they do and their capabilities.
Originally committed as revision 1265 to svn://svn.ffmpeg.org/ffmpeg/trunk
--- /dev/null
+include ../config.mak
+
+CFLAGS=-fPIC $(OPTFLAGS) -g -Wall -I.. -I../libav -I../libavcodec -DHAVE_AV_CONFIG_H
+
+HOOKS=null.so fish.so
+
+ifeq ($(HAVE_IMLIB2),yes)
+ HOOKS += imlib2.so
+endif
+
+all: $(HOOKS) hooks.html
+
+install:
+ install -s -m 755 $(HOOKS) $(INSTDIR)
+
+imlib2.so: imlib2.o
+ $(CC) -g -o $@ -shared $< -lImlib2
+ rm $<
+
+%.so: %.o
+ $(CC) -g -o $@ -shared $<
+
+%.html: %.texi
+ texi2html -monolithic -number $<
+
+clean:
+ rm -f *.o *.so *~
--- /dev/null
+/*
+ * Fish Detector Hook
+ * Copyright (c) 2002 Philip Gladstone
+ *
+ * This file implements a fish detector. It is used to see when a
+ * goldfish passes in front of the camera. It does this by counting
+ * the number of input pixels that fall within a particular HSV
+ * range.
+ *
+ * It takes a multitude of arguments:
+ *
+ * -h <num>-<num> the range of H values that are fish
+ * -s <num>-<num> the range of S values that are fish
+ * -v <num>-<num> the range of V values that are fish
+ * -z zap all non-fish values to black
+ * -l <num> limit the number of saved files to <num>
+ * -i <num> only check frames every <num> seconds
+ * -t <num> the threshold for the amount of fish pixels (range 0-1)
+ * -d turn debugging on
+ * -D <directory> where to put the fish images
+ *
+ * This library 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 of the License, or (at your option) any later version.
+ *
+ * This library 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 this library; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+#include <stdlib.h>
+#include <fcntl.h>
+#include <getopt.h>
+#include <stdarg.h>
+#include <string.h>
+#include <sys/time.h>
+#include <stdio.h>
+#include <dirent.h>
+
+#include "framehook.h"
+#include "dsputil.h"
+
+#define SCALE_BITS 10
+
+#define C_Y (76309 >> (16 - SCALE_BITS))
+#define C_RV (117504 >> (16 - SCALE_BITS))
+#define C_BU (138453 >> (16 - SCALE_BITS))
+#define C_GU (13954 >> (16 - SCALE_BITS))
+#define C_GV (34903 >> (16 - SCALE_BITS))
+
+
+typedef struct {
+ int h; /* 0 .. 360 */
+ int s; /* 0 .. 255 */
+ int v; /* 0 .. 255 */
+} HSV;
+
+typedef struct {
+ int zapping;
+ int threshold;
+ HSV dark, bright;
+ char *dir;
+ int file_limit;
+ int debug;
+ int min_interval;
+ INT64 next_pts;
+ int inset;
+ int min_width;
+} ContextInfo;
+
+static void dorange(const char *s, int *first, int *second, int maxval)
+{
+ sscanf(s, "%d-%d", first, second);
+ if (*first > maxval)
+ *first = maxval;
+ if (*second > maxval)
+ *second = maxval;
+}
+
+
+int Configure(void **ctxp, int argc, char *argv[])
+{
+ ContextInfo *ci;
+ int c;
+
+ *ctxp = av_mallocz(sizeof(ContextInfo));
+ ci = (ContextInfo *) *ctxp;
+
+ optind = 0;
+
+ ci->dir = "/tmp";
+ ci->threshold = 1000;
+ ci->file_limit = 100;
+ ci->min_interval = 1000000;
+ ci->inset = 10; /* Percent */
+
+ while ((c = getopt(argc, argv, "w:i:dh:s:v:zl:t:D:")) > 0) {
