From 283f950a65b187c5a38d1c0322b821812c5d8861 Mon Sep 17 00:00:00 2001 From: Paul B Mahol Date: Thu, 1 Oct 2020 15:54:24 +0200 Subject: avcodec: add Cintel RAW decoder --- libavcodec/Makefile | 1 + libavcodec/allcodecs.c | 1 + libavcodec/codec_desc.c | 7 + libavcodec/codec_id.h | 1 + libavcodec/cri.c | 406 ++++++++++++++++++++++++++++++++++++++++++++++++ libavcodec/version.h | 2 +- 6 files changed, 417 insertions(+), 1 deletion(-) create mode 100644 libavcodec/cri.c (limited to 'libavcodec') diff --git a/libavcodec/Makefile b/libavcodec/Makefile index 421aec984a..2af93586dc 100644 --- a/libavcodec/Makefile +++ b/libavcodec/Makefile @@ -269,6 +269,7 @@ OBJS-$(CONFIG_COMFORTNOISE_DECODER) += cngdec.o celp_filters.o OBJS-$(CONFIG_COMFORTNOISE_ENCODER) += cngenc.o OBJS-$(CONFIG_COOK_DECODER) += cook.o OBJS-$(CONFIG_CPIA_DECODER) += cpia.o +OBJS-$(CONFIG_CRI_DECODER) += cri.o OBJS-$(CONFIG_CSCD_DECODER) += cscd.o OBJS-$(CONFIG_CYUV_DECODER) += cyuv.o OBJS-$(CONFIG_DCA_DECODER) += dcadec.o dca.o dcadata.o dcahuff.o \ diff --git a/libavcodec/allcodecs.c b/libavcodec/allcodecs.c index f055aea207..fb8b2ad035 100644 --- a/libavcodec/allcodecs.c +++ b/libavcodec/allcodecs.c @@ -82,6 +82,7 @@ extern AVCodec ff_cllc_decoder; extern AVCodec ff_comfortnoise_encoder; extern AVCodec ff_comfortnoise_decoder; extern AVCodec ff_cpia_decoder; +extern AVCodec ff_cri_decoder; extern AVCodec ff_cscd_decoder; extern AVCodec ff_cyuv_decoder; extern AVCodec ff_dds_decoder; diff --git a/libavcodec/codec_desc.c b/libavcodec/codec_desc.c index 4c81cb8982..3b148883b8 100644 --- a/libavcodec/codec_desc.c +++ b/libavcodec/codec_desc.c @@ -1819,6 +1819,13 @@ static const AVCodecDescriptor codec_descriptors[] = { .long_name = NULL_IF_CONFIG_SMALL("Argonaut Games Video"), .props = AV_CODEC_PROP_LOSSY, }, + { + .id = AV_CODEC_ID_CRI, + .type = AVMEDIA_TYPE_VIDEO, + .name = "cri", + .long_name = NULL_IF_CONFIG_SMALL("Cintel RAW"), + .props = AV_CODEC_PROP_INTRA_ONLY | AV_CODEC_PROP_LOSSY | AV_CODEC_PROP_LOSSLESS, + }, /* various PCM "codecs" */ { diff --git a/libavcodec/codec_id.h b/libavcodec/codec_id.h index 08c2bbfefb..668c565788 100644 --- a/libavcodec/codec_id.h +++ b/libavcodec/codec_id.h @@ -301,6 +301,7 @@ enum AVCodecID { AV_CODEC_ID_PHOTOCD, AV_CODEC_ID_IPU, AV_CODEC_ID_ARGO, + AV_CODEC_ID_CRI, /* various PCM "codecs" */ AV_CODEC_ID_FIRST_AUDIO = 0x10000, ///< A dummy id pointing at the start of audio codecs diff --git a/libavcodec/cri.c b/libavcodec/cri.c new file mode 100644 index 0000000000..3aad76a008 --- /dev/null +++ b/libavcodec/cri.c @@ -0,0 +1,406 @@ +/* + * CRI image decoder + * + * Copyright (c) 2020 Paul B Mahol + * + * 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 + * Cintel RAW image decoder + */ + +#define BITSTREAM_READER_LE + +#include "libavutil/intfloat.h" +#include "libavutil/display.h" +#include "avcodec.h" +#include "bytestream.h" +#include "get_bits.h" +#include "internal.h" +#include "thread.h" + +typedef struct CRIContext { + AVCodecContext *jpeg_avctx; // wrapper context for MJPEG + AVFrame *jpgframe; // decoded JPEG tile + + GetByteContext gb; + int color_model; + const uint8_t *data; + unsigned data_size; + uint64_t tile_size[4]; +} CRIContext; + +static av_cold int cri_decode_init(AVCodecContext *avctx) +{ + CRIContext *s = avctx->priv_data; + const AVCodec *codec; + int ret; + + s->jpgframe = av_frame_alloc(); + if (!s->jpgframe) + return AVERROR(ENOMEM); + + codec = avcodec_find_decoder(AV_CODEC_ID_MJPEG); + if (!codec) + return AVERROR_BUG; + s->jpeg_avctx = avcodec_alloc_context3(codec); + if (!s->jpeg_avctx) + return AVERROR(ENOMEM); + s->jpeg_avctx->flags = avctx->flags; + s->jpeg_avctx->flags2 = avctx->flags2; + s->jpeg_avctx->dct_algo = avctx->dct_algo; + s->jpeg_avctx->idct_algo = avctx->idct_algo; + ret = ff_codec_open2_recursive(s->jpeg_avctx, codec, NULL); + if (ret < 0) + return ret; + + return 0; +} + +static void unpack_10bit(GetByteContext *gb, uint16_t *dst, int shift, + int w, int h, ptrdiff_t stride) +{ + int count = w * h; + int pos = 0; + + while (count > 0) { + uint32_t a0 = bytestream2_get_le32(gb); + uint32_t a1 = bytestream2_get_le32(gb); + uint32_t a2 = bytestream2_get_le32(gb); + uint32_t a3 = bytestream2_get_le32(gb); + dst[pos] = (((a0 >> 1) & 0xE00) | (a0 & 0x1FF)) << shift; + pos++; + if (pos >= w) { + dst += stride; + pos = 0; + } + dst[pos] = (((a0 >> 13) & 0x3F) | ((a0 >> 14) & 0xFC0)) << shift; + pos++; + if (pos >= w) { + dst += stride; + pos = 0; + } + dst[pos] = (((a0 >> 26) & 7) | ((a1 & 0x1FF) << 3)) << shift; + pos++; + if (pos >= w) { + dst += stride; + pos = 0; + } + dst[pos] = (((a1 >> 10) & 0x1FF) | ((a1 >> 11) & 0xE00)) << shift; + pos++; + if (pos >= w) { + dst += stride; + pos = 0; + } + dst[pos] = (((a1 >> 23) & 0x3F) | ((a2 & 0x3F) << 6)) << shift; + pos++; + if (pos >= w) { + dst += stride; + pos = 0; + } + dst[pos] = (((a2 >> 7) & 0xFF8) | ((a2 >> 6) & 7)) << shift; + pos++; + if (pos >= w) { + dst += stride; + pos = 0; + } + dst[pos] = (((a3 & 7) << 9) | ((a2 >> 20) & 0x1FF)) << shift; + pos++; + if (pos >= w) { + dst += stride; + pos = 0; + } + dst[pos] = (((a3 >> 4) & 0xFC0) | ((a3 >> 3) & 0x3F)) << shift; + pos++; + if (pos >= w) { + dst += stride; + pos = 0; + } + dst[pos] = (((a3 >> 16) & 7) | ((a3 >> 17) & 0xFF8)) << shift; + pos++; + if (pos >= w) { + dst += stride; + pos = 0; + } + + count -= 9; + } +} + +static int cri_decode_frame(AVCodecContext *avctx, void *data, + int *got_frame, AVPacket *avpkt) +{ + CRIContext *s = avctx->priv_data; + GetByteContext *gb = &s->gb; + ThreadFrame frame = { .f = data }; + int ret, bps, hflip = 0, vflip = 0; + AVFrameSideData *rotation; + int compressed = 0; + AVFrame *p = data; + + s->data = NULL; + s->data_size = 0; + + bytestream2_init(gb, avpkt->data, avpkt->size); + + while (bytestream2_get_bytes_left(gb) > 8) { + char codec_name[1024]; + uint32_t key, length; + float framerate; + + key = bytestream2_get_le32(gb); + length = bytestream2_get_le32(gb); + + switch (key) { + case 1: + if (length != 4) + return AVERROR_INVALIDDATA; + + if (bytestream2_get_le32(gb) != MKTAG('D', 'V', 'C', 'C')) + return AVERROR_INVALIDDATA; + break; + case 100: + if (length < 16) + return AVERROR_INVALIDDATA; + avctx->width = bytestream2_get_le32(gb); + avctx->height = bytestream2_get_le32(gb); + s->color_model = bytestream2_get_le32(gb); + if (bytestream2_get_le32(gb) != 1) + return AVERROR_INVALIDDATA; + length -= 16; + goto skip; + case 101: + if (length != 4) + return AVERROR_INVALIDDATA; + + if (bytestream2_get_le32(gb) != 0) + return AVERROR_INVALIDDATA; + break; + case 102: + bytestream2_get_buffer(gb, codec_name, FFMIN(length, sizeof(codec_name) - 1)); + length -= FFMIN(length, sizeof(codec_name) - 1); + if (strncmp(codec_name, "cintel_craw", FFMIN(length, sizeof(codec_name) - 1))) + return AVERROR_INVALIDDATA; + compressed = 1; + goto skip; + case 103: + if (bytestream2_get_bytes_left(gb) < length) + return AVERROR_INVALIDDATA; + s->data = gb->buffer; + s->data_size = length; + goto skip; + case 105: + hflip = bytestream2_get_byte(gb) != 0; + length--; + goto skip; + case 106: + vflip = bytestream2_get_byte(gb) != 0; + length--; + goto skip; + case 107: + if (length != 4) + return AVERROR_INVALIDDATA; + framerate = av_int2float(bytestream2_get_le32(gb)); + avctx->framerate.num = framerate * 1000; + avctx->framerate.den = 1000; + break; + case 119: + if (length != 32) + return AVERROR_INVALIDDATA; + + for (int i = 0; i < 4; i++) + s->tile_size[i] = bytestream2_get_le64(gb); + break; + default: + av_log(avctx, AV_LOG_DEBUG, "skipping unknown key %u of length %u\n", key, length); +skip: + bytestream2_skip(gb, length); + } + } + + switch (s->color_model) { + case 76: + case 88: + avctx->pix_fmt = AV_PIX_FMT_BAYER_BGGR16; + break; + case 77: + case 89: + avctx->pix_fmt = AV_PIX_FMT_BAYER_GBRG16; + break; + case 78: + case 90: + avctx->pix_fmt = AV_PIX_FMT_BAYER_RGGB16; + break; + case 45: + case 79: + case 91: + avctx->pix_fmt = AV_PIX_FMT_BAYER_GRBG16; + break; + } + + switch (s->color_model) { + case 45: + bps = 10; + break; + case 76: + case 77: + case 78: + case 79: + bps = 12; + break; + case 88: + case 89: + case 90: + case 91: + bps = 16; + break; + default: + return AVERROR_INVALIDDATA; + } + + if (compressed) { + for (int i = 0; i < 4; i++) { + if (s->tile_size[i] >= s->data_size) + return AVERROR_INVALIDDATA; + } + + if (s->tile_size[0] + s->tile_size[1] + s->tile_size[2] + s->tile_size[3] != + s->data_size) + return AVERROR_INVALIDDATA; + } + + if (!s->data || !s->data_size) + return AVERROR_INVALIDDATA; + + if ((ret = ff_thread_get_buffer(avctx, &frame, 0)) < 0) + return ret; + + avctx->bits_per_raw_sample = bps; + + if (!compressed && s->color_model == 45) { + uint16_t *dst = (uint16_t *)p->data[0]; + GetByteContext gb; + + bytestream2_init(&gb, s->data, s->data_size); + unpack_10bit(&gb, dst, 4, avctx->width, avctx->height, p->linesize[0] / 2); + } else if (!compressed) { + GetBitContext gbit; + const int shift = 16 - bps; + + ret = init_get_bits8(&gbit, s->data, s->data_size); + if (ret < 0) + return ret; + + for (int y = 0; y < avctx->height; y++) { + uint16_t *dst = (uint16_t *)(p->data[0] + y * p->linesize[0]); + + for (int x = 0; x < avctx->width; x++) + dst[x] = get_bits(&gbit, bps) << shift; + } + } else { + unsigned offset = 0; + + for (int tile = 0; tile < 4; tile++) { + AVPacket jpkt; + + av_init_packet(&jpkt); + jpkt.data = (uint8_t *)s->data + offset; + jpkt.size = s->tile_size[tile]; + + ret = avcodec_send_packet(s->jpeg_avctx, &jpkt); + if (ret < 0) { + av_log(avctx, AV_LOG_ERROR, "Error submitting a packet for decoding\n"); + return ret; + } + + ret = avcodec_receive_frame(s->jpeg_avctx, s->jpgframe); + if (ret < 0 || s->jpgframe->format != AV_PIX_FMT_GRAY16 || + s->jpeg_avctx->width * 2 != avctx->width || + s->jpeg_avctx->height * 2 != avctx->height) { + if (ret < 0) { + av_log(avctx, AV_LOG_ERROR, + "JPEG decoding error (%d).\n", ret); + } else { + av_log(avctx, AV_LOG_ERROR, + "JPEG invalid format.\n"); + ret = AVERROR_INVALIDDATA; + } + + /* Normally skip, if error explode */ + if (avctx->err_recognition & AV_EF_EXPLODE) + return ret; + else + return 0; + } + + for (int y = 0; y < s->jpeg_avctx->height; y++) { + const int hw = s->jpgframe->width / 2; + uint16_t *dst = (uint16_t *)(p->data[0] + (y * 2) * p->linesize[0] + tile * hw * 2); + const uint16_t *src = (const uint16_t *)(s->jpgframe->data[0] + y * s->jpgframe->linesize[0]); + + memcpy(dst, src, hw * 2); + src += hw; + dst += p->linesize[0] / 2; + memcpy(dst, src, hw * 2); + } + + av_frame_unref(s->jpgframe); + offset += s->tile_size[tile]; + } + } + + if (hflip || vflip) { + rotation = av_frame_new_side_data(p, AV_FRAME_DATA_DISPLAYMATRIX, + sizeof(int32_t) * 9); + if (rotation) { + av_display_rotation_set((int32_t *)rotation->data, 0.f); + av_display_matrix_flip((int32_t *)rotation->data, hflip, vflip); + } + } + + p->pict_type = AV_PICTURE_TYPE_I; + p->key_frame = 1; + + *got_frame = 1; + + return 0; +} + +static av_cold int cri_decode_close(AVCodecContext *avctx) +{ + CRIContext *s = avctx->priv_data; + + av_frame_free(&s->jpgframe); + avcodec_free_context(&s->jpeg_avctx); + + return 0; +} + +AVCodec ff_cri_decoder = { + .name = "cri", + .type = AVMEDIA_TYPE_VIDEO, + .id = AV_CODEC_ID_CRI, + .priv_data_size = sizeof(CRIContext), + .init = cri_decode_init, + .decode = cri_decode_frame, + .close = cri_decode_close, + .capabilities = AV_CODEC_CAP_DR1 | AV_CODEC_CAP_FRAME_THREADS, + .caps_internal = FF_CODEC_CAP_INIT_CLEANUP, + .long_name = NULL_IF_CONFIG_SMALL("Cintel RAW"), +}; diff --git a/libavcodec/version.h b/libavcodec/version.h index a6057e3fe5..935a46940d 100644 --- a/libavcodec/version.h +++ b/libavcodec/version.h @@ -28,7 +28,7 @@ #include "libavutil/version.h" #define LIBAVCODEC_VERSION_MAJOR 58 -#define LIBAVCODEC_VERSION_MINOR 109 +#define LIBAVCODEC_VERSION_MINOR 110 #define LIBAVCODEC_VERSION_MICRO 100 #define LIBAVCODEC_VERSION_INT AV_VERSION_INT(LIBAVCODEC_VERSION_MAJOR, \ -- cgit v1.2.1