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-rw-r--r--src/lib/ffmpeg/avformat.pas149
-rw-r--r--src/lib/ffmpeg/avio.pas38
2 files changed, 109 insertions, 78 deletions
diff --git a/src/lib/ffmpeg/avformat.pas b/src/lib/ffmpeg/avformat.pas
index 42fc4347..6121c685 100644
--- a/src/lib/ffmpeg/avformat.pas
+++ b/src/lib/ffmpeg/avformat.pas
@@ -23,7 +23,7 @@
*
* Conversion of libavformat/avformat.h
* Min. version: 50.5.0 , revision 6577, Sat Oct 7 15:30:46 2006 UTC
- * Max. version: 52.71.0, revision 23706, Tue Jul 20 21:30:00 2010 CET
+ * Max. version: 52.72.0, revision 23941, Tue Jul 20 21:30:00 2010 CET
*)
unit avformat;
@@ -81,7 +81,7 @@ const
*)
(* Max. supported version by this header *)
LIBAVFORMAT_MAX_VERSION_MAJOR = 52;
- LIBAVFORMAT_MAX_VERSION_MINOR = 71;
+ LIBAVFORMAT_MAX_VERSION_MINOR = 72;
LIBAVFORMAT_MAX_VERSION_RELEASE = 0;
LIBAVFORMAT_MAX_VERSION = (LIBAVFORMAT_MAX_VERSION_MAJOR * VERSION_MAJOR) +
(LIBAVFORMAT_MAX_VERSION_MINOR * VERSION_MINOR) +
@@ -116,13 +116,13 @@ function avformat_version(): cuint;
{$IF LIBAVFORMAT_VERSION >= 52039002} // 52.39.2
(**
- * Returns the libavformat build-time configuration.
+ * Return the libavformat build-time configuration.
*)
function avformat_configuration(): {const} PansiChar;
cdecl; external av__format;
(**
- * Returns the libavformat license.
+ * Return the libavformat license.
*)
function avformat_license(): {const} PansiChar;
cdecl; external av__format;
@@ -175,7 +175,7 @@ type
{$IF LIBAVFORMAT_VERSION > 52024001} // > 52.24.1
{$IF LIBAVFORMAT_VERSION_MAJOR = 52}
(**
- * Gets a metadata element with matching key.
+ * Get a metadata element with matching key.
* @param prev Set to the previous matching element to find the next.
* If set to NULL the first matching element is returned.
* @param flags Allows case as well as suffix-insensitive comparisons.
@@ -186,7 +186,7 @@ function av_metadata_get(m: PAVMetadata; key: {const} PAnsiChar;
cdecl; external av__format;
(**
- * Sets the given tag in m, overwriting an existing tag.
+ * Set the given tag in m, overwriting an existing tag.
* @param key tag key to add to m (will be av_strduped)
* @param value tag value to add to m (will be av_strduped)
* @return >= 0 on success otherwise an error code <0
@@ -201,7 +201,7 @@ function av_metadata_set(var pm: PAVMetadata; key: {const} PAnsiChar; value: {co
{$IF LIBAVFORMAT_VERSION >= 52043000} // >= 52.43.0
(**
- * Sets the given tag in m, overwriting an existing tag.
+ * Set the given tag in m, overwriting an existing tag.
* @param key tag key to add to m (will be av_strduped depending on flags)
* @param value tag value to add to m (will be av_strduped depending on flags).
* Passing a NULL value will cause an existing tag to be deleted.
@@ -212,7 +212,7 @@ function av_metadata_set2(var pm: PAVMetadata; key: {const} PAnsiChar; value: {c
{$IFEND}
(**
- * Frees all the memory allocated for an AVMetadata struct.
+ * Free all the memory allocated for an AVMetadata struct.
*)
procedure av_metadata_free(var m: PAVMetadata);
cdecl; external av__format;
@@ -633,11 +633,11 @@ type
(** General purpose read-only value that the format can use. *)
value: cint;
- (** Starts/resumes playing - only meaningful if using a network-based format
+ (** Start/resume playing - only meaningful if using a network-based format
(RTSP). *)
read_play: function (c: PAVFormatContext): cint; cdecl;
- (** Pauses playing - only meaningful if using a network-based format
+ (** Pause playing - only meaningful if using a network-based format
(RTSP). *)
read_pause: function (c: PAVFormatContext): cint; cdecl;
@@ -647,7 +647,7 @@ type
{$IF LIBAVFORMAT_VERSION >= 52030000} // 52.30.0
(**
- * Seeks to timestamp ts.