+ switch (c) {
+ case 'h':
+ dorange(optarg, &ci->dark.h, &ci->bright.h, 360);
+ break;
+ case 's':
+ dorange(optarg, &ci->dark.s, &ci->bright.s, 255);
+ break;
+ case 'v':
+ dorange(optarg, &ci->dark.v, &ci->bright.v, 255);
+ break;
+ case 'z':
+ ci->zapping = 1;
+ break;
+ case 'l':
+ ci->file_limit = atoi(optarg);
+ break;
+ case 'i':
+ ci->min_interval = 1000000 * atof(optarg);
+ break;
+ case 't':
+ ci->threshold = atof(optarg) * 1000;
+ break;
+ case 'w':
+ ci->min_width = atoi(optarg);
+ break;
+ case 'd':
+ ci->debug++;
+ break;
+ case 'D':
+ ci->dir = strdup(optarg);
+ break;
+ default:
+ fprintf(stderr, "Unrecognized argument '%s'\n", argv[optind]);
+ return -1;
+ }
+ }
+
+ fprintf(stderr, "Fish detector configured:\n");
+ fprintf(stderr, " HSV range: %d,%d,%d - %d,%d,%d\n",
+ ci->dark.h,
+ ci->dark.s,
+ ci->dark.v,
+ ci->bright.h,
+ ci->bright.s,
+ ci->bright.v);
+
+ return 0;
+}
+
+static void get_hsv(HSV *hsv, int r, int g, int b)
+{
+ int i, v, x, f;
+
+ x = (r < g) ? r : g;
+ if (b < x)
+ x = b;
+ v = (r > g) ? r : g;
+ if (b > v)
+ v = b;
+
+ if (v == x) {
+ hsv->h = 0;
+ hsv->s = 0;
+ hsv->v = v;
+ return;
+ }
+
+ if (r == v) {
+ f = g - b;
+ i = 0;
+ } else if (g == v) {
+ f = b - r;
+ i = 2 * 60;
+ } else {
+ f = r - g;
+ i = 4 * 60;
+ }
+
+ hsv->h = i + (60 * f) / (v - x);
+ if (hsv->h < 0)
+ hsv->h += 360;
+
+ hsv->s = (255 * (v - x)) / v;
+ hsv->v = v;
+
+ return;
+}
+
+void Process(void *ctx, AVPicture *picture, enum PixelFormat pix_fmt, int width, int height, INT64 pts)
+{
+ ContextInfo *ci = (ContextInfo *) ctx;
+ UINT8 *cm = cropTbl + MAX_NEG_CROP;
+ int rowsize = picture->linesize[0];
+
+ if (pts < ci->next_pts)
+ return;
+
+ if (width < ci->min_width)
+ return;
+
+ ci->next_pts = pts + 1000000;
+
+ if (pix_fmt == PIX_FMT_YUV420P) {
+ UINT8 *y, *u, *v;
+ int width2 = width >> 1;
+ int inrange = 0;
+ int pixcnt;
+ int h;
+ int h_start, h_end;
+ int w_start, w_end;
+
+ h_end = 2 * ((ci->inset * height) / 200);
+ h_start = height - h_end;
+
+ w_end = (ci->inset * width2) / 100;
+ w_start = width2 - w_end;
+
+ pixcnt = ((h_start - h_end) >> 1) * (w_start - w_end);
+
+ y = picture->data[0];
+ u = picture->data[1];
+ v = picture->data[2];
+
+ for (h = h_start; h > h_end; h -= 2) {
+ int w;
+
+ for (w = w_start; w > w_end; w--) {
+ int r,g,b;
+ int Y, U, V;
+ HSV hsv;
+
+ U = u[0] - 128;
+ V = v[0] - 128;
+
+ Y = (y[0] - 16) * C_Y;
+
+ r = cm[(Y + C_RV * V + (1 << (SCALE_BITS - 1))) >> SCALE_BITS];
+ g = cm[(Y + - C_GU * U - C_GV * V + (1 << (SCALE_BITS - 1))) >> SCALE_BITS];
+ b = cm[(Y + C_BU * U + (1 << (SCALE_BITS - 1))) >> SCALE_BITS];
+
+ get_hsv(&hsv, r, g, b);
+
+ if (ci->debug > 1)
+ fprintf(stderr, "(%d,%d,%d) -> (%d,%d,%d)\n",
+ r,g,b,hsv.h,hsv.s,hsv.v);
+
+
+ if (hsv.h >= ci->dark.h && hsv.h <= ci->bright.h &&
+ hsv.s >= ci->dark.s && hsv.s <= ci->bright.s &&
+ hsv.v >= ci->dark.v && hsv.v <= ci->bright.v) {
+ inrange++;
+ } else if (ci->zapping) {
