* Misc image conversion routines
* Copyright (c) 2001, 2002, 2003 Fabrice Bellard
*
- * 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
*/
/**
- * @file libavcodec/imgconvert.c
+ * @file
* misc image conversion routines
*/
*/
#include "avcodec.h"
-#include "dsputil.h"
-#include "colorspace.h"
+#include "imgconvert.h"
+#include "internal.h"
+#include "mathops.h"
+#include "libavutil/colorspace.h"
+#include "libavutil/common.h"
+#include "libavutil/pixdesc.h"
+#include "libavutil/imgutils.h"
-#if HAVE_MMX
-#include "x86/mmx.h"
-#include "x86/dsputil_mmx.h"
-#endif
-
-#define xglue(x, y) x ## y
-#define glue(x, y) xglue(x, y)
-
-#define FF_COLOR_RGB 0 /**< RGB color space */
-#define FF_COLOR_GRAY 1 /**< gray color space */
-#define FF_COLOR_YUV 2 /**< YUV color space. 16 <= Y <= 235, 16 <= U, V <= 240 */
-#define FF_COLOR_YUV_JPEG 3 /**< YUV color space. 0 <= Y <= 255, 0 <= U, V <= 255 */
-
-#define FF_PIXEL_PLANAR 0 /**< each channel has one component in AVPicture */
-#define FF_PIXEL_PACKED 1 /**< only one components containing all the channels */
-#define FF_PIXEL_PALETTE 2 /**< one components containing indexes for a palette */
-
-typedef struct PixFmtInfo {
- const char *name;
- uint8_t nb_channels; /**< number of channels (including alpha) */
- uint8_t color_type; /**< color type (see FF_COLOR_xxx constants) */
- uint8_t pixel_type; /**< pixel storage type (see FF_PIXEL_xxx constants) */
- uint8_t is_alpha : 1; /**< true if alpha can be specified */
- uint8_t is_hwaccel : 1; /**< true if this is an HW accelerated format */
- uint8_t x_chroma_shift; /**< X chroma subsampling factor is 2 ^ shift */
- uint8_t y_chroma_shift; /**< Y chroma subsampling factor is 2 ^ shift */
- uint8_t depth; /**< bit depth of the color components */
-} PixFmtInfo;
-
-/* this table gives more information about formats */
-static const PixFmtInfo pix_fmt_info[PIX_FMT_NB] = {
- /* YUV formats */
- [PIX_FMT_YUV420P] = {
- .name = "yuv420p",
- .nb_channels = 3,
- .color_type = FF_COLOR_YUV,
- .pixel_type = FF_PIXEL_PLANAR,
- .depth = 8,
- .x_chroma_shift = 1, .y_chroma_shift = 1,
- },
- [PIX_FMT_YUV422P] = {
- .name = "yuv422p",
- .nb_channels = 3,
- .color_type = FF_COLOR_YUV,
- .pixel_type = FF_PIXEL_PLANAR,
- .depth = 8,
- .x_chroma_shift = 1, .y_chroma_shift = 0,
- },
- [PIX_FMT_YUV444P] = {
- .name = "yuv444p",
- .nb_channels = 3,
- .color_type = FF_COLOR_YUV,
- .pixel_type = FF_PIXEL_PLANAR,
- .depth = 8,
- .x_chroma_shift = 0, .y_chroma_shift = 0,
- },
- [PIX_FMT_YUYV422] = {
- .name = "yuyv422",
- .nb_channels = 1,
- .color_type = FF_COLOR_YUV,
- .pixel_type = FF_PIXEL_PACKED,
- .depth = 8,
- .x_chroma_shift = 1, .y_chroma_shift = 0,
- },
- [PIX_FMT_UYVY422] = {
- .name = "uyvy422",
- .nb_channels = 1,
- .color_type = FF_COLOR_YUV,
- .pixel_type = FF_PIXEL_PACKED,
- .depth = 8,
- .x_chroma_shift = 1, .y_chroma_shift = 0,
- },
- [PIX_FMT_YUV410P] = {
- .name = "yuv410p",
- .nb_channels = 3,
- .color_type = FF_COLOR_YUV,
- .pixel_type = FF_PIXEL_PLANAR,
- .depth = 8,
- .x_chroma_shift = 2, .y_chroma_shift = 2,
- },
- [PIX_FMT_YUV411P] = {
- .name = "yuv411p",
- .nb_channels = 3,
- .color_type = FF_COLOR_YUV,
- .pixel_type = FF_PIXEL_PLANAR,
- .depth = 8,
- .x_chroma_shift = 2, .y_chroma_shift = 0,
- },
- [PIX_FMT_YUV440P] = {
- .name = "yuv440p",
- .nb_channels = 3,
- .color_type = FF_COLOR_YUV,
- .pixel_type = FF_PIXEL_PLANAR,
- .depth = 8,
- .x_chroma_shift = 0, .y_chroma_shift = 1,
- },
- [PIX_FMT_YUV420P16LE] = {
- .name = "yuv420p16le",
- .nb_channels = 3,
- .color_type = FF_COLOR_YUV,
- .pixel_type = FF_PIXEL_PLANAR,
- .depth = 16,
- .x_chroma_shift = 1, .y_chroma_shift = 1,
- },
- [PIX_FMT_YUV422P16LE] = {
- .name = "yuv422p16le",
- .nb_channels = 3,
- .color_type = FF_COLOR_YUV,
- .pixel_type = FF_PIXEL_PLANAR,
- .depth = 16,
- .x_chroma_shift = 1, .y_chroma_shift = 0,
- },
- [PIX_FMT_YUV444P16LE] = {
- .name = "yuv444p16le",
- .nb_channels = 3,
- .color_type = FF_COLOR_YUV,
- .pixel_type = FF_PIXEL_PLANAR,
- .depth = 16,
- .x_chroma_shift = 0, .y_chroma_shift = 0,
- },
- [PIX_FMT_YUV420P16BE] = {
- .name = "yuv420p16be",
- .nb_channels = 3,
- .color_type = FF_COLOR_YUV,
- .pixel_type = FF_PIXEL_PLANAR,
- .depth = 16,
- .x_chroma_shift = 1, .y_chroma_shift = 1,
- },
- [PIX_FMT_YUV422P16BE] = {
- .name = "yuv422p16be",
- .nb_channels = 3,
- .color_type = FF_COLOR_YUV,
- .pixel_type = FF_PIXEL_PLANAR,
- .depth = 16,
- .x_chroma_shift = 1, .y_chroma_shift = 0,
- },
- [PIX_FMT_YUV444P16BE] = {
- .name = "yuv444p16be",
- .nb_channels = 3,
- .color_type = FF_COLOR_YUV,
- .pixel_type = FF_PIXEL_PLANAR,
- .depth = 16,
- .x_chroma_shift = 0, .y_chroma_shift = 0,
- },
-
-
- /* YUV formats with alpha plane */
- [PIX_FMT_YUVA420P] = {
- .name = "yuva420p",
- .nb_channels = 4,
- .color_type = FF_COLOR_YUV,
- .pixel_type = FF_PIXEL_PLANAR,
- .depth = 8,
- .x_chroma_shift = 1, .y_chroma_shift = 1,
- },
-
- /* JPEG YUV */
- [PIX_FMT_YUVJ420P] = {
