renamed libav to libavformat

Originally committed as revision 1276 to svn://svn.ffmpeg.org/ffmpeg/trunk

1 files changed, 153 insertions, 0 deletions

diff --git a/libavformat/avio.h b/libavformat/avio.h
new file mode 100644
index 0000000000..541eff5ae0
--- /dev/null
+++ b/libavformat/avio.h
@@ -0,0 +1,153 @@
+#ifndef AVIO_H
+#define AVIO_H
+
+/* output byte stream handling */
+
+typedef INT64 offset_t;
+
+/* unbuffered I/O */
+
+struct URLContext {
+    struct URLProtocol *prot;
+    int flags;        
+    int is_streamed;  /* true if streamed (no seek possible), default = false */
+    int max_packet_size;  /* if non zero, the stream is packetized with this max packet size */
+    void *priv_data;
+};
+
+typedef struct URLContext URLContext;
+
+typedef struct URLPollEntry {
+    URLContext *handle;
+    int events;
+    int revents;
+} URLPollEntry;
+
+#define URL_RDONLY 0
+#define URL_WRONLY 1
+#define URL_RDWR   2
+
+int url_open(URLContext **h, const char *filename, int flags);
+int url_read(URLContext *h, unsigned char *buf, int size);
+int url_write(URLContext *h, unsigned char *buf, int size);
+offset_t url_seek(URLContext *h, offset_t pos, int whence);
+int url_close(URLContext *h);
+int url_exist(const char *filename);
+offset_t url_filesize(URLContext *h);
+int url_get_max_packet_size(URLContext *h);
+/* not implemented */
+int url_poll(URLPollEntry *poll_table, int n, int timeout);
+
+typedef struct URLProtocol {
+    const char *name;
+    int (*url_open)(URLContext *h, const char *filename, int flags);
+    int (*url_read)(URLContext *h, unsigned char *buf, int size);
+    int (*url_write)(URLContext *h, unsigned char *buf, int size);
+    offset_t (*url_seek)(URLContext *h, offset_t pos, int whence);
+    int (*url_close)(URLContext *h);
+    struct URLProtocol *next;
+} URLProtocol;
+
+extern URLProtocol *first_protocol;
+
+int register_protocol(URLProtocol *protocol);
+
+typedef struct {
+    unsigned char *buffer;
+    int buffer_size;
+    unsigned char *buf_ptr, *buf_end;
+    void *opaque;
+    int (*read_packet)(void *opaque, UINT8 *buf, int buf_size);
+    void (*write_packet)(void *opaque, UINT8 *buf, int buf_size);
+    int (*seek)(void *opaque, offset_t offset, int whence);
+    offset_t pos; /* position in the file of the current buffer */
+    int must_flush; /* true if the next seek should flush */
+    int eof_reached; /* true if eof reached */
+    int write_flag;  /* true if open for writing */
+    int is_streamed;
+    int max_packet_size;
+} ByteIOContext;
+
+int init_put_byte(ByteIOContext *s,
+                  unsigned char *buffer,
+                  int buffer_size,
+                  int write_flag,
+                  void *opaque,
+                  int (*read_packet)(void *opaque, UINT8 *buf, int buf_size),
+                  void (*write_packet)(void *opaque, UINT8 *buf, int buf_size),
+                  int (*seek)(void *opaque, offset_t offset, int whence));
+
+void put_byte(ByteIOContext *s, int b);
+void put_buffer(ByteIOContext *s, const unsigned char *buf, int size);
+void put_le64(ByteIOContext *s, UINT64 val);
+void put_be64(ByteIOContext *s, UINT64 val);
+void put_le32(ByteIOContext *s, unsigned int val);
+void put_be32(ByteIOContext *s, unsigned int val);
+void put_le16(ByteIOContext *s, unsigned int val);
+void put_be16(ByteIOContext *s, unsigned int val);
+void put_tag(ByteIOContext *s, const char *tag);
+
+void put_be64_double(ByteIOContext *s, double val);
+void put_strz(ByteIOContext *s, const char *buf);
+
+offset_t url_fseek(ByteIOContext *s, offset_t offset, int whence);
+void url_fskip(ByteIOContext *s, offset_t offset);
+offset_t url_ftell(ByteIOContext *s);
+int url_feof(ByteIOContext *s);
+
+#define URL_EOF (-1)
+int url_fgetc(ByteIOContext *s);
+int url_fprintf(ByteIOContext *s, const char *fmt, ...);
+char *url_fgets(ByteIOContext *s, char *buf, int buf_size);
+
+void put_flush_packet(ByteIOContext *s);
+
+int get_buffer(ByteIOContext *s, unsigned char *buf, int size);
+int get_byte(ByteIOContext *s);
+unsigned int get_le32(ByteIOContext *s);
+UINT64 get_le64(ByteIOContext *s);
+unsigned int get_le16(ByteIOContext *s);
+
+double get_be64_double(ByteIOContext *s);
+char *get_strz(ByteIOContext *s, char *buf, int maxlen);
+unsigned int get_be16(ByteIOContext *s);
+unsigned int get_be32(ByteIOContext *s);
+UINT64 get_be64(ByteIOContext *s);
+
+static inline int url_is_streamed(ByteIOContext *s)
+{
+    return s->is_streamed;
+}
+
+int url_fdopen(ByteIOContext *s, URLContext *h);
+int url_setbufsize(ByteIOContext *s, int buf_size);
+int url_fopen(ByteIOContext *s, const char *filename, int flags);
+int url_fclose(ByteIOContext *s);
+URLContext *url_fileno(ByteIOContext *s);
+int url_fget_max_packet_size(ByteIOContext *s);
+
+int url_open_buf(ByteIOContext *s, UINT8 *buf, int buf_size, int flags);
+int url_close_buf(ByteIOContext *s);
+
+int url_open_dyn_buf(ByteIOContext *s);
+int url_open_dyn_packet_buf(ByteIOContext *s, int max_packet_size);
+int url_close_dyn_buf(ByteIOContext *s, UINT8 **pbuffer);
+
+/* file.c */
+extern URLProtocol file_protocol;
+extern URLProtocol pipe_protocol;
+
+/* udp.c */
+extern URLProtocol udp_protocol;
+int udp_set_remote_url(URLContext *h, const char *uri);
+int udp_get_local_port(URLContext *h);
+int udp_get_file_handle(URLContext *h);
+
+/* tcp.c  */
+extern URLProtocol tcp_protocol;
+
+/* http.c */
+extern URLProtocol http_protocol;
+
+#endif
+