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f47a7cb777
pixdesc.c, which are now not anymore marked as static inline. Fix the inclusion of the private header intreadwrite.h in the public header pixdesc.h. Originally committed as revision 21854 to svn://svn.ffmpeg.org/ffmpeg/trunk
786 lines
21 KiB
C
786 lines
21 KiB
C
/*
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* pixel format descriptor
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* Copyright (c) 2009 Michael Niedermayer <michaelni@gmx.at>
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*
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* This file is part of FFmpeg.
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*
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* FFmpeg 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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* FFmpeg 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 FFmpeg; 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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#include "pixfmt.h"
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#include "pixdesc.h"
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#include "intreadwrite.h"
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void read_line(uint16_t *dst, const uint8_t *data[4], const int linesize[4],
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const AVPixFmtDescriptor *desc, int x, int y, int c, int w, int read_pal_component)
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{
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AVComponentDescriptor comp= desc->comp[c];
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int plane= comp.plane;
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int depth= comp.depth_minus1+1;
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int mask = (1<<depth)-1;
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int shift= comp.shift;
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int step = comp.step_minus1+1;
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int flags= desc->flags;
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if (flags & PIX_FMT_BITSTREAM){
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int skip = x*step + comp.offset_plus1-1;
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const uint8_t *p = data[plane] + y*linesize[plane] + (skip>>3);
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int shift = 8 - depth - (skip&7);
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while(w--){
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int val = (*p >> shift) & mask;
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if(read_pal_component)
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val= data[1][4*val + c];
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shift -= step;
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p -= shift>>3;
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shift &= 7;
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*dst++= val;
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}
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} else {
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const uint8_t *p = data[plane]+ y*linesize[plane] + x*step + comp.offset_plus1-1;
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while(w--){
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int val;
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if(flags & PIX_FMT_BE) val= AV_RB16(p);
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else val= AV_RL16(p);
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val = (val>>shift) & mask;
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if(read_pal_component)
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val= data[1][4*val + c];
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p+= step;
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*dst++= val;
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}
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}
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}
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void write_line(const uint16_t *src, uint8_t *data[4], const int linesize[4],
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const AVPixFmtDescriptor *desc, int x, int y, int c, int w)
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{
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AVComponentDescriptor comp = desc->comp[c];
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int plane = comp.plane;
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int depth = comp.depth_minus1+1;
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int step = comp.step_minus1+1;
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int flags = desc->flags;
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if (flags & PIX_FMT_BITSTREAM) {
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int skip = x*step + comp.offset_plus1-1;
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uint8_t *p = data[plane] + y*linesize[plane] + (skip>>3);
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int shift = 8 - depth - (skip&7);
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while (w--) {
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*p |= *src++ << shift;
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shift -= step;
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p -= shift>>3;
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shift &= 7;