+ y[0] = y[1] = y[rowsize] = y[rowsize + 1] = 0;
+ }
+
+ y+= 2;
+ u++;
+ v++;
+ }
+
+ y += picture->linesize[0] * 2 - width;
+ u += picture->linesize[1] - width2;
+ v += picture->linesize[2] - width2;
+ }
+
+ if (inrange * 1000 / pixcnt >= ci->threshold) {
+ /* Save to file */
+ int size;
+ char *buf;
+ AVPicture picture1;
+ static int frame_counter;
+ static int foundfile;
+
+ if (ci->debug)
+ fprintf(stderr, "Fish: Inrange=%d of %d = %d threshold\n", inrange, pixcnt, 1000 * inrange / pixcnt);
+
+ if ((frame_counter++ % 20) == 0) {
+ /* Check how many files we have */
+ DIR *d;
+
+ foundfile = 0;
+
+ d = opendir(ci->dir);
+ if (d) {
+ struct dirent *dent;
+
+ while ((dent = readdir(d))) {
+ if (strncmp("fishimg", dent->d_name, 7) == 0) {
+ if (strcmp(".ppm", dent->d_name + strlen(dent->d_name) - 4) == 0) {
+ foundfile++;
+ }
+ }
+ }
+ closedir(d);
+ }
+ }
+
+ if (foundfile < ci->file_limit) {
+ size = avpicture_get_size(PIX_FMT_RGB24, width, height);
+ buf = av_malloc(size);
+
+ avpicture_fill(&picture1, buf, PIX_FMT_RGB24, width, height);
+ if (img_convert(&picture1, PIX_FMT_RGB24,
+ picture, pix_fmt, width, height) >= 0) {
+ /* Write out the PPM file */
+
+ FILE *f;
+ char fname[256];
+
+ sprintf(fname, "%s/fishimg%ld_%lld.ppm", ci->dir, time(0), pts);
+ f = fopen(fname, "w");
+ if (f) {
+ fprintf(f, "P6 %d %d 255\n", width, height);
+ fwrite(buf, width * height * 3, 1, f);
+ fclose(f);
+ }
+ }
+
+ av_free(buf);
+ ci->next_pts = pts + ci->min_interval;
+ }
+ }
+ }
+}
+
+/* To ensure correct typing */
+FrameHookConfigureFn ConfigureFn = Configure;
+FrameHookProcessFn ProcessFn = Process;
--- /dev/null
+<HTML>
+<HEAD>
+<!-- This HTML file has been created by texi2html 1.51
+ from hooks.texi on 20 November 2002 -->
+
+<TITLE>Video Hook Documentation</TITLE>
+</HEAD>
+<BODY>
+<H1>Video Hook Documentation</H1>
+<P>
+<P><HR><P>
+<H1>Table of Contents</H1>
+<UL>
+<LI><A NAME="TOC1" HREF="hooks.html#SEC1">1 Introduction</A>
+<UL>
+<LI><A NAME="TOC2" HREF="hooks.html#SEC2">1.1 null.c</A>
+<LI><A NAME="TOC3" HREF="hooks.html#SEC3">1.2 fish.c</A>
+<LI><A NAME="TOC4" HREF="hooks.html#SEC4">1.3 imlib2.c</A>
+</UL>
+</UL>
+<P><HR><P>
+
+<P>
+Video Hook Documentation
+<P>
+
+</P>
+
+
+
+<H1><A NAME="SEC1" HREF="hooks.html#TOC1">1 Introduction</A></H1>
+
+<P>
+The video hook functionality is designed (mostly) for live video. It allows
+the video to be modified or examined between the decoder and the encoder.
+
+</P>
+<P>
+Any number of hook modules can be placed inline, and they are run in the
+order that they were specified on the ffmpeg command line.
+
+</P>
+<P>
+Three modules are provided and are described below. They are all intended to
+be used as a base for your own modules.
+
+</P>
+<P>
+Modules are loaded using the -vhook option to ffmpeg. The value of this parameter
+is a space seperated list of arguments. The first is the module name, and the rest
+are passed as arguments to the Configure function of the module.