- .name = "yuvj420p",
- .nb_channels = 3,
- .color_type = FF_COLOR_YUV_JPEG,
- .pixel_type = FF_PIXEL_PLANAR,
- .depth = 8,
- .x_chroma_shift = 1, .y_chroma_shift = 1,
- },
- [PIX_FMT_YUVJ422P] = {
- .name = "yuvj422p",
- .nb_channels = 3,
- .color_type = FF_COLOR_YUV_JPEG,
- .pixel_type = FF_PIXEL_PLANAR,
- .depth = 8,
- .x_chroma_shift = 1, .y_chroma_shift = 0,
- },
- [PIX_FMT_YUVJ444P] = {
- .name = "yuvj444p",
- .nb_channels = 3,
- .color_type = FF_COLOR_YUV_JPEG,
- .pixel_type = FF_PIXEL_PLANAR,
- .depth = 8,
- .x_chroma_shift = 0, .y_chroma_shift = 0,
- },
- [PIX_FMT_YUVJ440P] = {
- .name = "yuvj440p",
- .nb_channels = 3,
- .color_type = FF_COLOR_YUV_JPEG,
- .pixel_type = FF_PIXEL_PLANAR,
- .depth = 8,
- .x_chroma_shift = 0, .y_chroma_shift = 1,
- },
-
- /* RGB formats */
- [PIX_FMT_RGB24] = {
- .name = "rgb24",
- .nb_channels = 3,
- .color_type = FF_COLOR_RGB,
- .pixel_type = FF_PIXEL_PACKED,
- .depth = 8,
- .x_chroma_shift = 0, .y_chroma_shift = 0,
- },
- [PIX_FMT_BGR24] = {
- .name = "bgr24",
- .nb_channels = 3,
- .color_type = FF_COLOR_RGB,
- .pixel_type = FF_PIXEL_PACKED,
- .depth = 8,
- .x_chroma_shift = 0, .y_chroma_shift = 0,
- },
- [PIX_FMT_ARGB] = {
- .name = "argb",
- .nb_channels = 4, .is_alpha = 1,
- .color_type = FF_COLOR_RGB,
- .pixel_type = FF_PIXEL_PACKED,
- .depth = 8,
- .x_chroma_shift = 0, .y_chroma_shift = 0,
- },
- [PIX_FMT_RGB48BE] = {
- .name = "rgb48be",
- .nb_channels = 3,
- .color_type = FF_COLOR_RGB,
- .pixel_type = FF_PIXEL_PACKED,
- .depth = 16,
- .x_chroma_shift = 0, .y_chroma_shift = 0,
- },
- [PIX_FMT_RGB48LE] = {
- .name = "rgb48le",
- .nb_channels = 3,
- .color_type = FF_COLOR_RGB,
- .pixel_type = FF_PIXEL_PACKED,
- .depth = 16,
- .x_chroma_shift = 0, .y_chroma_shift = 0,
- },
- [PIX_FMT_RGB565BE] = {
- .name = "rgb565be",
- .nb_channels = 3,
- .color_type = FF_COLOR_RGB,
- .pixel_type = FF_PIXEL_PACKED,
- .depth = 5,
- .x_chroma_shift = 0, .y_chroma_shift = 0,
- },
- [PIX_FMT_RGB565LE] = {
- .name = "rgb565le",
- .nb_channels = 3,
- .color_type = FF_COLOR_RGB,
- .pixel_type = FF_PIXEL_PACKED,
- .depth = 5,
- .x_chroma_shift = 0, .y_chroma_shift = 0,
- },
- [PIX_FMT_RGB555BE] = {
- .name = "rgb555be",
- .nb_channels = 3,
- .color_type = FF_COLOR_RGB,
- .pixel_type = FF_PIXEL_PACKED,
- .depth = 5,
- .x_chroma_shift = 0, .y_chroma_shift = 0,
- },
- [PIX_FMT_RGB555LE] = {
- .name = "rgb555le",
- .nb_channels = 3,
- .color_type = FF_COLOR_RGB,
- .pixel_type = FF_PIXEL_PACKED,
- .depth = 5,
- .x_chroma_shift = 0, .y_chroma_shift = 0,
- },
-
- /* gray / mono formats */
- [PIX_FMT_GRAY16BE] = {
- .name = "gray16be",
- .nb_channels = 1,
- .color_type = FF_COLOR_GRAY,
- .pixel_type = FF_PIXEL_PLANAR,
- .depth = 16,
- },
- [PIX_FMT_GRAY16LE] = {
- .name = "gray16le",
- .nb_channels = 1,
- .color_type = FF_COLOR_GRAY,
- .pixel_type = FF_PIXEL_PLANAR,
- .depth = 16,
- },
- [PIX_FMT_GRAY8] = {
- .name = "gray",
- .nb_channels = 1,
- .color_type = FF_COLOR_GRAY,
- .pixel_type = FF_PIXEL_PLANAR,
- .depth = 8,
- },
- [PIX_FMT_MONOWHITE] = {
- .name = "monow",
- .nb_channels = 1,
- .color_type = FF_COLOR_GRAY,
- .pixel_type = FF_PIXEL_PLANAR,
- .depth = 1,
- },
- [PIX_FMT_MONOBLACK] = {
- .name = "monob",
- .nb_channels = 1,
- .color_type = FF_COLOR_GRAY,
- .pixel_type = FF_PIXEL_PLANAR,
- .depth = 1,
- },
-
- /* paletted formats */
- [PIX_FMT_PAL8] = {
- .name = "pal8",
- .nb_channels = 4, .is_alpha = 1,
- .color_type = FF_COLOR_RGB,
- .pixel_type = FF_PIXEL_PALETTE,
- .depth = 8,
- },
- [PIX_FMT_XVMC_MPEG2_MC] = {
- .name = "xvmcmc",
- .is_hwaccel = 1,
- },
- [PIX_FMT_XVMC_MPEG2_IDCT] = {
- .name = "xvmcidct",
- .is_hwaccel = 1,
- },
- [PIX_FMT_VDPAU_MPEG1] = {
- .name = "vdpau_mpeg1",
- .is_hwaccel = 1,
- .x_chroma_shift = 1, .y_chroma_shift = 1,
- },
- [PIX_FMT_VDPAU_MPEG2] = {
- .name = "vdpau_mpeg2",
- .is_hwaccel = 1,
- .x_chroma_shift = 1, .y_chroma_shift = 1,
- },
- [PIX_FMT_VDPAU_H264] = {
- .name = "vdpau_h264",
- .is_hwaccel = 1,
- .x_chroma_shift = 1, .y_chroma_shift = 1,
- },
- [PIX_FMT_VDPAU_WMV3] = {
- .name = "vdpau_wmv3",
- .is_hwaccel = 1,
- .x_chroma_shift = 1, .y_chroma_shift = 1,
- },
- [PIX_FMT_VDPAU_VC1] = {
- .name = "vdpau_vc1",
- .is_hwaccel = 1,
- .x_chroma_shift = 1, .y_chroma_shift = 1,
- },
- [PIX_FMT_UYYVYY411] = {
- .name = "uyyvyy411",
- .nb_channels = 1,
- .color_type = FF_COLOR_YUV,
- .pixel_type = FF_PIXEL_PACKED,
- .depth = 8,
- .x_chroma_shift = 2, .y_chroma_shift = 0,
- },
- [PIX_FMT_ABGR] = {
- .name = "abgr",
- .nb_channels = 4, .is_alpha = 1,
- .color_type = FF_COLOR_RGB,
- .pixel_type = FF_PIXEL_PACKED,
- .depth = 8,
- .x_chroma_shift = 0, .y_chroma_shift = 0,
- },
- [PIX_FMT_BGR565BE] = {
- .name = "bgr565be",
- .nb_channels = 3,
- .color_type = FF_COLOR_RGB,
- .pixel_type = FF_PIXEL_PACKED,
- .depth = 5,
- .x_chroma_shift = 0, .y_chroma_shift = 0,
- },
- [PIX_FMT_BGR565LE] = {
- .name = "bgr565le",
- .nb_channels = 3,
- .color_type = FF_COLOR_RGB,