+ * Seek to timestamp ts.
* Seeking will be done so that the point from which all active streams
* can be presented successfully will be closest to ts and within min/max_ts.
* Active streams are all streams that have AVStream.discard < AVDISCARD_ALL.
@@ -1164,8 +1164,8 @@ function guess_stream_format(short_name: PAnsiChar;
{$IFEND}
(**
- * Returns the output format in the list of registered output formats
- * which best matches the provided parameters, or returns NULL if
+ * Return the output format in the list of registered output formats
+ * which best matches the provided parameters, or return NULL if
* there is no match.
*
* @param short_name if non-NULL checks if short_name matches with the
@@ -1191,7 +1191,7 @@ function av_guess_format(short_name: PAnsiChar;
{$IFEND}
(**
- * Guesses the codec ID based upon muxer and filename.
+ * Guess the codec ID based upon muxer and filename.
*)
function av_guess_codec(fmt: PAVOutputFormat; short_name: PAnsiChar;
filename: PAnsiChar; mime_type: PAnsiChar;
@@ -1199,7 +1199,7 @@ function av_guess_codec(fmt: PAVOutputFormat; short_name: PAnsiChar;
cdecl; external av__format;
(**
- * Sends a nice hexadecimal dump of a buffer to the specified file stream.
+ * Send a nice hexadecimal dump of a buffer to the specified file stream.
*
* @param f The file stream pointer where the dump should be sent to.
* @param buf buffer
@@ -1212,7 +1212,7 @@ procedure av_hex_dump(f: PAVFile; buf: PByteArray; size: cint);
{$IF LIBAVFORMAT_VERSION >= 51011000} // 51.11.0
(**
- * Sends a nice hexadecimal dump of a buffer to the log.
+ * Send a nice hexadecimal dump of a buffer to the log.
*
* @param avcl A pointer to an arbitrary struct of which the first field is a
* pointer to an AVClass struct.
@@ -1228,7 +1228,7 @@ procedure av_hex_dump_log(avcl: Pointer; level: cint; buf: PByteArray; size: cin
{$IFEND}
(**
- * Sends a nice dump of a packet to the specified file stream.
+ * Send a nice dump of a packet to the specified file stream.
*
* @param f The file stream pointer where the dump should be sent to.
* @param pkt packet to dump
@@ -1239,7 +1239,7 @@ procedure av_pkt_dump(f: PAVFile; pkt: PAVPacket; dump_payload: cint);
{$IF LIBAVFORMAT_VERSION >= 51011000} // 51.11.0
(**
- * Sends a nice dump of a packet to the log.
+ * Send a nice dump of a packet to the log.
*
* @param avcl A pointer to an arbitrary struct of which the first field is a
* pointer to an AVClass struct.
@@ -1253,7 +1253,7 @@ procedure av_pkt_dump_log(avcl: Pointer; level: cint; pkt: PAVPacket; dump_paylo
{$IFEND}
(**
- * Initializes libavformat and registers all the muxers, demuxers and
+ * Initialize libavformat and register all the muxers, demuxers and
* protocols. If you do not call this function, then you can select
* exactly which formats you want to support.
*
@@ -1266,7 +1266,7 @@ procedure av_register_all();
{$IF LIBAVFORMAT_VERSION >= 51008000} // 51.8.0
(**
- * Gets the CodecID for the given codec tag tag.
+ * Get the CodecID for the given codec tag tag.
* If no codec id is found returns CODEC_ID_NONE.
*
* @param tags list of supported codec_id-codec_tag pairs, as stored
@@ -1276,7 +1276,7 @@ function av_codec_get_id(var tags: PAVCodecTag; tag: cuint): TCodecID;
cdecl; external av__format;
(**
- * Gets the codec tag for the given codec id id.
+ * Getsthe codec tag for the given codec id id.
* If no codec tag is found returns 0.
