mirror of
https://github.com/FFmpeg/FFmpeg.git
synced 2024-12-23 12:43:46 +02:00
avcodec: split avpicture from imgconvert
All the non deprecated functions are in avpicture.c now.
This commit is contained in:
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@ -14,6 +14,7 @@ HEADERS = avcodec.h \
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OBJS = allcodecs.o \
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OBJS = allcodecs.o \
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audioconvert.o \
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audioconvert.o \
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avpacket.o \
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avpacket.o \
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avpicture.o \
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bitstream.o \
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bitstream.o \
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bitstream_filter.o \
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bitstream_filter.o \
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codec_desc.o \
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codec_desc.o \
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123
libavcodec/avpicture.c
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123
libavcodec/avpicture.c
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@ -0,0 +1,123 @@
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/*
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* AVPicture management routines
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* Copyright (c) 2001, 2002, 2003 Fabrice Bellard
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*
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* This file is part of Libav.
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*
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* Libav is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* Libav is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with Libav; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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/**
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* @file
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* AVPicture management routines
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*/
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#include "avcodec.h"
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#include "internal.h"
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#include "libavutil/common.h"
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#include "libavutil/pixdesc.h"
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#include "libavutil/imgutils.h"
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#include "libavutil/colorspace.h"
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int avpicture_fill(AVPicture *picture, uint8_t *ptr,
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enum AVPixelFormat pix_fmt, int width, int height)
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{
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int ret;
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if ((ret = av_image_check_size(width, height, 0, NULL)) < 0)
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return ret;
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if ((ret = av_image_fill_linesizes(picture->linesize, pix_fmt, width)) < 0)
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return ret;
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return av_image_fill_pointers(picture->data, pix_fmt,
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height, ptr, picture->linesize);
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}
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int avpicture_layout(const AVPicture* src, enum AVPixelFormat pix_fmt,
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int width, int height,
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unsigned char *dest, int dest_size)
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{
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int i, j, nb_planes = 0, linesizes[4];
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const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(pix_fmt);
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int size = avpicture_get_size(pix_fmt, width, height);
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if (size > dest_size || size < 0)
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return AVERROR(EINVAL);
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for (i = 0; i < desc->nb_components; i++)
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nb_planes = FFMAX(desc->comp[i].plane, nb_planes);
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nb_planes++;
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av_image_fill_linesizes(linesizes, pix_fmt, width);
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for (i = 0; i < nb_planes; i++) {
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int h, shift = (i == 1 || i == 2) ? desc->log2_chroma_h : 0;
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const unsigned char *s = src->data[i];
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h = (height + (1 << shift) - 1) >> shift;
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for (j = 0; j < h; j++) {
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memcpy(dest, s, linesizes[i]);
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dest += linesizes[i];
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s += src->linesize[i];
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}
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}
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if (desc->flags & PIX_FMT_PAL)
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memcpy((unsigned char *)(((size_t)dest + 3) & ~3),
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src->data[1], 256 * 4);
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return size;
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}
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int avpicture_get_size(enum AVPixelFormat pix_fmt, int width, int height)
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{
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const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(pix_fmt);
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AVPicture dummy_pict;
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int ret;
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if ((ret = av_image_check_size(width, height, 0, NULL)) < 0)
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return ret;
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if (desc->flags & PIX_FMT_PSEUDOPAL)
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// do not include palette for these pseudo-paletted formats
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return width * height;
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return avpicture_fill(&dummy_pict, NULL, pix_fmt, width, height);
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}
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int avpicture_alloc(AVPicture *picture,
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enum AVPixelFormat pix_fmt, int width, int height)
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{
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int ret = av_image_alloc(picture->data, picture->linesize,
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width, height, pix_fmt, 1);
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if (ret < 0) {
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memset(picture, 0, sizeof(AVPicture));
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return ret;
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}
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return 0;
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}
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void avpicture_free(AVPicture *picture)
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{
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av_free(picture->data[0]);
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}
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void av_picture_copy(AVPicture *dst, const AVPicture *src,
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enum AVPixelFormat pix_fmt, int width, int height)
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{