- .pixel_type = FF_PIXEL_PACKED,
- .depth = 5,
- .x_chroma_shift = 0, .y_chroma_shift = 0,
- },
- [PIX_FMT_BGR555BE] = {
- .name = "bgr555be",
- .nb_channels = 3,
- .color_type = FF_COLOR_RGB,
- .pixel_type = FF_PIXEL_PACKED,
- .depth = 5,
- .x_chroma_shift = 0, .y_chroma_shift = 0,
- },
- [PIX_FMT_BGR555LE] = {
- .name = "bgr555le",
- .nb_channels = 3,
- .color_type = FF_COLOR_RGB,
- .pixel_type = FF_PIXEL_PACKED,
- .depth = 5,
- .x_chroma_shift = 0, .y_chroma_shift = 0,
- },
- [PIX_FMT_RGB8] = {
- .name = "rgb8",
- .nb_channels = 1,
- .color_type = FF_COLOR_RGB,
- .pixel_type = FF_PIXEL_PACKED,
- .depth = 8,
- .x_chroma_shift = 0, .y_chroma_shift = 0,
- },
- [PIX_FMT_RGB4] = {
- .name = "rgb4",
- .nb_channels = 1,
- .color_type = FF_COLOR_RGB,
- .pixel_type = FF_PIXEL_PACKED,
- .depth = 4,
- .x_chroma_shift = 0, .y_chroma_shift = 0,
- },
- [PIX_FMT_RGB4_BYTE] = {
- .name = "rgb4_byte",
- .nb_channels = 1,
- .color_type = FF_COLOR_RGB,
- .pixel_type = FF_PIXEL_PACKED,
- .depth = 8,
- .x_chroma_shift = 0, .y_chroma_shift = 0,
- },
- [PIX_FMT_BGR8] = {
- .name = "bgr8",
- .nb_channels = 1,
- .color_type = FF_COLOR_RGB,
- .pixel_type = FF_PIXEL_PACKED,
- .depth = 8,
- .x_chroma_shift = 0, .y_chroma_shift = 0,
- },
- [PIX_FMT_BGR4] = {
- .name = "bgr4",
- .nb_channels = 1,
- .color_type = FF_COLOR_RGB,
- .pixel_type = FF_PIXEL_PACKED,
- .depth = 4,
- .x_chroma_shift = 0, .y_chroma_shift = 0,
- },
- [PIX_FMT_BGR4_BYTE] = {
- .name = "bgr4_byte",
- .nb_channels = 1,
- .color_type = FF_COLOR_RGB,
- .pixel_type = FF_PIXEL_PACKED,
- .depth = 8,
- .x_chroma_shift = 0, .y_chroma_shift = 0,
- },
- [PIX_FMT_NV12] = {
- .name = "nv12",
- .nb_channels = 2,
- .color_type = FF_COLOR_YUV,
- .pixel_type = FF_PIXEL_PLANAR,
- .depth = 8,
- .x_chroma_shift = 1, .y_chroma_shift = 1,
- },
- [PIX_FMT_NV21] = {
- .name = "nv12",
- .nb_channels = 2,
- .color_type = FF_COLOR_YUV,
- .pixel_type = FF_PIXEL_PLANAR,
- .depth = 8,
- .x_chroma_shift = 1, .y_chroma_shift = 1,
- },
-
- [PIX_FMT_BGRA] = {
- .name = "bgra",
- .nb_channels = 4, .is_alpha = 1,
- .color_type = FF_COLOR_RGB,
- .pixel_type = FF_PIXEL_PACKED,
- .depth = 8,
- .x_chroma_shift = 0, .y_chroma_shift = 0,
- },
- [PIX_FMT_RGBA] = {
- .name = "rgba",
- .nb_channels = 4, .is_alpha = 1,
- .color_type = FF_COLOR_RGB,
- .pixel_type = FF_PIXEL_PACKED,
- .depth = 8,
- .x_chroma_shift = 0, .y_chroma_shift = 0,
- },
-
- /* VA API formats */
- [PIX_FMT_VAAPI_MOCO] = {
- .name = "vaapi_moco",
- .is_hwaccel = 1,
- .x_chroma_shift = 1, .y_chroma_shift = 1,
- },
- [PIX_FMT_VAAPI_IDCT] = {
- .name = "vaapi_idct",
- .is_hwaccel = 1,
- .x_chroma_shift = 1, .y_chroma_shift = 1,
- },
- [PIX_FMT_VAAPI_VLD] = {
- .name = "vaapi_vld",
- .is_hwaccel = 1,
- .x_chroma_shift = 1, .y_chroma_shift = 1,
- },
-};
-
-void avcodec_get_chroma_sub_sample(enum PixelFormat pix_fmt, int *h_shift, int *v_shift)
-{
- *h_shift = pix_fmt_info[pix_fmt].x_chroma_shift;
- *v_shift = pix_fmt_info[pix_fmt].y_chroma_shift;
-}
-
-const char *avcodec_get_pix_fmt_name(enum PixelFormat pix_fmt)
-{
- if (pix_fmt < 0 || pix_fmt >= PIX_FMT_NB)
- return NULL;
- else
- return pix_fmt_info[pix_fmt].name;
-}
-
-static enum PixelFormat avcodec_get_pix_fmt_internal(const char *name)
-{
- int i;
-
- for (i=0; i < PIX_FMT_NB; i++)
- if (pix_fmt_info[i].name && !strcmp(pix_fmt_info[i].name, name))
- return i;
- return PIX_FMT_NONE;
-}
-
-#if HAVE_BIGENDIAN
-# define X_NE(be, le) be
-#else
-# define X_NE(be, le) le
-#endif
-
-enum PixelFormat avcodec_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 = avcodec_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 = avcodec_get_pix_fmt_internal(name2);
- }
- return pix_fmt;
-}
-
-void avcodec_pix_fmt_string (char *buf, int buf_size, enum PixelFormat pix_fmt)
-{
- /* print header */
- if (pix_fmt < 0)
- snprintf (buf, buf_size,
- "name " " nb_channels" " depth" " is_alpha"
- );
- else{
- PixFmtInfo info= pix_fmt_info[pix_fmt];
-
- char is_alpha_char= info.is_alpha ? 'y' : 'n';
-
- snprintf (buf, buf_size,
- "%-11s" " %1d " " %2d " " %c ",
- info.name,
- info.nb_channels,
- info.depth,
- is_alpha_char
- );
- }
-}
-
-int ff_is_hwaccel_pix_fmt(enum PixelFormat pix_fmt)
-{
- return pix_fmt_info[pix_fmt].is_hwaccel;
-}
-
-int ff_set_systematic_pal(uint32_t pal[256], enum PixelFormat pix_fmt){
- int i;
-
- for(i=0; i<256; i++){
- int r,g,b;
-
- switch(pix_fmt) {
- case PIX_FMT_RGB8:
- r= (i>>5 )*36;
- g= ((i>>2)&7)*36;
- b= (i&3 )*85;
- break;
- case PIX_FMT_BGR8:
- b= (i>>6 )*85;
- g= ((i>>3)&7)*36;
- r= (i&7 )*36;
- break;
- case PIX_FMT_RGB4_BYTE:
- r= (i>>3 )*255;
- g= ((i>>1)&3)*85;
- b= (i&1 )*255;
- break;
- case PIX_FMT_BGR4_BYTE:
- b= (i>>3 )*255;
- g= ((i>>1)&3)*85;
- r= (i&1 )*255;
- break;
- case PIX_FMT_GRAY8:
- r=b=g= i;
- break;
- default:
- return -1;
- }
- pal[i] = b + (g<<8) + (r<<16);
- }
-
- return 0;
-}
-
-int ff_fill_linesize(AVPicture *picture, enum PixelFormat pix_fmt, int width)