*
* @param tags list of supported codec_id-codec_tag pairs, as stored
@@ -1289,13 +1289,13 @@ function av_codec_get_tag(var tags: PAVCodecTag; id: TCodecID): cuint;
(* media file input *)
(**
- * Finds AVInputFormat based on the short name of the input format.
+ * Find AVInputFormat based on the short name of the input format.
*)
function av_find_input_format(short_name: PAnsiChar): PAVInputFormat;
cdecl; external av__format;
(**
- * Guesses file format.
+ * Guess file format.
*
* @param is_opened Whether the file is already opened; determines whether
* demuxers with or without AVFMT_NOFILE are probed.
@@ -1305,7 +1305,7 @@ function av_probe_input_format(pd: PAVProbeData; is_opened: cint): PAVInputForma
{$IF LIBAVFORMAT_VERSION >= 52062000} // 52.62.0
(**
- * Guesses the file format.
+ * Guess the file format.
*
* @param is_opened Whether the file is already opened; determines whether
* demuxers with or without AVFMT_NOFILE are probed.
@@ -1320,7 +1320,7 @@ function av_probe_input_format2(pd: PAVProbeData; is_opened: cint; score_max: PC
{$IFEND}
(**
- * Allocates all the structures needed to read an input stream.
+ * Allocate all the structures needed to read an input stream.
* This does not open the needed codecs for decoding the stream[s].
*)
function av_open_input_stream(var ic_ptr: PAVFormatContext;
@@ -1329,7 +1329,7 @@ function av_open_input_stream(var ic_ptr: PAVFormatContext;
cdecl; external av__format;
(**
- * Opens a media file as input. The codecs are not opened. Only the file
+ * Open a media file as input. The codecs are not opened. Only the file
* header (if present) is read.
*
* @param ic_ptr The opened media file handle is put here.
@@ -1347,7 +1347,7 @@ function av_open_input_file(var ic_ptr: PAVFormatContext; filename: PAnsiChar;
{$IF LIBAVFORMAT_VERSION >= 52026000} // 52.26.0
(**
- * Allocates an AVFormatContext.
+ * Allocate an AVFormatContext.
* Can be freed with av_free() but do not forget to free everything you
* explicitly allocated as well!
*)
@@ -1364,7 +1364,7 @@ function av_alloc_format_context(): PAVFormatContext;
{$IFEND}
(**
- * Reads packets of a media file to get stream information. This
+ * Read packets of a media file to get stream information. This
* is useful for file formats with no headers such as MPEG. This
* function also computes the real framerate in case of MPEG-2 repeat
* frame mode.
@@ -1380,7 +1380,7 @@ function av_find_stream_info(ic: PAVFormatContext): cint;
cdecl; external av__format;
(**
- * Reads a transport packet from a media file.
+ * Read a transport packet from a media file.
*
* This function is obsolete and should never be used.
* Use av_read_frame() instead.
@@ -1393,7 +1393,7 @@ function av_read_packet(s: PAVFormatContext; var pkt: TAVPacket): cint;
cdecl; external av__format;
(**
- * Returns the next frame of a stream.
+ * Return the next frame of a stream.
*
* The returned packet is valid
* until the next av_read_frame() or until av_close_input_file() and
@@ -1415,7 +1415,7 @@ function av_read_frame(s: PAVFormatContext; var pkt: TAVPacket): cint;
cdecl; external av__format;
(**
- * Seeks to the keyframe at timestamp.
+ * Seek to the keyframe at timestamp.
* 'timestamp' in 'stream_index'.
* @param stream_index If stream_index is (-1), a default
* stream is selected, and timestamp is automatically converted
@@ -1431,7 +1431,7 @@ function av_seek_frame(s: PAVFormatContext; stream_index: cint; timestamp: cint6
{$IF LIBAVFORMAT_VERSION >= 52026000} // 52.26.0
(**
- * Seeks to timestamp ts.
+ * Seek to timestamp ts.
* Seeking will be done so that the point from which all active streams
* can be presented successfully will be closest to ts and within min/max_ts.
* Active streams are all streams that have AVStream.discard < AVDISCARD_ALL.
@@ -1466,14 +1466,14 @@ function avformat_seek_file(s: PAVFormatContext;
{$IFEND}
(**
- * Starts playing a network-based stream (e.g. RTSP stream) at the
+ * Start playing a network-based stream (e.g. RTSP stream) at the
* current position.
