| /* |
| * Ut Video decoder |
| * Copyright (c) 2011 Konstantin Shishkov |
| * |
| * 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 |
| * Ut Video decoder |
| */ |
| |
| #include <inttypes.h> |
| #include <stdlib.h> |
| |
| #define UNCHECKED_BITSTREAM_READER 1 |
| |
| #include "libavutil/intreadwrite.h" |
| #include "avcodec.h" |
| #include "bswapdsp.h" |
| #include "bytestream.h" |
| #include "get_bits.h" |
| #include "internal.h" |
| #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); |
| } |
| #define VLC_BITS 11 |
| return ff_init_vlc_sparse(vlc, VLC_BITS, 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; |
| HuffEntry he[256]; |
| int last; |
| uint32_t codes[256]; |
| uint8_t bits[256]; |
| uint8_t syms[256]; |
| uint32_t code; |
| |
| *fsym = -1; |
| for (i = 0; i < 256; i++) { |
| he[i].sym = i; |
| he[i].len = *src++; |
| } |
| qsort(he, 256, sizeof(*he), ff_ut_huff_cmp_len); |
| |
| if (!he[0].len) { |
| *fsym = he[0].sym; |
| return 0; |
| } |
| |
| 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); |
| bits[i] = he[i].len; |
| syms[i] = he[i].sym; |
| code += 0x80000000u >> (he[i].len - 1); |
| } |
| |
| return ff_init_vlc_sparse(vlc, VLC_BITS, 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, ptrdiff_t 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; |
| } |
| |
| memset(c->slice_bits + slice_size, 0, AV_INPUT_BUFFER_PADDING_SIZE); |
| c->bdsp.bswap_buf((uint32_t *) c->slice_bits, |
| (uint32_t *)(src + slice_data_start + c->slices * 4), |
| (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++) { |
| int ws = width * step; |
| for (i = 0; i < ws; i += step) { |
| 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) < 0) { |
| av_log(c->avctx, AV_LOG_ERROR, |
| "Slice decoding ran out of bits\n"); |
| goto fail; |
| } |
| } |
| 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, ptrdiff_t stride, |
| int width, int height, |
| const uint8_t *src, int use_pred) |
| { |
| int i, j, slice, pix; |
| int sstart, send; |
| VLC vlc; |
| GetBitContext gb; |
| int prev, fsym; |
| const int cmask = c->interlaced ? ~(1 + 2 * (!plane_no && c->avctx->pix_fmt == AV_PIX_FMT_YUV420P)) : ~(!plane_no && c->avctx->pix_fmt == AV_PIX_FMT_YUV420P); |
| |
| if (build_huff(src, &vlc, &fsym)) { |
| av_log(c->avctx, AV_LOG_ERROR, "Cannot build Huffman codes\n"); |
| return AVERROR_INVALIDDATA; |
| } |
| if (fsym >= 0) { // build_huff reported a symbol to fill slices with |
| send = 0; |
| for (slice = 0; slice < c->slices; slice++) { |
| uint8_t *dest; |
| |
| sstart = send; |
| send = (height * (slice + 1) / c->slices) & cmask; |
| dest = dst + sstart * stride; |
| |
| prev = 0x80; |
| for (j = sstart; j < send; j++) { |
| for (i = 0; i < width * step; i += step) { |
| pix = fsym; |
| if (use_pred) { |
| prev += pix; |
| pix = prev; |
| } |
| dest[i] = pix; |
| } |
| dest += stride; |
| } |
| } |
| return 0; |
| } |
| |
| src += 256; |
| |
| send = 0; |
| for (slice = 0; slice < c->slices; slice++) { |
| uint8_t *dest; |
| int slice_data_start, slice_data_end, slice_size; |
| |
| sstart = send; |
| send = (height * (slice + 1) / c->slices) & cmask; |
| 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; |
| } |
| |
| memset(c->slice_bits + slice_size, 0, AV_INPUT_BUFFER_PADDING_SIZE); |
| c->bdsp.bswap_buf((uint32_t *) c->slice_bits, |
| (uint32_t *)(src + slice_data_start + c->slices * 4), |
| (slice_data_end - slice_data_start + 3) >> 2); |
| init_get_bits(&gb, c->slice_bits, slice_size * 8); |