+void avcodec_get_chroma_sub_sample(enum AVPixelFormat pix_fmt, int *h_shift, int *v_shift)
{
- int w2;
- const PixFmtInfo *pinfo;
-
- memset(picture->linesize, 0, sizeof(picture->linesize));
-
- pinfo = &pix_fmt_info[pix_fmt];
- switch(pix_fmt) {
- case PIX_FMT_YUV420P:
- case PIX_FMT_YUV422P:
- case PIX_FMT_YUV444P:
- case PIX_FMT_YUV410P:
- case PIX_FMT_YUV411P:
- case PIX_FMT_YUV440P:
- case PIX_FMT_YUVJ420P:
- case PIX_FMT_YUVJ422P:
- case PIX_FMT_YUVJ444P:
- case PIX_FMT_YUVJ440P:
- w2 = (width + (1 << pinfo->x_chroma_shift) - 1) >> pinfo->x_chroma_shift;
- picture->linesize[0] = width;
- picture->linesize[1] = w2;
- picture->linesize[2] = w2;
- break;
- case PIX_FMT_YUV420P16LE:
- case PIX_FMT_YUV422P16LE:
- case PIX_FMT_YUV444P16LE:
- case PIX_FMT_YUV420P16BE:
- case PIX_FMT_YUV422P16BE:
- case PIX_FMT_YUV444P16BE:
- w2 = (width + (1 << pinfo->x_chroma_shift) - 1) >> pinfo->x_chroma_shift;
- picture->linesize[0] = 2*width;
- picture->linesize[1] = 2*w2;
- picture->linesize[2] = 2*w2;
- break;
- case PIX_FMT_YUVA420P:
- w2 = (width + (1 << pinfo->x_chroma_shift) - 1) >> pinfo->x_chroma_shift;
- picture->linesize[0] = width;
- picture->linesize[1] = w2;
- picture->linesize[2] = w2;
- picture->linesize[3] = width;
- break;
- case PIX_FMT_NV12:
- case PIX_FMT_NV21:
- w2 = (width + (1 << pinfo->x_chroma_shift) - 1) >> pinfo->x_chroma_shift;
- picture->linesize[0] = width;
- picture->linesize[1] = w2;
- break;
- case PIX_FMT_RGB24:
- case PIX_FMT_BGR24:
- picture->linesize[0] = width * 3;
- break;
- case PIX_FMT_ARGB:
- case PIX_FMT_ABGR:
- case PIX_FMT_RGBA:
- case PIX_FMT_BGRA:
- picture->linesize[0] = width * 4;
- break;
- case PIX_FMT_RGB48BE:
- case PIX_FMT_RGB48LE:
- picture->linesize[0] = width * 6;
- break;
- case PIX_FMT_GRAY16BE:
- case PIX_FMT_GRAY16LE:
- case PIX_FMT_BGR555BE:
- case PIX_FMT_BGR555LE:
- case PIX_FMT_BGR565BE:
- case PIX_FMT_BGR565LE:
- case PIX_FMT_RGB555BE:
- case PIX_FMT_RGB555LE:
- case PIX_FMT_RGB565BE:
- case PIX_FMT_RGB565LE:
- case PIX_FMT_YUYV422:
- picture->linesize[0] = width * 2;
- break;
- case PIX_FMT_UYVY422:
- picture->linesize[0] = width * 2;
- break;
- case PIX_FMT_UYYVYY411:
- picture->linesize[0] = width + width/2;
- break;
- case PIX_FMT_RGB4:
- case PIX_FMT_BGR4:
- picture->linesize[0] = width / 2;
- break;
- case PIX_FMT_MONOWHITE:
- case PIX_FMT_MONOBLACK:
- picture->linesize[0] = (width + 7) >> 3;
- break;
- case PIX_FMT_PAL8:
- case PIX_FMT_RGB8:
- case PIX_FMT_BGR8:
- case PIX_FMT_RGB4_BYTE:
- case PIX_FMT_BGR4_BYTE:
- case PIX_FMT_GRAY8:
- picture->linesize[0] = width;
- break;
- default:
- return -1;
- }
- return 0;
+ const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(pix_fmt);
+ *h_shift = desc->log2_chroma_w;
+ *v_shift = desc->log2_chroma_h;
}
-int ff_fill_pointer(AVPicture *picture, uint8_t *ptr, enum PixelFormat pix_fmt,
- int height)
+static int is_gray(const AVPixFmtDescriptor *desc)
{
- int size, h2, size2;
- const PixFmtInfo *pinfo;
-
- pinfo = &pix_fmt_info[pix_fmt];
- size = picture->linesize[0] * height;
- switch(pix_fmt) {
- case PIX_FMT_YUV420P:
- case PIX_FMT_YUV422P:
- case PIX_FMT_YUV444P:
- case PIX_FMT_YUV410P:
- case PIX_FMT_YUV411P:
- case PIX_FMT_YUV440P:
- case PIX_FMT_YUVJ420P:
- case PIX_FMT_YUVJ422P:
- case PIX_FMT_YUVJ444P:
- case PIX_FMT_YUVJ440P:
- case PIX_FMT_YUV420P16LE:
- case PIX_FMT_YUV422P16LE:
- case PIX_FMT_YUV444P16LE:
- case PIX_FMT_YUV420P16BE:
- case PIX_FMT_YUV422P16BE:
- case PIX_FMT_YUV444P16BE:
- h2 = (height + (1 << pinfo->y_chroma_shift) - 1) >> pinfo->y_chroma_shift;
- size2 = picture->linesize[1] * h2;
- picture->data[0] = ptr;
- picture->data[1] = picture->data[0] + size;
- picture->data[2] = picture->data[1] + size2;
- picture->data[3] = NULL;
- return size + 2 * size2;
- case PIX_FMT_YUVA420P:
- h2 = (height + (1 << pinfo->y_chroma_shift) - 1) >> pinfo->y_chroma_shift;
- size2 = picture->linesize[1] * h2;
- picture->data[0] = ptr;
- picture->data[1] = picture->data[0] + size;
- picture->data[2] = picture->data[1] + size2;
- picture->data[3] = picture->data[1] + size2 + size2;
- return 2 * size + 2 * size2;
- case PIX_FMT_NV12:
- case PIX_FMT_NV21:
- h2 = (height + (1 << pinfo->y_chroma_shift) - 1) >> pinfo->y_chroma_shift;
- size2 = picture->linesize[1] * h2 * 2;
- picture->data[0] = ptr;
- picture->data[1] = picture->data[0] + size;
- picture->data[2] = NULL;
- picture->data[3] = NULL;
- return size + 2 * size2;
- case PIX_FMT_RGB24:
- case PIX_FMT_BGR24:
- case PIX_FMT_ARGB:
- case PIX_FMT_ABGR:
- case PIX_FMT_RGBA:
- case PIX_FMT_BGRA:
- case PIX_FMT_RGB48BE:
- case PIX_FMT_RGB48LE:
- case PIX_FMT_GRAY16BE:
- case PIX_FMT_GRAY16LE:
- case PIX_FMT_BGR555BE:
- case PIX_FMT_BGR555LE:
- case PIX_FMT_BGR565BE:
- case PIX_FMT_BGR565LE:
- case PIX_FMT_RGB555BE:
- case PIX_FMT_RGB555LE:
- case PIX_FMT_RGB565BE:
- case PIX_FMT_RGB565LE:
- case PIX_FMT_YUYV422:
- case PIX_FMT_UYVY422:
- case PIX_FMT_UYYVYY411:
- case PIX_FMT_RGB4:
- case PIX_FMT_BGR4:
- case PIX_FMT_MONOWHITE:
- case PIX_FMT_MONOBLACK:
- picture->data[0] = ptr;
- picture->data[1] = NULL;
- picture->data[2] = NULL;
- picture->data[3] = NULL;
- return size;
- case PIX_FMT_PAL8:
- case PIX_FMT_RGB8:
- case PIX_FMT_BGR8:
- case PIX_FMT_RGB4_BYTE:
- case PIX_FMT_BGR4_BYTE:
- case PIX_FMT_GRAY8:
- size2 = (size + 3) & ~3;
- picture->data[0] = ptr;
- picture->data[1] = ptr + size2; /* palette is stored here as 256 32 bit words */
- picture->data[2] = NULL;
- picture->data[3] = NULL;
- return size2 + 256 * 4;
- default:
- picture->data[0] = NULL;
- picture->data[1] = NULL;
- picture->data[2] = NULL;
- picture->data[3] = NULL;
- return -1;
- }
+ return desc->nb_components - (desc->flags & AV_PIX_FMT_FLAG_ALPHA) == 1;
}
-int avpicture_fill(AVPicture *picture, uint8_t *ptr,
- enum PixelFormat pix_fmt, int width, int height)
-{
-
- if(avcodec_check_dimensions(NULL, width, height))
- return -1;
-
- if (ff_fill_linesize(picture, pix_fmt, width))
- return -1;
-
- return ff_fill_pointer(picture, ptr, pix_fmt, height);
-}
-
-int avpicture_layout(const AVPicture* src, enum PixelFormat pix_fmt, int width, int height,
- unsigned char *dest, int dest_size)
+int avcodec_get_pix_fmt_loss(enum AVPixelFormat dst_pix_fmt,
+ enum AVPixelFormat src_pix_fmt,
+ int has_alpha)
{
- const PixFmtInfo* pf = &pix_fmt_info[pix_fmt];
- int i, j, w, ow, h, oh, data_planes;
- const unsigned char* s;
- int size = avpicture_get_size(pix_fmt, width, height);
-
- if (size > dest_size || size < 0)
- return -1;
-
- if (pf->pixel_type == FF_PIXEL_PACKED || pf->pixel_type == FF_PIXEL_PALETTE) {
- if (pix_fmt == PIX_FMT_YUYV422 ||
- pix_fmt == PIX_FMT_UYVY422 ||
- pix_fmt == PIX_FMT_BGR565BE ||
- pix_fmt == PIX_FMT_BGR565LE ||
- pix_fmt == PIX_FMT_BGR555BE ||
- pix_fmt == PIX_FMT_BGR555LE ||
- pix_fmt == PIX_FMT_RGB565BE ||
- pix_fmt == PIX_FMT_RGB565LE ||
- pix_fmt == PIX_FMT_RGB555BE ||
- pix_fmt == PIX_FMT_RGB555LE)
- w = width * 2;
- else if (pix_fmt == PIX_FMT_UYYVYY411)
- w = width + width/2;
- else if (pix_fmt == PIX_FMT_PAL8)
- w = width;
- else
- w = width * (pf->depth * pf->nb_channels / 8);
+ const AVPixFmtDescriptor *src_desc = av_pix_fmt_desc_get(src_pix_fmt);
+ const AVPixFmtDescriptor *dst_desc = av_pix_fmt_desc_get(dst_pix_fmt);
+ int loss, i, nb_components = FFMIN(src_desc->nb_components,
+ dst_desc->nb_components);
- data_planes = 1;
- h = height;
- } else {
- data_planes = pf->nb_channels;
- w = (width*pf->depth + 7)/8;
- h = height;
- }
+ /* compute loss */
+ loss = 0;
- ow = w;
- oh = h;
+ if (dst_pix_fmt == src_pix_fmt)
+ return 0;
- for (i=0; i<data_planes; i++) {
- if (i == 1) {
- w = width >> pf->x_chroma_shift;
- h = height >> pf->y_chroma_shift;
- } else if (i == 3) {
- w = ow;
- h = oh;
- }
- s = src->data[i];
- for(j=0; j<h; j++) {
- memcpy(dest, s, w);
- dest += w;
- s += src->linesize[i];
- }
- }
+ for (i = 0; i < nb_components; i++)
+ if (src_desc->comp[i].depth > dst_desc->comp[i].depth)
+ loss |= FF_LOSS_DEPTH;
- if (pf->pixel_type == FF_PIXEL_PALETTE)
- memcpy((unsigned char *)(((size_t)dest + 3) & ~3), src->data[1], 256 * 4);
+ if (dst_desc->log2_chroma_w > src_desc->log2_chroma_w ||
+ dst_desc->log2_chroma_h > src_desc->log2_chroma_h)
+ loss |= FF_LOSS_RESOLUTION;
- return size;
-}
+ if ((src_desc->flags & AV_PIX_FMT_FLAG_RGB) != (dst_desc->flags & AV_PIX_FMT_FLAG_RGB))
+ loss |= FF_LOSS_COLORSPACE;
-int avpicture_get_size(enum PixelFormat pix_fmt, int width, int height)
-{
- AVPicture dummy_pict;
- if(avcodec_check_dimensions(NULL, width, height))
- return -1;
- switch (pix_fmt) {
- case PIX_FMT_RGB8:
- case PIX_FMT_BGR8:
- case PIX_FMT_RGB4_BYTE:
- case PIX_FMT_BGR4_BYTE:
- case PIX_FMT_GRAY8:
- // do not include palette for these pseudo-paletted formats
- return width * height;
- }
- return avpicture_fill(&dummy_pict, NULL, pix_fmt, width, height);
-}
+ if (has_alpha && !(dst_desc->flags & AV_PIX_FMT_FLAG_ALPHA) &&
+ (src_desc->flags & AV_PIX_FMT_FLAG_ALPHA))
+ loss |= FF_LOSS_ALPHA;
-int avcodec_get_pix_fmt_loss(enum PixelFormat dst_pix_fmt, enum PixelFormat src_pix_fmt,
- int has_alpha)
-{
- const PixFmtInfo *pf, *ps;
- int loss;
+ if (dst_pix_fmt == AV_PIX_FMT_PAL8 && !is_gray(src_desc))
+ return loss | FF_LOSS_COLORQUANT;
- ps = &pix_fmt_info[src_pix_fmt];
+ if (src_desc->nb_components > dst_desc->nb_components)
+ if (is_gray(dst_desc))
+ loss |= FF_LOSS_CHROMA;
- /* compute loss */
- loss = 0;
- pf = &pix_fmt_info[dst_pix_fmt];
- if (pf->depth < ps->depth ||
- ((dst_pix_fmt == PIX_FMT_RGB555BE || dst_pix_fmt == PIX_FMT_RGB555LE) &&
- (src_pix_fmt == PIX_FMT_RGB565BE || src_pix_fmt == PIX_FMT_RGB565LE)))
- loss |= FF_LOSS_DEPTH;
- if (pf->x_chroma_shift > ps->x_chroma_shift ||
- pf->y_chroma_shift > ps->y_chroma_shift)
- loss |= FF_LOSS_RESOLUTION;
- switch(pf->color_type) {
- case FF_COLOR_RGB:
- if (ps->color_type != FF_COLOR_RGB &&
