libavcodec/libvpxdec.c - nest-android-app/ffmpeg - Git at Google

 /*
  * Copyright (c) 2010, Google, Inc.
  *
  * This file is part of FFmpeg.
  *
  * FFmpeg is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
  * License as published by the Free Software Foundation; either
  * version 2.1 of the License, or (at your option) any later version.
  *
  * FFmpeg is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  * Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
  * License along with FFmpeg; if not, write to the Free Software
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  */

 /**
  * @file
  * VP8 decoder support via libvpx
  */

 #define VPX_CODEC_DISABLE_COMPAT 1
 #include <vpx/vpx_decoder.h>
 #include <vpx/vp8dx.h>

 #include "libavutil/common.h"
 #include "libavutil/imgutils.h"
 #include "avcodec.h"
 #include "internal.h"
 #include "libvpx.h"
 #include "profiles.h"

 typedef struct VP8DecoderContext {
     struct vpx_codec_ctx decoder;
 } VP8Context;

 static av_cold int vpx_init(AVCodecContext *avctx,
                             const struct vpx_codec_iface *iface)
 {
     VP8Context *ctx = avctx->priv_data;
     struct vpx_codec_dec_cfg deccfg = {
         /* token partitions+1 would be a decent choice */
         .threads = FFMIN(avctx->thread_count, 16)
     };

     av_log(avctx, AV_LOG_INFO, "%s\n", vpx_codec_version_str());
     av_log(avctx, AV_LOG_VERBOSE, "%s\n", vpx_codec_build_config());

     if (vpx_codec_dec_init(&ctx->decoder, iface, &deccfg, 0) != VPX_CODEC_OK) {
         const char *error = vpx_codec_error(&ctx->decoder);
         av_log(avctx, AV_LOG_ERROR, "Failed to initialize decoder: %s\n",
                error);
         return AVERROR(EINVAL);
     }

     return 0;
 }

 // returns 0 on success, AVERROR_INVALIDDATA otherwise
 static int set_pix_fmt(AVCodecContext *avctx, struct vpx_image *img)
 {
 #if VPX_IMAGE_ABI_VERSION >= 3
     static const enum AVColorSpace colorspaces[8] = {
         AVCOL_SPC_UNSPECIFIED, AVCOL_SPC_BT470BG, AVCOL_SPC_BT709, AVCOL_SPC_SMPTE170M,
         AVCOL_SPC_SMPTE240M, AVCOL_SPC_BT2020_NCL, AVCOL_SPC_RESERVED, AVCOL_SPC_RGB,
     };
 #if VPX_IMAGE_ABI_VERSION >= 4
     static const enum AVColorRange color_ranges[] = {
         AVCOL_RANGE_MPEG, AVCOL_RANGE_JPEG
     };
     avctx->color_range = color_ranges[img->range];
 #endif
     avctx->colorspace = colorspaces[img->cs];
 #endif
     if (avctx->codec_id == AV_CODEC_ID_VP8 && img->fmt != VPX_IMG_FMT_I420)
         return AVERROR_INVALIDDATA;
     switch (img->fmt) {
     case VPX_IMG_FMT_I420:
         if (avctx->codec_id == AV_CODEC_ID_VP9)
             avctx->profile = FF_PROFILE_VP9_0;
         avctx->pix_fmt = AV_PIX_FMT_YUV420P;
         return 0;
 #if CONFIG_LIBVPX_VP9_DECODER
     case VPX_IMG_FMT_I422:
         avctx->profile = FF_PROFILE_VP9_1;
         avctx->pix_fmt = AV_PIX_FMT_YUV422P;
         return 0;
 #if VPX_IMAGE_ABI_VERSION >= 3
     case VPX_IMG_FMT_I440:
         avctx->profile = FF_PROFILE_VP9_1;
         avctx->pix_fmt = AV_PIX_FMT_YUV440P;
         return 0;
 #endif
     case VPX_IMG_FMT_I444:
         avctx->profile = FF_PROFILE_VP9_1;
 #if VPX_IMAGE_ABI_VERSION >= 3
         avctx->pix_fmt = avctx->colorspace == AVCOL_SPC_RGB ?
                          AV_PIX_FMT_GBRP : AV_PIX_FMT_YUV444P;
 #else
         avctx->pix_fmt = AV_PIX_FMT_YUV444P;
 #endif
         return 0;
 #ifdef VPX_IMG_FMT_HIGHBITDEPTH
     case VPX_IMG_FMT_I42016:
         avctx->profile = FF_PROFILE_VP9_2;
         if (img->bit_depth == 10) {
             avctx->pix_fmt = AV_PIX_FMT_YUV420P10LE;
             return 0;
         } else if (img->bit_depth == 12) {
             avctx->pix_fmt = AV_PIX_FMT_YUV420P12LE;
             return 0;
         } else {
             return AVERROR_INVALIDDATA;
         }
     case VPX_IMG_FMT_I42216:
         avctx->profile = FF_PROFILE_VP9_3;
         if (img->bit_depth == 10) {
             avctx->pix_fmt = AV_PIX_FMT_YUV422P10LE;
             return 0;
         } else if (img->bit_depth == 12) {
             avctx->pix_fmt = AV_PIX_FMT_YUV422P12LE;
             return 0;
         } else {
             return AVERROR_INVALIDDATA;
         }
 #if VPX_IMAGE_ABI_VERSION >= 3
     case VPX_IMG_FMT_I44016:
         avctx->profile = FF_PROFILE_VP9_3;
         if (img->bit_depth == 10) {
             avctx->pix_fmt = AV_PIX_FMT_YUV440P10LE;
             return 0;
         } else if (img->bit_depth == 12) {
             avctx->pix_fmt = AV_PIX_FMT_YUV440P12LE;
             return 0;
         } else {
             return AVERROR_INVALIDDATA;
         }
 #endif
     case VPX_IMG_FMT_I44416:
         avctx->profile = FF_PROFILE_VP9_3;
         if (img->bit_depth == 10) {
 #if VPX_IMAGE_ABI_VERSION >= 3
             avctx->pix_fmt = avctx->colorspace == AVCOL_SPC_RGB ?
                              AV_PIX_FMT_GBRP10LE : AV_PIX_FMT_YUV444P10LE;
 #else
             avctx->pix_fmt = AV_PIX_FMT_YUV444P10LE;
 #endif
             return 0;
         } else if (img->bit_depth == 12) {
 #if VPX_IMAGE_ABI_VERSION >= 3
             avctx->pix_fmt = avctx->colorspace == AVCOL_SPC_RGB ?
                              AV_PIX_FMT_GBRP12LE : AV_PIX_FMT_YUV444P12LE;
 #else
             avctx->pix_fmt = AV_PIX_FMT_YUV444P12LE;
 #endif
             return 0;
         } else {
             return AVERROR_INVALIDDATA;
         }
 #endif
 #endif
     default:
         return AVERROR_INVALIDDATA;
     }
 }

