diff options
Diffstat (limited to 'libavcodec/utvideodec.c')
| -rw-r--r-- | libavcodec/utvideodec.c | 354 |
1 files changed, 299 insertions, 55 deletions
diff --git a/libavcodec/utvideodec.c b/libavcodec/utvideodec.c index 30ca4d2164..8798714f86 100644 --- a/libavcodec/utvideodec.c +++ b/libavcodec/utvideodec.c @@ -2,20 +2,20 @@ * Ut Video decoder * Copyright (c) 2011 Konstantin Shishkov * - * This file is part of Libav. + * This file is part of FFmpeg. * - * Libav is free software; you can redistribute it and/or + * 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. * - * Libav is distributed in the hope that it will be useful, + * 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 Libav; if not, write to the Free Software + * License along with FFmpeg; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ @@ -35,6 +35,50 @@ #include "thread.h" #include "utvideo.h" +static int build_huff10(const uint8_t *src, VLC *vlc, int *fsym) +{ + int i; + HuffEntry he[1024]; + int last; + uint32_t codes[1024]; + uint8_t bits[1024]; + uint16_t syms[1024]; + uint32_t code; + + *fsym = -1; + for (i = 0; i < 1024; i++) { + he[i].sym = i; + he[i].len = *src++; + } + qsort(he, 1024, sizeof(*he), ff_ut10_huff_cmp_len); + + if (!he[0].len) { + *fsym = he[0].sym; + return 0; + } + + last = 1023; + while (he[last].len == 255 && last) + last--; + + if (he[last].len > 32) { + return -1; + } + + code = 1; + for (i = last; i >= 0; i--) { + codes[i] = code >> (32 - he[i].len); + bits[i] = he[i].len; + syms[i] = he[i].sym; + code += 0x80000000u >> (he[i].len - 1); + } + + return ff_init_vlc_sparse(vlc, FFMIN(he[last].len, 11), last + 1, + bits, sizeof(*bits), sizeof(*bits), + codes, sizeof(*codes), sizeof(*codes), + syms, sizeof(*syms), sizeof(*syms), 0); +} + static int build_huff(const uint8_t *src, VLC *vlc, int *fsym) { int i; @@ -56,13 +100,14 @@ static int build_huff(const uint8_t *src, VLC *vlc, int *fsym) *fsym = he[0].sym; return 0; } - if (he[0].len > 32) - return -1; last = 255; while (he[last].len == 255 && last) last--; + if (he[last].len > 32) + return -1; + code = 1; for (i = last; i >= 0; i--) { codes[i] = code >> (32 - he[i].len); @@ -71,12 +116,117 @@ static int build_huff(const uint8_t *src, VLC *vlc, int *fsym) code += 0x80000000u >> (he[i].len - 1); } - return ff_init_vlc_sparse(vlc, FFMIN(he[last].len, 9), last + 1, + return ff_init_vlc_sparse(vlc, FFMIN(he[last].len, 11), last + 1, bits, sizeof(*bits), sizeof(*bits), codes, sizeof(*codes), sizeof(*codes), syms, sizeof(*syms), sizeof(*syms), 0); } +static int decode_plane10(UtvideoContext *c, int plane_no, + uint16_t *dst, int step, int stride, + int width, int height, + const uint8_t *src, const uint8_t *huff, + int use_pred) +{ + int i, j, slice, pix, ret; + int sstart, send; + VLC vlc; + GetBitContext gb; + int prev, fsym; + + if ((ret = build_huff10(huff, &vlc, &fsym)) < 0) { + av_log(c->avctx, AV_LOG_ERROR, "Cannot build Huffman codes\n"); + return ret; + } + if (fsym >= 0) { // build_huff reported a symbol to fill slices with + send = 0; + for (slice = 0; slice < c->slices; slice++) { + uint16_t *dest; + + sstart = send; + send = (height * (slice + 1) / c->slices); + dest = dst + sstart * stride; + + prev = 0x200; + for (j = sstart; j < send; j++) { + for (i = 0; i < width * step; i += step) { + pix = fsym; + if (use_pred) { + prev += pix; + prev &= 0x3FF; + pix = prev; + } + dest[i] = pix; + } + dest += stride; + } + } + return 0; + } + + send = 0; + for (slice = 0; slice < c->slices; slice++) { + uint16_t *dest; + int slice_data_start, slice_data_end, slice_size; + + sstart = send; + send = (height * (slice + 1) / c->slices); + dest = dst + sstart * stride; + + // slice offset and size validation was done earlier + slice_data_start = slice ? AV_RL32(src + slice * 4 - 4) : 0; + slice_data_end = AV_RL32(src + slice * 4); + slice_size = slice_data_end - slice_data_start; + + if (!slice_size) { + av_log(c->avctx, AV_LOG_ERROR, "Plane has more than one symbol " + "yet a slice has a length of zero.