- ps->color_type != FF_COLOR_GRAY)
- loss |= FF_LOSS_COLORSPACE;
- break;
- case FF_COLOR_GRAY:
- if (ps->color_type != FF_COLOR_GRAY)
- loss |= FF_LOSS_COLORSPACE;
- break;
- case FF_COLOR_YUV:
- if (ps->color_type != FF_COLOR_YUV)
- loss |= FF_LOSS_COLORSPACE;
- break;
- case FF_COLOR_YUV_JPEG:
- if (ps->color_type != FF_COLOR_YUV_JPEG &&
- ps->color_type != FF_COLOR_YUV &&
- ps->color_type != FF_COLOR_GRAY)
- loss |= FF_LOSS_COLORSPACE;
- break;
- default:
- /* fail safe test */
- if (ps->color_type != pf->color_type)
- loss |= FF_LOSS_COLORSPACE;
- break;
- }
- if (pf->color_type == FF_COLOR_GRAY &&
- ps->color_type != FF_COLOR_GRAY)
- loss |= FF_LOSS_CHROMA;
- if (!pf->is_alpha && (ps->is_alpha && has_alpha))
- loss |= FF_LOSS_ALPHA;
- if (pf->pixel_type == FF_PIXEL_PALETTE &&
- (ps->pixel_type != FF_PIXEL_PALETTE && ps->color_type != FF_COLOR_GRAY))
- loss |= FF_LOSS_COLORQUANT;
return loss;
}
-static int avg_bits_per_pixel(enum PixelFormat pix_fmt)
-{
- int bits;
- const PixFmtInfo *pf;
-
- pf = &pix_fmt_info[pix_fmt];
- switch(pf->pixel_type) {
- case FF_PIXEL_PACKED:
- switch(pix_fmt) {
- case PIX_FMT_YUYV422:
- case PIX_FMT_UYVY422:
- case PIX_FMT_RGB565BE:
- case PIX_FMT_RGB565LE:
- case PIX_FMT_RGB555BE:
- case PIX_FMT_RGB555LE:
- case PIX_FMT_BGR565BE:
- case PIX_FMT_BGR565LE:
- case PIX_FMT_BGR555BE:
- case PIX_FMT_BGR555LE:
- bits = 16;
- break;
- case PIX_FMT_UYYVYY411:
- bits = 12;
- break;
- default:
- bits = pf->depth * pf->nb_channels;
- break;
- }
- break;
- case FF_PIXEL_PLANAR:
- if (pf->x_chroma_shift == 0 && pf->y_chroma_shift == 0) {
- bits = pf->depth * pf->nb_channels;
- } else {
- bits = pf->depth + ((2 * pf->depth) >>
- (pf->x_chroma_shift + pf->y_chroma_shift));
- }
- break;
- case FF_PIXEL_PALETTE:
- bits = 8;
- break;
- default:
- bits = -1;
- break;
- }
- return bits;
-}
-
-static enum PixelFormat avcodec_find_best_pix_fmt1(int64_t pix_fmt_mask,
- enum PixelFormat src_pix_fmt,
+static enum AVPixelFormat avcodec_find_best_pix_fmt1(enum AVPixelFormat *pix_fmt_list,
+ enum AVPixelFormat src_pix_fmt,
int has_alpha,
int loss_mask)
{
int dist, i, loss, min_dist;
- enum PixelFormat dst_pix_fmt;
+ enum AVPixelFormat dst_pix_fmt;
/* find exact color match with smallest size */
- dst_pix_fmt = -1;
+ dst_pix_fmt = AV_PIX_FMT_NONE;
min_dist = 0x7fffffff;
- for(i = 0;i < PIX_FMT_NB; i++) {
- if (pix_fmt_mask & (1ULL << i)) {
- loss = avcodec_get_pix_fmt_loss(i, src_pix_fmt, has_alpha) & loss_mask;
- if (loss == 0) {
- dist = avg_bits_per_pixel(i);
- if (dist < min_dist) {
- min_dist = dist;
- dst_pix_fmt = i;
- }
+ i = 0;
+ while (pix_fmt_list[i] != AV_PIX_FMT_NONE) {
+ enum AVPixelFormat pix_fmt = pix_fmt_list[i];
+
+ if (i > AV_PIX_FMT_NB) {
+ av_log(NULL, AV_LOG_ERROR, "Pixel format list longer than expected, "
+ "it is either not properly terminated or contains duplicates\n");
+ return AV_PIX_FMT_NONE;
+ }
+
+ loss = avcodec_get_pix_fmt_loss(pix_fmt, src_pix_fmt, has_alpha) & loss_mask;
+ if (loss == 0) {
+ dist = av_get_bits_per_pixel(av_pix_fmt_desc_get(pix_fmt));
+ if (dist < min_dist) {
+ min_dist = dist;
+ dst_pix_fmt = pix_fmt;
}
}
+ i++;
}
return dst_pix_fmt;
}
-enum PixelFormat avcodec_find_best_pix_fmt(int64_t pix_fmt_mask, enum PixelFormat src_pix_fmt,
- int has_alpha, int *loss_ptr)
+enum AVPixelFormat avcodec_find_best_pix_fmt2(enum AVPixelFormat *pix_fmt_list,
+ enum AVPixelFormat src_pix_fmt,
+ int has_alpha, int *loss_ptr)
{
- enum PixelFormat dst_pix_fmt;
+ enum AVPixelFormat dst_pix_fmt;
int loss_mask, i;
static const int loss_mask_order[] = {
~0, /* no loss first */
i = 0;
for(;;) {
loss_mask = loss_mask_order[i++];
- dst_pix_fmt = avcodec_find_best_pix_fmt1(pix_fmt_mask, src_pix_fmt,
+ dst_pix_fmt = avcodec_find_best_pix_fmt1(pix_fmt_list, src_pix_fmt,
has_alpha, loss_mask);
if (dst_pix_fmt >= 0)
goto found;
if (loss_mask == 0)
break;
}
- return -1;
+ return AV_PIX_FMT_NONE;
found:
if (loss_ptr)
*loss_ptr = avcodec_get_pix_fmt_loss(dst_pix_fmt, src_pix_fmt, has_alpha);
return dst_pix_fmt;
}
-void ff_img_copy_plane(uint8_t *dst, int dst_wrap,
- const uint8_t *src, int src_wrap,
- int width, int height)
-{
- if((!dst) || (!src))
- return;
- for(;height > 0; height--) {
- memcpy(dst, src, width);
- dst += dst_wrap;
- src += src_wrap;
- }
-}
-
-int ff_get_plane_bytewidth(enum PixelFormat pix_fmt, int width, int plane)
-{
- int bits;
- const PixFmtInfo *pf = &pix_fmt_info[pix_fmt];
-
- pf = &pix_fmt_info[pix_fmt];
- switch(pf->pixel_type) {
- case FF_PIXEL_PACKED:
- switch(pix_fmt) {
- case PIX_FMT_YUYV422:
- case PIX_FMT_UYVY422:
- case PIX_FMT_RGB565BE:
- case PIX_FMT_RGB565LE:
- case PIX_FMT_RGB555BE:
- case PIX_FMT_RGB555LE:
- case PIX_FMT_BGR565BE:
- case PIX_FMT_BGR565LE:
- case PIX_FMT_BGR555BE:
- case PIX_FMT_BGR555LE:
- bits = 16;
- break;
- case PIX_FMT_UYYVYY411:
- bits = 12;
- break;
- default:
- bits = pf->depth * pf->nb_channels;
- break;
- }
- return (width * bits + 7) >> 3;
