lavfi: add audio mix filter

[ffmpeg] / libavfilter / vf_crop.c

diff --git a/libavfilter/vf_crop.c b/libavfilter/vf_crop.c
index 61019ef80e60df3fc21f3f44051fc75b64d53659..5452601068a73a0181c119ec0d75ced977bd05f9 100644 (file)
--- a/libavfilter/vf_crop.c
+++ b/libavfilter/vf_crop.c
@@ -1,20 +1,20 @@
 /*
- * copyright (c) 2007 Bobby Bingham
+ * Copyright (c) 2007 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
  */
 
@@ -23,13 +23,17 @@
  * video crop filter
  */
 
+/* #define DEBUG */
+
 #include "avfilter.h"
+#include "video.h"
 #include "libavutil/eval.h"
 #include "libavutil/avstring.h"
 #include "libavutil/libm.h"
-#include "libavcore/imgutils.h"
+#include "libavutil/imgutils.h"
+#include "libavutil/mathematics.h"
 
-static const char *var_names[] = {
+static const char *const var_names[] = {
     "E",
     "PHI",
     "PI",
@@ -78,6 +82,7 @@ static int query_formats(AVFilterContext *ctx)
 {
     static const enum PixelFormat pix_fmts[] = {
         PIX_FMT_RGB48BE,      PIX_FMT_RGB48LE,
+        PIX_FMT_BGR48BE,      PIX_FMT_BGR48LE,
         PIX_FMT_ARGB,         PIX_FMT_RGBA,
         PIX_FMT_ABGR,         PIX_FMT_BGRA,
         PIX_FMT_RGB24,        PIX_FMT_BGR24,
@@ -201,7 +206,7 @@ static int config_input(AVFilterLink *link)
         return AVERROR(EINVAL);
 
     av_log(ctx, AV_LOG_INFO, "w:%d h:%d -> w:%d h:%d\n",
-           link->w, link->h, crop->w, crop->h, crop->x, crop->y);
+           link->w, link->h, crop->w, crop->h);
 
     if (crop->w <= 0 || crop->h <= 0 ||
         crop->w > link->w || crop->h > link->h) {
@@ -237,11 +242,12 @@ static void start_frame(AVFilterLink *link, AVFilterBufferRef *picref)
 {
     AVFilterContext *ctx = link->dst;
     CropContext *crop = ctx->priv;
-    AVFilterBufferRef *ref2 = avfilter_ref_buffer(picref, ~0);
+    AVFilterBufferRef *ref2;
     int i;
 
-    picref->video->w = crop->w;
-    picref->video->h = crop->h;
+    ref2 = avfilter_ref_buffer(picref, ~0);
+    ref2->video->w = crop->w;
+    ref2->video->h = crop->h;
 
     crop->var_values[VAR_T] = picref->pts == AV_NOPTS_VALUE ?
         NAN : picref->pts * av_q2d(link->time_base);
@@ -260,14 +266,15 @@ static void start_frame(AVFilterLink *link, AVFilterBufferRef *picref)
     crop->x &= ~((1 << crop->hsub) - 1);
     crop->y &= ~((1 << crop->vsub) - 1);
 
-    av_log(ctx, AV_LOG_DEBUG,
-           "n:%d t:%f x:%d y:%d x+w:%d y+h:%d\n",
-           (int)crop->var_values[VAR_N], crop->var_values[VAR_T], crop->x, crop->y, crop->x+crop->w, crop->y+crop->h);
+    av_dlog(ctx, "n:%d t:%f x:%d y:%d x+w:%d y+h:%d\n",
+            (int)crop->var_values[VAR_N], crop->var_values[VAR_T], crop->x,
+            crop->y, crop->x+crop->w, crop->y+crop->h);
 
     ref2->data[0] += crop->y * ref2->linesize[0];
     ref2->data[0] += crop->x * crop->max_step[0];
 
-    if (!(av_pix_fmt_descriptors[link->format].flags & PIX_FMT_PAL)) {
+    if (!(av_pix_fmt_descriptors[link->format].flags & PIX_FMT_PAL ||
+          av_pix_fmt_descriptors[link->format].flags & PIX_FMT_PSEUDOPAL)) {
         for (i = 1; i < 3; i ++) {
             if (ref2->data[i]) {
                 ref2->data[i] += (crop->y >> crop->vsub) * ref2->linesize[i];
@@ -327,7 +334,7 @@ AVFilter avfilter_vf_crop = {
                                     .start_frame      = start_frame,
                                     .draw_slice       = draw_slice,
                                     .end_frame        = end_frame,
-                                    .get_video_buffer = avfilter_null_get_video_buffer,
+                                    .get_video_buffer = ff_null_get_video_buffer,
                                     .config_props     = config_input, },
                                   { .name = NULL}},
     .outputs   = (AVFilterPad[]) {{ .name             = "default",