Electronic Arts demuxer: support TGQ video tags

[ffmpeg] / libavformat / avio.c

diff --git a/libavformat/avio.c b/libavformat/avio.c
index b6478c4f3b717f0514d23b23d4f53dee3437f451..5809c40479200be4d15c18342428a88cefd4a0e8 100644 (file)
--- a/libavformat/avio.c
+++ b/libavformat/avio.c
@@ -18,9 +18,11 @@
  * License along with FFmpeg; if not, write to the Free Software
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  */
+
+#include "libavutil/avstring.h"
+#include "libavcodec/opt.h"
+#include "os_support.h"
 #include "avformat.h"
-#include "avstring.h"
-#include "opt.h"
 
 #if LIBAVFORMAT_VERSION_MAJOR >= 53
 /** @name Logging context. */
@@ -58,41 +60,12 @@ int register_protocol(URLProtocol *protocol)
     return 0;
 }
 
-int url_open(URLContext **puc, const char *filename, int flags)
+int url_open_protocol (URLContext **puc, struct URLProtocol *up,
+                       const char *filename, int flags)
 {
     URLContext *uc;
-    URLProtocol *up;
-    const char *p;
-    char proto_str[128], *q;
     int err;
 
-    p = filename;
-    q = proto_str;
-    while (*p != '\0' && *p != ':') {
-        /* protocols can only contain alphabetic chars */
-        if (!isalpha(*p))
-            goto file_proto;
-        if ((q - proto_str) < sizeof(proto_str) - 1)
-            *q++ = *p;
-        p++;
-    }
-    /* if the protocol has length 1, we consider it is a dos drive */
-    if (*p == '\0' || (q - proto_str) <= 1) {
-    file_proto:
-        strcpy(proto_str, "file");
-    } else {
-        *q = '\0';
-    }
-
-    up = first_protocol;
-    while (up != NULL) {
-        if (!strcmp(proto_str, up->name))
-            goto found;
-        up = up->next;
-    }
-    err = AVERROR(ENOENT);
-    goto fail;
- found:
     uc = av_malloc(sizeof(URLContext) + strlen(filename) + 1);
     if (!uc) {
         err = AVERROR(ENOMEM);
@@ -113,6 +86,12 @@ int url_open(URLContext **puc, const char *filename, int flags)
         *puc = NULL;
         return err;
     }
+
+    //We must be carefull here as url_seek() could be slow, for example for http
+    if(   (flags & (URL_WRONLY | URL_RDWR))
+       || !strcmp(up->name, "file"))
+        if(!uc->is_streamed && url_seek(uc, 0, SEEK_SET) < 0)
+            uc->is_streamed= 1;
     *puc = uc;
     return 0;
  fail:
@@ -120,6 +99,40 @@ int url_open(URLContext **puc, const char *filename, int flags)
     return err;
 }
 
+int url_open(URLContext **puc, const char *filename, int flags)
+{
+    URLProtocol *up;
+    const char *p;
+    char proto_str[128], *q;
+
+    p = filename;
+    q = proto_str;
+    while (*p != '\0' && *p != ':') {
+        /* protocols can only contain alphabetic chars */
+        if (!isalpha(*p))
+            goto file_proto;
+        if ((q - proto_str) < sizeof(proto_str) - 1)
+            *q++ = *p;
+        p++;
+    }
+    /* if the protocol has length 1, we consider it is a dos drive */
+    if (*p == '\0' || is_dos_path(filename)) {
+    file_proto:
+        strcpy(proto_str, "file");
+    } else {
+        *q = '\0';
+    }
+
+    up = first_protocol;
+    while (up != NULL) {
+        if (!strcmp(proto_str, up->name))
+            return url_open_protocol (puc, up, filename, flags);
+        up = up->next;
+    }
+    *puc = NULL;
+    return AVERROR(ENOENT);
+}
+
 int url_read(URLContext *h, unsigned char *buf, int size)
 {
     int ret;
@@ -141,9 +154,9 @@ int url_write(URLContext *h, unsigned char *buf, int size)
     return ret;
 }
 
-offset_t url_seek(URLContext *h, offset_t pos, int whence)
+int64_t url_seek(URLContext *h, int64_t pos, int whence)
 {
-    offset_t ret;
+    int64_t ret;
 
     if (!h->prot->url_seek)
         return AVERROR(EPIPE);
@@ -171,9 +184,9 @@ int url_exist(const char *filename)
     return 1;
 }
 
-offset_t url_filesize(URLContext *h)
+int64_t url_filesize(URLContext *h)
 {
-    offset_t pos, size;
+    int64_t pos, size;
 
     size= url_seek(h, 0, AVSEEK_SIZE);
     if(size<0){
@@ -216,7 +229,7 @@ int av_url_read_pause(URLContext *h, int pause)
     return h->prot->url_read_pause(h, pause);
 }
 
-offset_t av_url_read_seek(URLContext *h,
+int64_t av_url_read_seek(URLContext *h,
         int stream_index, int64_t timestamp, int flags)
 {
     if (!h->prot->url_read_seek)