patched ffmpeg nov 2

source/patched-ffmpeg-mt/libavdevice/vfwcap.c

 /*
  * VFW capture interface
  * Copyright (c) 2006-2008 Ramiro Polla
  *
  * 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.
@@ skipping 230 matching lines @@
     int devnum;
     int bisize;
     BITMAPINFO *bi;
     CAPTUREPARMS cparms;
     DWORD biCompression;
     WORD biBitCount;
     int width;
     int height;
     int ret;
 
+    if (!strcmp(s->filename, "list")) {
+        for (devnum = 0; devnum <= 9; devnum++) {
+            char driver_name[256];
+            char driver_ver[256];
+            ret = capGetDriverDescription(devnum,
+                                          driver_name, sizeof(driver_name),
+                                          driver_ver, sizeof(driver_ver));
+            if (ret) {
+                av_log(s, AV_LOG_INFO, "Driver %d\n", devnum);
+                av_log(s, AV_LOG_INFO, " %s\n", driver_name);
+                av_log(s, AV_LOG_INFO, " %s\n", driver_ver);
+            }
+        }
+        return AVERROR(EIO);
+    }
+
     if(!ap->time_base.den) {
         av_log(s, AV_LOG_ERROR, "A time base must be specified.\n");
         return AVERROR(EIO);
     }
 
     ctx->hwnd = capCreateCaptureWindow(NULL, 0, 0, 0, 0, 0, HWND_MESSAGE, 0);
     if(!ctx->hwnd) {
         av_log(s, AV_LOG_ERROR, "Could not create capture window.\n");
         return AVERROR(EIO);
     }
@@ skipping 178 matching lines @@
 AVInputFormat vfwcap_demuxer = {
     "vfwcap",
     NULL_IF_CONFIG_SMALL("VFW video capture"),
     sizeof(struct vfw_ctx),
     NULL,
     vfw_read_header,
     vfw_read_packet,
     vfw_read_close,
     .flags = AVFMT_NOFILE,
 };