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}
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} else {
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int shift = comp.shift;
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uint8_t *p = data[plane]+ y*linesize[plane] + x*step + comp.offset_plus1-1;
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while (w--) {
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if (flags & PIX_FMT_BE) {
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uint16_t val = AV_RB16(p) | (*src++<<shift);
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AV_WB16(p, val);
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} else {
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uint16_t val = AV_RL16(p) | (*src++<<shift);
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AV_WL16(p, val);
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}
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p+= step;
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}
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}
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}
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const AVPixFmtDescriptor av_pix_fmt_descriptors[PIX_FMT_NB] = {
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[PIX_FMT_YUV420P] = {
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.name = "yuv420p",
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.nb_components= 3,
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.log2_chroma_w= 1,
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.log2_chroma_h= 1,
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.comp = {
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{0,0,1,0,7}, /* Y */
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{1,0,1,0,7}, /* U */
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{2,0,1,0,7}, /* V */
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},
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},
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[PIX_FMT_YUYV422] = {
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.name = "yuyv422",
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.nb_components= 3,
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.log2_chroma_w= 1,
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.log2_chroma_h= 0,
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.comp = {
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{0,1,1,0,7}, /* Y */
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{0,3,2,0,7}, /* U */
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{0,3,4,0,7}, /* V */
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},
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},
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[PIX_FMT_RGB24] = {
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.name = "rgb24",
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.nb_components= 3,
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.log2_chroma_w= 0,
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.log2_chroma_h= 0,
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.comp = {
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{0,2,1,0,7}, /* R */
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{0,2,2,0,7}, /* G */
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{0,2,3,0,7}, /* B */
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},
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},
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[PIX_FMT_BGR24] = {
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.name = "bgr24",
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.nb_components= 3,
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.log2_chroma_w= 0,
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.log2_chroma_h= 0,
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.comp = {
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{0,2,1,0,7}, /* B */
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{0,2,2,0,7}, /* G */
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{0,2,3,0,7}, /* R */
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},
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},
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[PIX_FMT_YUV422P] = {
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.name = "yuv422p",
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.nb_components= 3,
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.log2_chroma_w= 1,
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.log2_chroma_h= 0,
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.comp = {
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{0,0,1,0,7}, /* Y */
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{1,0,1,0,7}, /* U */
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{2,0,1,0,7}, /* V */
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},
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},
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[PIX_FMT_YUV444P] = {
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.name = "yuv444p",
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.nb_components= 3,
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.log2_chroma_w= 0,
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.log2_chroma_h= 0,
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.comp = {
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{0,0,1,0,7}, /* Y */
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{1,0,1,0,7}, /* U */
