diff options
Diffstat (limited to 'cmake/src/lib/ffmpeg/avio.pas')
| -rw-r--r-- | cmake/src/lib/ffmpeg/avio.pas | 204 |
1 files changed, 179 insertions, 25 deletions
diff --git a/cmake/src/lib/ffmpeg/avio.pas b/cmake/src/lib/ffmpeg/avio.pas index dc0a330b..4863ee39 100644 --- a/cmake/src/lib/ffmpeg/avio.pas +++ b/cmake/src/lib/ffmpeg/avio.pas @@ -28,11 +28,11 @@ (* * Conversion of libavformat/avio.h * unbuffered I/O operations - * revision 16100, Sat Dec 13 13:39:13 2008 UTC - * update Tue, Jun 10 01:00:00 2009 UTC - * * @warning This file has to be considered an internal but installed * header, so it should not be directly included in your projects. + * + * update to + * Max. avformat version: 52.62.0, revision 23004, Tue May 11 19:29:00 2010 CET *) unit avio; @@ -70,6 +70,16 @@ const *) AVSEEK_SIZE = $10000; +{$IF LIBAVFORMAT_VERSION >= 52056000} // 52.56.0 + (** + * Oring this flag as into the "whence" parameter to a seek function causes it to + * seek by any means (like reopening and linear reading) or other normally unreasonble + * means that can be extreemly slow. + * This may be ignored by the seek code. + *) + AVSEEK_FORCE = $20000; +{$IFEND} + type TURLInterruptCB = function (): cint; cdecl; @@ -93,7 +103,7 @@ type is_streamed: cint; (**< true if streamed (no seek possible), default = false *) max_packet_size: cint; (**< if non zero, the stream is packetized with this max packet size *) priv_data: pointer; - filename: PAnsiChar; (**< specified filename *) + filename: PAnsiChar; (**< specified URL *) end; PPURLContext = ^PURLContext; @@ -106,16 +116,54 @@ type TURLProtocol = record name: PAnsiChar; +{$IF LIBAVFORMAT_VERSION < 52047000} // 52.47.0 url_open: function (h: PURLContext; filename: {const} PAnsiChar; flags: cint): cint; cdecl; +{$ELSE} + url_open: function (h: PURLContext; url: {const} PAnsiChar; flags: cint): cint; cdecl; +{$IFEND} + +(** + * Reads up to size bytes from the resource accessed by h, and stores + * the read bytes in buf. + * + * @return The number of bytes actually read, or a negative value + * corresponding to an AVERROR code in case of error. A value of zero + * indicates that it is not possible to read more from the accessed + * resource (except if the value of the size argument is also zero). + *) url_read: function (h: PURLContext; buf: PByteArray; size: cint): cint; cdecl; - url_read_complete: function (h: PURLContext; buf: PByteArray; size: cint): cint; cdecl; + +(** + * Read as many bytes as possible (up to size), calling the + * read function multiple times if necessary. + * Will also retry if the read function returns AVERROR(EAGAIN). + * This makes special short-read handling in applications + * unnecessary, if the return value is < size then it is + * certain there was either an error or the end of file was reached. + *) url_write: function (h: PURLContext; buf: PByteArray; size: cint): cint; cdecl; + +(** + * Changes the position that will be used by the next read/write + * operation on the resource accessed by h. + * + * @param pos specifies the new position to set + * @param whence specifies how pos should be interpreted, it must be + * one of SEEK_SET (seek from the beginning), SEEK_CUR (seek from the + * current position), SEEK_END (seek from the end), or AVSEEK_SIZE + * (return the filesize of the requested resource, pos is ignored). + * @return a negative value corresponding to an AVERROR code in case + * of failure, or the resulting file position, measured in bytes from + * the beginning of the file. You can use this feature together with + * SEEK_CUR to read the current file position. + *) url_seek: function (h: PURLContext; pos: cint64; whence: cint): cint64; cdecl; + url_close: function (h: PURLContext): cint; cdecl; next: PURLProtocol; {$IF (LIBAVFORMAT_VERSION >= 52001000) and (LIBAVFORMAT_VERSION < 52004000)} // 52.1.0 .. 