| |
| prev = 0x80; |
| for (j = sstart; j < send; j++) { |
| int ws = width * step; |
| for (i = 0; i < ws; i += step) { |
| 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; |
| pix = prev; |
| } |
| dest[i] = pix; |
| } |
| if (get_bits_left(&gb) < 0) { |
| av_log(c->avctx, AV_LOG_ERROR, |
| "Slice decoding ran out of bits\n"); |
| goto fail; |
| } |
| 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; |
| } |
| |
| #undef A |
| #undef B |
| #undef C |
| |
| static void restore_median_planar(UtvideoContext *c, uint8_t *src, ptrdiff_t stride, |
| int width, int height, int slices, int rmode) |
| { |
| int i, j, slice; |
| int A, B, C; |
| uint8_t *bsrc; |
| int slice_start, slice_height; |
| const int cmask = ~rmode; |
| |
| for (slice = 0; slice < slices; slice++) { |
| 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 |
| bsrc[0] += 0x80; |
| c->llviddsp.add_left_pred(bsrc, bsrc, width, 0); |
| bsrc += stride; |
| if (slice_height <= 1) |
| continue; |
| // second line - first element has top prediction, the rest uses median |
| C = bsrc[-stride]; |
| bsrc[0] += C; |
| A = bsrc[0]; |
| for (i = 1; i < width; i++) { |
| B = bsrc[i - stride]; |
| bsrc[i] += mid_pred(A, B, (uint8_t)(A + B - C)); |
| C = B; |
| A = bsrc[i]; |
| } |
| bsrc += stride; |
| // the rest of lines use continuous median prediction |
| for (j = 2; j < slice_height; j++) { |
| c->llviddsp.add_median_pred(bsrc, bsrc - stride, |
| bsrc, width, &A, &B); |
| bsrc += stride; |
| } |
| } |
| } |
| |
| /* UtVideo interlaced mode treats every two lines as a single one, |
| * so restoring function should take care of possible padding between |
| * two parts of the same "line". |
| */ |
| static void restore_median_planar_il(UtvideoContext *c, uint8_t *src, ptrdiff_t stride, |
| int width, int height, int slices, int rmode) |
| { |
| int i, j, slice; |
| int A, B, C; |
| uint8_t *bsrc; |
| int slice_start, slice_height; |
| const int cmask = ~(rmode ? 3 : 1); |
| const ptrdiff_t stride2 = stride << 1; |
| |
| for (slice = 0; slice < slices; slice++) { |
| slice_start = ((slice * height) / slices) & cmask; |
| slice_height = ((((slice + 1) * height) / slices) & cmask) - |
| slice_start; |
| slice_height >>= 1; |
| if (!slice_height) |
| continue; |
| |
| bsrc = src + slice_start * stride; |
| |
| // first line - left neighbour prediction |
| bsrc[0] += 0x80; |
| A = c->llviddsp.add_left_pred(bsrc, bsrc, width, 0); |
| c->llviddsp.add_left_pred(bsrc + stride, bsrc + stride, width, A); |
| bsrc += stride2; |
| if (slice_height <= 1) |
| continue; |
| // second line - first element has top prediction, the rest uses median |
| C = bsrc[-stride2]; |
| bsrc[0] += C; |
| A = bsrc[0]; |
| for (i = 1; i < width; i++) { |
| B = bsrc[i - stride2]; |
| bsrc[i] += mid_pred(A, B, (uint8_t)(A + B - C)); |
| C = B; |
| A = bsrc[i]; |
| } |
| c->llviddsp.add_median_pred(bsrc + stride, bsrc - stride, |
| bsrc + stride, width, &A, &B); |
| bsrc += stride2; |
| // the rest of lines use continuous median prediction |
| for (j = 2; j < slice_height; j++) { |
| c->llviddsp.add_median_pred(bsrc, bsrc - stride2, |
| bsrc, width, &A, &B); |
| c->llviddsp.add_median_pred(bsrc + stride, bsrc - stride, |
| bsrc + stride, width, &A, &B); |
| bsrc += stride2; |
| } |
| } |
| } |
| |
| static void restore_gradient_planar(UtvideoContext *c, uint8_t *src, ptrdiff_t stride, |
| int width, int height, int slices, int rmode) |
| { |