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{2,0,1,0,7}, /* V */
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},
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},
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[PIX_FMT_YUV410P] = {
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.name = "yuv410p",
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.nb_components= 3,
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.log2_chroma_w= 2,
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.log2_chroma_h= 2,
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.comp = {
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{0,0,1,0,7}, /* Y */
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{1,0,1,0,7}, /* U */
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{2,0,1,0,7}, /* V */
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},
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},
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[PIX_FMT_YUV411P] = {
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.name = "yuv411p",
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.nb_components= 3,
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.log2_chroma_w= 2,
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.log2_chroma_h= 0,
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.comp = {
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{0,0,1,0,7}, /* Y */
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{1,0,1,0,7}, /* U */
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{2,0,1,0,7}, /* V */
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},
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},
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[PIX_FMT_GRAY8] = {
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.name = "gray",
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.nb_components= 1,
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.log2_chroma_w= 0,
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.log2_chroma_h= 0,
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.comp = {
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{0,0,1,0,7}, /* Y */
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},
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},
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[PIX_FMT_MONOWHITE] = {
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.name = "monow",
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.nb_components= 1,
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.log2_chroma_w= 0,
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.log2_chroma_h= 0,
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.comp = {
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{0,0,1,0,0}, /* Y */
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},
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.flags = PIX_FMT_BITSTREAM,
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},
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[PIX_FMT_MONOBLACK] = {
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.name = "monob",
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.nb_components= 1,
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.log2_chroma_w= 0,
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.log2_chroma_h= 0,
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.comp = {
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{0,0,1,7,0}, /* Y */
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},
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.flags = PIX_FMT_BITSTREAM,
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},
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[PIX_FMT_PAL8] = {
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.name = "pal8",
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.nb_components= 1,
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.log2_chroma_w= 0,
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.log2_chroma_h= 0,
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.comp = {
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{0,0,1,0,7},
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},
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.flags = PIX_FMT_PAL,
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},
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[PIX_FMT_YUVJ420P] = {
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.name = "yuvj420p",
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.nb_components= 3,
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.log2_chroma_w= 1,
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.log2_chroma_h= 1,
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.comp = {
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{0,0,1,0,7}, /* Y */
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{1,0,1,0,7}, /* U */
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{2,0,1,0,7}, /* V */
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},
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},
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[PIX_FMT_YUVJ422P] = {
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.name = "yuvj422p",
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.nb_components= 3,
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.log2_chroma_w= 1,
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.log2_chroma_h= 0,
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.comp = {
