diff options
Diffstat (limited to 'libavcodec/vp8.c')
-rw-r--r-- | libavcodec/vp8.c | 41 |
1 files changed, 22 insertions, 19 deletions
diff --git a/libavcodec/vp8.c b/libavcodec/vp8.c index 30e24cc893..cf38a323cf 100644 --- a/libavcodec/vp8.c +++ b/libavcodec/vp8.c @@ -6,20 +6,20 @@ * Copyright (C) 2010 Jason Garrett-Glaser * Copyright (C) 2012 Daniel Kang * - * 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 */ @@ -115,7 +115,7 @@ static int update_dimensions(VP8Context *s, int width, int height) AVCodecContext *avctx = s->avctx; int i, ret; - if (width != s->avctx->width || + if (width != s->avctx->width || ((width+15)/16 != s->mb_width || (height+15)/16 != s->mb_height) && s->macroblocks_base || height != s->avctx->height) { vp8_decode_flush_impl(s->avctx, 1); @@ -382,7 +382,7 @@ static int decode_frame_header(VP8Context *s, const uint8_t *buf, int buf_size) } if (!s->macroblocks_base || /* first frame */ - width != s->avctx->width || height != s->avctx->height) { + width != s->avctx->width || height != s->avctx->height || (width+15)/16 != s->mb_width || (height+15)/16 != s->mb_height) { if ((ret = update_dimensions(s, width, height)) < 0) return ret; } @@ -664,7 +664,7 @@ void decode_intra4x4_modes(VP8Context *s, VP56RangeCoder *c, VP8Macroblock *mb, { uint8_t *intra4x4 = mb->intra4x4_pred_mode_mb; - if (layout == 1) { + if (layout) { VP8Macroblock *mb_top = mb - s->mb_width - 1; memcpy(mb->intra4x4_pred_mode_top, mb_top->intra4x4_pred_mode_top, 4); } @@ -672,7 +672,7 @@ void decode_intra4x4_modes(VP8Context *s, VP56RangeCoder *c, VP8Macroblock *mb, int x, y; uint8_t* top; uint8_t* const left = s->intra4x4_pred_mode_left; - if (layout == 1) + if (layout) top = mb->intra4x4_pred_mode_top; else top = s->intra4x4_pred_mode_top + 4 * mb_x; @@ -698,9 +698,10 @@ void decode_mb_mode(VP8Context *s, VP8Macroblock *mb, int mb_x, int mb_y, { VP56RangeCoder *c = &s->c; - if (s->segmentation.update_map) - *segment = vp8_rac_get_tree(c, vp8_segmentid_tree, s->prob->segmentid); - else if (s->segmentation.enabled) + if (s->segmentation.update_map) { + int bit = vp56_rac_get_prob(c, s->prob->segmentid[0]); + *segment = vp56_rac_get_prob(c, s->prob->segmentid[1+bit]) + 2*bit; + } else if (s->segmentation.enabled) *segment = ref ? *ref : *segment; mb->segment = *segment; @@ -713,7 +714,7 @@ void decode_mb_mode(VP8Context *s, VP8Macroblock *mb, int mb_x, int mb_y, decode_intra4x4_modes(s, c, mb, mb_x, 1, layout); } else { const uint32_t modes = vp8_pred4x4_mode[mb->mode] * 0x01010101u; - if (s->mb_layout == 1) + if (s->mb_layout) AV_WN32A(mb->intra4x4_pred_mode_top, modes); else AV_WN32A(s->intra4x4_pred_mode_top + 4 * mb_x, modes); @@ -1176,7 +1177,8 @@ void vp8_mc_luma(VP8Context *s, VP8ThreadData *td, uint8_t *dst, s->vdsp.emulated_edge_mc(td->edge_emu_buffer, src - my_idx * linesize - mx_idx, EDGE_EMU_LINESIZE, linesize, - block_w + subpel_idx[1][mx], block_h + subpel_idx[1][my], + block_w + subpel_idx[1][mx], + block_h + subpel_idx[1][my], x_off - mx_idx, y_off - my_idx, width, height); src = td->edge_emu_buffer + mx_idx + EDGE_EMU_LINESIZE * my_idx; src_linesize = EDGE_EMU_LINESIZE; @@ -1229,7 +1231,8 @@ void vp8_mc_chroma(VP8Context *s, VP8ThreadData *td, uint8_t *dst1, uint8_t *dst s->vdsp.emulated_edge_mc(td->edge_emu_buffer, src1 - my_idx * linesize - mx_idx, EDGE_EMU_LINESIZE, linesize, - block_w + subpel_idx[1][mx], block_h + subpel_idx[1][my], + block_w + subpel_idx[1][mx], + block_h + subpel_idx[1][my], x_off - mx_idx, y_off - my_idx, width, height); src1 = td->edge_emu_buffer + mx_idx + EDGE_EMU_LINESIZE * my_idx; mc_func[my_idx][mx_idx](dst1, linesize, src1, EDGE_EMU_LINESIZE, block_h, mx, my); @@ -1237,9 +1240,10 @@ void vp8_mc_chroma(VP8Context *s, VP8ThreadData *td, uint8_t *dst1, uint8_t *dst s->vdsp.emulated_edge_mc(td->edge_emu_buffer, src2 - my_idx * linesize - mx_idx, EDGE_EMU_LINESIZE, linesize, - block_w + subpel_idx[1][mx], block_h + subpel_idx[1][my], + block_w + subpel_idx[1][mx], + block_h + subpel_idx[1][my], x_off - mx_idx, y_off - my_idx, width, height); - src2 = td->edge_emu_buffer + mx_idx + EDGE_EMU_LINESIZE* my_idx; + src2 = td->edge_emu_buffer + mx_idx + EDGE_EMU_LINESIZE * my_idx; mc_func[my_idx][mx_idx](dst2, linesize, src2, EDGE_EMU_LINESIZE, block_h, mx, my); } else { mc_func[my_idx][mx_idx](dst1, linesize, src1, linesize, block_h, mx, my); @@ -1891,10 +1895,8 @@ int ff_vp8_decode_frame(AVCodecContext *avctx, void *data, int *got_frame, curframe->tf.f->key_frame = s->keyframe; curframe->tf.f->pict_type = s->keyframe ? AV_PICTURE_TYPE_I : AV_PICTURE_TYPE_P; - if ((ret = vp8_alloc_frame(s, curframe, referenced))) { - av_log(avctx, AV_LOG_ERROR, "get_buffer() failed!\n"); + if ((ret = vp8_alloc_frame(s, curframe, referenced)) < 0) goto err; - } // check if golden and altref are swapped if (s->update_altref != VP56_FRAME_NONE) { @@ -2083,3 +2085,4 @@ AVCodec ff_vp8_decoder = { .init_thread_copy = ONLY_IF_THREADS_ENABLED(vp8_decode_init_thread_copy), .update_thread_context = ONLY_IF_THREADS_ENABLED(vp8_decode_update_thread_context), }; + |