 static int vp8_decode(AVCodecContext *avctx,
                       void *data, int *got_frame, AVPacket *avpkt)
 {
     VP8Context *ctx = avctx->priv_data;
     AVFrame *picture = data;
     const void *iter = NULL;
     struct vpx_image *img;
     int ret;

     if (vpx_codec_decode(&ctx->decoder, avpkt->data, avpkt->size, NULL, 0) !=
         VPX_CODEC_OK) {
         const char *error  = vpx_codec_error(&ctx->decoder);
         const char *detail = vpx_codec_error_detail(&ctx->decoder);

         av_log(avctx, AV_LOG_ERROR, "Failed to decode frame: %s\n", error);
         if (detail)
             av_log(avctx, AV_LOG_ERROR, "  Additional information: %s\n",
                    detail);
         return AVERROR_INVALIDDATA;
     }

     if ((img = vpx_codec_get_frame(&ctx->decoder, &iter))) {
         if ((ret = set_pix_fmt(avctx, img)) < 0) {
 #ifdef VPX_IMG_FMT_HIGHBITDEPTH
             av_log(avctx, AV_LOG_ERROR, "Unsupported output colorspace (%d) / bit_depth (%d)\n",
                    img->fmt, img->bit_depth);
 #else
             av_log(avctx, AV_LOG_ERROR, "Unsupported output colorspace (%d) / bit_depth (%d)\n",
                    img->fmt, 8);
 #endif
             return ret;
         }

         if ((int) img->d_w != avctx->width || (int) img->d_h != avctx->height) {
             av_log(avctx, AV_LOG_INFO, "dimension change! %dx%d -> %dx%d\n",
                    avctx->width, avctx->height, img->d_w, img->d_h);
             ret = ff_set_dimensions(avctx, img->d_w, img->d_h);
             if (ret < 0)
                 return ret;
         }
         if ((ret = ff_get_buffer(avctx, picture, 0)) < 0)
             return ret;
         av_image_copy(picture->data, picture->linesize, (const uint8_t **)img->planes,
                       img->stride, avctx->pix_fmt, img->d_w, img->d_h);
         *got_frame           = 1;
     }
     return avpkt->size;
 }

 static av_cold int vp8_free(AVCodecContext *avctx)
 {
     VP8Context *ctx = avctx->priv_data;
     vpx_codec_destroy(&ctx->decoder);
     return 0;
 }

