diff options
Diffstat (limited to 'libavcodec')
| -rw-r--r-- | libavcodec/Makefile | 1 | ||||
| -rw-r--r-- | libavcodec/allcodecs.c | 1 | ||||
| -rw-r--r-- | libavcodec/libaomdec.c | 249 |
3 files changed, 251 insertions, 0 deletions
diff --git a/libavcodec/Makefile b/libavcodec/Makefile index aaef6c3..127f535 100644 --- a/libavcodec/Makefile +++ b/libavcodec/Makefile @@ -939,6 +939,7 @@ OBJS-$(CONFIG_ALAC_AT_ENCODER) += audiotoolboxenc.o OBJS-$(CONFIG_ILBC_AT_ENCODER) += audiotoolboxenc.o OBJS-$(CONFIG_PCM_ALAW_AT_ENCODER) += audiotoolboxenc.o OBJS-$(CONFIG_PCM_MULAW_AT_ENCODER) += audiotoolboxenc.o +OBJS-$(CONFIG_LIBAOM_AV1_DECODER) += libaomdec.o OBJS-$(CONFIG_LIBCELT_DECODER) += libcelt_dec.o OBJS-$(CONFIG_LIBCODEC2_DECODER) += libcodec2.o codec2utils.o OBJS-$(CONFIG_LIBCODEC2_ENCODER) += libcodec2.o codec2utils.o diff --git a/libavcodec/allcodecs.c b/libavcodec/allcodecs.c index 7171959..be7f247 100644 --- a/libavcodec/allcodecs.c +++ b/libavcodec/allcodecs.c @@ -663,6 +663,7 @@ extern AVCodec ff_pcm_mulaw_at_encoder; extern AVCodec ff_pcm_mulaw_at_decoder; extern AVCodec ff_qdmc_at_decoder; extern AVCodec ff_qdm2_at_decoder; +extern AVCodec ff_libaom_av1_decoder; extern AVCodec ff_libcelt_decoder; extern AVCodec ff_libcodec2_encoder; extern AVCodec ff_libcodec2_decoder; diff --git a/libavcodec/libaomdec.c b/libavcodec/libaomdec.c new file mode 100644 index 0000000..5158ea8 --- /dev/null +++ b/libavcodec/libaomdec.c @@ -0,0 +1,249 @@ +/* + * 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 + * AV1 decoder support via libaom + */ + +#include <aom/aom_decoder.h> +#include <aom/aomdx.h> + +#include "libavutil/common.h" +#include "libavutil/imgutils.h" + +#include "avcodec.h" +#include "internal.h" + +typedef struct AV1DecodeContext { + struct aom_codec_ctx decoder; +} AV1DecodeContext; + +static av_cold int aom_init(AVCodecContext *avctx, + const struct aom_codec_iface *iface) +{ + AV1DecodeContext *ctx = avctx->priv_data; + struct aom_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", aom_codec_version_str()); + av_log(avctx, AV_LOG_VERBOSE, "%s\n", aom_codec_build_config()); + + if (aom_codec_dec_init(&ctx->decoder, iface, &deccfg, 0) != AOM_CODEC_OK) { + const char *error = aom_codec_error(&ctx->decoder); + av_log(avctx, AV_LOG_ERROR, "Failed to initialize decoder: %s\n", + error); + return AVERROR(EINVAL); + } + + return 0; +} + +static void image_copy_16_to_8(AVFrame *pic, struct aom_image *img) +{ + int i; + + for (i = 0; i < 3; i++) { + int w = img->d_w; + int h = img->d_h; + int x, y; + + if (i) { + w = (w + img->x_chroma_shift) >> img->x_chroma_shift; + h = (h + img->y_chroma_shift) >> img->y_chroma_shift; + } + + for (y = 0; y < h; y++) { + uint16_t *src = (uint16_t *)(img->planes[i] + y * img->stride[i]); + uint8_t *dst = pic->data[i] + y * pic->linesize[i]; + for (x = 0; x < w; x++) + *dst++ = *src++; + } + } +} + +// returns 0 on success, AVERROR_INVALIDDATA otherwise +static int set_pix_fmt(AVCodecContext *avctx, struct aom_image *img) +{ + static const enum AVColorSpace colorspaces[10] = { + AVCOL_SPC_UNSPECIFIED, AVCOL_SPC_BT470BG, AVCOL_SPC_BT709, AVCOL_SPC_SMPTE170M, + AVCOL_SPC_SMPTE240M, AVCOL_SPC_BT2020_NCL, AVCOL_SPC_BT2020_CL, AVCOL_SPC_RGB, + AVCOL_SPC_ICTCP, AVCOL_SPC_RESERVED + }; + static const enum AVColorRange color_ranges[] = { + AVCOL_RANGE_MPEG, AVCOL_RANGE_JPEG + }; + avctx->color_range = color_ranges[img->range]; + avctx->colorspace = colorspaces[img->cs]; + + switch (img->fmt) { + case AOM_IMG_FMT_I420: + avctx->pix_fmt = AV_PIX_FMT_YUV420P; + return 