1 files changed, 134 insertions, 0 deletions
diff --git a/ffmpeg/libavfilter/split.c b/ffmpeg/libavfilter/split.c
new file mode 100644
index 0000000..b57d8cd
--- /dev/null
+++ b/ffmpeg/libavfilter/split.c
@@ -0,0 +1,134 @@
+/*
+ * Copyright (c) 2007 Bobby Bingham
+ *
+ * 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
+ * audio and video splitter
+ */
+
+#include <stdio.h>
+
+#include "libavutil/internal.h"
+#include "libavutil/mem.h"
+#include "avfilter.h"
+#include "audio.h"
+#include "internal.h"
+#include "video.h"
+
+static int split_init(AVFilterContext *ctx, const char *args)
+{
+    int i, nb_outputs = 2;
+
+    if (args) {
+        nb_outputs = strtol(args, NULL, 0);
+        if (nb_outputs <= 0) {
+            av_log(ctx, AV_LOG_ERROR, "Invalid number of outputs specified: %d.\n",
+                   nb_outputs);
+            return AVERROR(EINVAL);
+        }
+    }
+
+    for (i = 0; i < nb_outputs; i++) {
+        char name[32];
+        AVFilterPad pad = { 0 };
+
+        snprintf(name, sizeof(name), "output%d", i);
+        pad.type = ctx->filter->inputs[0].type;
+        pad.name = av_strdup(name);
+
+        ff_insert_outpad(ctx, i, &pad);
+    }
+
+    return 0;
+}
+
+static void split_uninit(AVFilterContext *ctx)
+{
+    int i;
+
+    for (i = 0; i < ctx->nb_outputs; i++)
+        av_freep(&ctx->output_pads[i].name);
+}
+
+static int filter_frame(AVFilterLink *inlink, AVFrame *frame)
+{
+    AVFilterContext *ctx = inlink->dst;
+    int i, ret = AVERROR_EOF;
+
+    for (i = 0; i < ctx->nb_outputs; i++) {
+        AVFrame *buf_out;
+
+        if (ctx->outputs[i]->closed)
+            continue;
+        buf_out = av_frame_clone(frame);
+        if (!buf_out) {
+            ret = AVERROR(ENOMEM);
+            break;
+        }
+
+        ret = ff_filter_frame(ctx->outputs[i], buf_out);
+        if (ret < 0)
+            break;
+    }
+    av_frame_free(&frame);
+    return ret;
+}
+
+static const AVFilterPad avfilter_vf_split_inputs[] = {
+    {
+        .name             = "default",
+        .type             = AVMEDIA_TYPE_VIDEO,
+        .get_video_buffer = ff_null_get_video_buffer,
+        .filter_frame     = filter_frame,
+    },
+    { NULL }
+};
+
+AVFilter avfilter_vf_split = {
+    .name      = "split",
+    .description = NULL_IF_CONFIG_SMALL("Pass on the input video to N outputs."),
+
+    .init   = split_init,
+    .uninit = split_uninit,
+
+    .inputs    = avfilter_vf_split_inputs,
+    .outputs   = NULL,
+};
+
+static const AVFilterPad avfilter_af_asplit_inputs[] = {
+    {
+        .name             = "default",
+        .type             = AVMEDIA_TYPE_AUDIO,
+        .get_audio_buffer = ff_null_get_audio_buffer,
+        .filter_frame     = filter_frame,
+    },
+    { NULL }
+};
+
+AVFilter avfilter_af_asplit = {
+    .name        = "asplit",
+    .description = NULL_IF_CONFIG_SMALL("Pass on the audio input to N audio outputs."),
+
+    .init   = split_init,
+    .uninit = split_uninit,
+
+    .inputs  = avfilter_af_asplit_inputs,
+    .outputs = NULL,
+};