[求助]MediaCoder使用这个设置压无损可以么?

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只看该作者 30楼发表于: 2009-05-15

压无损设置多少为适合

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级别: 精灵王

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只看该作者 31楼发表于: 2009-05-15

压无损不要用level，其他设置应该没什么问题（很多是没用的，不过设了也没事）

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只看该作者 32楼发表于: 2009-05-15

不要用level也就是设置0?

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级别: 精灵王

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只看该作者 33楼发表于: 2009-05-15

可能是吧，不知道

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xreal

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只看该作者 34楼发表于: 2009-05-15

[/han]
你要保持高质量就用megui里面的x264 insane profile来压。不知道搞什么无损，你都转码了还无损[/han] ，只有remux才能叫无损

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只看该作者 35楼发表于: 2009-05-15

楼上你不识字码，他的片源是HuffYUV啊，无损的。无损转无损有问题吗？

P.S. 你知道insane profile是什么参数吗？不懂就不要对别人指手画脚

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Kisoul

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最初由 roozhou 发布
楼上你不识字码，他的片源是HuffYUV啊，无损的。无损转无损有问题吗？

P.S. 你知道insane profile是什么参数吗？不懂就不要对别人指手画脚

roozhou,还是那样的严厉啊！呵呵，不懂得小白闪过~~~~

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ssnake

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最初由 roozhou 发布
压无损不要用level，其他设置应该没什么问题（很多是没用的，不过设了也没事）

x264不会因为Level设定而有所限制的，只是给个Warning而已。解码端会不会受Level影响我就不知道了……

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级别: 精灵王

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最初由 ssnake 发布
x264不会因为Level设定而有所限制的，只是给个Warning而已。解码端会不会受Level影响我就不知道了……

就是这个问题，x264输出的实际level和bitstream header中的level不同，有可能导致解码器出错

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只看该作者 39楼发表于: 2009-05-15

设为0无法转换,设为5-10画面还是无法播放

Compiled with runtime CPU detection.
success: format: 0 data: 0x0 - 0x1b45aec
AVI file format detected.
[aviheader] Video stream found, -vid 0
[aviheader] Audio stream found, -aid 1
VIDEO: [HFYU] 640x480 24bpp 30.000 fps 63655.7 kbps (7770.5 kbyte/s)
[V] filefmt:3 fourcc:0x55594648 size:640x480 fps:30.000 ftime:=0.0333
Opening video filter: [expand osd=1]
Expand: -1 x -1, -1 ; -1, osd: 1, aspect: 0.000000, round: 1
Opening video filter: [format fmt=i420]
Opening video filter: [harddup]
==========================================================================
Opening video decoder: [ffmpeg] FFmpeg's libavcodec codec family
Selected video codec: [ffhuffyuv] vfm: ffmpeg (FFmpeg HuffYUV)
==========================================================================
VDec: vo config request - 640 x 480 (preferred colorspace: Planar YV12)
Could not find matching colorspace - retrying with -vf scale...
Opening video filter: [scale]
VDec: using Planar YV12 as output csp (no 2)
Movie-Aspect is undefined - no prescaling applied.
[swscaler @ 0pb4f0bc]using unscaled yuv420p -> yuv420p special converter

# ".\codecs\x264.exe" - 640x480 --fps 30/1 --quiet --no-psnr --no-ssim --keyint
250 --min-keyint 25 --level 10 --me hex --merange 16 --no-dct-decimate --no-fast
-pskip --non-deterministic --ref 2 --subme 6 --bframes 2 --direct auto --trellis
1 --b-rdo --bime --crf 0 --sar 640:640 --threads auto -o "C:\DOCUME~1\wi\LOCALS
~1\Temp\mcstream3636.264"

Flushing video frames.

Video stream:0.240 kbit/s (30 B/s) size: 105 bytes 3.500 secs 105 frames

encoded 105 frames, 21.47 fps, 43703.61 kb/s
File C:\DOCUME~1\wi\LOCALS~1\Temp\mcstream3636.264 is scheduled to be added into
container as type 2.