- break;
- case FF_PIXEL_PLANAR:
- if (plane == 1 || plane == 2)
- width= -((-width)>>pf->x_chroma_shift);
-
- return (width * pf->depth + 7) >> 3;
- break;
- case FF_PIXEL_PALETTE:
- if (plane == 0)
- return width;
- break;
- }
-
- return -1;
-}
-
-void av_picture_copy(AVPicture *dst, const AVPicture *src,
- enum PixelFormat pix_fmt, int width, int height)
-{
- int i;
- const PixFmtInfo *pf = &pix_fmt_info[pix_fmt];
-
- switch(pf->pixel_type) {
- case FF_PIXEL_PACKED:
- case FF_PIXEL_PLANAR:
- for(i = 0; i < pf->nb_channels; i++) {
- int h;
- int bwidth = ff_get_plane_bytewidth(pix_fmt, width, i);
- h = height;
- if (i == 1 || i == 2) {
- h= -((-height)>>pf->y_chroma_shift);
- }
- ff_img_copy_plane(dst->data[i], dst->linesize[i],
- src->data[i], src->linesize[i],
- bwidth, h);
- }
- break;
- case FF_PIXEL_PALETTE:
- ff_img_copy_plane(dst->data[0], dst->linesize[0],
- src->data[0], src->linesize[0],
- width, height);
- /* copy the palette */
- ff_img_copy_plane(dst->data[1], dst->linesize[1],
- src->data[1], src->linesize[1],
- 4, 256);
- break;
- }
-}
-
/* 2x2 -> 1x1 */
void ff_shrink22(uint8_t *dst, int dst_wrap,
const uint8_t *src, int src_wrap,
}
}
-
-int avpicture_alloc(AVPicture *picture,
- enum PixelFormat pix_fmt, int width, int height)
-{
- int size;
- void *ptr;
-
- size = avpicture_fill(picture, NULL, pix_fmt, width, height);
- if(size<0)
- goto fail;
- ptr = av_malloc(size);
- if (!ptr)
- goto fail;
- avpicture_fill(picture, ptr, pix_fmt, width, height);
- if(picture->data[1] && !picture->data[2])
- ff_set_systematic_pal((uint32_t*)picture->data[1], pix_fmt);
-
- return 0;
- fail:
- memset(picture, 0, sizeof(AVPicture));
- return -1;
-}
-
-void avpicture_free(AVPicture *picture)
-{
- av_free(picture->data[0]);
-}
-
/* return true if yuv planar */
-static inline int is_yuv_planar(const PixFmtInfo *ps)
+static inline int is_yuv_planar(const AVPixFmtDescriptor *desc)
{
- return (ps->color_type == FF_COLOR_YUV ||
- ps->color_type == FF_COLOR_YUV_JPEG) &&
- ps->pixel_type == FF_PIXEL_PLANAR;
+ return (!(desc->flags & AV_PIX_FMT_FLAG_RGB) &&
+ (desc->flags & AV_PIX_FMT_FLAG_PLANAR));
}
int av_picture_crop(AVPicture *dst, const AVPicture *src,
- enum PixelFormat pix_fmt, int top_band, int left_band)
+ enum AVPixelFormat pix_fmt, int top_band, int left_band)
{
+ const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(pix_fmt);
int y_shift;
int x_shift;
- if (pix_fmt < 0 || pix_fmt >= PIX_FMT_NB || !is_yuv_planar(&pix_fmt_info[pix_fmt]))
+ if (pix_fmt < 0 || pix_fmt >= AV_PIX_FMT_NB || !is_yuv_planar(desc))
return -1;
- y_shift = pix_fmt_info[pix_fmt].y_chroma_shift;
- x_shift = pix_fmt_info[pix_fmt].x_chroma_shift;
+ y_shift = desc->log2_chroma_h;
+ x_shift = desc->log2_chroma_w;
dst->data[0] = src->data[0] + (top_band * src->linesize[0]) + left_band;
dst->data[1] = src->data[1] + ((top_band >> y_shift) * src->linesize[1]) + (left_band >> x_shift);
}
int av_picture_pad(AVPicture *dst, const AVPicture *src, int height, int width,
- enum PixelFormat pix_fmt, int padtop, int padbottom, int padleft, int padright,
+ enum AVPixelFormat pix_fmt, int padtop, int padbottom, int padleft, int padright,
int *color)
{
+ const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(pix_fmt);
uint8_t *optr;
int y_shift;
int x_shift;
int yheight;
int i, y;
- if (pix_fmt < 0 || pix_fmt >= PIX_FMT_NB ||
- !is_yuv_planar(&pix_fmt_info[pix_fmt])) return -1;
+ if (pix_fmt < 0 || pix_fmt >= AV_PIX_FMT_NB ||
+ !is_yuv_planar(desc)) return -1;
for (i = 0; i < 3; i++) {
- x_shift = i ? pix_fmt_info[pix_fmt].x_chroma_shift : 0;
- y_shift = i ? pix_fmt_info[pix_fmt].y_chroma_shift : 0;
+ x_shift = i ? desc->log2_chroma_w : 0;
+ y_shift = i ? desc->log2_chroma_h : 0;
if (padtop || padleft) {
memset(dst->data[i], color[i],
}
return 0;
}
-
-/* NOTE: we scan all the pixels to have an exact information */
-static int get_alpha_info_pal8(const AVPicture *src, int width, int height)
-{
- const unsigned char *p;
- int src_wrap, ret, x, y;
- unsigned int a;
- uint32_t *palette = (uint32_t *)src->data[1];
-
- p = src->data[0];
- src_wrap = src->linesize[0] - width;
- ret = 0;
- for(y=0;y<height;y++) {
- for(x=0;x<width;x++) {
- a = palette[p[0]] >> 24;
- if (a == 0x00) {
- ret |= FF_ALPHA_TRANSP;
- } else if (a != 0xff) {
- ret |= FF_ALPHA_SEMI_TRANSP;
- }
- p++;
- }
- p += src_wrap;
- }
- return ret;
-}
-
-int img_get_alpha_info(const AVPicture *src,
- enum PixelFormat pix_fmt, int width, int height)
-{
- const PixFmtInfo *pf = &pix_fmt_info[pix_fmt];
- int ret;
-
- /* no alpha can be represented in format */
- if (!pf->is_alpha)
- return 0;
- switch(pix_fmt) {
- case PIX_FMT_PAL8:
- ret = get_alpha_info_pal8(src, width, height);
- break;
- default:
- /* we do not know, so everything is indicated */
- ret = FF_ALPHA_TRANSP | FF_ALPHA_SEMI_TRANSP;
- break;
- }
- return ret;
-}
-
-#if HAVE_MMX
-#define DEINT_INPLACE_LINE_LUM \
- movd_m2r(lum_m4[0],mm0);\