| int i, j, slice; |
| int A, B, C; |
| uint8_t *bsrc; |
| int slice_start, slice_height; |
| const int cmask = ~rmode; |
| |
| for (slice = 0; slice < slices; slice++) { |
| 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 |
| bsrc[0] += 0x80; |
| c->llviddsp.add_left_pred(bsrc, bsrc, width, 0); |
| bsrc += stride; |
| if (slice_height <= 1) |
| continue; |
| for (j = 1; j < slice_height; j++) { |
| // second line - first element has top prediction, the rest uses gradient |
| bsrc[0] = (bsrc[0] + bsrc[-stride]) & 0xFF; |
| for (i = 1; i < width; i++) { |
| A = bsrc[i - stride]; |
| B = bsrc[i - (stride + 1)]; |
| C = bsrc[i - 1]; |
| bsrc[i] = (A - B + C + bsrc[i]) & 0xFF; |
| } |
| bsrc += stride; |
| } |
| } |
| } |
| |
| static void restore_gradient_planar_il(UtvideoContext *c, uint8_t *src, ptrdiff_t stride, |
| int width, int height, int slices, int rmode) |
| { |
| int i, j, slice; |
| int A, B, C; |
| uint8_t *bsrc; |
| int slice_start, slice_height; |
| const int cmask = ~(rmode ? 3 : 1); |
| const ptrdiff_t stride2 = stride << 1; |
| |
| for (slice = 0; slice < slices; slice++) { |
| slice_start = ((slice * height) / slices) & cmask; |
| slice_height = ((((slice + 1) * height) / slices) & cmask) - |
| slice_start; |
| slice_height >>= 1; |
| if (!slice_height) |
| continue; |
| |
| bsrc = src + slice_start * stride; |
| |
| // first line - left neighbour prediction |
| bsrc[0] += 0x80; |
| A = c->llviddsp.add_left_pred(bsrc, bsrc, width, 0); |
| c->llviddsp.add_left_pred(bsrc + stride, bsrc + stride, width, A); |
| bsrc += stride2; |
| if (slice_height <= 1) |
| continue; |
| for (j = 1; j < slice_height; j++) { |
| // second line - first element has top prediction, the rest uses gradient |
| bsrc[0] = (bsrc[0] + bsrc[-stride2]) & 0xFF; |
| for (i = 1; i < width; i++) { |
| A = bsrc[i - stride2]; |
| B = bsrc[i - (stride2 + 1)]; |
| C = bsrc[i - 1]; |
| bsrc[i] = (A - B + C + bsrc[i]) & 0xFF; |
| } |
| A = bsrc[-stride]; |
| B = bsrc[-(1 + stride + stride - width)]; |
| C = bsrc[width - 1]; |
| bsrc[stride] = (A - B + C + bsrc[stride]) & 0xFF; |
| for (i = 1; i < width; i++) { |
| A = bsrc[i - stride]; |
| B = bsrc[i - (1 + stride)]; |
| C = bsrc[i - 1 + stride]; |
| bsrc[i + stride] = (A - B + C + bsrc[i + stride]) & 0xFF; |
| } |
| bsrc += stride2; |
| } |
| } |
| } |
| |
| static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame, |
| AVPacket *avpkt) |
| { |
| const uint8_t *buf = avpkt->data; |
| int buf_size = avpkt->size; |
| UtvideoContext *c = avctx->priv_data; |
| int i, j; |
| const uint8_t *plane_start[5]; |
| int plane_size, max_slice_size = 0, slice_start, slice_end, slice_size; |
| int ret; |
| GetByteContext gb; |
| ThreadFrame frame = { .f = data }; |
| |
| if ((ret = ff_thread_get_buffer(avctx, &frame, 0)) < 0) |
| return ret; |
| |
| /* parse plane structure to get frame flags and validate slice offsets */ |
| bytestream2_init(&gb, buf, buf_size); |
| 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; |
| } |
| 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 = 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 + 1024LL) { |
| 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_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); |
| } |
| av_log(avctx, AV_LOG_DEBUG, "frame information flags %"PRIX32"\n", |
| c->frame_info); |
| |
| c->frame_pred = (c->frame_info >> 8) & 3; |
| |
| max_slice_size += 4*avctx->width; |
| |
| av_fast_malloc(&c->slice_bits, &c->slice_bits_size, |
