Re: [FFmpeg-user] differences between -vf and -filter_complex

2017-05-10 Thread Nicolas George 
Le primidi 21 floréal, an CCXXV, Paul B Mahol a écrit :
> ffmpeg -f lavfi -i testsrc2=r=1:d=5,format=yuv422p10le -f framemd5 -

This is still suboptimal.

ffmpeg -lavfi testsrc2=r=1:d=5,format=yuv422p10le -f framemd5 -

No need to wrap the frames in packets.

Regards,

-- 
  Nicolas George


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Re: [FFmpeg-user] differences between -vf and -filter_complex

2017-05-10 Thread Paul B Mahol 
On 5/10/17, Dave Rice  wrote:
>
>> On May 10, 2017, at 2:13 PM, Paul B Mahol  wrote:
>>
>> On 5/10/17, Dave Rice > wrote:
>>> Hi ffmpeg-user,
>>>
>>> In some cases I've been using -vf and -filter_complex interchangeability
>>> but
>>> notice that some behavior is unexpectedly different.
>>>
>>> For instance if I use format=yuv422p10le within -vf and within
>>> -filter_complex the output is different. Is there something else I should
>>> add to the filterchain to get consistent results.
>>>
>>> Below is the output of:
>>> ffmpeg -f lavfi -i testsrc2=r=1:d=5 -vf format=yuv422p10le -f
>>> framemd5 -
>>> and
>>> ffmpeg -f lavfi -i testsrc2=r=1:d=5 -filter_complex format=yuv422p10le -f
>>> framemd5 -
>>
>> Both commands are suboptimal, use:
>>
>> ffmpeg -f lavfi -i testsrc2=r=1:d=5,format=yuv422p10le -f framemd5 -
>
> I usually avoid lavfi formatted inputs when I can, because IIUC there's no
> method to preserve frame interlacement data from the input through the
> filterchain. See https://trac.ffmpeg.org/ticket/4057.

How is that even related? format simply tells in what format testsrc2
will render its output.

By your command it is doing slow scale work internally always.
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Re: [FFmpeg-user] differences between -vf and -filter_complex

2017-05-10 Thread Dave Rice 

> On May 10, 2017, at 2:13 PM, Paul B Mahol  wrote:
> 
> On 5/10/17, Dave Rice > wrote:
>> Hi ffmpeg-user,
>> 
>> In some cases I've been using -vf and -filter_complex interchangeability but
>> notice that some behavior is unexpectedly different.
>> 
>> For instance if I use format=yuv422p10le within -vf and within
>> -filter_complex the output is different. Is there something else I should
>> add to the filterchain to get consistent results.
>> 
>> Below is the output of:
>> ffmpeg -f lavfi -i testsrc2=r=1:d=5 -vf format=yuv422p10le -f
>> framemd5 -
>> and
>> ffmpeg -f lavfi -i testsrc2=r=1:d=5 -filter_complex format=yuv422p10le -f
>> framemd5 -
> 
> Both commands are suboptimal, use:
> 
> ffmpeg -f lavfi -i testsrc2=r=1:d=5,format=yuv422p10le -f framemd5 -

I usually avoid lavfi formatted inputs when I can, because IIUC there's no 
method to preserve frame interlacement data from the input through the 
filterchain. See https://trac.ffmpeg.org/ticket/4057.
Dave Rice
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Re: [FFmpeg-user] differences between -vf and -filter_complex

2017-05-10 Thread Paul B Mahol 
On 5/10/17, Dave Rice  wrote:
> Hi ffmpeg-user,
>
> In some cases I've been using -vf and -filter_complex interchangeability but
> notice that some behavior is unexpectedly different.
>
> For instance if I use format=yuv422p10le within -vf and within
> -filter_complex the output is different. Is there something else I should
> add to the filterchain to get consistent results.
>
> Below is the output of:
> ffmpeg -f lavfi -i testsrc2=r=1:d=5 -vf format=yuv422p10le -f
> framemd5 -
> and
> ffmpeg -f lavfi -i testsrc2=r=1:d=5 -filter_complex format=yuv422p10le -f
> framemd5 -

Both commands are suboptimal, use:

ffmpeg -f lavfi -i testsrc2=r=1:d=5,format=yuv422p10le -f framemd5 -
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Re: [FFmpeg-user] differences between -vf and -filter_complex

