]> git.sesse.net Git - ffmpeg/blobdiff - libavfilter/vf_aspect.c
libm: add fallbacks for various single-precision functions
[ffmpeg] / libavfilter / vf_aspect.c
index 2f1b8ce6b177d234daefe47d4b718e11d6730278..9f0c0c00a69afeae23caa4b5db0b5965aaa0c02a 100644 (file)
@@ -1,20 +1,20 @@
 /*
  * Copyright (c) 2010 Bobby Bingham
 
- * This file is part of FFmpeg.
+ * This file is part of Libav.
  *
- * FFmpeg is free software; you can redistribute it and/or
+ * Libav 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,
+ * 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
  * 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
+ * License along with Libav; if not, write to the Free Software
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  */
 
  * aspect ratio modification video filters
  */
 
+#include "libavutil/common.h"
+#include "libavutil/mathematics.h"
 #include "avfilter.h"
+#include "internal.h"
+#include "video.h"
 
 typedef struct {
     AVRational aspect;
 } AspectContext;
 
-static av_cold int init(AVFilterContext *ctx, const char *args, void *opaque)
+static av_cold int init(AVFilterContext *ctx, const char *args)
 {
     AspectContext *aspect = ctx->priv;
     double  ratio;
@@ -57,16 +61,17 @@ static av_cold int init(AVFilterContext *ctx, const char *args, void *opaque)
     if (aspect->aspect.den == 0)
         aspect->aspect = (AVRational) {0, 1};
 
-    av_log(ctx, AV_LOG_INFO, "a:%d/%d\n", aspect->aspect.num, aspect->aspect.den);
+    av_log(ctx, AV_LOG_VERBOSE, "a:%d/%d\n", aspect->aspect.num, aspect->aspect.den);
     return 0;
 }
 
-static void start_frame(AVFilterLink *link, AVFilterBufferRef *picref)
+static int start_frame(AVFilterLink *link, AVFilterBufferRef *picref)
 {
     AspectContext *aspect = link->dst->priv;
 
     picref->video->pixel_aspect = aspect->aspect;
-    avfilter_start_frame(link->dst->outputs[0], picref);
+    link->cur_buf = NULL;
+    return ff_start_frame(link->dst->outputs[0], picref);
 }
 
 #if CONFIG_SETDAR_FILTER
@@ -80,11 +85,34 @@ static int setdar_config_props(AVFilterLink *inlink)
                aspect->aspect.num * inlink->h,
                aspect->aspect.den * inlink->w, 100);
 
-    av_log(inlink->dst, AV_LOG_INFO, "w:%d h:%d -> dar:%d/%d par:%d/%d\n",
-           inlink->h, inlink->w, dar.num, dar.den, aspect->aspect.num, aspect->aspect.den);
+    av_log(inlink->dst, AV_LOG_VERBOSE, "w:%d h:%d -> dar:%d/%d sar:%d/%d\n",
+           inlink->w, inlink->h, dar.num, dar.den, aspect->aspect.num, aspect->aspect.den);
+
+    inlink->sample_aspect_ratio = aspect->aspect;
+
     return 0;
 }
 
+static const AVFilterPad avfilter_vf_setdar_inputs[] = {
+    {
+        .name             = "default",
+        .type             = AVMEDIA_TYPE_VIDEO,
+        .config_props     = setdar_config_props,
+        .get_video_buffer = ff_null_get_video_buffer,
+        .start_frame      = start_frame,
+        .end_frame        = ff_null_end_frame
+    },
+    { NULL }
+};
+
+static const AVFilterPad avfilter_vf_setdar_outputs[] = {
+    {
+        .name = "default",
+        .type = AVMEDIA_TYPE_VIDEO,
+    },
+    { NULL }
+};
+
 AVFilter avfilter_vf_setdar = {
     .name      = "setdar",
     .description = NULL_IF_CONFIG_SMALL("Set the frame display aspect ratio."),
@@ -93,21 +121,43 @@ AVFilter avfilter_vf_setdar = {
 
     .priv_size = sizeof(AspectContext),
 
-    .inputs    = (AVFilterPad[]) {{ .name             = "default",
-                                    .type             = AVMEDIA_TYPE_VIDEO,
-                                    .config_props     = setdar_config_props,
-                                    .get_video_buffer = avfilter_null_get_video_buffer,
-                                    .start_frame      = start_frame,
-                                    .end_frame        = avfilter_null_end_frame },
-                                  { .name = NULL}},
-
-    .outputs   = (AVFilterPad[]) {{ .name             = "default",
-                                    .type             = AVMEDIA_TYPE_VIDEO, },
-                                  { .name = NULL}},
+    .inputs    = avfilter_vf_setdar_inputs,
+
+    .outputs   = avfilter_vf_setdar_outputs,
 };
 #endif /* CONFIG_SETDAR_FILTER */
 
 #if CONFIG_SETSAR_FILTER
+/* for setdar filter, convert from frame aspect ratio to pixel aspect ratio */
+static int setsar_config_props(AVFilterLink *inlink)
+{
+    AspectContext *aspect = inlink->dst->priv;
+
+    inlink->sample_aspect_ratio = aspect->aspect;
+
+    return 0;
+}
+
+static const AVFilterPad avfilter_vf_setsar_inputs[] = {
+    {
+        .name             = "default",
+        .type             = AVMEDIA_TYPE_VIDEO,
+        .config_props     = setsar_config_props,
+        .get_video_buffer = ff_null_get_video_buffer,
+        .start_frame      = start_frame,
+        .end_frame        = ff_null_end_frame
+    },
+    { NULL }
+};
+
+static const AVFilterPad avfilter_vf_setsar_outputs[] = {
+    {
+        .name = "default",
+        .type = AVMEDIA_TYPE_VIDEO,
+    },
+    { NULL }
+};
+
 AVFilter avfilter_vf_setsar = {
     .name      = "setsar",
     .description = NULL_IF_CONFIG_SMALL("Set the pixel sample aspect ratio."),
@@ -116,16 +166,8 @@ AVFilter avfilter_vf_setsar = {
 
     .priv_size = sizeof(AspectContext),
 
-    .inputs    = (AVFilterPad[]) {{ .name             = "default",
-                                    .type             = AVMEDIA_TYPE_VIDEO,
-                                    .get_video_buffer = avfilter_null_get_video_buffer,
-                                    .start_frame      = start_frame,
-                                    .end_frame        = avfilter_null_end_frame },
-                                  { .name = NULL}},
+    .inputs    = avfilter_vf_setsar_inputs,
 
-    .outputs   = (AVFilterPad[]) {{ .name             = "default",
-                                    .type             = AVMEDIA_TYPE_VIDEO, },
-                                  { .name = NULL}},
+    .outputs   = avfilter_vf_setsar_outputs,
 };
 #endif /* CONFIG_SETSAR_FILTER */
-