YUYV）捕获的原始视频转换为mp4。我已经尝试过以下方法：
avconv -i out.raw -c copy output.mp4
avconv -i out.raw -vcodec copy -acodec copy output.mp4
但是我收到了如下所示的错误。
root@beaglebone:~/BBB_CV/boneCV# avconv -i out.raw -c copy output.mp4
avconv version 11.9-6:11.9-1~deb8u1, Copyright (c) 2000-2017 the Libav developersbuilt on Apr 23 2017 23:00:54 with gcc 4.9.2 (Debian 4.9.2-10)
out.raw: Invalid data found when processing input
我已查看here，但未找到上述目的的相关示例。
编辑：添加了更多详细信息 -
我尝试按照建议添加infile选项来执行以下操作：
root@beaglebone:~/BBB_CV/boneCV# avconv -s 640x480 -framerate 30 -pix_fmt yuyv422 -f rawvideo -i out.raw -c copy output.mp4
这让我摆脱了之前的错误，并弹出了一些新的错误，如下所示。
root@beaglebone:~/BBB_CV/boneCV# avconv -s 640x480 -framerate 30 -pix_fmt yuyv422 -f rawvideo -i out.raw -c copy output.mp4
avconv version 11.9-6:11.9-1~deb8u1, Copyright (c) 2000-2017 the Libav
developers built on Apr 23 2017 23:00:54 with gcc 4.9.2 (Debian 4.9.2-10)
[rawvideo @ 0x17e21c0] Estimating duration from bitrate, this may be inaccurate
Input #0, rawvideo, from 'out.raw':
Duration: N/A, start: 0.000000, bitrate: N/A
Stream #0.0: Video: rawvideo, yuyv422, 640x480, 30 tbn
[mp4 @ 0x17eb840] Codec for stream 0 does not use global headers but
container format requires global headers
[mp4 @ 0x17eb840] track 0: could not find tag, codec not currently
supported in container
Output #0, mp4, to 'output.mp4':
Metadata:
encoder : Lavf56.1.0
Stream #0.0: Video: rawvideo, yuyv422, 640x480, q=2-31, 30 tbn, 30 tbc
Stream mapping:
Stream #0:0 -> #0:0 (copy)
Could not write header for output file #0 (incorrect codec parameters ?):
Operation not permitted
正在生成output.mp4，但是当试图打开它时会抛出错误。
编辑：我运行了一个＆＃34; sudo apt-get install libav-tools＆＃34;然后尝试过。这就是我得到的。
root@beaglebone:~/BBB_CV/boneCV# avconv -s 640x480 -framerate 30 -pix_fmt
yuyv422 -f rawvideo -i out.raw -c copy output.mp4
ffmpeg version 2.6.9 Copyright (c) 2000-2016 the FFmpeg developers
built with gcc 4.9.2 (Debian 4.9.2-10)
configuration: --prefix=/usr --extra-cflags='-g -O2 -fstack-protector-
strong -Wformat -Werror=format-security ' --extra-ldflags='-Wl,-z,relro'
-cc='ccache cc' --enable-shared --enable-libmp3lame --enable-gpl --enable-
nonfree --enable-libvorbis --enable-pthreads --enable-libfaac --enable-
libxvid --enable-postproc --enable-x11grab --enable-libgsm --enable-
libtheora --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-
libx264 --enable-libspeex --enable-nonfree --disable-stripping --enable-
libvpx --enable-libschroedinger --disable-encoder=libschroedinger --
enable-version3 --enable-libopenjpeg --enable-librtmp --enable-avfilter -
enable-libfreetype --enable-libvo-aacenc --disable-decoder=amrnb --enable-
libvo-amrwbenc --enable-libaacplus --libdir=/usr/lib/arm-linux-gnueabihf -
-disable-vda --enable-libbluray --enable-libcdio --enable-gnutls --enable-
frei0r --enable-openssl --enable-libass --enable-libopus --enable-
fontconfig --enable-libpulse --disable-mips32r2 --disable-mipsdspr1 --
disable-mipsdspr2 --enable-libvidstab --enable-libzvbi --enable-avresample
--disable-htmlpages --disable-podpages --enable-libutvideo --enable-
libfdk-aac --enable-libx265 --enable-libiec61883 --enable-libdc1394 --
disable-altivec --shlibdir=/usr/lib/arm-linux-gnueabihf
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
libavresample 2. 1. 0 / 2. 1. 0
libswscale 3. 1.101 / 3. 1.101
libswresample 1. 1.100 / 1. 1.100
libpostproc 53. 3.100 / 53. 3.100
[rawvideo @ 0x18465e0] Estimating duration from bitrate, this may be
inaccurate
Input #0, rawvideo, from 'out.raw':
Duration: 00:00:00.10, start: 0.000000, bitrate: 146626 kb/s
Stream #0:0: Video: rawvideo (YUY2 / 0x32595559), yuyv422, 640x480, 147456
kb/s, 30 tbr, 30 tbn, 30 tbc
[mp4 @ 0x184f790] Could not find tag for codec rawvideo in stream #0,
codec not currently supported in container
Output #0, mp4, to 'output.mp4':
Metadata:
encoder : Lavf56.25.101
Stream #0:0: Video: rawvideo (YUY2 / 0x32595559), yuyv422, 640x480, q=2-
31, 147456 kb/s, 30 tbr, 30 tbn, 30 tbc
Stream mapping:
Stream #0:0 -> #0:0 (copy)
