* pixel format descriptor
* Copyright (c) 2009 Michael Niedermayer <michaelni@gmx.at>
*
- * This file is part of FFmpeg.
+ * This file is part of Libav.
*
- * FFmpeg is free software; you can redistribute it and/or
+ * Libav 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,
+ * Libav 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
+ * License along with Libav; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
+#include <stdio.h>
+#include <string.h>
#include "pixfmt.h"
#include "pixdesc.h"
+#include "intreadwrite.h"
+
+void av_read_image_line(uint16_t *dst, const uint8_t *data[4], const int linesize[4],
+ const AVPixFmtDescriptor *desc, int x, int y, int c, int w, int read_pal_component)
+{
+ AVComponentDescriptor comp= desc->comp[c];
+ int plane= comp.plane;
+ int depth= comp.depth_minus1+1;
+ int mask = (1<<depth)-1;
+ int shift= comp.shift;
+ int step = comp.step_minus1+1;
+ int flags= desc->flags;
+
+ if (flags & PIX_FMT_BITSTREAM){
+ int skip = x*step + comp.offset_plus1-1;
+ const uint8_t *p = data[plane] + y*linesize[plane] + (skip>>3);
+ int shift = 8 - depth - (skip&7);
+
+ while(w--){
+ int val = (*p >> shift) & mask;
+ if(read_pal_component)
+ val= data[1][4*val + c];
+ shift -= step;
+ p -= shift>>3;
+ shift &= 7;
+ *dst++= val;
+ }
+ } else {
+ const uint8_t *p = data[plane]+ y*linesize[plane] + x*step + comp.offset_plus1-1;
+ int is_8bit = shift + depth <= 8;
+
+ if (is_8bit)
+ p += !!(flags & PIX_FMT_BE);
+
+ while(w--){
+ int val = is_8bit ? *p :
+ flags & PIX_FMT_BE ? AV_RB16(p) : AV_RL16(p);
+ val = (val>>shift) & mask;
+ if(read_pal_component)
+ val= data[1][4*val + c];
+ p+= step;
+ *dst++= val;
+ }
+ }
+}
+
+void av_write_image_line(const uint16_t *src, uint8_t *data[4], const int linesize[4],
+ const AVPixFmtDescriptor *desc, int x, int y, int c, int w)
+{
+ AVComponentDescriptor comp = desc->comp[c];
+ int plane = comp.plane;
+ int depth = comp.depth_minus1+1;
+ int step = comp.step_minus1+1;
+ int flags = desc->flags;
+
+ if (flags & PIX_FMT_BITSTREAM) {
+ int skip = x*step + comp.offset_plus1-1;
+ uint8_t *p = data[plane] + y*linesize[plane] + (skip>>3);
+ int shift = 8 - depth - (skip&7);
+
+ while (w--) {
+ *p |= *src++ << shift;
+ shift -= step;
+ p -= shift>>3;
+ shift &= 7;
+ }
+ } else {
+ int shift = comp.shift;
+ uint8_t *p = data[plane]+ y*linesize[plane] + x*step + comp.offset_plus1-1;
+
+ if (shift + depth <= 8) {
+ p += !!(flags & PIX_FMT_BE);
+ while (w--) {
+ *p |= (*src++<<shift);
+ p += step;
+ }
+ } else {
+ while (w--) {
+ if (flags & PIX_FMT_BE) {
+ uint16_t val = AV_RB16(p) | (*src++<<shift);
+ AV_WB16(p, val);
