@@ -284,6 +284,7 @@ OBJS-$(CONFIG_FILE_PROTOCOL)             += file.o

 OBJS-$(CONFIG_GOPHER_PROTOCOL)           += gopher.o

 OBJS-$(CONFIG_HTTP_PROTOCOL)             += http.o httpauth.o

 OBJS-$(CONFIG_MMST_PROTOCOL)             += mmst.o asf.o

+OBJS-$(CONFIG_MD5_PROTOCOL)              += md5proto.o

 OBJS-$(CONFIG_PIPE_PROTOCOL)             += file.o

 # external or internal rtmp

@@ -223,6 +223,7 @@ void av_register_all(void)

     REGISTER_PROTOCOL (GOPHER, gopher);

     REGISTER_PROTOCOL (HTTP, http);

     REGISTER_PROTOCOL (MMST, mmst);

+    REGISTER_PROTOCOL (MD5,  md5);

     REGISTER_PROTOCOL (PIPE, pipe);

     REGISTER_PROTOCOL (RTMP, rtmp);

 #if CONFIG_LIBRTMP

new file mode 100644

@@ -0,0 +1,92 @@

+/*

+ * Copyright (c) 2010 Mans Rullgard

+ *

+ * 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.

+ *

+ * 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 FFmpeg; if not, write to the Free Software

+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA

+ */

+

+#include <stdio.h>

+#include "libavutil/avstring.h"

+#include "libavutil/md5.h"

+#include "libavutil/mem.h"

+#include "libavutil/error.h"

+#include "avformat.h"

+#include "avio.h"

+

+#define PRIV_SIZE 128

+

+static int md5_open(URLContext *h, const char *filename, int flags)

+{

+    if (PRIV_SIZE < av_md5_size) {

+        av_log(NULL, AV_LOG_ERROR, "Insuffient size for MD5 context\n");

+        return -1;

+    }

+

+    if (flags != URL_WRONLY)

+        return AVERROR(EINVAL);

+

+    av_md5_init(h->priv_data);

+

+    return 0;

+}

+

+static int md5_write(URLContext *h, const unsigned char *buf, int size)

+{

+    av_md5_update(h->priv_data, buf, size);

+    return size;

+}

+

+static int md5_close(URLContext *h)

+{

+    const char *filename = h->filename;

+    uint8_t md5[16], buf[64];

+    URLContext *out;

+    int i, err = 0;

+

+    av_md5_final(h->priv_data, md5);

+    for (i = 0; i < sizeof(md5); i++)

+        snprintf(buf + i*2, 3, "%02x", md5[i]);

+    buf[i*2] = '\n';

+

+    av_strstart(filename, "md5:", &filename);

+

+    if (*filename) {

+        err = url_open(&out, filename, URL_WRONLY);

+        if (err)

+            return err;

+        err = url_write(out, buf, i*2+1);

+        url_close(out);

+    } else {

+        if (fwrite(buf, 1, i*2+1, stdout) < i*2+1)

+            err = AVERROR(errno);

+    }

+

+    return err;

+}

+

+static int md5_get_handle(URLContext *h)

+{

+    return (intptr_t)h->priv_data;

+}

+

+URLProtocol md5_protocol = {

+    .name                = "md5",

+    .url_open            = md5_open,

+    .url_write           = md5_write,

+    .url_close           = md5_close,

+    .url_get_file_handle = md5_get_handle,

+    .priv_data_size      = PRIV_SIZE,

+};