Add m-esr52 at 52.6.0

1 files changed, 235 insertions, 0 deletions

diff --git a/media/ffvpx/libavcodec/imgconvert.c b/media/ffvpx/libavcodec/imgconvert.c
new file mode 100644
index 0000000000..46fa7809bd
--- /dev/null
+++ b/media/ffvpx/libavcodec/imgconvert.c
@@ -0,0 +1,235 @@
+/*
+ * Misc image conversion routines
+ * Copyright (c) 2001, 2002, 2003 Fabrice Bellard
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * misc image conversion routines
+ */
+
+#include "avcodec.h"
+#include "internal.h"
+#include "mathops.h"
+#include "libavutil/avassert.h"
+#include "libavutil/colorspace.h"
+#include "libavutil/common.h"
+#include "libavutil/pixdesc.h"
+#include "libavutil/internal.h"
+#include "libavutil/imgutils.h"
+
+#if FF_API_GETCHROMA
+void avcodec_get_chroma_sub_sample(enum AVPixelFormat pix_fmt, int *h_shift, int *v_shift)
+{
+    const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(pix_fmt);
+    av_assert0(desc);
+    *h_shift = desc->log2_chroma_w;
+    *v_shift = desc->log2_chroma_h;
+}
+#endif
+
+int avcodec_get_pix_fmt_loss(enum AVPixelFormat dst_pix_fmt,
+                             enum AVPixelFormat src_pix_fmt,
+                             int has_alpha)
+{
+    return av_get_pix_fmt_loss(dst_pix_fmt, src_pix_fmt, has_alpha);
+}
+
+enum AVPixelFormat avcodec_find_best_pix_fmt_of_2(enum AVPixelFormat dst_pix_fmt1, enum AVPixelFormat dst_pix_fmt2,
+                                            enum AVPixelFormat src_pix_fmt, int has_alpha, int *loss_ptr)
+{
+    return av_find_best_pix_fmt_of_2(dst_pix_fmt1, dst_pix_fmt2, src_pix_fmt, has_alpha, loss_ptr);
+}
+
+#if AV_HAVE_INCOMPATIBLE_LIBAV_ABI
+enum AVPixelFormat avcodec_find_best_pix_fmt2(const enum AVPixelFormat *pix_fmt_list,
+                                            enum AVPixelFormat src_pix_fmt,
+                                            int has_alpha, int *loss_ptr){
+    return avcodec_find_best_pix_fmt_of_list(pix_fmt_list, src_pix_fmt, has_alpha, loss_ptr);
+}
+#else
+enum AVPixelFormat avcodec_find_best_pix_fmt2(enum AVPixelFormat dst_pix_fmt1, enum AVPixelFormat dst_pix_fmt2,
+                                            enum AVPixelFormat src_pix_fmt, int has_alpha, int *loss_ptr)
+{
+    return avcodec_find_best_pix_fmt_of_2(dst_pix_fmt1, dst_pix_fmt2, src_pix_fmt, has_alpha, loss_ptr);
+}
+#endif
+
+enum AVPixelFormat avcodec_find_best_pix_fmt_of_list(const enum AVPixelFormat *pix_fmt_list,
+                                            enum AVPixelFormat src_pix_fmt,
+                                            int has_alpha, int *loss_ptr){
+    int i;
+
+    enum AVPixelFormat best = AV_PIX_FMT_NONE;
+
+    for(i=0; pix_fmt_list[i] != AV_PIX_FMT_NONE; i++)
+        best = avcodec_find_best_pix_fmt_of_2(best, pix_fmt_list[i], src_pix_fmt, has_alpha, loss_ptr);
+
+    return best;
+}
+
+#if FF_API_AVPICTURE
+FF_DISABLE_DEPRECATION_WARNINGS
+/* return true if yuv planar */
+static inline int is_yuv_planar(const AVPixFmtDescriptor *desc)
+{
+    int i;
+    int planes[4] = { 0 };
+
+    if (     desc->flags & AV_PIX_FMT_FLAG_RGB
+        || !(desc->flags & AV_PIX_FMT_FLAG_PLANAR))
+        return 0;
+
+    /* set the used planes */
+    for (i = 0; i < desc->nb_components; i++)
+        planes[desc->comp[i].plane] = 1;
+
+    /* if there is an unused plane, the format is not planar */
+    for (i = 0; i < desc->nb_components; i++)
+        if (!planes[i])
+            return 0;
+    return 1;
+}
+
+int av_picture_crop(AVPicture *dst, const AVPicture *src,
+                    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;
+    int max_step[4];
+
+    if (pix_fmt < 0 || pix_fmt >= AV_PIX_FMT_NB)
+        return -1;
+
+    y_shift = desc->log2_chroma_h;
+    x_shift = desc->log2_chroma_w;
+    av_image_fill_max_pixsteps(max_step, NULL, desc);