# ".\tools\mp4box.exe" -tmp "C:\DOCUME~1\wi\LOCALS~1\Temp" -fps 30 -add "C:\DOCU
ME~1\wi\LOCALS~1\Temp\mcstream3636.264" "E:\ds043_PMCcn.com_1_000733.mp4"

AVC-H264 import - frame size 640 x 480 at 30.000 FPS
Import results: 105 samples - Slices: 1 I 53 P 51 B - 1 SEI - 1 IDR
Saving to E:\ds043_PMCcn.com_1_000733.mp4: 0.500 secs Interleaving

# ".\codecs\mencoder.exe" -quiet -of rawvideo -ovc raw -rawvidopts pipe=7 -chann
els 1 -subcp cp936 -sub-fuzziness 1 -subfont-autoscale 3 -subfont-blur 2 -subfon
t-outline 2 -subfont C:\WINDOWS\Fonts\simhei.ttf -vf harddup,format=i420 -endpos
3 -nosound "H:\剪\ds043_PMCcn.com_1_000733.avi" -o NUL

MEncoder dev-SVN-rUNKNOWN-4.2.3 (C) 2000-2008 MPlayer Team
CPU: Pentium(R) Dual-Core CPU E5200 @ 2.50GHz (Family: 6, Model: 23, Step
ping: 6)
CPUflags: Type: 6 MMX: 1 MMX2: 1 3DNow: 0 3DNow2: 0 SSE: 1 SSE2: 1
Compiled with runtime CPU detection.
success: format: 0 data: 0x0 - 0x1b45aec
AVI file format detected.
[aviheader] Video stream found, -vid 0
[aviheader] Audio stream found, -aid 1
VIDEO: [HFYU] 640x480 24bpp 30.000 fps 63655.7 kbps (7770.5 kbyte/s)
[V] filefmt:3 fourcc:0x55594648 size:640x480 fps:30.000 ftime:=0.0333
Opening video filter: [expand osd=1]
Expand: -1 x -1, -1 ; -1, osd: 1, aspect: 0.000000, round: 1
Opening video filter: [format fmt=i420]
Opening video filter: [harddup]
==========================================================================
Opening video decoder: [ffmpeg] FFmpeg's libavcodec codec family
Selected video codec: [ffhuffyuv] vfm: ffmpeg (FFmpeg HuffYUV)
==========================================================================
VDec: vo config request - 640 x 480 (preferred colorspace: Planar YV12)
Could not find matching colorspace - retrying with -vf scale...
Opening video filter: [scale]
VDec: using Planar YV12 as output csp (no 2)
Movie-Aspect is undefined - no prescaling applied.
[swscaler @ 0pb4f0bc]using unscaled yuv420p -> yuv420p special converter

# ".\codecs\x264.exe" - 640x480 --fps 30/1 --quiet --no-psnr --no-ssim --keyint
250 --min-keyint 25 --level 15 --me hex --merange 16 --no-dct-decimate --no-fast
-pskip --non-deterministic --ref 2 --subme 6 --bframes 2 --direct auto --trellis
1 --b-rdo --bime --crf 0 --sar 640:640 --threads auto -o "C:\DOCUME~1\wi\LOCALS
~1\Temp\mcstream3636.264"

x264 [error]: x264_encoder_open failed
File C:\DOCUME~1\wi\LOCALS~1\Temp\mcstream3636.264 is scheduled to be added into
container as type 2.

# ".\codecs\mencoder.exe" -quiet -of rawvideo -ovc raw -rawvidopts pipe=8 -chann
els 1 -subcp cp936 -sub-fuzziness 1 -subfont-autoscale 3 -subfont-blur 2 -subfon
t-outline 2 -subfont C:\WINDOWS\Fonts\simhei.ttf -vf harddup,format=i420 -endpos
3 -nosound "H:\剪\ds043_PMCcn.com_1_000733.avi" -o NUL

MEncoder dev-SVN-rUNKNOWN-4.2.3 (C) 2000-2008 MPlayer Team
CPU: Pentium(R) Dual-Core CPU E5200 @ 2.50GHz (Family: 6, Model: 23, Step
ping: 6)
CPUflags: Type: 6 MMX: 1 MMX2: 1 3DNow: 0 3DNow2: 0 SSE: 1 SSE2: 1
Compiled with runtime CPU detection.
success: format: 0 data: 0x0 - 0x1b45aec
AVI file format detected.
[aviheader] Video stream found, -vid 0
[aviheader] Audio stream found, -aid 1
VIDEO: [HFYU] 640x480 24bpp 30.000 fps 63655.7 kbps (7770.5 kbyte/s)
[V] filefmt:3 fourcc:0x55594648 size:640x480 fps:30.000 ftime:=0.0333
Opening video filter: [expand osd=1]
Expand: -1 x -1, -1 ; -1, osd: 1, aspect: 0.000000, round: 1
Opening video filter: [format fmt=i420]
Opening video filter: [harddup]
==========================================================================
Opening video decoder: [ffmpeg] FFmpeg's libavcodec codec family
Selected video codec: [ffhuffyuv] vfm: ffmpeg (FFmpeg HuffYUV)
==========================================================================
VDec: vo config request - 640 x 480 (preferred colorspace: Planar YV12)
Could not find matching colorspace - retrying with -vf scale...
Opening video filter: [scale]
VDec: using Planar YV12 as output csp (no 2)
Movie-Aspect is undefined - no prescaling applied.
[swscaler @ 0pb4f0bc]using unscaled yuv420p -> yuv420p special converter