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{0,0,1,0,7}, /* Y */
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{1,0,1,0,7}, /* U */
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{2,0,1,0,7}, /* V */
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},
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},
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[PIX_FMT_YUVJ444P] = {
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.name = "yuvj444p",
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.nb_components= 3,
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.log2_chroma_w= 0,
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.log2_chroma_h= 0,
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.comp = {
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{0,0,1,0,7}, /* Y */
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{1,0,1,0,7}, /* U */
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{2,0,1,0,7}, /* V */
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},
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},
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[PIX_FMT_XVMC_MPEG2_MC] = {
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.name = "xvmcmc",
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.flags = PIX_FMT_HWACCEL,
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},
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[PIX_FMT_XVMC_MPEG2_IDCT] = {
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.name = "xvmcidct",
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.flags = PIX_FMT_HWACCEL,
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},
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[PIX_FMT_UYVY422] = {
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.name = "uyvy422",
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.nb_components= 3,
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.log2_chroma_w= 1,
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.log2_chroma_h= 0,
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.comp = {
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{0,1,2,0,7}, /* Y */
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{0,3,1,0,7}, /* U */
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{0,3,3,0,7}, /* V */
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},
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},
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[PIX_FMT_UYYVYY411] = {
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.name = "uyyvyy411",
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.nb_components= 3,
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.log2_chroma_w= 2,
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.log2_chroma_h= 0,
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.comp = {
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{0,3,2,0,7}, /* Y */
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{0,5,1,0,7}, /* U */
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{0,5,4,0,7}, /* V */
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},
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},
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[PIX_FMT_BGR8] = {
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.name = "bgr8",
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.nb_components= 3,
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.log2_chroma_w= 0,
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.log2_chroma_h= 0,
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.comp = {
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{0,0,1,6,1}, /* B */
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{0,0,1,3,2}, /* G */
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{0,0,1,0,2}, /* R */
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},
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.flags = PIX_FMT_PAL,
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},
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[PIX_FMT_BGR4] = {
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.name = "bgr4",
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.nb_components= 3,
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.log2_chroma_w= 0,
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.log2_chroma_h= 0,
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.comp = {
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{0,3,1,0,0}, /* B */
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{0,3,2,0,1}, /* G */
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{0,3,4,0,0}, /* R */
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},
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.flags = PIX_FMT_BITSTREAM,
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},
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[PIX_FMT_BGR4_BYTE] = {
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.name = "bgr4_byte",
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.nb_components= 3,
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.log2_chroma_w= 0,
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.log2_chroma_h= 0,
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.comp = {
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{0,0,1,3,0}, /* B */
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{0,0,1,1,1}, /* G */
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{0,0,1,0,0}, /* R */
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},
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.flags = PIX_FMT_PAL,