+
+</P>
+
+
+<H2><A NAME="SEC2" HREF="hooks.html#TOC2">1.1 null.c</A></H2>
+
+<P>
+This does nothing. Actually it converts the input image to RGB24 and then converts
+it back again. This is meant as a sample that you can use to test your setup.
+
+</P>
+
+
+<H2><A NAME="SEC3" HREF="hooks.html#TOC3">1.2 fish.c</A></H2>
+
+<P>
+This implements a 'fish detector'. Essentially it converts the image into HSV
+space and tests whether more than a certain percentage of the pixels fall into
+a specific HSV cuboid. If so, then the image is saved into a file for processing
+by other bits of code.
+
+</P>
+<P>
+Why use HSV? It turns out that HSV cuboids represent a more compact range of
+colors than would an RGB cuboid.
+
+</P>
+
+
+<H2><A NAME="SEC4" HREF="hooks.html#TOC4">1.3 imlib2.c</A></H2>
+
+<P>
+This allows a caption to be placed onto each frame. It supports inserting the
+time and date. By using the imlib functions, it would be easy to add your own
+graphical logo, add a frame/border, etc.
+
+</P>
+
+<P><HR><P>
+This document was generated on 20 November 2002 using the
+<A HREF="http://wwwcn.cern.ch/dci/texi2html/">texi2html</A>
+translator version 1.51.</P>
+</BODY>
+</HTML>
--- /dev/null
+\input texinfo @c -*- texinfo -*-
+
+@settitle Video Hook Documentation
+@titlepage
+@sp 7
+@center @titlefont{Video Hook Documentation}
+@sp 3
+@end titlepage
+
+
+@chapter Introduction
+
+
+The video hook functionality is designed (mostly) for live video. It allows
+the video to be modified or examined between the decoder and the encoder.
+
+Any number of hook modules can be placed inline, and they are run in the
+order that they were specified on the ffmpeg command line.
+
+Three modules are provided and are described below. They are all intended to
+be used as a base for your own modules.
+
+Modules are loaded using the -vhook option to ffmpeg. The value of this parameter
+is a space seperated list of arguments. The first is the module name, and the rest
+are passed as arguments to the Configure function of the module.
+
+@section null.c
+
+This does nothing. Actually it converts the input image to RGB24 and then converts
+it back again. This is meant as a sample that you can use to test your setup.
+
+@section fish.c
+
+This implements a 'fish detector'. Essentially it converts the image into HSV
+space and tests whether more than a certain percentage of the pixels fall into
+a specific HSV cuboid. If so, then the image is saved into a file for processing
+by other bits of code.
+
+Why use HSV? It turns out that HSV cuboids represent a more compact range of
+colors than would an RGB cuboid.
+
+@section imlib2.c
+
+This allows a caption to be placed onto each frame. It supports inserting the
+time and date. By using the imlib functions, it would be easy to add your own
+graphical logo, add a frame/border, etc.
+
+
+@bye
--- /dev/null
+/*
+ * imlib2 based hook
+ * Copyright (c) 2002 Philip Gladstone
+ *
+ * This module implements a text overlay for a video image. Currently it
+ * supports a fixed overlay or reading the text from a file. The string
+ * is passed through strftime so that it is easy to imprint the date and
+ * time onto the image.
+ *
+ * Options:
+ *
+ * -c <color> The color of the text
+ * -F <fontname> The font face and size
+ * -t <text> The text
+ * -f <filename> The filename to read text from
+ * -x <num> X coordinate to start text
+ * -y <num> Y coordinate to start text
+ *
+ * This module is very much intended as an example of what could be done.
+ * For example, you could overlay an image (even semi-transparent) like
+ * TV stations do. You can manipulate the image using imlib2 functions
+ * in any way.
+ *
+ * One caution is that this is an expensive process -- in particular the
+ * conversion of the image into RGB and back is time consuming. For some
+ * special cases -- e.g. painting black text -- it would be faster to paint
+ * the text into a bitmap and then combine it directly into the YUV
+ * image. However, this code is fast enough to handle 10 fps of 320x240 on a
+ * 900MHz Duron in maybe 15% of the CPU.