| max_slice_size + AV_INPUT_BUFFER_PADDING_SIZE); |
| |
| if (!c->slice_bits) { |
| av_log(avctx, AV_LOG_ERROR, "Cannot allocate temporary buffer\n"); |
| return AVERROR(ENOMEM); |
| } |
| |
| switch (c->avctx->pix_fmt) { |
| case AV_PIX_FMT_GBRP: |
| case AV_PIX_FMT_GBRAP: |
| for (i = 0; i < c->planes; i++) { |
| ret = decode_plane(c, i, frame.f->data[i], 1, |
| frame.f->linesize[i], avctx->width, |
| avctx->height, plane_start[i], |
| c->frame_pred == PRED_LEFT); |
| if (ret) |
| return ret; |
| if (c->frame_pred == PRED_MEDIAN) { |
| if (!c->interlaced) { |
| restore_median_planar(c, frame.f->data[i], |
| frame.f->linesize[i], avctx->width, |
| avctx->height, c->slices, 0); |
| } else { |
| restore_median_planar_il(c, frame.f->data[i], |
| frame.f->linesize[i], |
| avctx->width, avctx->height, c->slices, |
| 0); |
| } |
| } else if (c->frame_pred == PRED_GRADIENT) { |
| if (!c->interlaced) { |
| restore_gradient_planar(c, frame.f->data[i], |
| frame.f->linesize[i], avctx->width, |
| avctx->height, c->slices, 0); |
| } else { |
| restore_gradient_planar_il(c, frame.f->data[i], |
| frame.f->linesize[i], |
| avctx->width, avctx->height, c->slices, |
| 0); |
| } |
| } |
| } |
| c->utdsp.restore_rgb_planes(frame.f->data[2], frame.f->data[0], frame.f->data[1], |
| frame.f->linesize[2], frame.f->linesize[0], frame.f->linesize[1], |
| 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; |
| } |
| c->utdsp.restore_rgb_planes10((uint16_t *)frame.f->data[2], (uint16_t *)frame.f->data[0], (uint16_t *)frame.f->data[1], |
| frame.f->linesize[2] / 2, frame.f->linesize[0] / 2, frame.f->linesize[1] / 2, |
| 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], |
| avctx->width >> !!i, avctx->height >> !!i, |
| plane_start[i], c->frame_pred == PRED_LEFT); |
| if (ret) |
| return ret; |
| if (c->frame_pred == PRED_MEDIAN) { |
| if (!c->interlaced) { |
| restore_median_planar(c, frame.f->data[i], frame.f->linesize[i], |
| avctx->width >> !!i, avctx->height >> !!i, |
| c->slices, !i); |
| } else { |
| restore_median_planar_il(c, frame.f->data[i], frame.f->linesize[i], |
| avctx->width >> !!i, |
| avctx->height >> !!i, |
| c->slices, !i); |
| } |
| } else if (c->frame_pred == PRED_GRADIENT) { |
| if (!c->interlaced) { |
| restore_gradient_planar(c, frame.f->data[i], frame.f->linesize[i], |
| avctx->width >> !!i, avctx->height >> !!i, |
| c->slices, !i); |
| } else { |
| restore_gradient_planar_il(c, frame.f->data[i], frame.f->linesize[i], |
| avctx->width >> !!i, |
| avctx->height >> !!i, |
| c->slices, !i); |
| } |
| } |
| } |
| break; |
| case AV_PIX_FMT_YUV422P: |
| for (i = 0; i < 3; i++) { |
| ret = decode_plane(c, i, frame.f->data[i], 1, frame.f->linesize[i], |
| avctx->width >> !!i, avctx->height, |
| plane_start[i], c->frame_pred == PRED_LEFT); |
| if (ret) |
| return ret; |
| if (c->frame_pred == PRED_MEDIAN) { |
| if (!c->interlaced) { |
| restore_median_planar(c, frame.f->data[i], frame.f->linesize[i], |
| avctx->width >> !!i, avctx->height, |
| c->slices, 0); |
| } else { |
| restore_median_planar_il(c, frame.f->data[i], frame.f->linesize[i], |
| avctx->width >> !!i, avctx->height, |
| c->slices, 0); |
| } |
| } else if (c->frame_pred == PRED_GRADIENT) { |
| if (!c->interlaced) { |
| restore_gradient_planar(c, frame.f->data[i], frame.f->linesize[i], |
| avctx->width >> !!i, avctx->height, |
| c->slices, 0); |
| } else { |
| restore_gradient_planar_il(c, frame.f->data[i], frame.f->linesize[i], |
