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author | Panagiotis Issaris <takis.issaris@uhasselt.be> | 2007-03-05 13:55:45 +0000 |
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committer | Panagiotis Issaris <takis.issaris@uhasselt.be> | 2007-03-05 13:55:45 +0000 |
commit | a8c5ab270759c2e83ce7e5f85b9f9a1397e76e96 (patch) | |
tree | 6db2a39c866af8a89e3b856232973d51f70ddfca /libavformat/avio.h | |
parent | 50c5f1598d6a6a162b1add7a7b32e9bbd50287e4 (diff) | |
download | ffmpeg-streaming-a8c5ab270759c2e83ce7e5f85b9f9a1397e76e96.zip ffmpeg-streaming-a8c5ab270759c2e83ce7e5f85b9f9a1397e76e96.tar.gz |
Move aviobuf.c comments to avio.h. By moving the aviobuf.c comments to avio.h,
these comments can be extracted by Doxygen by only accessing the installed
headers.
Originally committed as revision 8258 to svn://svn.ffmpeg.org/ffmpeg/trunk
Diffstat (limited to 'libavformat/avio.h')
-rw-r--r-- | libavformat/avio.h | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/libavformat/avio.h b/libavformat/avio.h index 8770ff5..898e0e8 100644 --- a/libavformat/avio.h +++ b/libavformat/avio.h @@ -146,18 +146,27 @@ int url_feof(ByteIOContext *s); int url_ferror(ByteIOContext *s); #define URL_EOF (-1) +/* NOTE: return URL_EOF (-1) if EOF */ int url_fgetc(ByteIOContext *s); + +/* XXX: currently size is limited */ #ifdef __GNUC__ int url_fprintf(ByteIOContext *s, const char *fmt, ...) __attribute__ ((__format__ (__printf__, 2, 3))); #else int url_fprintf(ByteIOContext *s, const char *fmt, ...); #endif + +/* note: unlike fgets, the EOL character is not returned and a whole + line is parsed. return NULL if first char read was EOF */ 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_partial_buffer(ByteIOContext *s, unsigned char *buf, int size); + +/* NOTE: return 0 if EOF, so you cannot use it if EOF handling is + necessary */ int get_byte(ByteIOContext *s); unsigned int get_le24(ByteIOContext *s); unsigned int get_le32(ByteIOContext *s); @@ -176,17 +185,57 @@ static inline int url_is_streamed(ByteIOContext *s) } int url_fdopen(ByteIOContext *s, URLContext *h); + +/* XXX: must be called before any I/O */ int url_setbufsize(ByteIOContext *s, int buf_size); + +/* NOTE: when opened as read/write, the buffers are only used for + reading */ int url_fopen(ByteIOContext *s, const char *filename, int flags); int url_fclose(ByteIOContext *s); URLContext *url_fileno(ByteIOContext *s); + +/* + * Return the maximum packet size associated to packetized buffered file + * handle. If the file is not packetized (stream like http or file on + * disk), then 0 is returned. + * + * @param h buffered file handle + * @return maximum packet size in bytes + */ int url_fget_max_packet_size(ByteIOContext *s); int url_open_buf(ByteIOContext *s, uint8_t *buf, int buf_size, int flags); + +/* return the written or read size */ int url_close_buf(ByteIOContext *s); +/* + * Open a write only memory stream. + * + * @param s new IO context + * @return zero if no error. + */ int url_open_dyn_buf(ByteIOContext *s); + +/* + * Open a write only packetized memory stream with a maximum packet + * size of 'max_packet_size'. The stream is stored in a memory buffer + * with a big endian 4 byte header giving the packet size in bytes. + * + * @param s new IO context + * @param max_packet_size maximum packet size (must be > 0) + * @return zero if no error. + */ int url_open_dyn_packet_buf(ByteIOContext *s, int max_packet_size); + +/* + * Return the written size and a pointer to the buffer. The buffer + * must be freed with av_free(). + * @param s IO context + * @param pointer to a byte buffer + * @return the length of the byte buffer + */ int url_close_dyn_buf(ByteIOContext *s, uint8_t **pbuffer); unsigned long get_checksum(ByteIOContext *s); |