+ *
+ * This library 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 of the License, or (at your option) any later version.
+ *
+ * This library 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 this library; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+#include <stdio.h>
+#include <stdlib.h>
+#include <fcntl.h>
+#include <getopt.h>
+#include <stdarg.h>
+#include <string.h>
+#include <unistd.h>
+#include <sys/time.h>
+#include <X11/Xlib.h>
+#include <Imlib2.h>
+
+#include "framehook.h"
+
+typedef struct {
+ int dummy;
+ Imlib_Font fn;
+ char *text;
+ char *file;
+ int r, g, b;
+ int x;
+ int y;
+ struct _CachedImage *cache;
+} ContextInfo;
+
+typedef struct _CachedImage {
+ struct _CachedImage *next;
+ Imlib_Image image;
+ int width;
+ int height;
+} CachedImage;
+
+
+int Configure(void **ctxp, int argc, char *argv[])
+{
+ int c;
+ ContextInfo *ci;
+ char *font = "LucidaSansDemiBold/16";
+ char *fp = getenv("FONTPATH");
+ char *color = 0;
+ FILE *f;
+
+ *ctxp = av_mallocz(sizeof(ContextInfo));
+ ci = (ContextInfo *) *ctxp;
+
+ optind = 0;
+
+ if (fp)
+ imlib_add_path_to_font_path(fp);
+
+ while ((c = getopt(argc, argv, "c:f:F:t:x:y:")) > 0) {
+ switch (c) {
+ case 'c':
+ color = optarg;
+ break;
+ case 'F':
+ font = optarg;
+ break;
+ case 't':
+ ci->text = strdup(optarg);
+ break;
+ case 'f':
+ ci->file = strdup(optarg);
+ break;
+ case 'x':
+ ci->x = atoi(optarg);
+ break;
+ case 'y':
+ ci->y = atoi(optarg);
+ break;
+ case '?':
+ fprintf(stderr, "Unrecognized argument '%s'\n", argv[optind]);
+ return -1;
+ }
+ }
+
+ ci->fn = imlib_load_font(font);
+ if (!ci->fn) {
+ fprintf(stderr, "Failed to load font '%s'\n", font);
+ return -1;
+ }
+ imlib_context_set_font(ci->fn);
+ imlib_context_set_direction(IMLIB_TEXT_TO_RIGHT);
+
+ if (color) {
+ char buff[256];
+ int done = 0;
+
+ f = fopen("/usr/lib/X11/rgb.txt", "r");
+ if (!f) {
+ fprintf(stderr, "Failed to find rgb.txt\n");
+ return -1;
+ }
+ while (fgets(buff, sizeof(buff), f)) {
+ int r, g, b;
+ char colname[80];
+
+ if (sscanf(buff, "%d %d %d %64s", &r, &g, &b, colname) == 4 &&
+ strcasecmp(colname, color) == 0) {
+ ci->r = r;
+ ci->g = g;
+ ci->b = b;
+ /* fprintf(stderr, "%s -> %d,%d,%d\n", colname, r, g, b); */
+ done = 1;
+ break;
+ }
+ }
+ fclose(f);
+ if (!done) {
+ fprintf(stderr, "Unable to find color '%s' in rgb.txt\n", color);
+ return -1;
+ }
+ }
+ imlib_context_set_color(ci->r, ci->g, ci->b, 255);
+ return 0;
+}
+
+static Imlib_Image get_cached_image(ContextInfo *ci, int width, int height)
+{
+ CachedImage *cache;
+
+ for (cache = ci->cache; cache; cache = cache->next) {
+ if (width == cache->width && height == cache->height)
+ return cache->image;
+ }
+
+ return NULL;
+}
+
+static void put_cached_image(ContextInfo *ci, Imlib_Image image, int width, int height)
+{
+ CachedImage *cache = av_mallocz(sizeof(*cache));
+
+ cache->image = image;
+ cache->width = width;
+ cache->height = height;
+ cache->next = ci->cache;
+ ci->cache = cache;
+}
+
+void Process(void *ctx, AVPicture *picture, enum PixelFormat pix_fmt, int width, int height, INT64 pts)
+{