 #if CONFIG_LIBVPX_VP8_DECODER
 static av_cold int vp8_init(AVCodecContext *avctx)
 {
     return vpx_init(avctx, &vpx_codec_vp8_dx_algo);
 }

 AVCodec ff_libvpx_vp8_decoder = {
     .name           = "libvpx",
     .long_name      = NULL_IF_CONFIG_SMALL("libvpx VP8"),
     .type           = AVMEDIA_TYPE_VIDEO,
     .id             = AV_CODEC_ID_VP8,
     .priv_data_size = sizeof(VP8Context),
     .init           = vp8_init,
     .close          = vp8_free,
     .decode         = vp8_decode,
     .capabilities   = AV_CODEC_CAP_AUTO_THREADS | AV_CODEC_CAP_DR1,
 };
 #endif /* CONFIG_LIBVPX_VP8_DECODER */

 #if CONFIG_LIBVPX_VP9_DECODER
 static av_cold int vp9_init(AVCodecContext *avctx)
 {
     return vpx_init(avctx, &vpx_codec_vp9_dx_algo);
 }

 AVCodec ff_libvpx_vp9_decoder = {
     .name           = "libvpx-vp9",
     .long_name      = NULL_IF_CONFIG_SMALL("libvpx VP9"),
     .type           = AVMEDIA_TYPE_VIDEO,
     .id             = AV_CODEC_ID_VP9,
     .priv_data_size = sizeof(VP8Context),
     .init           = vp9_init,
     .close          = vp8_free,
     .decode         = vp8_decode,
     .capabilities   = AV_CODEC_CAP_AUTO_THREADS | AV_CODEC_CAP_DR1,
     .init_static_data = ff_vp9_init_static,
     .profiles       = NULL_IF_CONFIG_SMALL(ff_vp9_profiles),
 };
 #endif /* CONFIG_LIBVPX_VP9_DECODER */
	/*
	* Copyright (c) 2010, Google, Inc.
	*
	* This file is part of FFmpeg.
	*
	* FFmpeg is free software; you can redistribute it and/or
	* modify it under the terms of the GNU Lesser General Public
	* License as published by the Free Software Foundation; either
	* version 2.1 of the License, or (at your option) any later version.
	*
	* FFmpeg is distributed in the hope that it will be useful,
	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	* Lesser General Public License for more details.
	*
	* You should have received a copy of the GNU Lesser General Public
	* License along with FFmpeg; if not, write to the Free Software
	* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
	*/

	/**
	* @file
	* VP8 decoder support via libvpx
	*/

	#define VPX_CODEC_DISABLE_COMPAT 1
	#include <vpx/vpx_decoder.h>
	#include <vpx/vp8dx.h>

	#include "libavutil/common.h"
	#include "libavutil/imgutils.h"
	#include "avcodec.h"
	#include "internal.h"
	#include "libvpx.h"
	#include "profiles.h"

	typedef struct VP8DecoderContext {
	struct vpx_codec_ctx decoder;
	} VP8Context;

	static av_cold int vpx_init(AVCodecContext *avctx,
	const struct vpx_codec_iface *iface)
	{
	VP8Context *ctx = avctx->priv_data;
	struct vpx_codec_dec_cfg deccfg = {
	/* token partitions+1 would be a decent choice */
	.threads = FFMIN(avctx->thread_count, 16)
	};

	av_log(avctx, AV_LOG_INFO, "%s\n", vpx_codec_version_str());
	av_log(avctx, AV_LOG_VERBOSE, "%s\n", vpx_codec_build_config());

	if (vpx_codec_dec_init(&ctx->decoder, iface, &deccfg, 0) != VPX_CODEC_OK) {
	const char *error = vpx_codec_error(&ctx->decoder);
	av_log(avctx, AV_LOG_ERROR, "Failed to initialize decoder: %s\n",
	error);
	return AVERROR(EINVAL);
	}

