* VFW capture interface
* Copyright (c) 2006-2008 Ramiro Polla
*
- * This file is part of Libav.
+ * This file is part of FFmpeg.
*
- * Libav is free software; you can redistribute it and/or
+ * 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.
*
- * Libav is distributed in the hope that it will be useful,
+ * 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 Libav; if not, write to the Free Software
+ * License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
-#include "libavformat/avformat.h"
#include "libavformat/internal.h"
#include "libavutil/log.h"
#include "libavutil/opt.h"
#include "libavutil/parseutils.h"
#include <windows.h>
#include <vfw.h>
+#include "avdevice.h"
/* Defines for VFW missing from MinGW.
* Remove this when MinGW incorporates them. */
#define HWND_MESSAGE ((HWND)-3)
-#define BI_RGB 0
-
/* End of missing MinGW defines */
struct vfw_ctx {
AVStream *st;
int devnum;
int bisize;
- BITMAPINFO *bi;
+ BITMAPINFO *bi = NULL;
CAPTUREPARMS cparms;
DWORD biCompression;
WORD biBitCount;
(LPARAM) videostream_cb);
if(!ret) {
av_log(s, AV_LOG_ERROR, "Could not set video stream callback.\n");
- goto fail_io;
+ goto fail;
}
SetWindowLongPtr(ctx->hwnd, GWLP_USERDATA, (LONG_PTR) s);
/* Set video format */
bisize = SendMessage(ctx->hwnd, WM_CAP_GET_VIDEOFORMAT, 0, 0);
if(!bisize)
- goto fail_io;
+ goto fail;
bi = av_malloc(bisize);
if(!bi) {
vfw_read_close(s);
}
ret = SendMessage(ctx->hwnd, WM_CAP_GET_VIDEOFORMAT, bisize, (LPARAM) bi);
if(!ret)
- goto fail_bi;
+ goto fail;
dump_bih(s, &bi->bmiHeader);
+ ret = av_parse_video_rate(&framerate_q, ctx->framerate);
+ if (ret < 0) {
+ av_log(s, AV_LOG_ERROR, "Could not parse framerate '%s'.\n", ctx->framerate);
+ goto fail;
+ }
if (ctx->video_size) {
ret = av_parse_video_size(&bi->bmiHeader.biWidth, &bi->bmiHeader.biHeight, ctx->video_size);
if (ret < 0) {
av_log(s, AV_LOG_ERROR, "Couldn't parse video size.\n");
- goto fail_bi;
+ goto fail;
}
}
ret = SendMessage(ctx->hwnd, WM_CAP_SET_VIDEOFORMAT, bisize, (LPARAM) bi);
if(!ret) {
av_log(s, AV_LOG_ERROR, "Could not set Video Format.\n");
- goto fail_bi;
+ goto fail;
}
biCompression = bi->bmiHeader.biCompression;
biBitCount = bi->bmiHeader.biBitCount;
- av_free(bi);
-
/* Set sequence setup */
ret = SendMessage(ctx->hwnd, WM_CAP_GET_SEQUENCE_SETUP, sizeof(cparms),
(LPARAM) &cparms);
if(!ret)
- goto fail_io;
+ goto fail;
dump_captureparms(s, &cparms);
ret = SendMessage(ctx->hwnd, WM_CAP_SET_SEQUENCE_SETUP, sizeof(cparms),
(LPARAM) &cparms);
if(!ret)
- goto fail_io;
+ goto fail;
codec = st->codec;
- codec->time_base = (AVRational){framerate_q.den, framerate_q.num};
+ codec->time_base = av_inv_q(framerate_q);
codec->codec_type = AVMEDIA_TYPE_VIDEO;
codec->width = bi->bmiHeader.biWidth;
codec->height = bi->bmiHeader.biHeight;
}
}
+ av_freep(&bi);
+
avpriv_set_pts_info(st, 32, 1, 1000);
ctx->mutex = CreateMutex(NULL, 0, NULL);
if(!ctx->mutex) {
av_log(s, AV_LOG_ERROR, "Could not create Mutex.\n" );
- goto fail_io;
+ goto fail;
}
ctx->event = CreateEvent(NULL, 1, 0, NULL);
if(!ctx->event) {
av_log(s, AV_LOG_ERROR, "Could not create Event.\n" );
- goto fail_io;
+ goto fail;
}
ret = SendMessage(ctx->hwnd, WM_CAP_SEQUENCE_NOFILE, 0, 0);
if(!ret) {
av_log(s, AV_LOG_ERROR, "Could not start capture sequence.\n" );
- goto fail_io;
+ goto fail;
}
return 0;
-fail_bi:
- av_free(bi);
-
-fail_io:
+fail:
+ av_freep(&bi);
vfw_read_close(s);
return AVERROR(EIO);
}