*)
function av_read_play(s: PAVFormatContext): cint;
cdecl; external av__format;
(**
- * Pauses a network-based stream (e.g. RTSP stream).
+ * Pause a network-based stream (e.g. RTSP stream).
*
* Use av_read_play() to resume it.
*)
@@ -1482,7 +1482,7 @@ function av_read_pause(s: PAVFormatContext): cint;
{$IF LIBAVFORMAT_VERSION >= 52003000} // 52.3.0
(**
- * Frees a AVFormatContext allocated by av_open_input_stream.
+ * Free a AVFormatContext allocated by av_open_input_stream.
* @param s context to free
*)
procedure av_close_input_stream(s: PAVFormatContext);
@@ -1490,7 +1490,7 @@ procedure av_close_input_stream(s: PAVFormatContext);
{$IFEND}
(**
- * Closes a media file (but not its codecs).
+ * Close a media file (but not its codecs).
*
* @param s media file handle
*)
@@ -1498,7 +1498,7 @@ procedure av_close_input_file(s: PAVFormatContext);
cdecl; external av__format;
(**
- * Adds a new stream to a media file.
+ * Add a new stream to a media file.
*
* Can only be called in the read_header() function. If the flag
* AVFMTCTX_NOHEADER is in the format context, then new streams
@@ -1516,7 +1516,7 @@ function av_new_program(s: PAVFormatContext; id: cint): PAVProgram;
{$IF LIBAVFORMAT_VERSION >= 52014000} // 52.14.0
(**
- * Adds a new chapter.
+ * Add a new chapter.
* This function is NOT part of the public API
* and should ONLY be used by demuxers.
*
@@ -1534,7 +1534,7 @@ function ff_new_chapter(s: PAVFormatContext; id: cint; time_base: TAVRational;
{$IFEND}
(**
- * Sets the pts for a given stream.
+ * Set the pts for a given stream.
*
* @param s stream
* @param pts_wrap_bits number of bits effectively used by the pts
@@ -1562,7 +1562,7 @@ function av_find_default_stream_index(s: PAVFormatContext): cint;
cdecl; external av__format;
(**
- * Gets the index for a specific timestamp.
+ * Get the index for a specific timestamp.
* @param flags if AVSEEK_FLAG_BACKWARD then the returned index will correspond
* to the timestamp which is <= the requested one, if backward
* is 0, then it will be >=
@@ -1574,7 +1574,7 @@ function av_index_search_timestamp(st: PAVStream; timestamp: cint64; flags: cint
{$IF LIBAVFORMAT_VERSION >= 52004000} // 52.4.0
(**
- * Ensures the index uses less memory than the maximum specified in
+ * Ensure the index uses less memory than the maximum specified in
* AVFormatContext.max_index_size by discarding entries if it grows
* too large.
* This function is not part of the public API and should only be called
@@ -1585,7 +1585,7 @@ procedure ff_reduce_index(s: PAVFormatContext; stream_index: cint);
{$IFEND}
(**
- * Adds an index entry into a sorted list. Updates the entry if the list
+ * Add an index entry into a sorted list. Update the entry if the list
* already contains it.
*
* @param timestamp timestamp in the timebase of the given stream
@@ -1595,7 +1595,7 @@ function av_add_index_entry(st: PAVStream; pos: cint64; timestamp: cint64;
cdecl; external av__format;
(**
- * Does a binary search using av_index_search_timestamp() and
+ * Perform a binary search using av_index_search_timestamp() and
* AVCodec.read_timestamp().
* This is not supposed to be called directly by a user application,
* but by demuxers.
@@ -1608,7 +1608,7 @@ function av_seek_frame_binary(s: PAVFormatContext; stream_index: cint;
(**
- * Updates cur_dts of all streams based on the given timestamp and AVStream.
+ * Update cur_dts of all streams based on the given timestamp and AVStream.
*
* Stream ref_st unchanged, others set cur_dts in their native time base.
* Only needed for timestamp wrapping or if (dts not set and pts!=dts).
@@ -1625,7 +1625,7 @@ type
arg2: cint; arg3: Pint64; arg4: cint64): cint64; cdecl;
(**
- * Does a binary search using read_timestamp().
