[FFmpeg-devel] [PATCH] libvpxenc: extend auto-alt-ref range
James Zern
jzern at google.com
Fri Nov 9 00:49:19 EET 2018
On Mon, Nov 5, 2018 at 5:03 PM James Zern <jzern at google.com> wrote:
>
> On Mon, Nov 5, 2018 at 5:02 PM James Zern <jzern at google.com> wrote:
> >
> > vp9 now supports [0, 6]
> >
> > Signed-off-by: James Zern <jzern at google.com>
> > ---
> > doc/encoders.texi | 1 +
> > libavcodec/libvpxenc.c | 6 ++++--
> > 2 files changed, 5 insertions(+), 2 deletions(-)
> >
>
> This version moves the option from COMMON_OPTIONS for comparison.
>
I'll submit this version soon if there aren't any comments. vp8 could
be made a bool in a followup at the cost of compatibility, it's been
in its current state for a couple years.
> > diff --git a/doc/encoders.texi b/doc/encoders.texi
> > index 899faac49b..3c6f5cd70b 100644
> > --- a/doc/encoders.texi
> > +++ b/doc/encoders.texi
> > @@ -1641,6 +1641,7 @@ means unlimited.
> > @table @option
> > @item auto-alt-ref
> > Enable use of alternate reference frames (2-pass only).
> > +Values greater than 1 enable multi-layer alternate reference frames (VP9 only).
> > @item arnr-max-frames
> > Set altref noise reduction max frame count.
> > @item arnr-type
> > diff --git a/libavcodec/libvpxenc.c b/libavcodec/libvpxenc.c
> > index 09f7a88452..827df21fa5 100644
> > --- a/libavcodec/libvpxenc.c
> > +++ b/libavcodec/libvpxenc.c
> > @@ -1067,8 +1067,6 @@ static int vpx_encode(AVCodecContext *avctx, AVPacket *pkt,
> > #define VE AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM
> >
> > #define COMMON_OPTIONS \
> > - { "auto-alt-ref", "Enable use of alternate reference " \
> > - "frames (2-pass only)", OFFSET(auto_alt_ref), AV_OPT_TYPE_INT, {.i64 = -1}, -1, 2, VE}, \
> > { "lag-in-frames", "Number of frames to look ahead for " \
> > "alternate reference frame selection", OFFSET(lag_in_frames), AV_OPT_TYPE_INT, {.i64 = -1}, -1, INT_MAX, VE}, \
> > { "arnr-maxframes", "altref noise reduction max frame count", OFFSET(arnr_max_frames), AV_OPT_TYPE_INT, {.i64 = -1}, -1, INT_MAX, VE}, \
> > @@ -1112,6 +1110,8 @@ static int vpx_encode(AVCodecContext *avctx, AVPacket *pkt,
> > #if CONFIG_LIBVPX_VP8_ENCODER
> > static const AVOption vp8_options[] = {
> > COMMON_OPTIONS
> > + { "auto-alt-ref", "Enable use of alternate reference "
> > + "frames (2-pass only)", OFFSET(auto_alt_ref), AV_OPT_TYPE_INT, {.i64 = -1}, -1, 2, VE},
> > { "cpu-used", "Quality/Speed ratio modifier", OFFSET(cpu_used), AV_OPT_TYPE_INT, {.i64 = 1}, -16, 16, VE},
> > LEGACY_OPTIONS
> > { NULL }
> > @@ -1121,6 +1121,8 @@ static const AVOption vp8_options[] = {
> > #if CONFIG_LIBVPX_VP9_ENCODER
> > static const AVOption vp9_options[] = {
> > COMMON_OPTIONS
> > + { "auto-alt-ref", "Enable use of alternate reference "
> > + "frames (2-pass only)", OFFSET(auto_alt_ref), AV_OPT_TYPE_INT, {.i64 = -1}, -1, 6, VE},
> > { "cpu-used", "Quality/Speed ratio modifier", OFFSET(cpu_used), AV_OPT_TYPE_INT, {.i64 = 1}, -8, 8, VE},
> > { "lossless", "Lossless mode", OFFSET(lossless), AV_OPT_TYPE_INT, {.i64 = -1}, -1, 1, VE},
> > { "tile-columns", "Number of tile columns to use, log2", OFFSET(tile_columns), AV_OPT_TYPE_INT, {.i64 = -1}, -1, 6, VE},
> > --
> > 2.19.1.930.g4563a0d9d0-goog
> >
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