# ".\codecs\x264.exe" - 640x480 --fps 30/1 --quiet --no-psnr --no-ssim --keyint
250 --min-keyint 25 --level 5 --me hex --merange 16 --no-dct-decimate --no-fast-
pskip --non-deterministic --ref 2 --subme 6 --bframes 2 --direct auto --trellis
1 --b-rdo --bime --crf 0 --sar 640:640 --threads auto -o "C:\DOCUME~1\wi\LOCALS~
1\Temp\mcstream3636.264"

Flushing video frames.

Video stream:0.240 kbit/s (30 B/s) size: 91 bytes 3.033 secs 91 frames

encoded 90 frames, 21.57 fps, 43860.53 kb/s
File C:\DOCUME~1\wi\LOCALS~1\Temp\mcstream3636.264 is scheduled to be added into
container as type 2.

# ".\tools\mp4box.exe" -tmp "C:\DOCUME~1\wi\LOCALS~1\Temp" -fps 30 -add "C:\DOCU
ME~1\wi\LOCALS~1\Temp\mcstream3636.264" "E:\ds043_PMCcn.com_1_000733.mp4"

AVC-H264 import - frame size 640 x 480 at 30.000 FPS
Import results: 90 samples - Slices: 1 I 47 P 42 B - 1 SEI - 1 IDR
Saving to E:\ds043_PMCcn.com_1_000733.mp4: 0.500 secs Interleaving

# ".\codecs\mencoder.exe" -quiet -of rawvideo -ovc raw -rawvidopts pipe=8 -chann
els 1 -subcp cp936 -sub-fuzziness 1 -subfont-autoscale 3 -subfont-blur 2 -subfon
t-outline 2 -subfont C:\WINDOWS\Fonts\simhei.ttf -vf harddup,format=i420 -nosoun
d "H:\剪\ds043_PMCcn.com_1_000733.avi" -o NUL

MEncoder dev-SVN-rUNKNOWN-4.2.3 (C) 2000-2008 MPlayer Team
CPU: Pentium(R) Dual-Core CPU E5200 @ 2.50GHz (Family: 6, Model: 23, Step
ping: 6)
CPUflags: Type: 6 MMX: 1 MMX2: 1 3DNow: 0 3DNow2: 0 SSE: 1 SSE2: 1
Compiled with runtime CPU detection.
success: format: 0 data: 0x0 - 0x1b45aec
AVI file format detected.
[aviheader] Video stream found, -vid 0
[aviheader] Audio stream found, -aid 1
VIDEO: [HFYU] 640x480 24bpp 30.000 fps 63655.7 kbps (7770.5 kbyte/s)
[V] filefmt:3 fourcc:0x55594648 size:640x480 fps:30.000 ftime:=0.0333
Opening video filter: [expand osd=1]
Expand: -1 x -1, -1 ; -1, osd: 1, aspect: 0.000000, round: 1
Opening video filter: [format fmt=i420]
Opening video filter: [harddup]
==========================================================================
Opening video decoder: [ffmpeg] FFmpeg's libavcodec codec family
Selected video codec: [ffhuffyuv] vfm: ffmpeg (FFmpeg HuffYUV)
==========================================================================
VDec: vo config request - 640 x 480 (preferred colorspace: Planar YV12)
Could not find matching colorspace - retrying with -vf scale...
Opening video filter: [scale]
VDec: using Planar YV12 as output csp (no 2)
Movie-Aspect is undefined - no prescaling applied.
[swscaler @ 0pb4f0bc]using unscaled yuv420p -> yuv420p special converter

# ".\codecs\x264.exe" - 640x480 --fps 30/1 --quiet --no-psnr --no-ssim --keyint
250 --min-keyint 25 --level 5 --me hex --merange 16 --no-dct-decimate --no-fast-
pskip --non-deterministic --ref 2 --subme 6 --bframes 2 --direct auto --trellis
1 --b-rdo --bime --crf 0 --sar 640:640 --threads auto -o "C:\DOCUME~1\wi\LOCALS~
1\Temp\mcstream3636.264"

Flushing video frames.