+ * Perform a binary search using read_timestamp().
* This is not supposed to be called directly by a user application,
* but by demuxers.
* @param target_ts target timestamp in the time base of the given stream
@@ -1644,8 +1644,37 @@ function av_gen_search(s: PAVFormatContext; stream_index: cint;
function av_set_parameters(s: PAVFormatContext; ap: PAVFormatParameters): cint;
cdecl; external av__format;
+{$IF LIBAVFORMAT_VERSION >= 52072000} // 52.72.0
(**
- * Allocates the stream private data and writes the stream header to an
+ * Split a URL string into components.
+ *
+ * The pointers to buffers for storing individual components may be null,
+ * in order to ignore that component. Buffers for components not found are
+ * set to empty strings. If the port is not found, it is set to a negative
+ * value.
+ *
+ * @param proto the buffer for the protocol
+ * @param proto_size the size of the proto buffer
+ * @param authorization the buffer for the authorization
+ * @param authorization_size the size of the authorization buffer
+ * @param hostname the buffer for the host name
+ * @param hostname_size the size of the hostname buffer
+ * @param port_ptr a pointer to store the port number in
+ * @param path the buffer for the path
+ * @param path_size the size of the path buffer
+ * @param url the URL to split
+ *)
+procedure av_url_split(proto: PAnsiChar; proto_size: cint;
+ authorization: PAnsiChar; authorization_size: cint;
+ hostname: PAnsiChar; hostname_size: cint;
+ port_ptr: Pcint;
+ path: PAnsiChar; path_size: cint;
+ {const} url: PAnsiChar);
+ cdecl; external av__format;
+{$IFEND}
+
+(**
+ * Allocate the stream private data and write the stream header to an
* output media file.
*
* @param s media file handle
@@ -1655,7 +1684,7 @@ function av_write_header(s: PAVFormatContext): cint;
cdecl; external av__format;
(**
- * Writes a packet to an output media file.
+ * Write a packet to an output media file.
*
* The packet shall contain one audio or video frame.
* The packet must be correctly interleaved according to the container
@@ -1670,7 +1699,7 @@ function av_write_frame(s: PAVFormatContext; var pkt: TAVPacket): cint;
cdecl; external av__format;
(**
- * Writes a packet to an output media file ensuring correct interleaving.
+ * Write a packet to an output media file ensuring correct interleaving.
*
* The packet must contain one audio or video frame.
* If the packets are already correctly interleaved, the application should
@@ -1688,7 +1717,7 @@ function av_interleaved_write_frame(s: PAVFormatContext; var pkt: TAVPacket): ci
cdecl; external av__format;
(**
- * Interleaves a packet per dts in an output media file.
+ * Interleave a packet per dts in an output media file.
*
* Packets with pkt->destruct == av_destruct_packet will be freed inside this
* function, so they cannot be used after it. Note that calling av_free_packet()
@@ -1725,7 +1754,7 @@ procedure ff_interleave_add_packet(s: PAVFormatContext;
{$IFEND}
(**
- * Writes the stream trailer to an output media file and frees the
+ * Write the stream trailer to an output media file and free the
* file private data.
*
* May only be called after a successful call to av_write_header.
@@ -1741,7 +1770,7 @@ procedure dump_format(ic: PAVFormatContext; index: cint; url: PAnsiChar;
cdecl; external av__format;
(**
- * Parses width and height out of string str.
+ * Parse width and height out of string str.
* @deprecated Use av_parse_video_frame_size instead.
*)
function parse_image_size(width_ptr: PCint; height_ptr: PCint;
@@ -1750,7 +1779,7 @@ function parse_image_size(width_ptr: PCint; height_ptr: PCint;
{$IF LIBAVFORMAT_VERSION_MAJOR < 53}
(**
- * Converts framerate from a string to a fraction.
+ * Convert framerate from a string to a fraction.
* @deprecated Use av_parse_video_frame_rate instead.
*)
function parse_frame_rate(frame_rate: PCint; frame_rate_base: PCint;
@@ -1759,7 +1788,7 @@ function parse_frame_rate(frame_rate: PCint; frame_rate_base: PCint;
{$IFEND}
(**
- * Parses datestr and returns a corresponding number of microseconds.