+ ContextInfo *ci = (ContextInfo *) ctx;
+ AVPicture picture1;
+ Imlib_Image image;
+ DATA32 *data;
+
+ image = get_cached_image(ci, width, height);
+
+ if (!image) {
+ image = imlib_create_image(width, height);
+ put_cached_image(ci, image, width, height);
+ }
+
+ imlib_context_set_image(image);
+ data = imlib_image_get_data();
+
+ if (pix_fmt != PIX_FMT_BGRA32) {
+ avpicture_fill(&picture1, (UINT8 *) data, PIX_FMT_BGRA32, width, height);
+ if (img_convert(&picture1, PIX_FMT_BGRA32,
+ picture, pix_fmt, width, height) < 0) {
+ goto done;
+ }
+ } else {
+ av_abort();
+ }
+
+ imlib_image_set_has_alpha(0);
+
+ {
+ int wid, hig, h_a, v_a;
+ char buff[1000];
+ char tbuff[1000];
+ char *tbp = ci->text;
+ time_t now = time(0);
+ char *p, *q;
+ int x, y;
+
+ if (ci->file) {
+ int fd = open(ci->file, O_RDONLY);
+
+ if (fd < 0) {
+ tbp = "[File not found]";
+ } else {
+ int l = read(fd, tbuff, sizeof(tbuff) - 1);
+
+ if (l >= 0) {
+ tbuff[l] = 0;
+ tbp = tbuff;
+ } else {
+ tbp = "[I/O Error]";
+ }
+ close(fd);
+ }
+ }
+
+ strftime(buff, sizeof(buff), tbp, localtime(&now));
+
+ x = ci->x;
+ y = ci->y;
+
+ for (p = buff; p; p = q) {
+ q = strchr(p, '\n');
+ if (q)
+ *q++ = 0;
+
+ imlib_text_draw_with_return_metrics(x, y, p, &wid, &hig, &h_a, &v_a);
+ y += v_a;
+ }
+ }
+
+ if (pix_fmt != PIX_FMT_BGRA32) {
+ if (img_convert(picture, pix_fmt,
+ &picture1, PIX_FMT_BGRA32, width, height) < 0) {
+ }
+ }
+
+done:
+ ;
+}
+
+/* To ensure correct typing */
+FrameHookConfigureFn ConfigureFn = Configure;
+FrameHookProcessFn ProcessFn = Process;
--- /dev/null
+/*
+ * Null Video Hook
+ * Copyright (c) 2002 Philip Gladstone
+ *
+ * This library 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 of the License, or (at your option) any later version.
+ *
+ * This library 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 this library; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+#include <stdio.h>
+
+#include "framehook.h"
+
+typedef struct {
+ int dummy;
+} ContextInfo;
+
+
+int Configure(void **ctxp, int argc, char *argv[])
+{
+ fprintf(stderr, "Called with argc=%d\n", argc);
+
+ *ctxp = av_mallocz(sizeof(ContextInfo));
+ return 0;
+}
+
+void Process(void *ctx, AVPicture *picture, enum PixelFormat pix_fmt, int width, int height, INT64 pts)
+{
+ ContextInfo *ci = (ContextInfo *) ctx;
+ char *buf = 0;
+ AVPicture picture1;
+ AVPicture *pict = picture;
+
+ (void) ci;
+
+ if (pix_fmt != PIX_FMT_RGB24) {
+ int size;
+
+ size = avpicture_get_size(PIX_FMT_RGB24, width, height);
+ buf = av_malloc(size);
+
+ avpicture_fill(&picture1, buf, PIX_FMT_RGB24, width, height);
+ if (img_convert(&picture1, PIX_FMT_RGB24,
+ picture, pix_fmt, width, height) < 0) {
+ av_free(buf);
+ return;
+ }
+ pict = &picture1;
+ }
+
+ /* Insert filter code here */
+
+ if (pix_fmt != PIX_FMT_RGB24) {
+ if (img_convert(picture, pix_fmt,
+ &picture1, PIX_FMT_RGB24, width, height) < 0) {
+ }
+ }
+
+ av_free(buf);
+}
+
+/* To ensure correct typing */
+FrameHookConfigureFn ConfigureFn = Configure;
+FrameHookProcessFn ProcessFn = Process;
projects / platform / upstream / libav.git / commitdiff