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https://github.com/FFmpeg/FFmpeg.git
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acca56d962
Chrome canary now supports decoding of VP9 streams with alpha channel [1]. Add support to ffmpeg for creating such files. [1] https://codereview.chromium.org/2096813002/ Reviewed-by: James Zern <jzern@google.com> Signed-off-by: Vignesh Venkatasubramanian <vigneshv@google.com>
148 lines
5.2 KiB
C
148 lines
5.2 KiB
C
/*
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* Copyright (c) 2013 Guillaume Martres <smarter@ubuntu.com>
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*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include <vpx/vpx_codec.h>
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#include "libvpx.h"
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#include "config.h"
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#if CONFIG_LIBVPX_VP9_ENCODER
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#include <vpx/vpx_encoder.h>
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#include <vpx/vp8cx.h>
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#endif
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static const enum AVPixelFormat vp9_pix_fmts_def[] = {
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AV_PIX_FMT_YUV420P,
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AV_PIX_FMT_YUVA420P,
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AV_PIX_FMT_NONE
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};
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#if CONFIG_LIBVPX_VP9_ENCODER
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static const enum AVPixelFormat vp9_pix_fmts_highcol[] = {
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AV_PIX_FMT_YUV420P,
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AV_PIX_FMT_YUVA420P,
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AV_PIX_FMT_YUV422P,
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AV_PIX_FMT_YUV440P,
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AV_PIX_FMT_YUV444P,
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#if VPX_IMAGE_ABI_VERSION >= 3
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AV_PIX_FMT_GBRP,
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#endif
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AV_PIX_FMT_NONE
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};
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static const enum AVPixelFormat vp9_pix_fmts_highbd[] = {
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AV_PIX_FMT_YUV420P,
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AV_PIX_FMT_YUVA420P,
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AV_PIX_FMT_YUV422P,
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AV_PIX_FMT_YUV440P,
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AV_PIX_FMT_YUV444P,
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AV_PIX_FMT_YUV420P10,
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AV_PIX_FMT_YUV422P10,
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AV_PIX_FMT_YUV440P10,
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AV_PIX_FMT_YUV444P10,
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AV_PIX_FMT_YUV420P12,
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AV_PIX_FMT_YUV422P12,
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AV_PIX_FMT_YUV440P12,
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AV_PIX_FMT_YUV444P12,
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#if VPX_IMAGE_ABI_VERSION >= 3
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AV_PIX_FMT_GBRP,
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AV_PIX_FMT_GBRP10,
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AV_PIX_FMT_GBRP12,
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#endif
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AV_PIX_FMT_NONE
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};
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#endif
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av_cold void ff_vp9_init_static(AVCodec *codec)
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{
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if ( vpx_codec_version_major() < 1
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|| (vpx_codec_version_major() == 1 && vpx_codec_version_minor() < 3))
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codec->capabilities |= AV_CODEC_CAP_EXPERIMENTAL;
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codec->pix_fmts = vp9_pix_fmts_def;
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#if CONFIG_LIBVPX_VP9_ENCODER
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if ( vpx_codec_version_major() > 1
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|| (vpx_codec_version_major() == 1 && vpx_codec_version_minor() >= 4)) {
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#ifdef VPX_CODEC_CAP_HIGHBITDEPTH
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vpx_codec_caps_t codec_caps = vpx_codec_get_caps(vpx_codec_vp9_cx());
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if (codec_caps & VPX_CODEC_CAP_HIGHBITDEPTH)
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codec->pix_fmts = vp9_pix_fmts_highbd;
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else
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#endif
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codec->pix_fmts = vp9_pix_fmts_highcol;