+ } else {
+ uint16_t val = AV_RL16(p) | (*src++<<shift);
+ AV_WL16(p, val);
+ }
+ p+= step;
+ }
+ }
+ }
+}
+
const AVPixFmtDescriptor av_pix_fmt_descriptors[PIX_FMT_NB] = {
[PIX_FMT_YUV420P] = {
.name = "yuv420p",
.comp = {
{0,0,1,0,7}, /* Y */
},
+ .flags = PIX_FMT_PAL,
},
[PIX_FMT_MONOWHITE] = {
.name = "monow",
{0,1,1,0,4}, /* B */
},
},
+ [PIX_FMT_RGB444BE] = {
+ .name = "rgb444be",
+ .nb_components= 3,
+ .log2_chroma_w= 0,
+ .log2_chroma_h= 0,
+ .comp = {
+ {0,1,0,0,3}, /* R */
+ {0,1,1,4,3}, /* G */
+ {0,1,1,0,3}, /* B */
+ },
+ .flags = PIX_FMT_BE,
+ },
+ [PIX_FMT_RGB444LE] = {
+ .name = "rgb444le",
+ .nb_components= 3,
+ .log2_chroma_w= 0,
+ .log2_chroma_h= 0,
+ .comp = {
+ {0,1,2,0,3}, /* R */
+ {0,1,1,4,3}, /* G */
+ {0,1,1,0,3}, /* B */
+ },
+ },
+ [PIX_FMT_BGR48BE] = {
+ .name = "bgr48be",
+ .nb_components= 3,
+ .log2_chroma_w= 0,
+ .log2_chroma_h= 0,
+ .comp = {
+ {0,5,1,0,15}, /* B */
+ {0,5,3,0,15}, /* G */
+ {0,5,5,0,15}, /* R */
+ },
+ .flags = PIX_FMT_BE,
+ },
+ [PIX_FMT_BGR48LE] = {
+ .name = "bgr48le",
+ .nb_components= 3,
+ .log2_chroma_w= 0,
+ .log2_chroma_h= 0,
+ .comp = {
+ {0,5,1,0,15}, /* B */
+ {0,5,3,0,15}, /* G */
+ {0,5,5,0,15}, /* R */
+ },
+ },
[PIX_FMT_BGR565BE] = {
.name = "bgr565be",
.nb_components= 3,
{0,1,1,0,4}, /* R */
},
},
+ [PIX_FMT_BGR444BE] = {
+ .name = "bgr444be",
+ .nb_components= 3,
+ .log2_chroma_w= 0,
+ .log2_chroma_h= 0,
+ .comp = {
+ {0,1,0,0,3}, /* B */
+ {0,1,1,4,3}, /* G */
+ {0,1,1,0,3}, /* R */
+ },
+ .flags = PIX_FMT_BE,
+ },
+ [PIX_FMT_BGR444LE] = {
+ .name = "bgr444le",
+ .nb_components= 3,
+ .log2_chroma_w= 0,
+ .log2_chroma_h= 0,
+ .comp = {
+ {0,1,2,0,3}, /* B */
+ {0,1,1,4,3}, /* G */
+ {0,1,1,0,3}, /* R */
+ },
+ },
[PIX_FMT_VAAPI_MOCO] = {
.name = "vaapi_moco",
.log2_chroma_w = 1,
.log2_chroma_h = 1,
.flags = PIX_FMT_HWACCEL,
},
+ [PIX_FMT_YUV420P9LE] = {
+ .name = "yuv420p9le",
+ .nb_components= 3,
+ .log2_chroma_w= 1,
+ .log2_chroma_h= 1,
+ .comp = {
+ {0,1,1,0,8}, /* Y */
+ {1,1,1,0,8}, /* U */
+ {2,1,1,0,8}, /* V */
+ },
+ },
+ [PIX_FMT_YUV420P9BE] = {
+ .name = "yuv420p9be",
+ .nb_components= 3,
+ .log2_chroma_w= 1,
+ .log2_chroma_h= 1,
+ .comp = {
+ {0,1,1,0,8}, /* Y */
+ {1,1,1,0,8}, /* U */
+ {2,1,1,0,8}, /* V */
+ },
+ .flags = PIX_FMT_BE,
+ },
+ [PIX_FMT_YUV420P10LE] = {
+ .name = "yuv420p10le",
+ .nb_components= 3,
+ .log2_chroma_w= 1,
+ .log2_chroma_h= 1,
+ .comp = {
+ {0,1,1,0,9}, /* Y */
+ {1,1,1,0,9}, /* U */
+ {2,1,1,0,9}, /* V */
+ },
+ },
+ [PIX_FMT_YUV420P10BE] = {
+ .name = "yuv420p10be",
+ .nb_components= 3,
+ .log2_chroma_w= 1,
+ .log2_chroma_h= 1,
+ .comp = {