2017-05-10 Thread Dave Rice 

> On May 10, 2017, at 11:55 AM, Gyan  wrote:
> 
> On Wed, May 10, 2017 at 9:08 PM, Gyan  wrote:
> 
>> 
>> 
>> On Wed, May 10, 2017 at 8:17 PM, Dave Rice  wrote:
>> 
>>> 
>>> For instance if I use format=yuv422p10le within -vf and within
>>> -filter_complex the output is different. Is there something else I should
>>> add to the filterchain to get consistent results.
>>> 
>>> Best Regards,
>>> Dave Rice
>>> 
>> 
>> These two commands produce the same result:
> 
> ffmpeg -f lavfi -i testsrc2=r=1:d=5 -f lavfi -i testsrc2=r=1:d=5
> -filter_complex scale=flags=bicubic,format=yuv422p10le  -f framemd5 -
> 
> ffmpeg -f lavfi -i testsrc2=r=1:d=5 -f lavfi -i testsrc2=r=1:d=5 -vf
> scale=flags=bicubic,format=yuv422p10le -f framemd5 -
> 
> 
> 0,  0,  0,1,   307200,
> b8ef3d6c4fc96d70fafbf20afd8f9cdf
> 0,  1,  1,1,   307200,
> dada36d572dfe9b75b799b207e54590b
> 0,  2,  2,1,   307200,
> f6b2bd8a2cafbe7261bd97cd41930ad3
> 0,  3,  3,1,   307200,
> 5efbf76a4e8af59271de6a3e8cfb63f4
> 0,  4,  4,1,   307200,
> f2289ce67d1f24230cee1219dc2557a5

Thank you so much. Adding `scale=flags=bicubic` into my workflow produced 
consistent results. I'm still a bit uncertain why these two routes opt for 
different defaults, but this method allows them to be forced to the same 
default. Thanks again.
Dave Rice

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Re: [FFmpeg-user] differences between -vf and -filter_complex

2017-05-10 Thread Gyan 
On Wed, May 10, 2017 at 9:08 PM, Gyan  wrote:

>
>
> On Wed, May 10, 2017 at 8:17 PM, Dave Rice  wrote:
>
>>
>> For instance if I use format=yuv422p10le within -vf and within
>> -filter_complex the output is different. Is there something else I should
>> add to the filterchain to get consistent results.
>>
>> Best Regards,
>> Dave Rice
>>
>
> These two commands produce the same result:

ffmpeg -f lavfi -i testsrc2=r=1:d=5 -f lavfi -i testsrc2=r=1:d=5
-filter_complex scale=flags=bicubic,format=yuv422p10le  -f framemd5 -

ffmpeg -f lavfi -i testsrc2=r=1:d=5 -f lavfi -i testsrc2=r=1:d=5 -vf
scale=flags=bicubic,format=yuv422p10le -f framemd5 -


0,  0,  0,1,   307200,
b8ef3d6c4fc96d70fafbf20afd8f9cdf
0,  1,  1,1,   307200,
dada36d572dfe9b75b799b207e54590b
0,  2,  2,1,   307200,
f6b2bd8a2cafbe7261bd97cd41930ad3
0,  3,  3,1,   307200,
5efbf76a4e8af59271de6a3e8cfb63f4
0,  4,  4,1,   307200,
f2289ce67d1f24230cee1219dc2557a5
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Re: [FFmpeg-user] differences between -vf and -filter_complex

2017-05-10 Thread Gyan 
On Wed, May 10, 2017 at 8:17 PM, Dave Rice  wrote:

>
> For instance if I use format=yuv422p10le within -vf and within
> -filter_complex the output is different. Is there something else I should
> add to the filterchain to get consistent results.
>
> Best Regards,
> Dave Rice
>

Does not affect conversions to RGB formats of any bit depth. Does not
affect conversions if chroma sampling scheme is the same i.e. -f lavfi -i
testsrc2=r=1:d=5,format=yuv422p or yuv422p16le. Also does not affect if
only the luma plane is converted. So this has to do with converting the
chroma sampling frequency in swscale.
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[FFmpeg-user] differences between -vf and -filter_complex

2017-05-10 Thread Dave Rice 
Hi ffmpeg-user,

In some cases I've been using -vf and -filter_complex interchangeability but 
notice that some behavior is unexpectedly different.

For instance if I use format=yuv422p10le within -vf and within -filter_complex 
the output is different. Is there something else I should add to the 
filterchain to get consistent results.

Below is the output of:
ffmpeg -f lavfi -i testsrc2=r=1:d=5 -vf format=yuv422p10le -f 
framemd5 -
and
ffmpeg -f lavfi -i testsrc2=r=1:d=5 -filter_complex format=yuv422p10le -f 
framemd5 -

The output framemd5 do not match and there is not minor differences in the 
pixel values. Is this expected? Any recommendations to get the same result when 
using format=yuv422p10le in both -vf and -filter_complex? Which output is 
correct?