- movd_m2r(lum_m3[0],mm1);\
- movd_m2r(lum_m2[0],mm2);\
- movd_m2r(lum_m1[0],mm3);\
- movd_m2r(lum[0],mm4);\
- punpcklbw_r2r(mm7,mm0);\
- movd_r2m(mm2,lum_m4[0]);\
- punpcklbw_r2r(mm7,mm1);\
- punpcklbw_r2r(mm7,mm2);\
- punpcklbw_r2r(mm7,mm3);\
- punpcklbw_r2r(mm7,mm4);\
- paddw_r2r(mm3,mm1);\
- psllw_i2r(1,mm2);\
- paddw_r2r(mm4,mm0);\
- psllw_i2r(2,mm1);\
- paddw_r2r(mm6,mm2);\
- paddw_r2r(mm2,mm1);\
- psubusw_r2r(mm0,mm1);\
- psrlw_i2r(3,mm1);\
- packuswb_r2r(mm7,mm1);\
- movd_r2m(mm1,lum_m2[0]);
-
-#define DEINT_LINE_LUM \
- movd_m2r(lum_m4[0],mm0);\
- movd_m2r(lum_m3[0],mm1);\
- movd_m2r(lum_m2[0],mm2);\
- movd_m2r(lum_m1[0],mm3);\
- movd_m2r(lum[0],mm4);\
- punpcklbw_r2r(mm7,mm0);\
- punpcklbw_r2r(mm7,mm1);\
- punpcklbw_r2r(mm7,mm2);\
- punpcklbw_r2r(mm7,mm3);\
- punpcklbw_r2r(mm7,mm4);\
- paddw_r2r(mm3,mm1);\
- psllw_i2r(1,mm2);\
- paddw_r2r(mm4,mm0);\
- psllw_i2r(2,mm1);\
- paddw_r2r(mm6,mm2);\
- paddw_r2r(mm2,mm1);\
- psubusw_r2r(mm0,mm1);\
- psrlw_i2r(3,mm1);\
- packuswb_r2r(mm7,mm1);\
- movd_r2m(mm1,dst[0]);
-#endif
-
-/* filter parameters: [-1 4 2 4 -1] // 8 */
-static void deinterlace_line(uint8_t *dst,
- const uint8_t *lum_m4, const uint8_t *lum_m3,
- const uint8_t *lum_m2, const uint8_t *lum_m1,
- const uint8_t *lum,
- int size)
-{
-#if !HAVE_MMX
- uint8_t *cm = ff_cropTbl + MAX_NEG_CROP;
- int sum;
-
- for(;size > 0;size--) {
- sum = -lum_m4[0];
- sum += lum_m3[0] << 2;
- sum += lum_m2[0] << 1;
- sum += lum_m1[0] << 2;
- sum += -lum[0];
- dst[0] = cm[(sum + 4) >> 3];
- lum_m4++;
- lum_m3++;
- lum_m2++;
- lum_m1++;
- lum++;
- dst++;
- }
-#else
-
- {
- pxor_r2r(mm7,mm7);
- movq_m2r(ff_pw_4,mm6);
- }
- for (;size > 3; size-=4) {
- DEINT_LINE_LUM
- lum_m4+=4;
- lum_m3+=4;
- lum_m2+=4;
- lum_m1+=4;
- lum+=4;
- dst+=4;
- }
-#endif
-}
-static void deinterlace_line_inplace(uint8_t *lum_m4, uint8_t *lum_m3, uint8_t *lum_m2, uint8_t *lum_m1, uint8_t *lum,
- int size)
-{
-#if !HAVE_MMX
- uint8_t *cm = ff_cropTbl + MAX_NEG_CROP;
- int sum;
-
- for(;size > 0;size--) {
- sum = -lum_m4[0];
- sum += lum_m3[0] << 2;
- sum += lum_m2[0] << 1;
- lum_m4[0]=lum_m2[0];
- sum += lum_m1[0] << 2;
- sum += -lum[0];
- lum_m2[0] = cm[(sum + 4) >> 3];
- lum_m4++;
- lum_m3++;
- lum_m2++;
- lum_m1++;
- lum++;
- }
-#else
-
- {
- pxor_r2r(mm7,mm7);
- movq_m2r(ff_pw_4,mm6);
- }
- for (;size > 3; size-=4) {
- DEINT_INPLACE_LINE_LUM
- lum_m4+=4;
- lum_m3+=4;
- lum_m2+=4;
- lum_m1+=4;
- lum+=4;
- }
-#endif
-}
-
-/* deinterlacing : 2 temporal taps, 3 spatial taps linear filter. The
- top field is copied as is, but the bottom field is deinterlaced
- against the top field. */
-static void deinterlace_bottom_field(uint8_t *dst, int dst_wrap,
- const uint8_t *src1, int src_wrap,
- int width, int height)
-{
- const uint8_t *src_m2, *src_m1, *src_0, *src_p1, *src_p2;
- int y;
-
- src_m2 = src1;
- src_m1 = src1;
- src_0=&src_m1[src_wrap];
- src_p1=&src_0[src_wrap];
- src_p2=&src_p1[src_wrap];
- for(y=0;y<(height-2);y+=2) {
- memcpy(dst,src_m1,width);
- dst += dst_wrap;
- deinterlace_line(dst,src_m2,src_m1,src_0,src_p1,src_p2,width);
- src_m2 = src_0;
- src_m1 = src_p1;
- src_0 = src_p2;
- src_p1 += 2*src_wrap;
- src_p2 += 2*src_wrap;
- dst += dst_wrap;
- }
- memcpy(dst,src_m1,width);
- dst += dst_wrap;
- /* do last line */
- deinterlace_line(dst,src_m2,src_m1,src_0,src_0,src_0,width);
-}
-
-static void deinterlace_bottom_field_inplace(uint8_t *src1, int src_wrap,
- int width, int height)
-{
- uint8_t *src_m1, *src_0, *src_p1, *src_p2;
- int y;
- uint8_t *buf;
- buf = (uint8_t*)av_malloc(width);
-
- src_m1 = src1;
- memcpy(buf,src_m1,width);
- src_0=&src_m1[src_wrap];
- src_p1=&src_0[src_wrap];
- src_p2=&src_p1[src_wrap];
- for(y=0;y<(height-2);y+=2) {
- deinterlace_line_inplace(buf,src_m1,src_0,src_p1,src_p2,width);
- src_m1 = src_p1;
- src_0 = src_p2;
- src_p1 += 2*src_wrap;
- src_p2 += 2*src_wrap;
- }
- /* do last line */
- deinterlace_line_inplace(buf,src_m1,src_0,src_0,src_0,width);
- av_free(buf);
-}
-
-int avpicture_deinterlace(AVPicture *dst, const AVPicture *src,
- enum PixelFormat pix_fmt, int width, int height)
-{
- int i;
-
- if (pix_fmt != PIX_FMT_YUV420P &&
- pix_fmt != PIX_FMT_YUV422P &&
- pix_fmt != PIX_FMT_YUV444P &&
- pix_fmt != PIX_FMT_YUV411P &&
- pix_fmt != PIX_FMT_GRAY8)
- return -1;
- if ((width & 3) != 0 || (height & 3) != 0)
- return -1;
-
- for(i=0;i<3;i++) {
- if (i == 1) {
- switch(pix_fmt) {
- case PIX_FMT_YUV420P:
- width >>= 1;
- height >>= 1;
- break;
- case PIX_FMT_YUV422P:
- width >>= 1;
- break;
- case PIX_FMT_YUV411P:
- width >>= 2;
- break;
- default:
- break;
- }
- if (pix_fmt == PIX_FMT_GRAY8) {
- break;
- }
- }
- if (src == dst) {
- deinterlace_bottom_field_inplace(dst->data[i], dst->linesize[i],
- width, height);
- } else {
- deinterlace_bottom_field(dst->data[i],dst->linesize[i],
- src->data[i], src->linesize[i],
- width, height);
- }
- }
- emms_c();
- return 0;
-}
-
projects / ffmpeg / blobdiff