	return 0;
	}

	// returns 0 on success, AVERROR_INVALIDDATA otherwise
	static int set_pix_fmt(AVCodecContext avctx, struct vpx_image img)
	{
	#if VPX_IMAGE_ABI_VERSION >= 3
	static const enum AVColorSpace colorspaces[8] = {
	AVCOL_SPC_UNSPECIFIED, AVCOL_SPC_BT470BG, AVCOL_SPC_BT709, AVCOL_SPC_SMPTE170M,
	AVCOL_SPC_SMPTE240M, AVCOL_SPC_BT2020_NCL, AVCOL_SPC_RESERVED, AVCOL_SPC_RGB,
	};
	#if VPX_IMAGE_ABI_VERSION >= 4
	static const enum AVColorRange color_ranges[] = {
	AVCOL_RANGE_MPEG, AVCOL_RANGE_JPEG
	};
	avctx->color_range = color_ranges[img->range];
	#endif
	avctx->colorspace = colorspaces[img->cs];
	#endif
	if (avctx->codec_id == AV_CODEC_ID_VP8 && img->fmt != VPX_IMG_FMT_I420)
	return AVERROR_INVALIDDATA;
	switch (img->fmt) {
	case VPX_IMG_FMT_I420:
	if (avctx->codec_id == AV_CODEC_ID_VP9)
	avctx->profile = FF_PROFILE_VP9_0;
	avctx->pix_fmt = AV_PIX_FMT_YUV420P;
	return 0;
	#if CONFIG_LIBVPX_VP9_DECODER
	case VPX_IMG_FMT_I422:
	avctx->profile = FF_PROFILE_VP9_1;
	avctx->pix_fmt = AV_PIX_FMT_YUV422P;
	return 0;
	#if VPX_IMAGE_ABI_VERSION >= 3
	case VPX_IMG_FMT_I440:
	avctx->profile = FF_PROFILE_VP9_1;
	avctx->pix_fmt = AV_PIX_FMT_YUV440P;
	return 0;
	#endif
	case VPX_IMG_FMT_I444:
	avctx->profile = FF_PROFILE_VP9_1;
	#if VPX_IMAGE_ABI_VERSION >= 3
	avctx->pix_fmt = avctx->colorspace == AVCOL_SPC_RGB ?
	AV_PIX_FMT_GBRP : AV_PIX_FMT_YUV444P;
	#else
	avctx->pix_fmt = AV_PIX_FMT_YUV444P;
	#endif
	return 0;
	#ifdef VPX_IMG_FMT_HIGHBITDEPTH
	case VPX_IMG_FMT_I42016:
	avctx->profile = FF_PROFILE_VP9_2;
	if (img->bit_depth == 10) {
	avctx->pix_fmt = AV_PIX_FMT_YUV420P10LE;
	return 0;
	} else if (img->bit_depth == 12) {
	avctx->pix_fmt = AV_PIX_FMT_YUV420P12LE;
	return 0;
	} else {
	return AVERROR_INVALIDDATA;
	}
	case VPX_IMG_FMT_I42216:
	avctx->profile = FF_PROFILE_VP9_3;
	if (img->bit_depth == 10) {
	avctx->pix_fmt = AV_PIX_FMT_YUV422P10LE;
	return 0;
	} else if (img->bit_depth == 12) {
	avctx->pix_fmt = AV_PIX_FMT_YUV422P12LE;
	return 0;
	} else {
	return AVERROR_INVALIDDATA;
	}
	#if VPX_IMAGE_ABI_VERSION >= 3
	case VPX_IMG_FMT_I44016:
	avctx->profile = FF_PROFILE_VP9_3;
	if (img->bit_depth == 10) {
	avctx->pix_fmt = AV_PIX_FMT_YUV440P10LE;
	return 0;
	} else if (img->bit_depth == 12) {
	avctx->pix_fmt = AV_PIX_FMT_YUV440P12LE;
	return 0;
	} else {
	return AVERROR_INVALIDDATA;
	}
	#endif
	case VPX_IMG_FMT_I44416:
	avctx->profile = FF_PROFILE_VP9_3;
	if (img->bit_depth == 10) {
	#if VPX_IMAGE_ABI_VERSION >= 3
	avctx->pix_fmt = avctx->colorspace == AVCOL_SPC_RGB ?
	AV_PIX_FMT_GBRP10LE : AV_PIX_FMT_YUV444P10LE;
	#else
	avctx->pix_fmt = AV_PIX_FMT_YUV444P10LE;
	#endif
	return 0;
	} else if (img->bit_depth == 12) {
	#if VPX_IMAGE_ABI_VERSION >= 3
	avctx->pix_fmt = avctx->colorspace == AVCOL_SPC_RGB ?
	AV_PIX_FMT_GBRP12LE : AV_PIX_FMT_YUV444P12LE;
	#else
	avctx->pix_fmt = AV_PIX_FMT_YUV444P12LE;
	#endif
	return 0;
	} else {
	return AVERROR_INVALIDDATA;
	}
	#endif
	#endif
	default:
	return AVERROR_INVALIDDATA;
	}
	}