+ * Parse datestr and return a corresponding number of microseconds.
* @param datestr String representing a date or a duration.
* - If a date the syntax is:
* @code
@@ -1778,7 +1807,7 @@ function parse_frame_rate(frame_rate: PCint; frame_rate_base: PCint;
* [-]HH[:MM[:SS[.m...]]]
* [-]S+[.m...]
* @endcode
- * Returns the number of microseconds contained in a time interval
+ * @return the number of microseconds contained in a time interval
* with the specified duration or INT64_MIN if datestr cannot be
* successfully parsed.
* @param duration Flag which tells how to interpret datestr, if
@@ -1788,7 +1817,7 @@ function parse_frame_rate(frame_rate: PCint; frame_rate_base: PCint;
function parse_date(datestr: PAnsiChar; duration: cint): cint64;
cdecl; external av__format;
-(** Gets the current time in microseconds. *)
+(** Get the current time in microseconds. *)
function av_gettime(): cint64;
cdecl; external av__format;
@@ -1810,7 +1839,7 @@ procedure ffm_set_write_index(s: PAVFormatContext; pos: cint64; file_size: cint6
cdecl; external av__format;
(**
- * Attempts to find a specific tag in a URL.
+ * Attempt to find a specific tag in a URL.
*
* syntax: '?tag1=val1&tag2=val2...'. Little URL decoding is done.
* Return 1 if found.
@@ -1819,7 +1848,7 @@ function find_info_tag(arg: PAnsiChar; arg_size: cint; tag1: PAnsiChar; info: PA
cdecl; external av__format;
(**
- * Returns in 'buf' the path with '%d' replaced by a number.
+ * Return in 'buf' the path with '%d' replaced by a number.
*
* Also handles the '%0nd' format where 'n' is the total number
* of digits and '%%'.
@@ -1838,7 +1867,7 @@ function av_get_frame_filename(buf: PAnsiChar; buf_size: cint;
{$IFEND};
(**
- * Checks whether filename actually is a numbered sequence generator.
+ * Check whether filename actually is a numbered sequence generator.
*
* @param filename possible numbered sequence string
* @return 1 if a valid numbered sequence string, 0 otherwise
@@ -1851,7 +1880,7 @@ function av_filename_number_test(filename: PAnsiChar): cint;
{$IF LIBAVFORMAT_VERSION >= 51012002} // 51.12.2
(**
- * Generates an SDP for an RTP session.
+ * Generate an SDP for an RTP session.
*
* @param ac array of AVFormatContexts describing the RTP streams. If the
* array is composed by only one context, such context can contain
@@ -1870,7 +1899,7 @@ function avf_sdp_create(ac: PPAVFormatContext; n_files: cint; buff: PByteArray;
{$IF LIBAVFORMAT_VERSION >= 52060000} // 52.60.0
(**
- * Returns a positive value if the given filename has one of the given
+ * Return a positive value if the given filename has one of the given
* extensions, 0 otherwise.
*
* @param extensions a comma-separated list of filename extensions
diff --git a/src/lib/ffmpeg/avio.pas b/src/lib/ffmpeg/avio.pas
index 517c02ec..0a024ad5 100644
--- a/src/lib/ffmpeg/avio.pas
+++ b/src/lib/ffmpeg/avio.pas
@@ -122,7 +122,7 @@ type
{$IFEND}
(**
- * Reads up to size bytes from the resource accessed by h, and stores
+ * Read up to size bytes from the resource accessed by h, and store
* the read bytes in buf.
*
* @return The number of bytes actually read, or a negative value
@@ -143,7 +143,7 @@ type
url_write: function (h: PURLContext; {const} buf: PByteArray; size: cint): cint; cdecl;
(**
- * Changes the position that will be used by the next read/write
+ * Change 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
@@ -223,8 +223,8 @@ type
{$IF LIBAVFORMAT_VERSION >= 52070000} // 52.70.0
(**
- * Creates an URLContext for accessing to the resource indicated by
- * url, but doesn't initiate the connection yet.
+ * Create a URLContext for accessing to the resource indicated by
+ * url, but do not initiate the connection yet.
*
* @param puc pointer to the location where, in case of success, the
* function puts the pointer to the created URLContext
@@ -245,8 +245,8 @@ function url_connect(h: PURLContext): cint;
{$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.
