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  1. 08 Nov, 2019 1 commit
  3. 07 Nov, 2019 1 commit
    • Guo, Yejun's avatar
      avfilter/vf_dnn_processing: add a generic filter for image proccessing with dnn networks · 4d980a8c
      Guo, Yejun authored 
      This filter accepts all the dnn networks which do image processing.
Currently, frame with formats rgb24 and bgr24 are supported. Other
formats such as gray and YUV will be supported next. The dnn network
can accept data in float32 or uint8 format. And the dnn network can
change frame size.

The following is a python script to halve the value of the first
channel of the pixel. It demos how to setup and execute dnn model
with python+tensorflow. It also generates .pb file which will be
used by ffmpeg.

import tensorflow as tf
import numpy as np
import imageio
in_img = imageio.imread('in.bmp')
in_img = in_img.astype(np.float32)/255.0
in_data = in_img[np.newaxis, :]
filter_data = np.array([0.5, 0, 0, 0, 1., 0, 0, 0, 1.]).reshape(1,1,3,3).astype(np.float32)
filter = tf.Variable(filter_data)
x = tf.placeholder(tf.float32, shape=[1, None, None, 3], name='dnn_in')
y = tf.nn.conv2d(x, filter, strides=[1, 1, 1, 1], padding='VALID', name='dnn_out')
sess=tf.Session()
sess.run(tf.global_variables_initializer())
output = sess.run(y, feed_dict={x: in_data})
graph_def = tf.graph_util.convert_variables_to_constants(sess, sess.graph_def, ['dnn_out'])
tf.train.write_graph(graph_def, '.', 'halve_first_channel.pb', as_text=False)
output = output * 255.0
output = output.astype(np.uint8)
imageio.imsave("out.bmp", np.squeeze(output))

To do the same thing with ffmpeg:
- generate halve_first_channel.pb with the above script
- generate halve_first_channel.model with tools/python/convert.py
- try with following commands
  ./ffmpeg -i input.jpg -vf dnn_processing=model=halve_first_channel.model:input=dnn_in:output=dnn_out:fmt=rgb24:dnn_backend=native -y out.native.png
  ./ffmpeg -i input.jpg -vf dnn_processing=model=halve_first_channel.pb:input=dnn_in:output=dnn_out:fmt=rgb24:dnn_backend=tensorflow -y out.tf.png
Signed-off-by: 's avatarGuo, Yejun <yejun.guo@intel.com>
Signed-off-by: 's avatarPedro Arthur <bygrandao@gmail.com>
      4d980a8c
  5. 06 Nov, 2019 1 commit
  7. 05 Nov, 2019 4 commits
  9. 04 Nov, 2019 5 commits
  11. 03 Nov, 2019 1 commit
    • Zhong Li's avatar
      lavc/qsvenc: enable vp9 encoder · 33583803
      Zhong Li authored 
      1. must enable low_power mode since just VDENC can be supported by iHD
driver right now
2. Coding option1 and extra_data are not supported by MSDK
3. IVF header will be inserted in MSDK by default, but it is not needed
for FFmpeg, so disable it.
Signed-off-by: 's avatarZhong Li <zhongli_dev@126.com>
      33583803
  13. 30 Oct, 2019 1 commit
  15. 26 Oct, 2019 1 commit
    • ManojGuptaBonda's avatar
      Add support for VP9 VDPAU hwaccel decode · 1054752c
      ManojGuptaBonda authored 
      Support for VDPAU accelerated VP9 decoding was added with libvdpau-1.3.
Support for the same in ffmpeg is added with this patch. Profiles
related to VDPAU VP9 can be found in latest vdpau.h present in
libvdpau-1.3. DRC clips are not supported yet due to
http://trac.ffmpeg.org/ticket/8068

Add VP9 VDPAU to list of hwaccels and supported formats
Added file vdpau_vp9.c and Modified configure to add VDPAU VP9 support.
Mapped VP9 profiles to VDPAU VP9 profiles. Populated the codec specific
params that need to be passed to VDPAU.
Signed-off-by: 's avatarPhilip Langdale <philipl@overt.org>
      1054752c
  17. 09 Sep, 2019 1 commit
  19. 05 Sep, 2019 2 commits
  21. 03 Sep, 2019 1 commit
  23. 02 Sep, 2019 3 commits
    • Andriy Gelman's avatar
      avformat: Add ZeroMQ as a protocol · ef43a4d6
      Andriy Gelman authored 
      When ffmpeg was streaming, multiple clients were only supported by using a
multicast destination address. An alternative was to stream to a server which
re-distributes the content. This commit adds ZeroMQ as a protocol, which allows
multiple clients to connect to a single ffmpeg instance.
Signed-off-by: 's avatarMarton Balint <cus@passwd.hu>
      ef43a4d6
    • Andrey Semashev's avatar
      configure: Update libmysofa check with a new symbol. · 7ea2710e
      Andrey Semashev authored 
      The current code in libavfilter/af_sofalizer.c requires
mysofa_neighborhood_init_withstepdefine function, which only appeared
in libmysofa 0.7. Use this function in configure script to bail out
early if a too old libmysofa is found in the system instead of failing
at compile time.
      7ea2710e
    • Nick Renieris's avatar
      lavc/tiff: Decode embedded JPEGs in DNG images · c31c7089
      Nick Renieris authored 
      Used a technique similar to lavc/tdsc.c for invoking the MJPEG decoder.