+ {0,1,1,0,9}, /* Y */
+ {1,1,1,0,9}, /* U */
+ {2,1,1,0,9}, /* V */
+ },
+ .flags = PIX_FMT_BE,
+ },
[PIX_FMT_YUV420P16LE] = {
.name = "yuv420p16le",
.nb_components= 3,
},
.flags = PIX_FMT_BE,
},
+ [PIX_FMT_YUV422P10LE] = {
+ .name = "yuv422p10le",
+ .nb_components= 3,
+ .log2_chroma_w= 1,
+ .log2_chroma_h= 0,
+ .comp = {
+ {0,1,1,0,9}, /* Y */
+ {1,1,1,0,9}, /* U */
+ {2,1,1,0,9}, /* V */
+ },
+ },
+ [PIX_FMT_YUV422P10BE] = {
+ .name = "yuv422p10be",
+ .nb_components= 3,
+ .log2_chroma_w= 1,
+ .log2_chroma_h= 0,
+ .comp = {
+ {0,1,1,0,9}, /* Y */
+ {1,1,1,0,9}, /* U */
+ {2,1,1,0,9}, /* V */
+ },
+ .flags = PIX_FMT_BE,
+ },
[PIX_FMT_YUV422P16LE] = {
.name = "yuv422p16le",
.nb_components= 3,
},
.flags = PIX_FMT_BE,
},
+ [PIX_FMT_YUV444P10LE] = {
+ .name = "yuv444p10le",
+ .nb_components= 3,
+ .log2_chroma_w= 0,
+ .log2_chroma_h= 0,
+ .comp = {
+ {0,1,1,0,9}, /* Y */
+ {1,1,1,0,9}, /* U */
+ {2,1,1,0,9}, /* V */
+ },
+ },
+ [PIX_FMT_YUV444P10BE] = {
+ .name = "yuv444p10be",
+ .nb_components= 3,
+ .log2_chroma_w= 0,
+ .log2_chroma_h= 0,
+ .comp = {
+ {0,1,1,0,9}, /* Y */
+ {1,1,1,0,9}, /* U */
+ {2,1,1,0,9}, /* V */
+ },
+ .flags = PIX_FMT_BE,
+ },
+ [PIX_FMT_YUV444P9LE] = {
+ .name = "yuv444p9le",
+ .nb_components= 3,
+ .log2_chroma_w= 0,
+ .log2_chroma_h= 0,
+ .comp = {
+ {0,1,1,0,8}, /* Y */
+ {1,1,1,0,8}, /* U */
+ {2,1,1,0,8}, /* V */
+ },
+ },
+ [PIX_FMT_YUV444P9BE] = {
+ .name = "yuv444p9be",
+ .nb_components= 3,
+ .log2_chroma_w= 0,
+ .log2_chroma_h= 0,
+ .comp = {
+ {0,1,1,0,8}, /* Y */
+ {1,1,1,0,8}, /* U */
+ {2,1,1,0,8}, /* V */
+ },
+ .flags = PIX_FMT_BE,
+ },
[PIX_FMT_DXVA2_VLD] = {
.name = "dxva2_vld",
.log2_chroma_w = 1,
.log2_chroma_h = 1,
.flags = PIX_FMT_HWACCEL,
},
+ [PIX_FMT_Y400A] = {
+ .name = "y400a",
+ .nb_components= 2,
+ .comp = {
+ {0,1,1,0,7}, /* Y */
+ {0,1,2,0,7}, /* A */
+ },
+ },
};
static enum PixelFormat get_pix_fmt_internal(const char *name)
return PIX_FMT_NONE;
}
+const char *av_get_pix_fmt_name(enum PixelFormat pix_fmt)
+{
+ return (unsigned)pix_fmt < PIX_FMT_NB ?
+ av_pix_fmt_descriptors[pix_fmt].name : NULL;
+}
+
#if HAVE_BIGENDIAN
# define X_NE(be, le) be
#else
return bits >> log2_pixels;
}
+
+char *av_get_pix_fmt_string (char *buf, int buf_size, enum PixelFormat pix_fmt)
+{
+ /* print header */
+ if (pix_fmt < 0) {
+ snprintf (buf, buf_size, "name " " nb_components" " nb_bits");
+ } else {
+ const AVPixFmtDescriptor *pixdesc = &av_pix_fmt_descriptors[pix_fmt];
+ snprintf(buf, buf_size, "%-11s %7d %10d",
+ pixdesc->name, pixdesc->nb_components, av_get_bits_per_pixel(pixdesc));
+ }
+
+ return buf;
+}
projects / ffmpeg / blobdiff