[deb_ffmpeg.git] / ffmpeg / libavcodec / libvpxdec.c

/*
 * 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"

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 (avctx->codec_id == AV_CODEC_ID_VP8 && img->fmt != VPX_IMG_FMT_I420)
        return AVERROR_INVALIDDATA;
    switch (img->fmt) {
        case VPX_IMG_FMT_I420:
            avctx->pix_fmt = AV_PIX_FMT_YUV420P;
            return 0;
#if CONFIG_LIBVPX_VP9_DECODER
        case VPX_IMG_FMT_I422:
            avctx->pix_fmt = AV_PIX_FMT_YUV422P;
            return 0;
        case VPX_IMG_FMT_I444:
            avctx->pix_fmt = AV_PIX_FMT_YUV444P;
            return 0;
#ifdef VPX_IMG_FMT_HIGHBITDEPTH
        case VPX_IMG_FMT_I42016:
            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:
            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;
            }
        case VPX_IMG_FMT_I44416:
            if (img->bit_depth == 10) {
                avctx->pix_fmt = AV_PIX_FMT_YUV444P10LE;
                return 0;
            } else if (img->bit_depth == 12) {
                avctx->pix_fmt = AV_PIX_FMT_YUV444P12LE;
                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   = CODEC_CAP_AUTO_THREADS | 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   = CODEC_CAP_AUTO_THREADS | CODEC_CAP_DR1,
    .init_static_data = ff_vp9_init_static,
};
#endif /* CONFIG_LIBVPX_VP9_DECODER */
Commit	Line	Data
2ba45a60 DM	1	/*
	2	* Copyright (c) 2010, Google, Inc.
	3	*
	4	* This file is part of FFmpeg.
	5	*
	6	* FFmpeg is free software; you can redistribute it and/or
	7	* modify it under the terms of the GNU Lesser General Public
	8	* License as published by the Free Software Foundation; either
	9	* version 2.1 of the License, or (at your option) any later version.
	10	*
	11	* FFmpeg is distributed in the hope that it will be useful,
	12	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	13	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	14	* Lesser General Public License for more details.
	15	*
	16	* You should have received a copy of the GNU Lesser General Public
	17	* License along with FFmpeg; if not, write to the Free Software
	18	* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
	19	*/
	20
	21	/**
	22	* @file
	23	* VP8 decoder support via libvpx
	24	*/
	25
	26	#define VPX_CODEC_DISABLE_COMPAT 1
	27	#include <vpx/vpx_decoder.h>
	28	#include <vpx/vp8dx.h>
	29
	30	#include "libavutil/common.h"
	31	#include "libavutil/imgutils.h"
	32	#include "avcodec.h"
	33	#include "internal.h"
	34	#include "libvpx.h"
	35
	36	typedef struct VP8DecoderContext {
	37	struct vpx_codec_ctx decoder;
	38	} VP8Context;
	39
	40	static av_cold int vpx_init(AVCodecContext *avctx,
	41	const struct vpx_codec_iface *iface)
	42	{
	43	VP8Context *ctx = avctx->priv_data;
	44	struct vpx_codec_dec_cfg deccfg = {
	45	/* token partitions+1 would be a decent choice */
	46	.threads = FFMIN(avctx->thread_count, 16)
	47	};
	48
	49	av_log(avctx, AV_LOG_INFO, "%s\n", vpx_codec_version_str());
	50	av_log(avctx, AV_LOG_VERBOSE, "%s\n", vpx_codec_build_config());
	51
	52	if (vpx_codec_dec_init(&ctx->decoder, iface, &deccfg, 0) != VPX_CODEC_OK) {
	53	const char *error = vpx_codec_error(&ctx->decoder);
	54	av_log(avctx, AV_LOG_ERROR, "Failed to initialize decoder: %s\n",
	55	error);
	56	return AVERROR(EINVAL);
	57	}
	58
2ba45a60 DM	59	return 0;
	60	}
	61
f6fa7814 DM	62	// returns 0 on success, AVERROR_INVALIDDATA otherwise
	63	static int set_pix_fmt(AVCodecContext avctx, struct vpx_image img) {
	64	if (avctx->codec_id == AV_CODEC_ID_VP8 && img->fmt != VPX_IMG_FMT_I420)
	65	return AVERROR_INVALIDDATA;
	66	switch (img->fmt) {
	67	case VPX_IMG_FMT_I420:
	68	avctx->pix_fmt = AV_PIX_FMT_YUV420P;
	69	return 0;
	70	#if CONFIG_LIBVPX_VP9_DECODER
	71	case VPX_IMG_FMT_I422:
	72	avctx->pix_fmt = AV_PIX_FMT_YUV422P;
	73	return 0;
	74	case VPX_IMG_FMT_I444:
	75	avctx->pix_fmt = AV_PIX_FMT_YUV444P;
	76	return 0;
	77	#ifdef VPX_IMG_FMT_HIGHBITDEPTH
	78	case VPX_IMG_FMT_I42016:
	79	if (img->bit_depth == 10) {
	80	avctx->pix_fmt = AV_PIX_FMT_YUV420P10LE;
	81	return 0;
	82	} else if (img->bit_depth == 12) {
	83	avctx->pix_fmt = AV_PIX_FMT_YUV420P12LE;
	84	return 0;
	85	} else {
	86	return AVERROR_INVALIDDATA;
	87	}
	88	case VPX_IMG_FMT_I42216:
	89	if (img->bit_depth == 10) {
	90	avctx->pix_fmt = AV_PIX_FMT_YUV422P10LE;
	91	return 0;
	92	} else if (img->bit_depth == 12) {
	93	avctx->pix_fmt = AV_PIX_FMT_YUV422P12LE;
	94	return 0;
	95	} else {
	96	return AVERROR_INVALIDDATA;
	97	}
	98	case VPX_IMG_FMT_I44416:
	99	if (img->bit_depth == 10) {
	100	avctx->pix_fmt = AV_PIX_FMT_YUV444P10LE;
	101	return 0;
	102	} else if (img->bit_depth == 12) {
	103	avctx->pix_fmt = AV_PIX_FMT_YUV444P12LE;
	104	return 0;
	105	} else {
	106	return AVERROR_INVALIDDATA;
	107	}
	108	#endif
	109	#endif
	110	default:
	111	return AVERROR_INVALIDDATA;
	112	}
	113	}
	114
2ba45a60 DM	115	static int vp8_decode(AVCodecContext *avctx,
	116	void data, int got_frame, AVPacket *avpkt)
	117	{
	118	VP8Context *ctx = avctx->priv_data;
	119	AVFrame *picture = data;
	120	const void *iter = NULL;
	121	struct vpx_image *img;
	122	int ret;
	123
	124	if (vpx_codec_decode(&ctx->decoder, avpkt->data, avpkt->size, NULL, 0) !=
	125	VPX_CODEC_OK) {
	126	const char *error = vpx_codec_error(&ctx->decoder);
	127	const char *detail = vpx_codec_error_detail(&ctx->decoder);
	128
	129	av_log(avctx, AV_LOG_ERROR, "Failed to decode frame: %s\n", error);
	130	if (detail)
	131	av_log(avctx, AV_LOG_ERROR, " Additional information: %s\n",
	132	detail);
	133	return AVERROR_INVALIDDATA;
	134	}
	135
	136	if ((img = vpx_codec_get_frame(&ctx->decoder, &iter))) {
f6fa7814 DM	137	if ((ret = set_pix_fmt(avctx, img)) < 0) {
	138	#ifdef VPX_IMG_FMT_HIGHBITDEPTH
	139	av_log(avctx, AV_LOG_ERROR, "Unsupported output colorspace (%d) / bit_depth (%d)\n",
	140	img->fmt, img->bit_depth);
	141	#else
	142	av_log(avctx, AV_LOG_ERROR, "Unsupported output colorspace (%d) / bit_depth (%d)\n",
	143	img->fmt, 8);
	144	#endif
	145	return ret;
2ba45a60 DM	146	}
	147
	148	if ((int) img->d_w != avctx->width \|\| (int) img->d_h != avctx->height) {
	149	av_log(avctx, AV_LOG_INFO, "dimension change! %dx%d -> %dx%d\n",
	150	avctx->width, avctx->height, img->d_w, img->d_h);
	151	ret = ff_set_dimensions(avctx, img->d_w, img->d_h);
	152	if (ret < 0)
	153	return ret;
	154	}
	155	if ((ret = ff_get_buffer(avctx, picture, 0)) < 0)
	156	return ret;
	157	av_image_copy(picture->data, picture->linesize, (const uint8_t **)img->planes,
	158	img->stride, avctx->pix_fmt, img->d_w, img->d_h);
	159	*got_frame = 1;
	160	}
	161	return avpkt->size;
	162	}
	163
	164	static av_cold int vp8_free(AVCodecContext *avctx)
	165	{
	166	VP8Context *ctx = avctx->priv_data;
	167	vpx_codec_destroy(&ctx->decoder);
	168	return 0;
	169	}
	170
	171	#if CONFIG_LIBVPX_VP8_DECODER
	172	static av_cold int vp8_init(AVCodecContext *avctx)
	173	{
	174	return vpx_init(avctx, &vpx_codec_vp8_dx_algo);
	175	}
	176
	177	AVCodec ff_libvpx_vp8_decoder = {
	178	.name = "libvpx",
	179	.long_name = NULL_IF_CONFIG_SMALL("libvpx VP8"),
	180	.type = AVMEDIA_TYPE_VIDEO,
	181	.id = AV_CODEC_ID_VP8,
	182	.priv_data_size = sizeof(VP8Context),
	183	.init = vp8_init,
	184	.close = vp8_free,
	185	.decode = vp8_decode,
	186	.capabilities = CODEC_CAP_AUTO_THREADS \| CODEC_CAP_DR1,
	187	};
	188	#endif /* CONFIG_LIBVPX_VP8_DECODER */
	189
	190	#if CONFIG_LIBVPX_VP9_DECODER
	191	static av_cold int vp9_init(AVCodecContext *avctx)
	192	{
	193	return vpx_init(avctx, &vpx_codec_vp9_dx_algo);
	194	}
	195
	196	AVCodec ff_libvpx_vp9_decoder = {
	197	.name = "libvpx-vp9",
	198	.long_name = NULL_IF_CONFIG_SMALL("libvpx VP9"),
	199	.type = AVMEDIA_TYPE_VIDEO,
	200	.id = AV_CODEC_ID_VP9,
	201	.priv_data_size = sizeof(VP8Context),
	202	.init = vp9_init,
	203	.close = vp8_free,
	204	.decode = vp8_decode,
	205	.capabilities = CODEC_CAP_AUTO_THREADS \| CODEC_CAP_DR1,
	206	.init_static_data = ff_vp9_init_static,
	207	};
	208	#endif /* CONFIG_LIBVPX_VP9_DECODER */