52.4.0 - url_read_play: function (h: PURLContext): cint; - url_read_pause: function (h: PURLContext): cint; + url_read_play: function (h: PURLContext): cint; cdecl; + url_read_pause: function (h: PURLContext): cint; cdecl; {$IFEND} {$IF LIBAVFORMAT_VERSION >= 52004000} // 52.4.0 url_read_pause: function (h: PURLContext; pause: cint): cint; cdecl; @@ -124,6 +172,9 @@ type url_read_seek: function (h: PURLContext; stream_index: cint; timestamp: cint64; flags: cint): cint64; cdecl; {$IFEND} + {$IF LIBAVFORMAT_VERSION >= 52031000} // 52.31.0 + url_get_file_handle: function (h: PURLContext): cint; cdecl; + {$IFEND} end; (** @@ -168,31 +219,85 @@ type {$IF LIBAVFORMAT_VERSION >= 52021000} // 52.21.0 +(** + * Creates an URLContext for accessing to the resource indicated by + * URL, and opens it using the URLProtocol up. + * + * @param puc pointer to the location where, in case of success, the + * function puts the pointer to the created URLContext + * @param flags flags which control how the resource indicated by URL + * is to be opened + * @return 0 in case of success, a negative value corresponding to an + * AVERROR code in case of failure + *) function url_open_protocol(puc: PPURLContext; up: PURLProtocol; +{$IF LIBAVFORMAT_VERSION < 52047000} // 52.47.0 filename: {const} PAnsiChar; flags: cint): cint; +{$ELSE} + url: {const} PAnsiChar; flags: cint): cint; +{$IFEND} cdecl; external av__format; {$IFEND} + +(** + * Creates an URLContext for accessing to the resource indicated by + * url, and opens it. + * + * @param puc pointer to the location where, in case of success, the + * function puts the pointer to the created URLContext + * @param flags flags which control how the resource indicated by url + * is to be opened + * @return 0 in case of success, a negative value corresponding to an + * AVERROR code in case of failure + *) +{$IF LIBAVFORMAT_VERSION < 52047000} // 52.47.0 function url_open(h: PPointer; filename: {const} PAnsiChar; flags: cint): cint; +{$ELSE} +function url_open(h: PPointer; url: {const} PAnsiChar; flags: cint): cint; +{$IFEND} cdecl; external av__format; function url_read (h: PURLContext; buf: PByteArray; size: cint): cint; cdecl; external av__format; +{$IF LIBAVFORMAT_VERSION >= 52034000} // 52.34.0 +function url_read_complete (h: PURLContext; buf: PByteArray; size: cint): cint; cdecl; + cdecl; external av__format; +{$IFEND} function url_write (h: PURLContext; buf: PByteArray; size: cint): cint; cdecl; external av__format; function url_seek (h: PURLContext; pos: cint64; whence: cint): cint64; cdecl; external av__format; + +(** + * Closes the resource accessed by the URLContext h, and frees the + * memory used by it. + * + * @return a negative value if an error condition occurred, 0 + * otherwise + *) function url_close (h: PURLContext): cint; cdecl; external av__format; + +(** + * Returns a non-zero value if the resource indicated by url + * exists, 0 otherwise. + *) +{$IF LIBAVFORMAT_VERSION < 52047000} // 52.47.0 function url_exist(filename: {const} PAnsiChar): cint; +{$ELSE} +function url_exist(url: {const} PAnsiChar): cint; +{$IFEND} cdecl; external av__format; + function url_filesize (h: PURLContext): cint64; cdecl; external av__format; -{ + +(** * Return the file descriptor associated with this URL. For RTP, this * will return only the RTP file descriptor, not the RTCP file descriptor. * To get both, use rtp_get_file_handles(). * * @return the file descriptor associated with this URL, or <0 on error. -} + *) (* not implemented *) function url_get_file_handle(h: PURLContext): cint; cdecl; external av__format; @@ -264,30 +369,36 @@ var url_interrupt_cb: PURLInterruptCB; external av__format; **) -{ -* If protocol is NULL, returns the first registered protocol, -* if protocol is non-NULL, returns the next registered protocol after protocol, -* or NULL if protocol is the last one. -} {$IF LIBAVFORMAT_VERSION >= 52002000} // 52.2.0 +(** + * If protocol is NULL, returns the first registered protocol, + * if protocol is non-NULL, returns the next registered protocol after protocol, + * or NULL if protocol is the last one. + *) function av_protocol_next(p: PURLProtocol): PURLProtocol; cdecl; external av__format; {$IFEND} {$IF LIBAVFORMAT_VERSION <= 52028000} // 52.28.0 (** + * Registers the URLProtocol protocol. + *) +(** * @deprecated Use av_register_protocol() instead. *) -function register_protocol (protocol: PURLProtocol): cint; +function register_protocol(protocol: PURLProtocol): cint; cdecl; external av__format; +(** Alias for register_protocol() *) +function av_register_protocol(protocol: PURLProtocol): cint; + cdecl; external av__format name 'register_protocol'; {$ELSE} -function av_register_protocol (protocol: PURLProtocol): cint; +function av_register_protocol(protocol: PURLProtocol): cint; cdecl; external av__format; {$IFEND} type - TReadWriteFunc = function (opaque: Pointer; buf: PByteArray; buf_size: cint): cint; cdecl; - TSeekFunc = function (opaque: Pointer; offset: cint64; whence: cint): cint64; cdecl; + TReadWriteFunc = function(opaque: Pointer; buf: PByteArray; buf_size: cint): cint; cdecl; + TSeekFunc = function(opaque: Pointer; offset: cint64; whence: cint): cint64; cdecl; function init_put_byte(s: PByteIOContext; buffer: PByteArray; @@ -400,11 +511,10 @@ function url_fgets(s: PByteIOContext; buf: PAnsiChar; buf_size: cint): PAnsiChar procedure put_flush_packet (s: PByteIOContext); cdecl; external av__format; - (** * Reads size bytes from ByteIOContext into buf. - * @returns number of bytes read or AVERROR + * @return number of bytes read or AVERROR *) function get_buffer(s: PByteIOContext; buf: PByteArray; size: cint): cint; cdecl; external av__format; @@ -413,7 +523,7 @@ function get_buffer(s: PByteIOContext; buf: PByteArray; size: cint): cint; * Reads size bytes from ByteIOContext into buf. * This reads at most 1 packet. If that is not enough fewer bytes will be * returned. - * @returns number of bytes read or AVERROR + * @return number of bytes read or AVERROR *) function get_partial_buffer(s: PByteIOContext; buf: PByteArray; size: cint): cint; cdecl; external av__format; @@ -449,8 +559,17 @@ function ff_get_v(bc: PByteIOContext): cuint64; function url_is_streamed(s: PByteIOContext): cint; {$IFDEF HasInline}inline;{$ENDIF} -(** @note when opened as read/write, the buffers are only used for - writing *) +(** + * Creates and initializes a ByteIOContext for accessing the + * resource referenced by the URLContext h. + * @note When the URLContext h has been opened in read+write mode, the + * ByteIOContext can be used only for writing. + * + * @param s Used to return the pointer to the created ByteIOContext. + * In case of failure the pointed to value is set to NULL. + * @return 0 in case of success, a negative value corresponding to an + * AVERROR code in case of failure + *) {$IF LIBAVFORMAT_VERSION >= 52000000} // 52.0.0 function url_fdopen (var s: PByteIOContext; h: PURLContext): cint; {$ELSE} @@ -462,6 +581,7 @@ function url_fdopen (s: PByteIOContext; h: PURLContext): cint; function url_setbufsize (s: PByteIOContext; buf_size: cint): cint; cdecl; external av__format; +{$IF LIBAVFORMAT_VERSION_MAJOR < 53} {$IF LIBAVFORMAT_VERSION >= 51015000} // 51.15.0 (** Reset the buffer for reading or writing. * @note Will drop any data currently in the buffer without transmitting it. @@ -470,14 +590,48 @@ function url_setbufsize (s: PByteIOContext; buf_size: cint): cint; function url_resetbuf(s: PByteIOContext; flags: cint): cint; cdecl; external av__format; {$IFEND} +{$IFEND} -(** @note when opened as read/write, the buffers are only used for - writing *) +{$IF LIBAVFORMAT_VERSION >= 52061000} // 52.61.0 +(** + * Rewinds the ByteIOContext using the specified buffer containing the first buf_size bytes of the file. + * Used after probing to avoid seeking. + * Joins buf and s->buffer, taking any overlap into consideration. + * @note s->buffer must overlap with buf or they can't be joined and the function fails + * @note This function is NOT part of the public API + * + * @param s The read-only ByteIOContext to rewind + * @param buf The probe buffer containing the first buf_size bytes of the file + * @param buf_size The size of buf + * @return 0 in case of success, a negative value corresponding to an + * AVERROR code in case of failure + *) +function ff_rewind_with_probe_data(s: PByteIOContext; buf: PAnsiChar; buf_size: cint): cint; + cdecl; external av__format; +{$IFEND} + +(** + * Creates and initializes a ByteIOContext for accessing the + * resource indicated by url. + * @note When the resource indicated by url has been opened in + * read+write mode, the ByteIOContext can be used only for writing. + * + * @param s Used to return the pointer to the created ByteIOContext. + * In case of failure the pointed to value is set to NULL. + * @param flags flags which control how the resource indicated by url + * is to be opened + * @return 0 in case of success, a negative value corresponding to an + * AVERROR code in case of failure + *) +{$IF LIBAVFORMAT_VERSION < 52047000} // 52.47.0 {$IF LIBAVFORMAT_VERSION >= 52000000} // 52.0.0 function url_fopen(var s: PByteIOContext; filename: {const} PAnsiChar; flags: cint): cint; {$ELSE} function url_fopen(s: PByteIOContext; filename: {const} PAnsiChar; flags: cint): cint; {$IFEND} +{$ELSE} +function url_fopen(var s: PByteIOContext; url: {const} PAnsiChar; flags: cint): cint; +{$IFEND} cdecl; external av__format; function url_fclose(s: PByteIOContext): cint; cdecl; external av__format; |