Remove false claim that processing in freq domain is
worse quality than processing in time domain.
Signed-off-by: Paul B Mahol <onemda@gmail.com>

Signed-off-by: Paul B Mahol <onemda@gmail.com>

FFT expanded to 2^17.
Signed-off-by: Jovan Zelincevic <jovan.zelincevic@imgtec.com>
Reviewed-by: Nedeljko Babic <Nedeljko.Babic@imgtec.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Otherwise probing and stream analisys will report a correct coded size
but an empty visible size.

Approved by: kieran
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Fixes ticket #5386
Signed-off-by: James Almer <jamrial@gmail.com>

Signed-off-by: Lou Logan <lou@lrcd.com>

Reviewed-by: Hendrik Leppkes <h.leppkes@gmail.com>
Signed-off-by: Marton Balint <cus@passwd.hu>

Signed-off-by: Lou Logan <lou@lrcd.com>

Signed-off-by: Paul B Mahol <onemda@gmail.com>

Signed-off-by: Paul B Mahol <onemda@gmail.com>

Signed-off-by: Paul B Mahol <onemda@gmail.com>

Fixes segfault
Fixes Ticket5333

Regression since bfc8a4daSigned-off-by: Michael Niedermayer <michael@niedermayer.cc>

Without this patch, configure still passes and enables CUDA, no matter
if it was actually found, breaking the build in case it was not.

Signed-off-by: Paul B Mahol <onemda@gmail.com>

Signed-off-by: Paul B Mahol <onemda@gmail.com>

Fixes Ticket5371
Fixes null pointer dereference
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Fixes ticket #5318.
Reviewed-by: Stefano Sabatini <stefasab@gmail.com>
Signed-off-by: Marton Balint <cus@passwd.hu>

Note some tests need vsync drop to produce exact timestamps, these seem not to
need it. quite likely many more dont need it either, ive not checked beyond finding
one that needs it and the ones which have it removed
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Fixes error "libavcodec/audiotoolboxenc.c:294:50: error: use of undeclared
identifier 'kAudioCodecPropertyPacketSizeLimitForVBR'."

That was added to 10.9:
https://developer.apple.com/library/mac/releasenotes/General/APIDiffsMacOSX10_9/AudioUnit.htmlSigned-off-by: Michael Niedermayer <michael@niedermayer.cc>

Reviewed-by: Reimar

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Signed-off-by: Paul B Mahol <onemda@gmail.com>

This silences missing EOC marker when decoding j2k files with Psot set to 0.
Signed-off-by: Paul B Mahol <onemda@gmail.com>

27ms to 26ms with UHD 2160 input.

Signed-off-by: James Almer <jamrial@gmail.com>

Signed-off-by: James Almer <jamrial@gmail.com>

Reviewed-by: maintainer
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

    - Added tests for av_find_info_tag().
    - Added test for av_get_known_color_name()
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Original mail and my own followup on ffmpeg-user earlier today:

I have a device sending out a MJPEG/RTP stream on a low quality setting.
Decoding and displaying the video with libavformat results in a washed
out, low contrast, greyish image. Playing the same stream with VLC results
in proper color representation.

Screenshots for comparison:

  http://zevv.nl/div/libav/shot-ffplay.jpg
  http://zevv.nl/div/libav/shot-vlc.jpg

A pcap capture of a few seconds of video and SDP file for playing the
stream are available at

  http://zevv.nl/div/libav/mjpeg.pcap
  http://zevv.nl/div/libav/mjpeg.sdp

I believe the problem might be in the calculation of the quantization
tables in the function create_default_qtables(), the attached patch
solves the issue for me.

The problem is that the argument 'q' is of the type uint8_t. According to the
JPEG standard, if 1 <= q <= 50, the scale factor 'S' should be 5000 / Q.
Because the create_default_qtables() reuses the variable 'q' to store the
result of this calculation, for small values of q < 19, q wil subsequently
overflow and give wrong results in the calculated quantization tables. The
patch below uses a new variable 'S' (same name as in RFC2435) with the proper
range to store the result of the division.
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Everything except ORing the sign is now done in the LUT.
Signed-off-by: Rostislav Pehlivanov <atomnuker@gmail.com>

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Simplifies code
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>