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Diffstat (limited to '')
| -rw-r--r-- | Game/Code/lib/ffmpeg/avio.pas | 241 |
1 files changed, 241 insertions, 0 deletions
diff --git a/Game/Code/lib/ffmpeg/avio.pas b/Game/Code/lib/ffmpeg/avio.pas new file mode 100644 index 00000000..20275ab7 --- /dev/null +++ b/Game/Code/lib/ffmpeg/avio.pas @@ -0,0 +1,241 @@ + (*
+ * unbuffered io for ffmpeg system
+ * copyright (c) 2001 Fabrice Bellard
+ *
+ * This library 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 of the License, or (at your option) any later version.
+ *
+ * This library 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 this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ *)
+unit avio;
+
+interface
+
+uses
+ windows;
+
+const
+ av__format = 'avformat-50.dll';
+
+ URL_RDONLY = 0;
+ URL_WRONLY = 1;
+ URL_RDWR = 2;
+
+(* output byte stream handling *)
+
+type
+ offset_t = int64;
+ int = integer;
+
+(* unbuffered I/O *)
+ PURLProtocol = ^TURLProtocol;
+ PURLContext = ^TURLContext;
+ TURLContext = record
+ prot: PURLProtocol;
+ flags: int;
+ is_streamed: int; //* true if streamed (no seek possible), default = false */
+ max_packet_size: int; //* if non zero, the stream is packetized with this max packet size */
+ priv_data: pointer;
+ filename: array [0..0] of char; (* specified filename *)
+ end;
+
+ PURLPollEntry = ^TURLPollEntry;
+ TURLPollEntry = record
+ handle: PURLContext;
+ events: integer;
+ revents: integer;
+ end;
+
+ TURLProtocol = record
+ name: pchar;
+ url_open: function (h: PURLContext; const filename: pchar; flags: integer): integer; cdecl;
+ url_read: function (h: PURLContext; buf: pchar; size: integer): integer; cdecl;
+ url_write: function (h: PURLContext; buf: pchar; size: integer): integer; cdecl;
+ url_seek: function (h: PURLContext; pos: int64; whence: integer): int64; cdecl;
+ url_close: function (h: PURLContext): integer; cdecl;
+ next: PURLProtocol;
+ end;
+
+ PByteIOContext = ^TByteIOContext;
+ TByteIOContext = record
+ buffer: pchar;
+ buffer_size: integer;
+ buf_ptr: pchar;
+ buf_end: pchar;
+ opaque: pointer;
+ read_packet: function (opaque: pointer; buf: pchar; buf_size: integer): integer; cdecl;
+ write_packet: function (opaque: pointer; buf: pchar; buf_size: integer): integer; cdecl;
+ seek: function (opaque: pointer; offset: int64; whence: integer): int64; cdecl;
+ pos: int64; (* position in the file of the current buffer *)
+ must_flush: integer; (* true if the next seek should flush *)
+ eof_reached: integer; (* true if eof reached *)
+ write_flag: integer; (* true if open for writing *)
+ is_streamed: integer;
+ max_packet_size: integer;
+ checksum: longword;
+ checksum_ptr: pchar;
+ update_checksum: function (checksum: cardinal; const buf: pchar; size: cardinal): LongWord; cdecl;
+ error: integer; ///< contains the error code or 0 if no error happened
+ end;
+
+ function url_open(h: PPointer; const filename: pchar; flags: integer): integer;
+ cdecl; external av__format;
+ function url_read (h: PURLContext; buf: pchar; size: integer): integer;
+ cdecl; external av__format;
+ function url_write (h: PURLContext; buf: pchar; size: integer): integer;
+ cdecl; external av__format;
+ function url_seek (h: PURLContext; pos: int64; whence: integer): int64;
+ cdecl; external av__format;
+ function url_close (h: PURLContext): integer;
+ cdecl; external av__format;
+ function url_exist(const filename: pchar): integer;
+ cdecl; external av__format;
+ function url_filesize (h: PURLContext): int64;
+ cdecl; external av__format;
+ function url_get_max_packet_size(h: PURLContext): integer;
+ cdecl; external av__format;
+ procedure url_get_filename(h: PURLContext; buf: pchar; buf_size: integer);
+ cdecl; external av__format;
+
+(* the callback is called in blocking functions to test regulary if
+ asynchronous interruption is needed. -EINTR is returned in this
+ case by the interrupted function. 'NULL' means no interrupt
+ callback is given. *)
+ procedure url_set_interrupt_cb (interrupt_cb: pinteger);
+ cdecl; external av__format;
+
+(* not implemented *)
+//int url_poll(URLPollEntry *poll_table, int n, int timeout);
+
+ function register_protocol (protocol: PURLProtocol): integer;
+ cdecl; external av__format;
+
+ function init_put_byte(s: PByteIOContext;
+ buffer: pchar;
+ buffer_size: integer; write_flag: integer;
+ opaque: pointer;
+ read_packet: pointer; //int (*read_packet)(void *opaque, uint8_t *buf, int buf_size),
+ write_packet: pointer; //int (*write_packet)(void *opaque, uint8_t *buf, int buf_size),