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},
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[PIX_FMT_RGB8] = {
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.name = "rgb8",
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.nb_components= 3,
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.log2_chroma_w= 0,
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.log2_chroma_h= 0,
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.comp = {
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{0,0,1,6,1}, /* R */
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{0,0,1,3,2}, /* G */
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{0,0,1,0,2}, /* B */
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},
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.flags = PIX_FMT_PAL,
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},
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[PIX_FMT_RGB4] = {
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.name = "rgb4",
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.nb_components= 3,
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.log2_chroma_w= 0,
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.log2_chroma_h= 0,
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.comp = {
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{0,3,1,0,0}, /* R */
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{0,3,2,0,1}, /* G */
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{0,3,4,0,0}, /* B */
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},
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.flags = PIX_FMT_BITSTREAM,
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},
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[PIX_FMT_RGB4_BYTE] = {
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.name = "rgb4_byte",
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.nb_components= 3,
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.log2_chroma_w= 0,
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.log2_chroma_h= 0,
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.comp = {
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{0,0,1,3,0}, /* R */
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{0,0,1,1,1}, /* G */
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{0,0,1,0,0}, /* B */
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},
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.flags = PIX_FMT_PAL,
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},
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[PIX_FMT_NV12] = {
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.name = "nv12",
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.nb_components= 3,
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.log2_chroma_w= 1,
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.log2_chroma_h= 1,
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.comp = {
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{0,0,1,0,7}, /* Y */
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{1,1,1,0,7}, /* U */
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{1,1,2,0,7}, /* V */
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},
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},
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[PIX_FMT_NV21] = {
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.name = "nv21",
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.nb_components= 3,
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.log2_chroma_w= 1,
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.log2_chroma_h= 1,
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.comp = {
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{0,0,1,0,7}, /* Y */
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{1,1,1,0,7}, /* V */
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{1,1,2,0,7}, /* U */
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},
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},
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[PIX_FMT_ARGB] = {
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.name = "argb",
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.nb_components= 4,
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.log2_chroma_w= 0,
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.log2_chroma_h= 0,
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.comp = {
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{0,3,1,0,7}, /* A */
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{0,3,2,0,7}, /* R */
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{0,3,3,0,7}, /* G */
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{0,3,4,0,7}, /* B */
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},
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},
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[PIX_FMT_RGBA] = {
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.name = "rgba",
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.nb_components= 4,
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.log2_chroma_w= 0,
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.log2_chroma_h= 0,
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.comp = {
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{0,3,1,0,7}, /* R */
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{0,3,2,0,7}, /* G */
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{0,3,3,0,7}, /* B */
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{0,3,4,0,7}, /* A */