| avctx->width >> !!i, avctx->height, |
| c->slices, 0); |
| } |
| } |
| } |
| break; |
| case AV_PIX_FMT_YUV444P: |
| for (i = 0; i < 3; i++) { |
| ret = decode_plane(c, i, frame.f->data[i], 1, frame.f->linesize[i], |
| avctx->width, avctx->height, |
| plane_start[i], c->frame_pred == PRED_LEFT); |
| if (ret) |
| return ret; |
| if (c->frame_pred == PRED_MEDIAN) { |
| if (!c->interlaced) { |
| restore_median_planar(c, frame.f->data[i], frame.f->linesize[i], |
| avctx->width, avctx->height, |
| c->slices, 0); |
| } else { |
| restore_median_planar_il(c, frame.f->data[i], frame.f->linesize[i], |
| avctx->width, avctx->height, |
| c->slices, 0); |
| } |
| } else if (c->frame_pred == PRED_GRADIENT) { |
| if (!c->interlaced) { |
| restore_gradient_planar(c, frame.f->data[i], frame.f->linesize[i], |
| avctx->width, avctx->height, |
| c->slices, 0); |
| } else { |
| restore_gradient_planar_il(c, frame.f->data[i], frame.f->linesize[i], |
| avctx->width, avctx->height, |
| c->slices, 0); |
| } |
| } |
| } |
| 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; |
| frame.f->pict_type = AV_PICTURE_TYPE_I; |
| frame.f->interlaced_frame = !!c->interlaced; |
| |
| *got_frame = 1; |
| |
| /* always report that the buffer was completely consumed */ |
| return buf_size; |
| } |
| |
| static av_cold int decode_init(AVCodecContext *avctx) |
| { |
| UtvideoContext * const c = avctx->priv_data; |
| |
| c->avctx = avctx; |
| |
| ff_utvideodsp_init(&c->utdsp); |
| ff_bswapdsp_init(&c->bdsp); |
| ff_llviddsp_init(&c->llviddsp); |
| |
| 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; |
| } |
| |
| c->slice_bits_size = 0; |
| |
| switch (avctx->codec_tag) { |
| case MKTAG('U', 'L', 'R', 'G'): |
| c->planes = 3; |
| avctx->pix_fmt = AV_PIX_FMT_GBRP; |
| break; |
| case MKTAG('U', 'L', 'R', 'A'): |
| c->planes = 4; |
| avctx->pix_fmt = AV_PIX_FMT_GBRAP; |
| break; |
| case MKTAG('U', 'L', 'Y', '0'): |
| c->planes = 3; |
| avctx->pix_fmt = AV_PIX_FMT_YUV420P; |
| avctx->colorspace = AVCOL_SPC_BT470BG; |
| break; |
| case MKTAG('U', 'L', 'Y', '2'): |
| c->planes = 3; |
| avctx->pix_fmt = AV_PIX_FMT_YUV422P; |
| avctx->colorspace = AVCOL_SPC_BT470BG; |
| break; |
| case MKTAG('U', 'L', 'Y', '4'): |
| c->planes = 3; |
| avctx->pix_fmt = AV_PIX_FMT_YUV444P; |
| 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; |
| avctx->colorspace = AVCOL_SPC_BT709; |
| break; |
| case MKTAG('U', 'L', 'H', '2'): |
| c->planes = 3; |
| avctx->pix_fmt = AV_PIX_FMT_YUV422P; |
| avctx->colorspace = AVCOL_SPC_BT709; |
| break; |
| case MKTAG('U', 'L', 'H', '4'): |
| c->planes = 3; |
| avctx->pix_fmt = AV_PIX_FMT_YUV444P; |
| avctx->colorspace = AVCOL_SPC_BT709; |
| break; |
| default: |
| av_log(avctx, AV_LOG_ERROR, "Unknown Ut Video FOURCC provided (%08X)\n", |
| avctx->codec_tag); |
| return AVERROR_INVALIDDATA; |
| } |
| |
| return 0; |
| } |
| |
| static av_cold int decode_end(AVCodecContext *avctx) |
| { |
| UtvideoContext * const c = avctx->priv_data; |
| |
| av_freep(&c->slice_bits); |
| |
| return 0; |
| } |
| |
| AVCodec ff_utvideo_decoder = { |
| .name = "utvideo", |
| .long_name = NULL_IF_CONFIG_SMALL("Ut Video"), |
| .type = AVMEDIA_TYPE_VIDEO, |
| .id = AV_CODEC_ID_UTVIDEO, |
| .priv_data_size = sizeof(UtvideoContext), |
| .init = decode_init, |
| .close = decode_end, |
| .decode = decode_frame, |
| .capabilities = AV_CODEC_CAP_DR1 | AV_CODEC_CAP_FRAME_THREADS, |
| .caps_internal = FF_CODEC_CAP_INIT_THREADSAFE, |
| }; |