	static int vp8_decode(AVCodecContext *avctx,
	void data, int got_frame, AVPacket *avpkt)
	{
	VP8Context *ctx = avctx->priv_data;
	AVFrame *picture = data;
	const void *iter = NULL;
	struct vpx_image *img;
	int ret;

	if (vpx_codec_decode(&ctx->decoder, avpkt->data, avpkt->size, NULL, 0) !=
	VPX_CODEC_OK) {
	const char *error = vpx_codec_error(&ctx->decoder);
	const char *detail = vpx_codec_error_detail(&ctx->decoder);

	av_log(avctx, AV_LOG_ERROR, "Failed to decode frame: %s\n", error);
	if (detail)
	av_log(avctx, AV_LOG_ERROR, " Additional information: %s\n",
	detail);
	return AVERROR_INVALIDDATA;
	}

	if ((img = vpx_codec_get_frame(&ctx->decoder, &iter))) {
	if ((ret = set_pix_fmt(avctx, img)) < 0) {
	#ifdef VPX_IMG_FMT_HIGHBITDEPTH
	av_log(avctx, AV_LOG_ERROR, "Unsupported output colorspace (%d) / bit_depth (%d)\n",
	img->fmt, img->bit_depth);
	#else
	av_log(avctx, AV_LOG_ERROR, "Unsupported output colorspace (%d) / bit_depth (%d)\n",
	img->fmt, 8);
	#endif
	return ret;
	}

	if ((int) img->d_w != avctx->width \|\| (int) img->d_h != avctx->height) {
	av_log(avctx, AV_LOG_INFO, "dimension change! %dx%d -> %dx%d\n",
	avctx->width, avctx->height, img->d_w, img->d_h);
	ret = ff_set_dimensions(avctx, img->d_w, img->d_h);
	if (ret < 0)
	return ret;
	}
	if ((ret = ff_get_buffer(avctx, picture, 0)) < 0)
	return ret;
	av_image_copy(picture->data, picture->linesize, (const uint8_t **)img->planes,
	img->stride, avctx->pix_fmt, img->d_w, img->d_h);
	*got_frame = 1;
	}
	return avpkt->size;
	}

	static av_cold int vp8_free(AVCodecContext *avctx)
	{
	VP8Context *ctx = avctx->priv_data;
	vpx_codec_destroy(&ctx->decoder);
	return 0;
	}

	#if CONFIG_LIBVPX_VP8_DECODER
	static av_cold int vp8_init(AVCodecContext *avctx)
	{
	return vpx_init(avctx, &vpx_codec_vp8_dx_algo);
	}

	AVCodec ff_libvpx_vp8_decoder = {
	.name = "libvpx",
	.long_name = NULL_IF_CONFIG_SMALL("libvpx VP8"),
	.type = AVMEDIA_TYPE_VIDEO,
	.id = AV_CODEC_ID_VP8,
	.priv_data_size = sizeof(VP8Context),
	.init = vp8_init,
	.close = vp8_free,
	.decode = vp8_decode,
	.capabilities = AV_CODEC_CAP_AUTO_THREADS \| AV_CODEC_CAP_DR1,
	};
	#endif /* CONFIG_LIBVPX_VP8_DECODER */

	#if CONFIG_LIBVPX_VP9_DECODER
	static av_cold int vp9_init(AVCodecContext *avctx)
	{
	return vpx_init(avctx, &vpx_codec_vp9_dx_algo);
	}

	AVCodec ff_libvpx_vp9_decoder = {
	.name = "libvpx-vp9",
	.long_name = NULL_IF_CONFIG_SMALL("libvpx VP9"),
	.type = AVMEDIA_TYPE_VIDEO,
	.id = AV_CODEC_ID_VP9,
	.priv_data_size = sizeof(VP8Context),
	.init = vp9_init,
	.close = vp8_free,
	.decode = vp8_decode,
	.capabilities = AV_CODEC_CAP_AUTO_THREADS \| AV_CODEC_CAP_DR1,
	.init_static_data = ff_vp9_init_static,
	.profiles = NULL_IF_CONFIG_SMALL(ff_vp9_profiles),
	};
	#endif /* CONFIG_LIBVPX_VP9_DECODER */