+ * Create a URLContext for accessing to the resource indicated by
+ * URL, and open 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
@@ -265,8 +265,8 @@ function url_open_protocol(puc: PPURLContext; up: PURLProtocol;
{$IFEND}
(**
- * Creates an URLContext for accessing to the resource indicated by
- * url, and opens it.
+ * Create a URLContext for accessing to the resource indicated by
+ * url, and open it.
*
* @param puc pointer to the location where, in case of success, the
* function puts the pointer to the created URLContext
@@ -293,7 +293,7 @@ function url_seek (h: PURLContext; pos: cint64; whence: cint): cint64;
cdecl; external av__format;
(**
- * Closes the resource accessed by the URLContext h, and frees the
+ * Close the resource accessed by the URLContext h, and free the
* memory used by it.
*
* @return a negative value if an error condition occurred, 0
@@ -303,7 +303,7 @@ function url_close (h: PURLContext): cint;
cdecl; external av__format;
(**
- * Returns a non-zero value if the resource indicated by url
+ * Return a non-zero value if the resource indicated by url
* exists, 0 otherwise.
*)
{$IF LIBAVFORMAT_VERSION < 52047000} // 52.47.0
@@ -406,7 +406,7 @@ function av_protocol_next(p: PURLProtocol): PURLProtocol;
{$IF LIBAVFORMAT_VERSION <= 52028000} // 52.28.0
(**
- * Registers the URLProtocol protocol.
+ * Register the URLProtocol protocol.
*
*
* @deprecated Use av_register_protocol() instead.
@@ -500,7 +500,7 @@ function url_ftell(s: PByteIOContext): cint64;
cdecl; external av__format;
(**
- * Gets the filesize.
+ * Get the filesize.
* @return filesize or AVERROR
*)
function url_fsize(s: PByteIOContext): cint64;
@@ -545,14 +545,14 @@ procedure put_flush_packet (s: PByteIOContext);
cdecl; external av__format;
(**
- * Reads size bytes from ByteIOContext into buf.
+ * Read size bytes from ByteIOContext into buf.
* @return number of bytes read or AVERROR
*)
function get_buffer(s: PByteIOContext; buf: PByteArray; size: cint): cint;
cdecl; external av__format;
(**
- * Reads size bytes from ByteIOContext into buf.
+ * Read size bytes from ByteIOContext into buf.
* This reads at most 1 packet. If that is not enough fewer bytes will be
* returned.
* @return number of bytes read or AVERROR
@@ -592,7 +592,7 @@ function ff_get_v(bc: PByteIOContext): cuint64;
function url_is_streamed(s: PByteIOContext): cint; {$IFDEF HasInline}inline;{$ENDIF}
(**
- * Creates and initializes a ByteIOContext for accessing the
+ * Create and initialize a ByteIOContext for accessing the
* resource referenced by the URLContext h.
* @note When the URLContext h has been opened in read+write mode, the
* ByteIOContext can be used only for writing.
@@ -626,7 +626,7 @@ function url_resetbuf(s: PByteIOContext; flags: cint): cint;
{$IF LIBAVFORMAT_VERSION >= 52061000} // 52.61.0
(**
- * Rewinds the ByteIOContext using the specified buffer containing the first buf_size bytes of the file.
+ * Rewind 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
@@ -643,7 +643,7 @@ function ff_rewind_with_probe_data(s: PByteIOContext; buf: PAnsiChar; buf_size:
{$IFEND}
(**
- * Creates and initializes a ByteIOContext for accessing the
+ * Create and initialize 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.
@@ -723,7 +723,9 @@ function url_open_dyn_packet_buf(s: PByteIOContext; max_packet_size: cint): cint
(**
* Return the written size and a pointer to the buffer. The buffer
- * must be freed with av_free().
+ * must be freed with av_free(). If the buffer is opened with
+ * url_open_dyn_buf, then padding of FF_INPUT_BUFFER_PADDING_SIZE is
+ * added; if opened with url_open_dyn_packet_buf, no padding is added.
* @param s IO context
* @param pbuffer pointer to a byte buffer
* @return the length of the byte buffer
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-29 23:42:10 +0000