Video stream:0.240 kbit/s (30 B/s) size: 105 bytes 3.500 secs 105 frames

encoded 105 frames, 21.40 fps, 43703.40 kb/s
File C:\DOCUME~1\wi\LOCALS~1\Temp\mcstream3636.264 is scheduled to be added into
container as type 2.

# ".\tools\mp4box.exe" -tmp "C:\DOCUME~1\wi\LOCALS~1\Temp" -fps 30 -add "C:\DOCU
ME~1\wi\LOCALS~1\Temp\mcstream3636.264" "E:\ds043_PMCcn.com_1_000733.mp4"

AVC-H264 import - frame size 640 x 480 at 30.000 FPS
Import results: 105 samples - Slices: 1 I 53 P 51 B - 1 SEI - 1 IDR
Saving to E:\ds043_PMCcn.com_1_000733.mp4: 0.500 secs Interleaving

# ".\codecs\mencoder.exe" -quiet -of rawvideo -ovc raw -rawvidopts pipe=8 -chann
els 1 -subcp cp936 -sub-fuzziness 1 -subfont-autoscale 3 -subfont-blur 2 -subfon
t-outline 2 -subfont C:\WINDOWS\Fonts\simhei.ttf -vf harddup,format=i420 -endpos
3 -nosound "H:\剪\ds043_PMCcn.com_1_000733.avi" -o NUL

MEncoder dev-SVN-rUNKNOWN-4.2.3 (C) 2000-2008 MPlayer Team
CPU: Pentium(R) Dual-Core CPU E5200 @ 2.50GHz (Family: 6, Model: 23, Step
ping: 6)
CPUflags: Type: 6 MMX: 1 MMX2: 1 3DNow: 0 3DNow2: 0 SSE: 1 SSE2: 1
Compiled with runtime CPU detection.
success: format: 0 data: 0x0 - 0x1b45aec
AVI file format detected.
[aviheader] Video stream found, -vid 0
[aviheader] Audio stream found, -aid 1
VIDEO: [HFYU] 640x480 24bpp 30.000 fps 63655.7 kbps (7770.5 kbyte/s)
[V] filefmt:3 fourcc:0x55594648 size:640x480 fps:30.000 ftime:=0.0333
Opening video filter: [expand osd=1]
Expand: -1 x -1, -1 ; -1, osd: 1, aspect: 0.000000, round: 1
Opening video filter: [format fmt=i420]
Opening video filter: [harddup]
==========================================================================
Opening video decoder: [ffmpeg] FFmpeg's libavcodec codec family
Selected video codec: [ffhuffyuv] vfm: ffmpeg (FFmpeg HuffYUV)
==========================================================================
VDec: vo config request - 640 x 480 (preferred colorspace: Planar YV12)
Could not find matching colorspace - retrying with -vf scale...
Opening video filter: [scale]
VDec: using Planar YV12 as output csp (no 2)
Movie-Aspect is undefined - no prescaling applied.
[swscaler @ 0pb4f0bc]using unscaled yuv420p -> yuv420p special converter

# ".\codecs\x264.exe" - 640x480 --fps 30/1 --quiet --no-psnr --no-ssim --keyint
250 --min-keyint 25 --level 5 --me hex --merange 16 --no-dct-decimate --no-fast-
pskip --non-deterministic --ref 2 --subme 6 --bframes 2 --direct auto --trellis
1 --b-rdo --bime --crf 0 --sar 640:640 --threads auto -o "C:\DOCUME~1\wi\LOCALS~
1\Temp\mcstream3636.264"

Flushing video frames.

Video stream:0.240 kbit/s (30 B/s) size: 91 bytes 3.033 secs 91 frames

encoded 90 frames, 20.57 fps, 43860.53 kb/s
File C:\DOCUME~1\wi\LOCALS~1\Temp\mcstream3636.264 is scheduled to be added into
container as type 2.

