1 files changed, 83 insertions, 0 deletions
diff --git a/libavutil/formaton.c b/libavutil/formaton.c
new file mode 100644
index 0000000000..bcf358438b
--- /dev/null
+++ b/libavutil/formaton.c
@@ -0,0 +1,83 @@
+/*
+ * Copyright (c) 2015 Kostya Shishkov
+ * This file is part of Libav.
+ *
+ * Libav is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public
+ * License as published by the Free Software Foundation; either
+ * version 3 of the License, or (at your option) any later version.
+ *
+ * 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
+ * General Public License for more details.
+ * You should have received a copy of the GNU General Public License
+ * along with this program; see the file COPYING.GPLv3.  If not see
+ * <http://www.gnu.org/licenses/>.
+ */
+
+#include <string.h>
+
+#include "formaton.h"
+#include "mem.h"
+#include "pixdesc.h"
+#include "pixfmt.h"
+
+AVPixelFormaton *av_formaton_from_pixfmt(enum AVPixelFormat pix_fmt)
+{
+    AVPixelFormaton *formaton = av_mallocz(sizeof(AVPixelFormaton));
+    const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(pix_fmt);
+    int i;
+
+    if (!formaton)
+        return NULL;
+    if (!desc)
+        goto fail;
+
+    formaton->name = strdup(desc->name);
+    if (!formaton->name)
+        goto fail;
+    formaton->flags = desc->flags;
+
+    // XXX luzero disapproves
+    if (strchr(desc->name, 'j'))
+        formaton->range = AVCOL_RANGE_JPEG;
+    else
+        formaton->range = AVCOL_RANGE_UNSPECIFIED;
+    formaton->primaries = AVCOL_PRI_UNSPECIFIED;
+    formaton->transfer  = AVCOL_TRC_UNSPECIFIED;
+    formaton->space     = AVCOL_SPC_UNSPECIFIED;
+    formaton->location  = AVCHROMA_LOC_UNSPECIFIED;
+
+    formaton->nb_components = desc->nb_components;
+
+    for (i = 0; i < formaton->nb_components; i++) {
+        AVChromaton *chromaton = &formaton->component_desc[i];
+        const AVComponentDescriptor *comp = &desc->comp[i];
+
+        chromaton->plane = comp->plane;
+        chromaton->step  = comp->step;
+        chromaton->h_sub_log = desc->log2_chroma_w;
+        chromaton->v_sub_log = desc->log2_chroma_h;
+        chromaton->off = comp->offset;
+        chromaton->shift = comp->shift;
+        chromaton->depth = comp->depth;
+        chromaton->packed = 0; // XXX luzero does not remember
+        chromaton->next = 0; // XXX luzero does not remember
+    }
+
+    return formaton;
+
+fail:
+    av_formaton_free(&formaton);
+    return NULL;
+}
+
+void av_formaton_free(AVPixelFormaton **formaton)
+{
+    if (!formaton || !*formaton)
+        return;
+
+    av_freep(&(*formaton)->name);
+    av_freep(formaton);
+}