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},
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},
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[PIX_FMT_ABGR] = {
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.name = "abgr",
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.nb_components= 4,
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.log2_chroma_w= 0,
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.log2_chroma_h= 0,
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.comp = {
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{0,3,1,0,7}, /* A */
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{0,3,2,0,7}, /* B */
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{0,3,3,0,7}, /* G */
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{0,3,4,0,7}, /* R */
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},
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},
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[PIX_FMT_BGRA] = {
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.name = "bgra",
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.nb_components= 4,
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.log2_chroma_w= 0,
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.log2_chroma_h= 0,
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.comp = {
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{0,3,1,0,7}, /* B */
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{0,3,2,0,7}, /* G */
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{0,3,3,0,7}, /* R */
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{0,3,4,0,7}, /* A */
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},
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},
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[PIX_FMT_GRAY16BE] = {
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.name = "gray16be",
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.nb_components= 1,
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.log2_chroma_w= 0,
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.log2_chroma_h= 0,
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.comp = {
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{0,1,1,0,15}, /* Y */
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},
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.flags = PIX_FMT_BE,
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},
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[PIX_FMT_GRAY16LE] = {
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.name = "gray16le",
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.nb_components= 1,
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.log2_chroma_w= 0,
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.log2_chroma_h= 0,
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.comp = {
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{0,1,1,0,15}, /* Y */
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},
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},
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[PIX_FMT_YUV440P] = {
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.name = "yuv440p",
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.nb_components= 3,
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.log2_chroma_w= 0,
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.log2_chroma_h= 1,
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.comp = {
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{0,0,1,0,7}, /* Y */
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{1,0,1,0,7}, /* U */
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{2,0,1,0,7}, /* V */
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},
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},
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[PIX_FMT_YUVJ440P] = {
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.name = "yuvj440p",
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.nb_components= 3,
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.log2_chroma_w= 0,
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.log2_chroma_h= 1,
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.comp = {
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{0,0,1,0,7}, /* Y */
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{1,0,1,0,7}, /* U */
|
|
{2,0,1,0,7}, /* V */
|
|
},
|
|
},
|
|
[PIX_FMT_YUVA420P] = {
|
|
.name = "yuva420p",
|
|
.nb_components= 4,
|
|
.log2_chroma_w= 1,
|
|
.log2_chroma_h= 1,
|
|
.comp = {
|
|
{0,0,1,0,7}, /* Y */
|
|
{1,0,1,0,7}, /* U */
|
|
{2,0,1,0,7}, /* V */
|
|
{3,0,1,0,7}, /* A */
|
|
},
|
|
},
|
|
[PIX_FMT_VDPAU_H264] = {
|
|
.name = "vdpau_h264",
|
|
.log2_chroma_w = 1,
|
|
.log2_chroma_h = 1,
|
|
.flags = PIX_FMT_HWACCEL,
|
|
},
|
|
[PIX_FMT_VDPAU_MPEG1] = {
|
|
.name = "vdpau_mpeg1",
|
|
.log2_chroma_w = 1,
|
|
.log2_chroma_h = 1,
|
|
.flags = PIX_FMT_HWACCEL,
|
|
},
|
|
[PIX_FMT_VDPAU_MPEG2] = {
|
|
.name = "vdpau_mpeg2",
|
|
.log2_chroma_w = 1,
|
|
.log2_chroma_h = 1,
|
|
.flags = PIX_FMT_HWACCEL,
|
|
},
|
|
[PIX_FMT_VDPAU_WMV3] = {
|
|
.name = "vdpau_wmv3",
|
|
.log2_chroma_w = 1,
|
|
.log2_chroma_h = 1,
|
|
.flags = PIX_FMT_HWACCEL,
|
|
},
|
|
[PIX_FMT_VDPAU_VC1] = {
|
|
.name = "vdpau_vc1",
|
|
.log2_chroma_w = 1,
|
|
.log2_chroma_h = 1,
|
|
.flags = PIX_FMT_HWACCEL,
|
|
},
|
|
[PIX_FMT_VDPAU_MPEG4] = {
|
|
.name = "vdpau_mpeg4",
|
|
.log2_chroma_w = 1,
|
|
.log2_chroma_h = 1,
|
|
.flags = PIX_FMT_HWACCEL,
|
|
},
|
|
[PIX_FMT_RGB48BE] = {
|
|
.name = "rgb48be",
|
|
