[FFmpeg-soc] [soc]: r951 - in libavfilter: Makefile allfilters.h avfilter.c vf_split.c

[koorogi]

Author: koorogi
Date: Sat Aug 18 05:38:40 2007
New Revision: 951

Log:
Add a filter to output the same video to two outputs


Added:
   libavfilter/vf_split.c
Modified:
   libavfilter/Makefile
   libavfilter/allfilters.h
   libavfilter/avfilter.c

Modified: libavfilter/Makefile
==============================================================================
--- libavfilter/Makefile	(original)
+++ libavfilter/Makefile	Sat Aug 18 05:38:40 2007
@@ -17,6 +17,7 @@ OBJS-yes = vsrc_dummy.o \
            vf_passthrough.o \
            vf_rgb2bgr.o \
            vf_slicify.o \
+           vf_split.o \
            vf_vflip.o \
 
 HEADERS = avfilter.h

Modified: libavfilter/allfilters.h
==============================================================================
--- libavfilter/allfilters.h	(original)
+++ libavfilter/allfilters.h	Sat Aug 18 05:38:40 2007
@@ -33,4 +33,5 @@ extern AVFilter vf_overlay;
 extern AVFilter vf_passthrough;
 extern AVFilter vf_rgb2bgr;
 extern AVFilter vf_slicify;
+extern AVFilter vf_split;
 extern AVFilter vf_vflip;

Modified: libavfilter/avfilter.c
==============================================================================
--- libavfilter/avfilter.c	(original)
+++ libavfilter/avfilter.c	Sat Aug 18 05:38:40 2007
@@ -277,6 +277,7 @@ void avfilter_init(void)
     avfilter_register(&vf_passthrough);
     avfilter_register(&vf_rgb2bgr);
     avfilter_register(&vf_slicify);
+    avfilter_register(&vf_split);
     avfilter_register(&vf_vflip);
 }
 

Added: libavfilter/vf_split.c
==============================================================================
--- (empty file)
+++ libavfilter/vf_split.c	Sat Aug 18 05:38:40 2007
@@ -0,0 +1,83 @@
+/*
+ * Video splitter
+ * 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
+ */
+
+#include "avfilter.h"
+
+static int *query_formats(AVFilterLink *link)
+{
+    return avfilter_make_format_list(31,
+                PIX_FMT_YUV444P,  PIX_FMT_YUV422P,  PIX_FMT_YUV420P,
+                PIX_FMT_YUV411P,  PIX_FMT_YUV410P,
+                PIX_FMT_YUYV422,  PIX_FMT_UYVY422,  PIX_FMT_UYYVYY411,
+                PIX_FMT_YUVJ444P, PIX_FMT_YUVJ422P, PIX_FMT_YUVJ420P,
+                PIX_FMT_YUV440P,  PIX_FMT_YUVJ440P,
+                PIX_FMT_RGB32,    PIX_FMT_BGR32,
+                PIX_FMT_RGB32_1,  PIX_FMT_BGR32_1,
+                PIX_FMT_RGB24,    PIX_FMT_BGR24,
+                PIX_FMT_RGB565,   PIX_FMT_BGR565,
+                PIX_FMT_RGB555,   PIX_FMT_BGR555,
+                PIX_FMT_RGB8,     PIX_FMT_BGR8,
+                PIX_FMT_RGB4_BYTE,PIX_FMT_BGR4_BYTE,
+                PIX_FMT_GRAY16BE, PIX_FMT_GRAY16LE,
+                PIX_FMT_GRAY8,    PIX_FMT_PAL8);
+}
+
+static void start_frame(AVFilterLink *link, AVFilterPicRef *picref)
+{
+    avfilter_start_frame(link->dst->outputs[0],
+                         avfilter_ref_pic(picref, ~AV_PERM_WRITE));
+    avfilter_start_frame(link->dst->outputs[1],
+                         avfilter_ref_pic(picref, ~AV_PERM_WRITE));
+}
+
+static void end_frame(AVFilterLink *link)
+{
+    avfilter_end_frame(link->dst->outputs[0]);
+    avfilter_end_frame(link->dst->outputs[1]);
+
+    avfilter_unref_pic(link->cur_pic);
+}
+
+static void draw_slice(AVFilterLink *link, int y, int h)
+{
+    avfilter_draw_slice(link->dst->outputs[0], y, h);
+    avfilter_draw_slice(link->dst->outputs[1], y, h);
+}
+
+AVFilter vf_split =
+{
+    .name      = "split",
+    .author    = "Bobby Bingham",
+
+    .inputs    = (AVFilterPad[]) {{ .name            = "default",
+                                    .type            = AV_PAD_VIDEO,
+                                    .start_frame     = start_frame,
+                                    .draw_slice      = draw_slice,
+                                    .query_formats   = query_formats,
+                                    .end_frame       = end_frame, },
+                                  { .name = NULL}},
+    .outputs   = (AVFilterPad[]) {{ .name            = "default",
+                                    .type            = AV_PAD_VIDEO, },
+                                  { .name            = "default2",
+                                    .type            = AV_PAD_VIDEO, },
+                                  { .name = NULL}},
+};
+