ffmpeg -f lavfi -i testsrc2=r=1:d=5 -vf format=yuv422p10le -f framemd5 -
ffmpeg version N-47211-g164e277326 Copyright (c) 2000-2017 the FFmpeg developers
  built with Apple LLVM version 8.1.0 (clang-802.0.38)
  configuration: --prefix=/usr/local/Cellar/ffmpeg/HEAD-164e277 --enable-shared 
--enable-pthreads --enable-gpl --enable-version3 --enable-hardcoded-tables 
--enable-avresample --cc=clang --host-cflags= --host-ldflags= --enable-ffplay 
--enable-libfreetype --enable-libmp3lame --enable-libopus --enable-libtesseract 
--enable-libvpx --enable-libx264 --enable-libxvid --enable-opencl 
--disable-lzma --enable-vda
  libavutil  55. 62.100 / 55. 62.100
  libavcodec 57. 95.100 / 57. 95.100
  libavformat57. 72.101 / 57. 72.101
  libavdevice57.  7.100 / 57.  7.100
  libavfilter 6. 88.100 /  6. 88.100
  libavresample   3.  6.  0 /  3.  6.  0
  libswscale  4.  7.101 /  4.  7.101
  libswresample   2.  8.100 /  2.  8.100
  libpostproc54.  6.100 / 54.  6.100
[opencl @ 0x10fe94d68] Same kernel code has been registered
Last message repeated 1 times
Input #0, lavfi, from 'testsrc2=r=1:d=5':
  Duration: N/A, start: 0.00, bitrate: N/A
Stream #0:0: Video: rawvideo (I420 / 0x30323449), yuv420p, 320x240 [SAR 1:1 
DAR 4:3], 1 fps, 1 tbr, 1 tbn, 1 tbc
Stream mapping:
  Stream #0:0 -> #0:0 (rawvideo (native) -> rawvideo (native))
Press [q] to stop, [?] for help
#format: frame checksums
#version: 2
#hash: MD5
#software: Lavf57.72.101
#tb 0: 1/1
#media_type 0: video
#codec_id 0: rawvideo
#dimensions 0: 320x240
#sar 0: 1/1
#stream#, dts,pts, duration, size, hash
Output #0, framemd5, to 'pipe:':
  Metadata:
encoder : Lavf57.72.101
Stream #0:0: Video: rawvideo (Y3[10][10] / 0xA0A3359), yuv422p10le, 320x240 
[SAR 1:1 DAR 4:3], q=2-31, 1536 kb/s, 1 fps, 1 tbn, 1 tbc
Metadata:
  encoder : Lavc57.95.100 rawvideo
0,  0,  0,1,   307200, b8ef3d6c4fc96d70fafbf20afd8f9cdf
0,  1,  1,1,   307200, dada36d572dfe9b75b799b207e54590b
0,  2,  2,1,   307200, f6b2bd8a2cafbe7261bd97cd41930ad3
0,  3,  3,1,   307200, 5efbf76a4e8af59271de6a3e8cfb63f4
0,  4,  4,1,   307200, f2289ce67d1f24230cee1219dc2557a5
frame=5 fps=0.0 q=-0.0 Lsize=   1kB time=00:00:05.00 bitrate=   
1.0kbits/s speed= 754x
video:1500kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing 
overhead: unknown


ffmpeg -f lavfi -i testsrc2=r=1:d=5 -filter_complex format=yuv422p10le -f 
framemd5 -
ffmpeg version N-47211-g164e277326 Copyright (c) 2000-2017 the FFmpeg developers
  built with Apple LLVM version 8.1.0 (clang-802.0.38)
  configuration: --prefix=/usr/local/Cellar/ffmpeg/HEAD-164e277 --enable-shared 
--enable-pthreads --enable-gpl --enable-version3 --enable-hardcoded-tables 
--enable-avresample --cc=clang --host-cflags= --host-ldflags= --enable-ffplay 
--enable-libfreetype --enable-libmp3lame --enable-libopus --enable-libtesseract 
--enable-libvpx --enable-libx264 --enable-libxvid --enable-opencl 
--disable-lzma --enable-vda
  libavutil  55. 62.100 / 55. 62.100
  libavcodec 57. 95.100 / 57. 95.100
  libavformat57. 72.101 / 57. 72.101
  libavdevice57.  7.100 / 57.  7.100
  libavfilter 6. 88.100 /  6. 88.100
  libavresample   3.  6.  0 /  3.  6.  0
  libswscale  4.  7.101 /  4.  7.101
  libswresample   2.  8.100 /  2.  8.100
  libpostproc54.  6.100 / 54.  6.100
[opencl @ 0x1026d6d68] Same kernel code has been registered
Last message repeated 1 times
Input #0, lavfi, from 'testsrc2=r=1:d=5':
  Duration: N/A, start: 0.00, bitrate: N/A
Stream #0:0: Video: rawvideo (I420 / 0x30323449), yuv420p, 320x240 [SAR 1:1 
DAR 4:3], 1 fps, 1 tbr, 1 tbn, 1 tbc
Stream mapping:
  Stream #0:0 (rawvideo) -> format
  format -> Stream #0:0 (rawvideo)
Press [q] to stop, [?] for help
#format: frame checksums
#version: 2
#hash: MD5
#software: Lavf57.72.101
#tb 0: 1/1
#media_type 0: video
#codec_id 0: rawvideo
#dimensions 0: 320x240
#sar 0: 1/1
#stream#, dts,pts, duration, size, hash
Output #0, framemd5, to 'pipe:':
  Metadata:
encoder : Lavf57.72.101