Bump the minimum libvpx version to 1.3.0 and rework the configure logic
to fail only if no decoders and encoders are found.
Based on the original patch from Vittorio.
Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
the vp9 bitstream supports 8 values:
unknown (default), bt601, bt709, smpte170, smpte240, bt2020, reserved
and sRGB.
Reviewed-by: Ronald S. Bultje <rsbultje@gmail.com>
Signed-off-by: James Zern <jzern@google.com>
this quiets a warning:
Failed to set VP8E_SET_NOISE_SENSITIVITY codec control: Unspecified
internal error
Reviewed-by: Michael Niedermayer <michaelni@gmx.at>
Signed-off-by: James Zern <jzern@google.com>
Patch to support VP9 encoding with new profiles 1-3.
Profile 1 (8-bit 422/444) should work with default libvpx
configuration.
However you will need to configure libvpx with
--enable-vp9-highbitdepth before building and linking
with ffmpeg for profile 2 (10-/12-bit 420) and profile 3
(10-/12-bit 422/444) encoding.
You may use the appropriate profile option on the
command line:
-profile:v 1 for 422/444 8-bit encoding
-profile:v 2 for 420 10-/12- bit encoding
-profile:v 3 for 422/444 10-/12-bit encoding
If you do not use the -profile:v option, it will be deduced
from the source format.
Signed-off-by: James Zern <jzern@google.com>
This buffer is resized when vpx_codec_get_cx_data() returns a
VPX_CODEC_STATS_PKT packet.
CC: libav-stable@libav.org
Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>
Default libvpx msvc buils used module definition to export symbols.
These symbols are exported as pointers to data which dont link when
referenced directly.
Reviewed-by: Timothy Gu <timothygu99@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Currently, this option is accessed through AVCodecContext.mb_threshold,
which originally controlled reusing MB data when transcoding mpeg to
mpeg. Since the libvpx meaning is completely different from the original
mpegvideo meaning, it is better to use a separate private option for
this.
Changes in the parameter mapping for libvpx to support the constant
quality mode in VP9. The assumption in the patch is that if crf is
provided but bitrate is 0, then the 'constant quality' mode of VP9
is used. However if both are present, the 'constrained quality' mode
is used as before.
Reviewed-by: James Zern <jzern@google.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
3 -> 1. vp8 encoding speed has improved since the initial release and 1
is a reasonable default for vp9 as well.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
When encoding alpha channel in libvpx, the stride isn't set
properly for the alpha encoder. Fixing it.
Signed-off-by: Vignesh Venkatasubramanian <vigneshv@google.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This patch adds support for encoding VP8 files with alpha. The alpha channel
is encoded separately and the output is placed in AVPacket's side_data. The
muxer then muxes it into the BlockAdditional element of the matroska container.
More details on spec here: http://goo.gl/wCP1y
Signed-off-by: Vignesh Venkatasubramanian <vigneshv@google.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Check whether CQ level is within qmin..qmax and abort on error. If this isn't properly
set, encoding will fail at the first frame.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Luca Barbato
James Zern
James Almer
Deb Mukherjee
Michael Niedermayer
Vittorio Giovara
Clément Bœsch
Matt Oliver
Anton Khirnov
Stefano Sabatini
Gabriel Dume
Rafaël Carré
Carl Eugen Hoyos
Alexandra Khirnova
Guillaume Martres
Diego Biurrun
Vignesh Venkatasubramanian
Pascal Massimino
slhck
Martin Storsjö