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av_image_copy(dst->data, dst->linesize, src->data,
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src->linesize, pix_fmt, width, height);
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}
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@ -415,65 +415,6 @@ void avcodec_get_chroma_sub_sample(enum AVPixelFormat pix_fmt, int *h_shift, int
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*v_shift = desc->log2_chroma_h;
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*v_shift = desc->log2_chroma_h;
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}
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}
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int avpicture_fill(AVPicture *picture, uint8_t *ptr,
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enum AVPixelFormat pix_fmt, int width, int height)
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{
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int ret;
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if ((ret = av_image_check_size(width, height, 0, NULL)) < 0)
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return ret;
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if ((ret = av_image_fill_linesizes(picture->linesize, pix_fmt, width)) < 0)
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return ret;
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return av_image_fill_pointers(picture->data, pix_fmt, height, ptr, picture->linesize);
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}
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int avpicture_layout(const AVPicture* src, enum AVPixelFormat pix_fmt, int width, int height,
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unsigned char *dest, int dest_size)
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{
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int i, j, nb_planes = 0, linesizes[4];
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const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(pix_fmt);
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int size = avpicture_get_size(pix_fmt, width, height);
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if (size > dest_size || size < 0)
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return AVERROR(EINVAL);
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for (i = 0; i < desc->nb_components; i++)
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nb_planes = FFMAX(desc->comp[i].plane, nb_planes);
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nb_planes++;
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av_image_fill_linesizes(linesizes, pix_fmt, width);
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for (i = 0; i < nb_planes; i++) {
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int h, shift = (i == 1 || i == 2) ? desc->log2_chroma_h : 0;
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const unsigned char *s = src->data[i];
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h = (height + (1 << shift) - 1) >> shift;
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for (j = 0; j < h; j++) {
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memcpy(dest, s, linesizes[i]);
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dest += linesizes[i];
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s += src->linesize[i];
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}
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}
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if (desc->flags & PIX_FMT_PAL)
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memcpy((unsigned char *)(((size_t)dest + 3) & ~3), src->data[1], 256 * 4);
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return size;
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}
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int avpicture_get_size(enum AVPixelFormat pix_fmt, int width, int height)
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{
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AVPicture dummy_pict;
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const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(pix_fmt);
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if(av_image_check_size(width, height, 0, NULL))
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return -1;
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if (desc->flags & PIX_FMT_PSEUDOPAL)
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// do not include palette for these pseudo-paletted formats
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return width * height;
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return avpicture_fill(&dummy_pict, NULL, pix_fmt, width, height);
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}
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int avcodec_get_pix_fmt_loss(enum AVPixelFormat dst_pix_fmt, enum AVPixelFormat src_pix_fmt,
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int avcodec_get_pix_fmt_loss(enum AVPixelFormat dst_pix_fmt, enum AVPixelFormat src_pix_fmt,
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int has_alpha)
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int has_alpha)
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@ -672,13 +613,6 @@ enum AVPixelFormat avcodec_find_best_pix_fmt2(enum AVPixelFormat *pix_fmt_list,
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return dst_pix_fmt;
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return dst_pix_fmt;
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}
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}
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void av_picture_copy(AVPicture *dst, const AVPicture *src,
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enum AVPixelFormat pix_fmt, int width, int height)
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{
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av_image_copy(dst->data, dst->linesize, src->data,
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src->linesize, pix_fmt, width, height);
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}
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/* 2x2 -> 1x1 */
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/* 2x2 -> 1x1 */
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void ff_shrink22(uint8_t *dst, int dst_wrap,
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void ff_shrink22(uint8_t *dst, int dst_wrap,
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const uint8_t *src, int src_wrap,
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const uint8_t *src, int src_wrap,
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@ -765,25 +699,6 @@ void ff_shrink88(uint8_t *dst, int dst_wrap,
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}
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}
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}
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}
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int avpicture_alloc(AVPicture *picture,
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enum AVPixelFormat pix_fmt, int width, int height)
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{
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int ret;
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if ((ret = av_image_alloc(picture->data, picture->linesize, width, height, pix_fmt, 1)) < 0) {
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memset(picture, 0, sizeof(AVPicture));
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return ret;
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}
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return 0;
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}
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void avpicture_free(AVPicture *picture)
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{
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av_free(picture->data[0]);
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}
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/* return true if yuv planar */
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/* return true if yuv planar */
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static inline int is_yuv_planar(const PixFmtInfo *ps)
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static inline int is_yuv_planar(const PixFmtInfo *ps)
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{
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{
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