.nb_components= 3,
|
|
.log2_chroma_w= 0,
|
|
.log2_chroma_h= 0,
|
|
.comp = {
|
|
{0,5,1,0,15}, /* R */
|
|
{0,5,3,0,15}, /* G */
|
|
{0,5,5,0,15}, /* B */
|
|
},
|
|
.flags = PIX_FMT_BE,
|
|
},
|
|
[PIX_FMT_RGB48LE] = {
|
|
.name = "rgb48le",
|
|
.nb_components= 3,
|
|
.log2_chroma_w= 0,
|
|
.log2_chroma_h= 0,
|
|
.comp = {
|
|
{0,5,1,0,15}, /* R */
|
|
{0,5,3,0,15}, /* G */
|
|
{0,5,5,0,15}, /* B */
|
|
},
|
|
},
|
|
[PIX_FMT_RGB565BE] = {
|
|
.name = "rgb565be",
|
|
.nb_components= 3,
|
|
.log2_chroma_w= 0,
|
|
.log2_chroma_h= 0,
|
|
.comp = {
|
|
{0,1,0,3,4}, /* R */
|
|
{0,1,1,5,5}, /* G */
|
|
{0,1,1,0,4}, /* B */
|
|
},
|
|
.flags = PIX_FMT_BE,
|
|
},
|
|
[PIX_FMT_RGB565LE] = {
|
|
.name = "rgb565le",
|
|
.nb_components= 3,
|
|
.log2_chroma_w= 0,
|
|
.log2_chroma_h= 0,
|
|
.comp = {
|
|
{0,1,2,3,4}, /* R */
|
|
{0,1,1,5,5}, /* G */
|
|
{0,1,1,0,4}, /* B */
|
|
},
|
|
},
|
|
[PIX_FMT_RGB555BE] = {
|
|
.name = "rgb555be",
|
|
.nb_components= 3,
|
|
.log2_chroma_w= 0,
|
|
.log2_chroma_h= 0,
|
|
.comp = {
|
|
{0,1,0,2,4}, /* R */
|
|
{0,1,1,5,4}, /* G */
|
|
{0,1,1,0,4}, /* B */
|
|
},
|
|
.flags = PIX_FMT_BE,
|
|
},
|
|
[PIX_FMT_RGB555LE] = {
|
|
.name = "rgb555le",
|
|
.nb_components= 3,
|
|
.log2_chroma_w= 0,
|
|
.log2_chroma_h= 0,
|
|
.comp = {
|
|
{0,1,2,2,4}, /* R */
|
|
{0,1,1,5,4}, /* G */
|
|
{0,1,1,0,4}, /* B */
|
|
},
|
|
},
|
|
[PIX_FMT_BGR565BE] = {
|
|
.name = "bgr565be",
|
|
.nb_components= 3,
|
|
.log2_chroma_w= 0,
|
|
.log2_chroma_h= 0,
|
|
.comp = {
|
|
{0,1,0,3,4}, /* B */
|
|
{0,1,1,5,5}, /* G */
|
|
{0,1,1,0,4}, /* R */
|
|
},
|
|
.flags = PIX_FMT_BE,
|
|
},
|
|
[PIX_FMT_BGR565LE] = {
|
|
.name = "bgr565le",
|
|
.nb_components= 3,
|
|
.log2_chroma_w= 0,
|
|
.log2_chroma_h= 0,
|
|
.comp = {
|
|
{0,1,2,3,4}, /* B */
|
|
{0,1,1,5,5}, /* G */
|
|
{0,1,1,0,4}, /* R */
|
|
},
|
|
},
|
|
[PIX_FMT_BGR555BE] = {
|
|
.name = "bgr555be",
|
|
.nb_components= 3,
|
|
.log2_chroma_w= 0,
|
|
.log2_chroma_h= 0,
|
|
.comp = {
|
|
{0,1,0,2,4}, /* B */
|
|
{0,1,1,5,4}, /* G */
|
|
{0,1,1,0,4}, /* R */
|
|
},
|
|
.flags = PIX_FMT_BE,
|
|
},
|
|
[PIX_FMT_BGR555LE] = {
|
|
.name = "bgr555le",
|
|
.nb_components= 3,
|
|
.log2_chroma_w= 0,
|
|
.log2_chroma_h= 0,
|
|
.comp = {
|
|
{0,1,2,2,4}, /* B */
|
|
{0,1,1,5,4}, /* G */
|
|
{0,1,1,0,4}, /* R */
|
|
},
|
|
},
|
|
[PIX_FMT_VAAPI_MOCO] = {
|
|
.name = "vaapi_moco",
|
|
.log2_chroma_w = 1,
|
|
.log2_chroma_h = 1,
|
|
.flags = PIX_FMT_HWACCEL,
|
|
},
|
|
[PIX_FMT_VAAPI_IDCT] = {
|
|
.name = "vaapi_idct",
|
|
.log2_chroma_w = 1,
|
|
.log2_chroma_h = 1,
|
|
.flags = PIX_FMT_HWACCEL,
|
|
},
|
|
[PIX_FMT_VAAPI_VLD] = {
|
|
.name = "vaapi_vld",
|
|
.log2_chroma_w = 1,
|
|
.log2_chroma_h = 1,
|
|
.flags = PIX_FMT_HWACCEL,
|
|
},
|
|
[PIX_FMT_YUV420P16LE] = {
|
|
.name = "yuv420p16le",
|
|
.nb_components= 3,
|
|
.log2_chroma_w= 1,
|
|
.log2_chroma_h= 1,
|
|
.comp = {
|
|
{0,1,1,0,15}, /* Y */
|
|
{1,1,1,0,15}, /* U */
|
|
{2,1,1,0,15}, /* V */
|
|
},
|
|
},
|
|
[PIX_FMT_YUV420P16BE] = {
|
|
.name = "yuv420p16be",
|
|
.nb_components= 3,
|
|
.log2_chroma_w= 1,
|
|
.log2_chroma_h= 1,
|
|
.comp = {
|
|
{0,1,1,0,15}, /* Y */
|
|
{1,1,1,0,15}, /* U */
|
|
{2,1,1,0,15}, /* V */
|
|
},
|
|
.flags = PIX_FMT_BE,
|
|
},
|
|
[PIX_FMT_YUV422P16LE] = {
|
|
.name = "yuv422p16le",
|
|
.nb_components= 3,
|
|
.log2_chroma_w= 1,
|
|
.log2_chroma_h= 0,
|
|
.comp = {
|
|
{0,1,1,0,15}, /* Y */
|
|
{1,1,1,0,15}, /* U */
|
|
{2,1,1,0,15}, /* V */
|
|
},
|
|
},
|
|
[PIX_FMT_YUV422P16BE] = {
|
|
.name = "yuv422p16be",
|
|
.nb_components= 3,
|
|
.log2_chroma_w= 1,
|
|
.log2_chroma_h= 0,
|
|
.comp = {
|
|
{0,1,1,0,15}, /* Y */
|
|
{1,1,1,0,15}, /* U */
|
|
{2,1,1,0,15}, /* V */
|
|
},
|
|
.flags = PIX_FMT_BE,
|
|
},
|
|
[PIX_FMT_YUV444P16LE] = {
|
|
.name = "yuv444p16le",
|
|
.nb_components= 3,
|
|
.log2_chroma_w= 0,
|
|
.log2_chroma_h= 0,
|
|
.comp = {
|
|
{0,1,1,0,15}, /* Y */
|
|
{1,1,1,0,15}, /* U */
|
|
{2,1,1,0,15}, /* V */
|
|
},
|
|
},
|
|
[PIX_FMT_YUV444P16BE] = {
|
|
.name = "yuv444p16be",
|
|
.nb_components= 3,
|
|
.log2_chroma_w= 0,
|
|
.log2_chroma_h= 0,
|
|
.comp = {
|
|
{0,1,1,0,15}, /* Y */
|
|
{1,1,1,0,15}, /* U */
|
|
{2,1,1,0,15}, /* V */
|
|
},
|
|
.flags = PIX_FMT_BE,
|
|
},
|
|
[PIX_FMT_DXVA2_VLD] = {
|
|
.name = "dxva2_vld",
|
|
.log2_chroma_w = 1,
|
|
.log2_chroma_h = 1,
|
|
.flags = PIX_FMT_HWACCEL,
|
|
},
|
|
};
|
|
|
|
static enum PixelFormat get_pix_fmt_internal(const char *name)
|
|
{
|
|
enum PixelFormat pix_fmt;
|
|
|
|
for (pix_fmt = 0; pix_fmt < PIX_FMT_NB; pix_fmt++)
|
|
if (av_pix_fmt_descriptors[pix_fmt].name &&
|
|
!strcmp(av_pix_fmt_descriptors[pix_fmt].name, name))
|
|
return pix_fmt;
|
|
|
|
return PIX_FMT_NONE;
|
|
}
|
|
|
|
#if HAVE_BIGENDIAN
|
|
# define X_NE(be, le) be
|
|
#else
|
|
# define X_NE(be, le) le
|
|
#endif
|
|
|
|
enum PixelFormat av_get_pix_fmt(const char *name)
|
|
{
|
|
enum PixelFormat pix_fmt;
|
|
|
|
if (!strcmp(name, "rgb32"))
|
|
name = X_NE("argb", "bgra");
|
|
else if (!strcmp(name, "bgr32"))
|
|
name = X_NE("abgr", "rgba");
|
|
|
|
pix_fmt = get_pix_fmt_internal(name);
|
|
if (pix_fmt == PIX_FMT_NONE) {
|
|
char name2[32];
|
|
|
|
snprintf(name2, sizeof(name2), "%s%s", name, X_NE("be", "le"));
|
|
pix_fmt = get_pix_fmt_internal(name2);
|
|
}
|
|
return pix_fmt;
|
|
}
|
|
|
|
int av_get_bits_per_pixel(const AVPixFmtDescriptor *pixdesc)
|
|
{
|
|
int c, bits = 0;
|
|
int log2_pixels = pixdesc->log2_chroma_w + pixdesc->log2_chroma_h;
|
|
|
|
for (c = 0; c < pixdesc->nb_components; c++) {
|
|
int s = c==1 || c==2 ? 0 : log2_pixels;
|
|
bits += (pixdesc->comp[c].depth_minus1+1) << s;
|
|
}
|
|
|
|
return bits >> log2_pixels;
|
|
}
|