+
+    if (is_yuv_planar(desc)) {
+    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);
+    dst->data[2] = src->data[2] + ((top_band >> y_shift) * src->linesize[2]) + (left_band >> x_shift);
+    } else{
+        if(top_band % (1<<y_shift) || left_band % (1<<x_shift))
+            return -1;
+        dst->data[0] = src->data[0] + (top_band * src->linesize[0]) + (left_band * max_step[0]);
+    }
+
+    dst->linesize[0] = src->linesize[0];
+    dst->linesize[1] = src->linesize[1];
+    dst->linesize[2] = src->linesize[2];
+    return 0;
+}
+
+int av_picture_pad(AVPicture *dst, const AVPicture *src, int height, int width,
+                   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;
+    int max_step[4];
+
+    if (pix_fmt < 0 || pix_fmt >= AV_PIX_FMT_NB)
+        return -1;
+
+    if (!is_yuv_planar(desc)) {
+        if (src)
+            return -1; //TODO: Not yet implemented
+
+        av_image_fill_max_pixsteps(max_step, NULL, desc);
+
+        if (padtop || padleft) {
+            memset(dst->data[0], color[0],
+                    dst->linesize[0] * padtop + (padleft * max_step[0]));
+        }
+
+        if (padleft || padright) {
+            optr = dst->data[0] + dst->linesize[0] * padtop +
+                    (dst->linesize[0] - (padright * max_step[0]));
+            yheight = height - 1 - (padtop + padbottom);
+            for (y = 0; y < yheight; y++) {
+                memset(optr, color[0], (padleft + padright) * max_step[0]);
+                optr += dst->linesize[0];
+            }
+        }
+
+        if (padbottom || padright) {
+            optr = dst->data[0] + dst->linesize[0] * (height - padbottom) -
+                    (padright * max_step[0]);
+            memset(optr, color[0], dst->linesize[0] * padbottom +
+                    (padright * max_step[0]));
+        }
+
+        return 0;
+    }
+
+    for (i = 0; i < 3; i++) {
+        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],
+                dst->linesize[i] * (padtop >> y_shift) + (padleft >> x_shift));
+        }
+
+        if (padleft || padright) {
+            optr = dst->data[i] + dst->linesize[i] * (padtop >> y_shift) +
+                (dst->linesize[i] - (padright >> x_shift));
+            yheight = (height - 1 - (padtop + padbottom)) >> y_shift;
+            for (y = 0; y < yheight; y++) {
+                memset(optr, color[i], (padleft + padright) >> x_shift);
+                optr += dst->linesize[i];
+            }
+        }
+
+        if (src) { /* first line */
+            uint8_t *iptr = src->data[i];
+            optr = dst->data[i] + dst->linesize[i] * (padtop >> y_shift) +
+                    (padleft >> x_shift);
+            memcpy(optr, iptr, (width - padleft - padright) >> x_shift);
+            iptr += src->linesize[i];
+            optr = dst->data[i] + dst->linesize[i] * (padtop >> y_shift) +
+                (dst->linesize[i] - (padright >> x_shift));
+            yheight = (height - 1 - (padtop + padbottom)) >> y_shift;
+            for (y = 0; y < yheight; y++) {
+                memset(optr, color[i], (padleft + padright) >> x_shift);
+                memcpy(optr + ((padleft + padright) >> x_shift), iptr,
+                       (width - padleft - padright) >> x_shift);
+                iptr += src->linesize[i];
+                optr += dst->linesize[i];
+            }
+        }
+
+        if (padbottom || padright) {
+            optr = dst->data[i] + dst->linesize[i] *
+                ((height - padbottom) >> y_shift) - (padright >> x_shift);
+            memset(optr, color[i],dst->linesize[i] *
+                (padbottom >> y_shift) + (padright >> x_shift));
+        }
+    }
+
+    return 0;
+}
+FF_ENABLE_DEPRECATION_WARNINGS
+#endif /* FF_API_AVPICTURE */