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>

Reviewed-by: James Zern <jzern@google.com>
Signed-off-by: James Almer <jamrial@gmail.com>

Signed-off-by: Diego Biurrun <diego@biurrun.de>

Signed-off-by: Anton Khirnov <anton@khirnov.net>

Reviewed-by: James Zern <jzern@google.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Reviewed-by: James Zern <jzern@google.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

The Windows runtime aborts if it finds %t or %z.
Fixes ticket #3472.

Reviewed-by: Ronald Bultje

Reviewed-by: James Zern <jzern@google.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Signed-off-by: Martin Storsjö <martin@martin.st>

Signed-off-by: James Almer <jamrial@gmail.com>
Reviewed-by: James Zern <jzern@google.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Signed-off-by: Diego Biurrun <diego@biurrun.de>

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>

this is valid for both vp8 & vp9 and necessary for lossless in the
latter
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

same as their vpxenc equivalents:
-lossless
-tile-columns
-tile-rows
-frame-parallel
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

the current options are left for both to provide command line compatibility
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 should fix an infinite loop with -h full

Found-by: <Foofie>
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/wCP1ySigned-off-by: Vignesh Venkatasubramanian <vigneshv@google.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

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>

Allow setting the min quantizer to 0 instead of 1 (libvpx allows 0); fixes #2136
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Support older libvpx versions.

This feature is experimental use at your risk

Signed-off-by: Martin Storsjö <martin@martin.st>

The CQ mode was introduced in libvpx 0.9.6.
Signed-off-by: Martin Storsjö <martin@martin.st>

Fixes CID733795
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Signed-off-by: Martin Storsjö <martin@martin.st>

Signed-off-by: Martin Storsjö <martin@martin.st>

Signed-off-by: Martin Storsjö <martin@martin.st>

Also print a warning if neither quality nor bitrate is specified
and use the libvpx default bitrate in this case.

The idea of using the default bitrate is from Luca Barbato
Reviewed-by: James Zern <jzern@google.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Reviewed-by: James Zern <jzern@google.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Signed-off-by: Luca Barbato <lu_zero@gentoo.org>