This commit adds support for:
- DNG tiles
- DNG tile huffman lossless JPEG decoding
- DNG 8-bpp ("packed" as dcraw calls it) decoding
- DNG color scaling [1]
  - LinearizationTable tag
  - BlackLevel tag

[1]: As specified in the DNG Specification - Chapter 5
Signed-off-by: 's avatarNick Renieris <velocityra@gmail.com>
      c31c7089
  25. 29 Aug, 2019 2 commits
    • Paul B Mahol's avatar
      avcodec: add IMM5 decoder · 7c0b3ba7
      Paul B Mahol authored
      7c0b3ba7
    • Aman Gupta's avatar
      configure: fix --enable-omx compile on raspberry pi · 59e651c0
      Aman Gupta authored 
      Many ffmpeg + rpi compilation guides on the internet recommend
using `./configure --enable-omx --enable-omx-rpi`. This fails
to find the IL OMX headers on device because the omx require_headers
check happens first before the add_cflags in omx_rpi.

A workaround is to use `./configure --enable-omx-rpi` only, since
omx_rpi already implies omx. But because many users expect to use
existing scripts and commands, we swap the order here so omx_rpi
special cases are applied first.

In the past this wasn't an issue because users noticed the OMX_Core.h
missing error and installed libomxil-bellagio-dev. But since
76c82843, the rpi specific headers from /opt/vc/include/IL
are required.
Signed-off-by: 's avatarAman Gupta <aman@tmm1.net>
      59e651c0
  27. 22 Aug, 2019 1 commit
  29. 20 Aug, 2019 3 commits
  31. 15 Aug, 2019 1 commit
  33. 11 Aug, 2019 1 commit
  35. 05 Aug, 2019 1 commit
  37. 04 Aug, 2019 1 commit
    • Rodger Combs's avatar
      build: add support for building CUDA files with clang · 01994c93
      Rodger Combs authored 
      This avoids using the CUDA SDK at all; instead, we provide a minimal
reimplementation of the basic functionality that lavfi actually uses.
It generates very similar code to what NVCC produces.

The header contains no implementation code derived from the SDK.
The function and type declarations are derived from the SDK only to the
extent required to build a compatible implementation. This is generally
accepted to qualify as fair use.

Because this option does not require the proprietary SDK, it does not require
the "--enable-nonfree" flag in configure.
Signed-off-by: 's avatarTimo Rothenpieler <timo@rothenpieler.org>
      01994c93
  39. 10 Jul, 2019 1 commit
  41. 08 Jul, 2019 1 commit
  43. 24 Jun, 2019 1 commit
    • Alexander Strasser's avatar
      configure: print_in_columns: Replace pr with awk · 99147312
      Alexander Strasser authored 
      Get rid of pr dependency and write the columns strictly
alphabetical without page size considerations (POSIX
specifies 66 lines as default).

Setting the page size via pr's -l option was considered,
but as there is issue #5680 which wants to avoid pr
mainly because it's not in busybox, we chose to replace
pr instead.

Before pr would attempt to write pages, thus if a page
boundary was reached, the output looked confusing as one
couldn't see there was a new page and the alphabetical
order was disrupted when scanning down one of the columns.

This change is based on a shell implementation submitted
before by Yejun.

Possible differences to the current version using pr:
1. pr implementations should truncate items to not overflow columns;
   depending on how it's done not truncating shall be better IMHO.
2. pr implementations might balance columns differently;
   we use minimum number of lines and might end up not
   using all columns or might have lesser entries in the
   last column(s)
3. we use spaces only for padding the columns; at least the GNU pr
   version on my system also by default stuffs in tabs in addition
   to a single space in between columns. I don't see that this
   behaviour is demanded by POSIX, though I might be very well
   overlooking things. Anyway for our use case I can't see a need
   for having the additional tabs, or why it would be better compared
   to padding with spaces only.

Fixes output for sizes with width < column width, too.

Fixes remaining part of ticket #5680

Contributor: Guo, Yejun <yejun.guo@intel.com>
      99147312
  45. 12 Jun, 2019 2 commits
  47. 24 May, 2019 1 commit
  49. 15 May, 2019 1 commit
  51. 14 May, 2019 1 commit