\n"); + goto fail; + } + + memcpy(c->slice_bits, src + slice_data_start + c->slices * 4, + slice_size); + memset(c->slice_bits + slice_size, 0, AV_INPUT_BUFFER_PADDING_SIZE); + c->bdsp.bswap_buf((uint32_t *) c->slice_bits, + (uint32_t *) c->slice_bits, + (slice_data_end - slice_data_start + 3) >> 2); + init_get_bits(&gb, c->slice_bits, slice_size * 8); + + prev = 0x200; + for (j = sstart; j < send; j++) { + for (i = 0; i < width * step; i += step) { + if (get_bits_left(&gb) <= 0) { + av_log(c->avctx, AV_LOG_ERROR, + "Slice decoding ran out of bits\n"); + goto fail; + } + pix = get_vlc2(&gb, vlc.table, vlc.bits, 3); + if (pix < 0) { + av_log(c->avctx, AV_LOG_ERROR, "Decoding error\n"); + goto fail; + } + if (use_pred) { + prev += pix; + prev &= 0x3FF; + pix = prev; + } + dest[i] = pix; + } + dest += stride; + } + if (get_bits_left(&gb) > 32) + av_log(c->avctx, AV_LOG_WARNING, + "%d bits left after decoding slice\n", get_bits_left(&gb)); + } + + ff_free_vlc(&vlc); + + return 0; +fail: + ff_free_vlc(&vlc); + return AVERROR_INVALIDDATA; +} + static int decode_plane(UtvideoContext *c, int plane_no, uint8_t *dst, int step, int stride, int width, int height, @@ -156,7 +306,7 @@ static int decode_plane(UtvideoContext *c, int plane_no, "Slice decoding ran out of bits\n"); goto fail; } - pix = get_vlc2(&gb, vlc.table, vlc.bits, 4); + pix = get_vlc2(&gb, vlc.table, vlc.bits, 3); if (pix < 0) { av_log(c->avctx, AV_LOG_ERROR, "Decoding error\n"); goto fail; @@ -200,6 +350,28 @@ static void restore_rgb_planes(uint8_t *src, int step, int stride, int width, } } +static void restore_rgb_planes10(AVFrame *frame, int width, int height) +{ + uint16_t *src_r = (uint16_t *)frame->data[2]; + uint16_t *src_g = (uint16_t *)frame->data[0]; + uint16_t *src_b = (uint16_t *)frame->data[1]; + int r, g, b; + int i, j; + + for (j = 0; j < height; j++) { + for (i = 0; i < width; i++) { + r = src_r[i]; + g = src_g[i]; + b = src_b[i]; + src_r[i] = (r + g - 0x200) & 0x3FF; + src_b[i] = (b + g - 0x200) & 0x3FF; + } + src_r += frame->linesize[2] / 2; + src_g += frame->linesize[0] / 2; + src_b += frame->linesize[1] / 2; + } +} + static void restore_median(uint8_t *src, int step, int stride, int width, int height, int slices, int rmode) { @@ -213,9 +385,9 @@ static void restore_median(uint8_t *src, int step, int stride, slice_start = ((slice * height) / slices) & cmask; slice_height = ((((slice + 1) * height) / slices) & cmask) - slice_start; + if (!slice_height) continue; - bsrc = src + slice_start * stride; // first line - left neighbour prediction @@ -226,7 +398,7 @@ static void restore_median(uint8_t *src, int step, int stride, A = bsrc[i]; } bsrc += stride; - if (slice_height == 1) + if (slice_height <= 1) continue; // second line - first element has top prediction, the rest uses median C = bsrc[-stride]; @@ -288,7 +460,7 @@ static void restore_median_il(uint8_t *src, int step, int stride, A = bsrc[stride + i]; } bsrc += stride2; - if (slice_height == 1) + if (slice_height <= 1) continue; // second line - first element has top prediction, the rest uses median C = bsrc[-stride2]; @@ -339,44 +511,73 @@ static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame, GetByteContext gb; ThreadFrame frame = { .f = data }; - if ((ret = ff_thread_get_buffer(avctx, &frame, 0)) < 0) { - av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n"); + if ((ret = ff_thread_get_buffer(avctx, &frame, 0)) < 0) return ret; - } - - ff_thread_finish_setup(avctx); /* parse plane structure to get frame flags and validate slice offsets */ bytestream2_init(&gb, buf, buf_size); - for (i = 0; i < c->planes; i++) { - plane_start[i] = gb.buffer; - if (bytestream2_get_bytes_left(&gb) < 256 + 4 * c->slices) { - av_log(avctx, AV_LOG_ERROR, "Insufficient data for a plane\n"); + if (c->pro) { + if (bytestream2_get_bytes_left(&gb) < c->frame_info_size) { + av_log(avctx, AV_LOG_ERROR, "Not enough data for frame information\n"); return AVERROR_INVALIDDATA; } - bytestream2_skipu(&gb, 256); - slice_start = 0; - slice_end = 0; - for (j = 0; j < c->slices; j++) { - slice_end = bytestream2_get_le32u(&gb); - slice_size = slice_end - slice_start; - if (slice_end < 0 || slice_size < 0 || - bytestream2_get_bytes_left(&gb) < slice_end) { - av_log(avctx, AV_LOG_ERROR, "Incorrect slice size\n"); + c->frame_info = bytestream2_get_le32u(&gb); + c->slices = ((c->frame_info >> 16) & 0xff) + 1; + for (i = 0; i < c->planes; i++) { + plane_start[i] = gb.buffer; + if (bytestream2_get_bytes_left(&gb) < 1024 + 4 * c->slices) { + av_log(avctx, AV_LOG_ERROR, "Insufficient data for a plane\n"); return AVERROR_INVALIDDATA; } - slice_start = slice_end; - max_slice_size = FFMAX(max_slice_size, slice_size); + slice_start = 0; + slice_end = 0; + for (j = 0; j < c->slices; j++) { + slice_end = bytestream2_get_le32u(&gb); + if (slice_end < 0 || slice_end < slice_start || + bytestream2_get_bytes_left(&gb) < slice_end) { + av_log(avctx, AV_LOG_ERROR, "Incorrect slice size\n"); + return AVERROR_INVALIDDATA; + } + slice_size = slice_end - slice_start; + slice_start = slice_end; + max_slice_size = FFMAX(max_slice_size, slice_size); + } + plane_size = slice_end; + bytestream2_skipu(&gb, plane_size); + bytestream2_skipu(&gb, 1024); } - plane_size = slice_end; - bytestream2_skipu(&gb, plane_size); - } - plane_start[c->planes] = gb.buffer; - if (bytestream2_get_bytes_left(&gb) < c->frame_info_size) { - av_log(avctx, AV_LOG_ERROR, "Not enough data for frame information\n"); - return AVERROR_INVALIDDATA; + plane_start[c->planes] = gb.buffer; + } else { + for (i = 0; i < c->planes; i++) { + plane_start[i] = gb.buffer; + if (bytestream2_get_bytes_left(&gb) < 256 + 4 * c->slices) { + av_log(avctx, AV_LOG_ERROR, "Insufficient data for a plane\n"); + return AVERROR_INVALIDDATA; + } + bytestream2_skipu(&gb, 256); + slice_start = 0; + slice_end = 0; + for (j = 0; j < c->slices; j++) { + slice_end = bytestream2_get_le32u(&gb); + if (slice_end < 0 || slice_end < slice_start || + bytestream2_get_bytes_left(&gb) < slice_end) { + av_log(avctx, AV_LOG_ERROR, "Incorrect slice size\n"); + return AVERROR_INVALIDDATA; + } + slice_size = slice_end - slice_start; + slice_start = slice_end; + max_slice_size = FFMAX(max_slice_size, slice_size); + } + plane_size = slice_end; + bytestream2_skipu(&gb, plane_size); + } + plane_start[c->planes] = gb.buffer; + if (bytestream2_get_bytes_left(&gb) < c->frame_info_size) { + av_log(avctx, AV_LOG_ERROR, "Not enough data for frame information\n"); + return AVERROR_INVALIDDATA; + } + c->frame_info = bytestream2_get_le32u(&gb); } - c->frame_info = bytestream2_get_le32u(&gb); av_log(avctx, AV_LOG_DEBUG, "frame information flags %"PRIX32"\n", c->frame_info); @@ -421,6 +622,19 @@ static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame, restore_rgb_planes(frame.f->data[0], c->planes, frame.f->linesize[0], avctx->width, avctx->height); break; + case AV_PIX_FMT_GBRAP10: + case AV_PIX_FMT_GBRP10: + for (i = 0; i < c->planes; i++) { + ret = decode_plane10(c, i, (uint16_t *)frame.f->data[i], 1, + frame.f->linesize[i] / 2, avctx->width, + avctx->height, plane_start[i], + plane_start[i + 1] - 1024, + c->frame_pred == PRED_LEFT); + if (ret) + return ret; + } + restore_rgb_planes10(frame.f, avctx->width, avctx->height); + break; case AV_PIX_FMT_YUV420P: for (i = 0; i < 3; i++) { ret = decode_plane(c, i, frame.f->data[i], 1, frame.f->linesize[i], @@ -462,6 +676,15 @@ static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame, } } break; + case AV_PIX_FMT_YUV422P10: + for (i = 0; i < 3; i++) { + ret = decode_plane10(c, i, (uint16_t *)frame.f->data[i], 1, frame.f->linesize[i] / 2, + avctx->width >> !!i, avctx->height, + plane_start[i], plane_start[i + 1] - 1024, c->frame_pred == PRED_LEFT); + if (ret) + return ret; + } + break; } frame.f->key_frame = 1; @@ -482,28 +705,37 @@ static av_cold int decode_init(AVCodecContext *avctx) ff_bswapdsp_init(&c->bdsp); - if (avctx->extradata_size < 16) { + if (avctx->extradata_size >= 16) { + av_log(avctx, AV_LOG_DEBUG, "Encoder version %d.%d.%d.%d\n", + avctx->extradata[3], avctx->extradata[2], + avctx->extradata[1], avctx->extradata[0]); + av_log(avctx, AV_LOG_DEBUG, "Original format %"PRIX32"\n", + AV_RB32(avctx->extradata + 4)); + c->frame_info_size = AV_RL32(avctx->extradata + 8); + c->flags = AV_RL32(avctx->extradata + 12); + + if (c->frame_info_size != 4) + avpriv_request_sample(avctx, "Frame info not 4 bytes"); + av_log(avctx, AV_LOG_DEBUG, "Encoding parameters %08"PRIX32"\n", c->flags); + c->slices = (c->flags >> 24) + 1; + c->compression = c->flags & 1; + c->interlaced = c->flags & 0x800; + } else if (avctx->extradata_size == 8) { + av_log(avctx, AV_LOG_DEBUG, "Encoder version %d.%d.%d.%d\n", + avctx->extradata[3], avctx->extradata[2], + avctx->extradata[1], avctx->extradata[0]); + av_log(avctx, AV_LOG_DEBUG, "Original format %"PRIX32"\n", + AV_RB32(avctx->extradata + 4)); + c->interlaced = 0; + c->pro = 1; + c->frame_info_size = 4; + } else { av_log(avctx, AV_LOG_ERROR, "Insufficient extradata size %d, should be at least 16\n", avctx->extradata_size); return AVERROR_INVALIDDATA; } - av_log(avctx, AV_LOG_DEBUG, "Encoder version %d.%d.%d.%d\n", - avctx->extradata[3], avctx->extradata[2], - avctx->extradata[1], avctx->extradata[0]); - av_log(avctx, AV_LOG_DEBUG, "Original format %"PRIX32"\n", - AV_RB32(avctx->extradata + 4)); - c->frame_info_size = AV_RL32(avctx->extradata + 8); - c->flags = AV_RL32(avctx->extradata + 12); - - if (c->frame_info_size != 4) - avpriv_request_sample(avctx, "Frame info not 4 bytes"); - av_log(avctx, AV_LOG_DEBUG, "Encoding parameters %08"PRIX32"\n", c->flags); - c->slices = (c->flags >> 24) + 1; - c->compression = c->flags & 1; - c->interlaced = c->flags & 0x800; - c->slice_bits_size = 0; switch (avctx->codec_tag) { @@ -525,6 +757,18 @@ static av_cold int decode_init(AVCodecContext *avctx) avctx->pix_fmt = AV_PIX_FMT_YUV422P; avctx->colorspace = AVCOL_SPC_BT470BG; break; + case MKTAG('U', 'Q', 'Y', '2'): + c->planes = 3; + avctx->pix_fmt = AV_PIX_FMT_YUV422P10; + break; + case MKTAG('U', 'Q', 'R', 'G'): + c->planes = 3; + avctx->pix_fmt = AV_PIX_FMT_GBRP10; + break; + case MKTAG('U', 'Q', 'R', 'A'): + c->planes = 4; + avctx->pix_fmt = AV_PIX_FMT_GBRAP10; + break; case MKTAG('U', 'L', 'H', '0'): c->planes = 3; avctx->pix_fmt = AV_PIX_FMT_YUV420P; |