+ seek: pointer //offset_t (*seek)(void *opaque, offset_t offset, int whence)
+ ): integer;
+ cdecl; external av__format;
+ procedure put_byte(s: PByteIOContext; b: integer);
+ cdecl; external av__format;
+ procedure put_buffer (s: PByteIOContext; const buf: pchar; size: integer);
+ cdecl; external av__format;
+ procedure put_le64(s: PByteIOContext; val: int64);
+ cdecl; external av__format;
+ procedure put_be64(s: PByteIOContext; val: int64);
+ cdecl; external av__format;
+ procedure put_le32(s: PByteIOContext; val: cardinal);
+ cdecl; external av__format;
+ procedure put_be32(s: PByteIOContext; val: cardinal);
+ cdecl; external av__format;
+ procedure put_be24(s: PByteIOContext; val: cardinal);
+ cdecl; external av__format;
+ procedure put_le16(s: PByteIOContext; val: cardinal);
+ cdecl; external av__format;
+ procedure put_be16(s: PByteIOContext; val: cardinal);
+ cdecl; external av__format;
+ procedure put_tag(s: PByteIOContext; const tag: pchar);
+ cdecl; external av__format;
+
+ procedure put_strz(s: PByteIOContext; const buf: pchar);
+ cdecl; external av__format;
+
+ function url_fseek(s: PByteIOContext; offset: int64; whence: integer): int64;
+ cdecl; external av__format;
+ procedure url_fskip(s: PByteIOContext; offset: int64);
+ cdecl; external av__format;
+ function url_ftell(s: PByteIOContext): int64;
+ cdecl; external av__format;
+ function url_fsize(s: PByteIOContext): int64;
+ cdecl; external av__format;
+ function url_feof(s: PByteIOContext): integer;
+ cdecl; external av__format;
+ function url_ferror(s: PByteIOContext): integer;
+ cdecl; external av__format;
+
+ procedure put_flush_packet (s: PByteIOContext);
+ cdecl; external av__format;
+ function get_buffer(s: PByteIOContext; buf: pchar; size: integer): integer;
+ cdecl; external av__format;
+ function get_partial_buffer(s: PByteIOContext; buf: pchar; size: integer): integer;
+ cdecl; external av__format;
+ function get_byte(s: PByteIOContext): integer;
+ cdecl; external av__format;
+ function get_le32(s: PByteIOContext): cardinal;
+ cdecl; external av__format;
+ function get_le64(s: PByteIOContext): int64;
+ cdecl; external av__format;
+ function get_le16(s: PByteIOContext): cardinal;
+ cdecl; external av__format;
+
+ function get_strz(s: PByteIOContext; buf: pchar; maxlen: integer): pchar;
+ cdecl; external av__format;
+ function get_be16(s: PByteIOContext): cardinal;
+ cdecl; external av__format;
+ function get_be24(s: PByteIOContext): cardinal;
+ cdecl; external av__format;
+ function get_be32(s: PByteIOContext): cardinal;
+ cdecl; external av__format;
+ function get_be64(s: PByteIOContext): int64;
+ cdecl; external av__format;
+
+ function url_is_streamed(s: PByteIOContext): integer;
+
+ function url_fdopen (s: PByteIOContext; h: PURLContext): integer;
+ cdecl; external av__format;
+ function url_setbufsize (s: PByteIOContext; buf_size: integer): integer;
+ cdecl; external av__format;
+ function url_fopen(s: PByteIOContext; const filename: pchar; flags: integer): integer;
+ cdecl; external av__format;
+ function url_fclose(s: PByteIOContext): integer;
+ cdecl; external av__format;
+
+ function url_fileno(s: PByteIOContext): PURLContext;
+ cdecl; external av__format;
+ function url_fget_max_packet_size (s: PByteIOContext): integer;
+ cdecl; external av__format;
+ function url_open_buf(s: PByteIOContext; buf: pchar; buf_size: integer; flags: integer): integer;
+ cdecl; external av__format;
+ function url_close_buf(s: PByteIOContext): integer;
+ cdecl; external av__format;
+
+ function url_open_dyn_buf(s: PByteIOContext): integer;
+ cdecl; external av__format;
+ function url_open_dyn_packet_buf(s: PByteIOContext; max_packet_size: integer): integer;
+ cdecl; external av__format;
+ function url_close_dyn_buf(s: PByteIOContext; pbuffer:PPointer): integer;
+ cdecl; external av__format;
+
+ function get_checksum(s: PByteIOContext): cardinal;
+ cdecl; external av__format;
+
+ procedure init_checksum (s: PByteIOContext; update_checksum: pointer; checksum: cardinal);
+ cdecl; external av__format;
+
+ function udp_set_remote_url(h: PURLContext; const uri: pchar): integer;
+ cdecl; external av__format;
+ function udp_get_local_port(h: PURLContext): integer;
+ cdecl; external av__format;
+ function udp_get_file_handle(h: PURLContext): integer;
+ cdecl; external av__format;
+
+implementation
+
+function url_is_streamed(s: PByteIOContext): integer;
+begin
+ Result := s^.is_streamed;
+end;
+
+end.
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