1 files changed, 97 insertions, 0 deletions
diff --git a/libavfilter/avcodec.c b/libavfilter/avcodec.c
new file mode 100644
index 0000000000..ce003abaa0
--- /dev/null
+++ b/libavfilter/avcodec.c
@@ -0,0 +1,97 @@
+/*
+ * 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
+ * libavcodec/libavfilter gluing utilities
+ */
+
+#include "avcodec.h"
+#include "libavutil/opt.h"
+
+AVFilterBufferRef *avfilter_get_video_buffer_ref_from_frame(const AVFrame *frame,
+                                                            int perms)
+{
+    AVFilterBufferRef *picref =
+        avfilter_get_video_buffer_ref_from_arrays(frame->data, frame->linesize, perms,
+                                                  frame->width, frame->height,
+                                                  frame->format);
+    if (!picref)
+        return NULL;
+    avfilter_copy_frame_props(picref, frame);
+    return picref;
+}
+
+AVFilterBufferRef *avfilter_get_audio_buffer_ref_from_frame(const AVFrame *frame,
+                                                            int perms)
+{
+    AVFilterBufferRef *picref =
+        avfilter_get_audio_buffer_ref_from_arrays((uint8_t **)frame->data, frame->linesize[0], perms,
+                                                  frame->nb_samples, frame->format,
+                                                  av_frame_get_channel_layout(frame));
+    if (!picref)
+        return NULL;
+    avfilter_copy_frame_props(picref, frame);
+    return picref;
+}
+
+int avfilter_fill_frame_from_audio_buffer_ref(AVFrame *frame,
+                                              const AVFilterBufferRef *samplesref)
+{
+    if (!samplesref || !samplesref->audio || !frame)
+        return AVERROR(EINVAL);
+
+    memcpy(frame->data, samplesref->data, sizeof(frame->data));
+    frame->pkt_pos    = samplesref->pos;
+    frame->format     = samplesref->format;
+    frame->nb_samples = samplesref->audio->nb_samples;
+    frame->pts        = samplesref->pts;
+
+    return 0;
+}
+
+int avfilter_fill_frame_from_video_buffer_ref(AVFrame *frame,
+                                              const AVFilterBufferRef *picref)
+{
+    if (!picref || !picref->video || !frame)
+        return AVERROR(EINVAL);
+
+    memcpy(frame->data,     picref->data,     sizeof(frame->data));
+    memcpy(frame->linesize, picref->linesize, sizeof(frame->linesize));
+    frame->pkt_pos          = picref->pos;
+    frame->interlaced_frame = picref->video->interlaced;
+    frame->top_field_first  = picref->video->top_field_first;
+    frame->key_frame        = picref->video->key_frame;
+    frame->pict_type        = picref->video->pict_type;
+    frame->sample_aspect_ratio = picref->video->sample_aspect_ratio;
+    frame->width            = picref->video->w;
+    frame->height           = picref->video->h;
+    frame->format           = picref->format;
+    frame->pts              = picref->pts;
+
+    return 0;
+}
+
+int avfilter_fill_frame_from_buffer_ref(AVFrame *frame,
+                                        const AVFilterBufferRef *ref)
+{
+    if (!ref)
+        return AVERROR(EINVAL);
+    return ref->video ? avfilter_fill_frame_from_video_buffer_ref(frame, ref)
+                      : avfilter_fill_frame_from_audio_buffer_ref(frame, ref);
+}