# ".\tools\mp4box.exe" -tmp "C:\DOCUME~1\wi\LOCALS~1\Temp" -fps 30 -add "C:\DOCU
ME~1\wi\LOCALS~1\Temp\mcstream3636.264" "E:\ds043_PMCcn.com_1_000733.mp4"

AVC-H264 import - frame size 640 x 480 at 30.000 FPS
Import results: 90 samples - Slices: 1 I 47 P 42 B - 1 SEI - 1 IDR
Saving to E:\ds043_PMCcn.com_1_000733.mp4: 0.500 secs Interleaving

# ".\codecs\mencoder.exe" -quiet -of rawvideo -ovc raw -rawvidopts pipe=8 -chann
els 1 -subcp cp936 -sub-fuzziness 1 -subfont-autoscale 3 -subfont-blur 2 -subfon
t-outline 2 -subfont C:\WINDOWS\Fonts\simhei.ttf -vf harddup,format=i420 -nosoun
d "H:\剪\ds043_PMCcn.com_1_000733.avi" -o NUL

MEncoder dev-SVN-rUNKNOWN-4.2.3 (C) 2000-2008 MPlayer Team
CPU: Pentium(R) Dual-Core CPU E5200 @ 2.50GHz (Family: 6, Model: 23, Step
ping: 6)
CPUflags: Type: 6 MMX: 1 MMX2: 1 3DNow: 0 3DNow2: 0 SSE: 1 SSE2: 1
Compiled with runtime CPU detection.
success: format: 0 data: 0x0 - 0x1b45aec
AVI file format detected.
[aviheader] Video stream found, -vid 0
[aviheader] Audio stream found, -aid 1
VIDEO: [HFYU] 640x480 24bpp 30.000 fps 63655.7 kbps (7770.5 kbyte/s)
[V] filefmt:3 fourcc:0x55594648 size:640x480 fps:30.000 ftime:=0.0333
Opening video filter: [expand osd=1]
Expand: -1 x -1, -1 ; -1, osd: 1, aspect: 0.000000, round: 1
Opening video filter: [format fmt=i420]
Opening video filter: [harddup]
==========================================================================
Opening video decoder: [ffmpeg] FFmpeg's libavcodec codec family
Selected video codec: [ffhuffyuv] vfm: ffmpeg (FFmpeg HuffYUV)
==========================================================================
VDec: vo config request - 640 x 480 (preferred colorspace: Planar YV12)
Could not find matching colorspace - retrying with -vf scale...
Opening video filter: [scale]
VDec: using Planar YV12 as output csp (no 2)
Movie-Aspect is undefined - no prescaling applied.
[swscaler @ 0pb4f0bc]using unscaled yuv420p -> yuv420p special converter

# ".\codecs\x264.exe" - 640x480 --fps 30/1 --quiet --no-psnr --no-ssim --keyint
250 --min-keyint 25 --level 5 --me hex --merange 16 --no-dct-decimate --no-fast-
pskip --non-deterministic --ref 2 --subme 6 --bframes 2 --direct auto --trellis
1 --b-rdo --bime --crf 0 --sar 640:640 --threads auto -o "C:\DOCUME~1\wi\LOCALS~
1\Temp\mcstream3636.264"

Flushing video frames.

Video stream:0.240 kbit/s (30 B/s) size: 105 bytes 3.500 secs 105 frames

encoded 105 frames, 20.94 fps, 43703.46 kb/s
File C:\DOCUME~1\wi\LOCALS~1\Temp\mcstream3636.264 is scheduled to be added into
container as type 2.

# ".\tools\mp4box.exe" -tmp "C:\DOCUME~1\wi\LOCALS~1\Temp" -fps 30 -add "C:\DOCU
ME~1\wi\LOCALS~1\Temp\mcstream3636.264" "E:\ds043_PMCcn.com_1_000733.mp4"

AVC-H264 import - frame size 640 x 480 at 30.000 FPS
Import results: 105 samples - Slices: 1 I 53 P 51 B - 1 SEI - 1 IDR
Saving to E:\ds043_PMCcn.com_1_000733.mp4: 0.500 secs Interleaving

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xreal

级别: 新手上路

注册时间:: 2003-08-16

在线时间:: 1小时

发帖:: 229

只看该作者 40楼发表于: 2009-05-15

:Zz: 继续折腾你们的所谓无损吧。640x480x30fps的无压缩码率自己算算是多少。这种分辨率的东西追求什么无损，再无损也比不了更高分辨率的有损。
http://en.wikipedia.org/wiki/H.264/MPEG-4_AVC
看得懂得自己去研究吧。level 2.1根本做不了那么大码率,这个码率已经超过了

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xreal

级别: 新手上路

注册时间:: 2003-08-16

在线时间:: 1小时

发帖:: 229

只看该作者 41楼发表于: 2009-05-15

:Zz:
整天用main profile压片还搞这么大码率，不出问题才怪，这个码率已经和high4.1的上限码率相差无几，会造成硬解失败。

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