Could not write header for output file #0 (incorrect codec parameters ?):
Invalid argument
我跑了＆＃34; ffmpeg -s 640x480 -framerate 30 -pix_fmt yuv420p -f rawvideo -i out.raw output.mp4＆＃34;以下是我得到的。
root@beaglebone:~/BBB_CV/boneCV# ffmpeg -s 640x480 -framerate 30 -pix_fmt yuv420p -f rawvideo -i out.raw output.mp4
ffmpeg version 2.6.9 Copyright (c) 2000-2016 the FFmpeg developers
built with gcc 4.9.2 (Debian 4.9.2-10)
configuration: --prefix=/usr --extra-cflags='-g -O2 -fstack-protector-strong -Wformat -Werror=format-security ' --extra-ldflags='-Wl,-z,relro' --cc='ccache cc' --enable-shared --enable-libmp3lame --enable-gpl --enable-nonfree --enable-libvorbis --enable-pthreads --enable-libfaac --enable-libxvid --enable-postproc --enable-x11grab --enable-libgsm --enable-libtheora --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libx264 --enable-libspeex --enable-nonfree --disable-stripping --enable-libvpx --enable-libschroedinger --disable-encoder=libschroedinger --enable-version3 --enable-libopenjpeg --enable-librtmp --enable-avfilter --enable-libfreetype --enable-libvo-aacenc --disable-decoder=amrnb --enable-libvo-amrwbenc --enable-libaacplus --libdir=/usr/lib/arm-linux-gnueabihf --disable-vda --enable-libbluray --enable-libcdio --enable-gnutls --enable-frei0r --enable-openssl --enable-libass --enable-libopus --enable-fontconfig --enable-libpulse --disable-mips32r2 --disable-mipsdspr1 --disable-mipsdspr2 --enable-libvidstab --enable-libzvbi --enable-avresample --disable-htmlpages --disable-podpages --enable-libutvideo --enable-libfdk-aac --enable-libx265 --enable-libiec61883 --enable-libdc1394 --disable-altivec --shlibdir=/usr/lib/arm-linux-gnueabihf
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
libavresample 2. 1. 0 / 2. 1. 0
libswscale 3. 1.101 / 3. 1.101
libswresample 1. 1.100 / 1. 1.100
libpostproc 53. 3.100 / 53. 3.100
[rawvideo @ 0x1d55e0] Estimating duration from bitrate, this may be inaccurate
Input #0, rawvideo, from 'out.raw':
Duration: 00:00:00.13, start: 0.000000, bitrate: 109969 kb/s
Stream #0:0: Video: rawvideo (I420 / 0x30323449), yuv420p, 640x480, 110592 kb/s, 30 tbr, 30 tbn, 30 tbc
[libx264 @ 0x1df6c0] using cpu capabilities: ARMv6 NEON
[libx264 @ 0x1df6c0] profile High, level 3.0
[libx264 @ 0x1df6c0] 264 - core 146 - H.264/MPEG-4 AVC codec - Copyleft 2003-2015 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=1 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=25 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
Output #0, mp4, to 'output.mp4':
Metadata:
encoder : Lavf56.25.101
Stream #0:0: Video: h264 (libx264) ([33][0][0][0] / 0x0021), yuv420p, 640x480, q=-1--1, 30 fps, 15360 tbn, 30 tbc
Metadata:
encoder : Lavc56.26.100 libx264
Stream mapping:
Stream #0:0 -> #0:0 (rawvideo (native) -> h264 (libx264))
Press [q] to stop, [?] for help
[rawvideo @ 0x1de3a0] Invalid buffer size, packet size 450428 < expected frame_size 460800
Error while decoding stream #0:0: Invalid argument
frame= 3 fps=1.7 q=29.0 Lsize= 263kB time=00:00:00.03 bitrate=64692.6kbits/s
video:262kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.318205%
[libx264 @ 0x1df6c0] frame I:1 Avg QP:33.09 size:100676
[libx264 @ 0x1df6c0] frame P:2 Avg QP:32.99 size: 83672
[libx264 @ 0x1df6c0] mb I I16..4: 0.0% 95.4% 4.6%
[libx264 @ 0x1df6c0] mb P I16..4: 0.0% 45.7% 3.0% P16..4: 35.9% 10.7% 4.8% 0.0% 0.0% skip: 0.0%
[libx264 @ 0x1df6c0] 8x8 transform intra:94.6% inter:86.1%
[libx264 @ 0x1df6c0] coded y,uvDC,uvAC intra: 100.0% 100.0% 100.0% inter: 53.6% 100.0% 100.0%
[libx264 @ 0x1df6c0] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 56% 12% 24% 2% 0% 1% 1% 2% 3%
[libx264 @ 0x1df6c0] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 82% 11% 4% 0% 0% 0% 1% 0% 1%
[libx264 @ 0x1df6c0] i8c dc,h,v,p: 48% 30% 14% 7%
[libx264 @ 0x1df6c0] Weighted P-Frames: Y:0.0% UV:0.0%
[libx264 @ 0x1df6c0] ref P L0: 83.5% 7.9% 8.6%
[libx264 @ 0x1df6c0] kb/s:21441.60
答案 0 :(得分：0)
由于输入是原始的，因此avconv不知道输入属性。它需要将它们注册到它创建的MP4的MOOV盒中。因此，在-i out.raw之前，您需要指定应替换值的-s WxH -framerate N -pix_fmt P .YYYV通常为yuyv422。