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}
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#endif
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}
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#if 0
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enum AVPixelFormat ff_vpx_imgfmt_to_pixfmt(vpx_img_fmt_t img)
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{
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switch (img) {
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case VPX_IMG_FMT_RGB24: return AV_PIX_FMT_RGB24;
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case VPX_IMG_FMT_RGB565: return AV_PIX_FMT_RGB565BE;
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case VPX_IMG_FMT_RGB555: return AV_PIX_FMT_RGB555BE;
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case VPX_IMG_FMT_UYVY: return AV_PIX_FMT_UYVY422;
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case VPX_IMG_FMT_YUY2: return AV_PIX_FMT_YUYV422;
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case VPX_IMG_FMT_YVYU: return AV_PIX_FMT_YVYU422;
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case VPX_IMG_FMT_BGR24: return AV_PIX_FMT_BGR24;
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case VPX_IMG_FMT_ARGB: return AV_PIX_FMT_ARGB;
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case VPX_IMG_FMT_ARGB_LE: return AV_PIX_FMT_BGRA;
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case VPX_IMG_FMT_RGB565_LE: return AV_PIX_FMT_RGB565LE;
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case VPX_IMG_FMT_RGB555_LE: return AV_PIX_FMT_RGB555LE;
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case VPX_IMG_FMT_I420: return AV_PIX_FMT_YUV420P;
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case VPX_IMG_FMT_I422: return AV_PIX_FMT_YUV422P;
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case VPX_IMG_FMT_I444: return AV_PIX_FMT_YUV444P;
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case VPX_IMG_FMT_444A: return AV_PIX_FMT_YUVA444P;
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#if VPX_IMAGE_ABI_VERSION >= 3
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case VPX_IMG_FMT_I440: return AV_PIX_FMT_YUV440P;
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case VPX_IMG_FMT_I42016: return AV_PIX_FMT_YUV420P16BE;
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case VPX_IMG_FMT_I42216: return AV_PIX_FMT_YUV422P16BE;
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case VPX_IMG_FMT_I44416: return AV_PIX_FMT_YUV444P16BE;
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#endif
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default: return AV_PIX_FMT_NONE;
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}
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}
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vpx_img_fmt_t ff_vpx_pixfmt_to_imgfmt(enum AVPixelFormat pix)
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{
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switch (pix) {
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case AV_PIX_FMT_RGB24: return VPX_IMG_FMT_RGB24;
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case AV_PIX_FMT_RGB565BE: return VPX_IMG_FMT_RGB565;
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case AV_PIX_FMT_RGB555BE: return VPX_IMG_FMT_RGB555;
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case AV_PIX_FMT_UYVY422: return VPX_IMG_FMT_UYVY;
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case AV_PIX_FMT_YUYV422: return VPX_IMG_FMT_YUY2;
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case AV_PIX_FMT_YVYU422: return VPX_IMG_FMT_YVYU;
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case AV_PIX_FMT_BGR24: return VPX_IMG_FMT_BGR24;
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case AV_PIX_FMT_ARGB: return VPX_IMG_FMT_ARGB;
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case AV_PIX_FMT_BGRA: return VPX_IMG_FMT_ARGB_LE;
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case AV_PIX_FMT_RGB565LE: return VPX_IMG_FMT_RGB565_LE;
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case AV_PIX_FMT_RGB555LE: return VPX_IMG_FMT_RGB555_LE;
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case AV_PIX_FMT_YUV420P: return VPX_IMG_FMT_I420;
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case AV_PIX_FMT_YUV422P: return VPX_IMG_FMT_I422;
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case AV_PIX_FMT_YUV444P: return VPX_IMG_FMT_I444;
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case AV_PIX_FMT_YUVA444P: return VPX_IMG_FMT_444A;
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#if VPX_IMAGE_ABI_VERSION >= 3
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case AV_PIX_FMT_YUV440P: return VPX_IMG_FMT_I440;
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case AV_PIX_FMT_YUV420P16BE: return VPX_IMG_FMT_I42016;
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case AV_PIX_FMT_YUV422P16BE: return VPX_IMG_FMT_I42216;
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case AV_PIX_FMT_YUV444P16BE: return VPX_IMG_FMT_I44416;
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#endif
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default: return VPX_IMG_FMT_NONE;
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}
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}
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#endif
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