0; + case AOM_IMG_FMT_I422: + avctx->pix_fmt = AV_PIX_FMT_YUV422P; + return 0; + case AOM_IMG_FMT_I440: + avctx->pix_fmt = AV_PIX_FMT_YUV440P; + return 0; + case AOM_IMG_FMT_I444: + avctx->pix_fmt = avctx->colorspace == AVCOL_SPC_RGB ? + AV_PIX_FMT_GBRP : AV_PIX_FMT_YUV444P; + return 0; + case AOM_IMG_FMT_I42016: + if (img->bit_depth == 8) { + avctx->pix_fmt = AV_PIX_FMT_YUV420P; + return 0; + } else if (img->bit_depth == 10) { + avctx->pix_fmt = AV_PIX_FMT_YUV420P10; + return 0; + } else if (img->bit_depth == 12) { + avctx->pix_fmt = AV_PIX_FMT_YUV420P12; + return 0; + } else { + return AVERROR_INVALIDDATA; + } + case AOM_IMG_FMT_I42216: + if (img->bit_depth == 8) { + avctx->pix_fmt = AV_PIX_FMT_YUV422P; + return 0; + } else if (img->bit_depth == 10) { + avctx->pix_fmt = AV_PIX_FMT_YUV422P10; + return 0; + } else if (img->bit_depth == 12) { + avctx->pix_fmt = AV_PIX_FMT_YUV422P12; + return 0; + } else { + return AVERROR_INVALIDDATA; + } + case AOM_IMG_FMT_I44016: + if (img->bit_depth == 8) { + avctx->pix_fmt = AV_PIX_FMT_YUV440P; + return 0; + } else if (img->bit_depth == 10) { + avctx->pix_fmt = AV_PIX_FMT_YUV440P10; + return 0; + } else if (img->bit_depth == 12) { + avctx->pix_fmt = AV_PIX_FMT_YUV440P12; + return 0; + } else { + return AVERROR_INVALIDDATA; + } + case AOM_IMG_FMT_I44416: + if (img->bit_depth == 8) { + avctx->pix_fmt = avctx->colorspace == AVCOL_SPC_RGB ? + AV_PIX_FMT_GBRP : AV_PIX_FMT_YUV444P; + return 0; + } else if (img->bit_depth == 10) { + avctx->pix_fmt = avctx->colorspace == AVCOL_SPC_RGB ? + AV_PIX_FMT_GBRP10 : AV_PIX_FMT_YUV444P10; + return 0; + } else if (img->bit_depth == 12) { + avctx->pix_fmt = avctx->colorspace == AVCOL_SPC_RGB ? + AV_PIX_FMT_GBRP12 : AV_PIX_FMT_YUV444P12; + return 0; + } else { + return AVERROR_INVALIDDATA; + } + + default: + return AVERROR_INVALIDDATA; + } +} + +static int aom_decode(AVCodecContext *avctx, void *data, int *got_frame, + AVPacket *avpkt) +{ + AV1DecodeContext *ctx = avctx->priv_data; + AVFrame *picture = data; + const void *iter = NULL; + struct aom_image *img; + int ret; + + if (aom_codec_decode(&ctx->decoder, avpkt->data, avpkt->size, NULL) != + AOM_CODEC_OK) { + const char *error = aom_codec_error(&ctx->decoder); + const char *detail = aom_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 = aom_codec_get_frame(&ctx->decoder, &iter))) { + if (img->d_w > img->w || img->d_h > img->h) { + av_log(avctx, AV_LOG_ERROR, "Display dimensions %dx%d exceed storage %dx%d\n", + img->d_w, img->d_h, img->w, img->h); + return AVERROR_EXTERNAL; + } + + if ((ret = set_pix_fmt(avctx, img)) < 0) { + av_log(avctx, AV_LOG_ERROR, "Unsupported output colorspace (%d) / bit_depth (%d)\n", + img->fmt, img->bit_depth); + 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; + if ((img->fmt & AOM_IMG_FMT_HIGHBITDEPTH) && img->bit_depth == 8) + image_copy_16_to_8(picture, img); + else + 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 aom_free(AVCodecContext *avctx) +{ + AV1DecodeContext *ctx = avctx->priv_data; + aom_codec_destroy(&ctx->decoder); + return 0; +} + +static av_cold int av1_init(AVCodecContext *avctx) +{ + return aom_init(avctx, &aom_codec_av1_dx_algo); +} + +AVCodec ff_libaom_av1_decoder = { + .name = "libaom-av1", + .long_name = NULL_IF_CONFIG_SMALL("libaom AV1"), + .type = AVMEDIA_TYPE_VIDEO, + .id = AV_CODEC_ID_AV1, + .priv_data_size = sizeof(AV1DecodeContext), + .init = av1_init, + .close = aom_free, + .decode = aom_decode, + .capabilities = AV_CODEC_CAP_AUTO_THREADS | AV_CODEC_CAP_DR1, + .wrapper_name = "libaom", +}; |
