/*
* copyright (c) 2001 Fabrice Bellard
*
- * This file is part of FFmpeg.
+ * This file is part of Libav.
*
- * FFmpeg is free software; you can redistribute it and/or
+ * Libav 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 2.1 of the License, or (at your option) any later version.
*
- * FFmpeg is distributed in the hope that it will be useful,
+ * Libav 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 FFmpeg; if not, write to the Free Software
+ * License along with Libav; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#define MAX_URL_SIZE 4096
+#ifdef DEBUG
+# define hex_dump_debug(class, buf, size) av_hex_dump_log(class, AV_LOG_DEBUG, buf, size)
+#else
+# define hex_dump_debug(class, buf, size)
+#endif
+
typedef struct AVCodecTag {
enum CodecID id;
unsigned int tag;
} while(0)
#endif
-time_t mktimegm(struct tm *tm);
struct tm *brktimegm(time_t secs, struct tm *tm);
-const char *small_strptime(const char *p, const char *fmt,
- struct tm *dt);
char *ff_data_to_hex(char *buf, const uint8_t *src, int size, int lowercase);
/** Get the current time since NTP epoch in microseconds. */
uint64_t ff_ntp_time(void);
-/**
- * Probe a bytestream to determine the input format. Each time a probe returns
- * with a score that is too low, the probe buffer size is increased and another
- * attempt is made. When the maximum probe size is reached, the input format
- * with the highest score is returned.
- *
- * @param pb the bytestream to probe, it may be closed and opened again
- * @param fmt the input format is put here
- * @param filename the filename of the stream
- * @param logctx the log context
- * @param offset the offset within the bytestream to probe from
- * @param max_probe_size the maximum probe buffer size (zero for default)
- * @return 0 in case of success, a negative value corresponding to an
- * AVERROR code otherwise
- */
-int ff_probe_input_buffer(ByteIOContext **pb, AVInputFormat **fmt,
- const char *filename, void *logctx,
- unsigned int offset, unsigned int max_probe_size);
-
-#if LIBAVFORMAT_VERSION_MAJOR < 53
-/**
- * @deprecated use av_url_split() instead
- */
-void ff_url_split(char *proto, int proto_size,
- char *authorization, int authorization_size,
- char *hostname, int hostname_size,
- int *port_ptr,
- char *path, int path_size,
- const char *url);
-#endif
-
/**
* Assemble a URL string from components. This is the reverse operation
* of av_url_split.
*/
int ff_url_join(char *str, int size, const char *proto,
const char *authorization, const char *hostname,
- int port, const char *fmt, ...);
+ int port, const char *fmt, ...) av_printf_format(7, 8);
/**
* Append the media-specific SDP fragment for the media stream c
* @param dest_type the destination address type, may be NULL
* @param port the destination port of the media stream, 0 if unknown
* @param ttl the time to live of the stream, 0 if not multicast
+ * @param fmt the AVFormatContext, which might contain options modifying
+ * the generated SDP
*/
void ff_sdp_write_media(char *buff, int size, AVCodecContext *c,
const char *dest_addr, const char *dest_type,
- int port, int ttl);
+ int port, int ttl, AVFormatContext *fmt);
/**
* Write a packet to another muxer than the one the user originally
/**
* Put val using a variable number of bytes.
*/
-void ff_put_v(ByteIOContext *bc, uint64_t val);
+void ff_put_v(AVIOContext *bc, uint64_t val);
/**
- * Read a whole line of text from ByteIOContext. Stop reading after reaching
- * either a \n, a \0 or EOF. The returned string is always \0 terminated,
+ * Read a whole line of text from AVIOContext. Stop reading after reaching
+ * either a \\n, a \\0 or EOF. The returned string is always \\0-terminated,
* and may be truncated if the buffer is too small.
*
- * @param s the read-only ByteIOContext
+ * @param s the read-only AVIOContext
* @param buf buffer to store the read line
* @param maxlen size of the buffer
* @return the length of the string written in the buffer, not including the
- * final \0
+ * final \\0
*/
-int ff_get_line(ByteIOContext *s, char *buf, int maxlen);
+int ff_get_line(AVIOContext *s, char *buf, int maxlen);
#define SPACE_CHARS " \t\r\n"
void ff_parse_key_value(const char *str, ff_parse_key_val_cb callback_get_buf,
void *context);
+/**
+ * Find stream index based on format-specific stream ID
+ * @return stream index, or < 0 on error
+ */
+int ff_find_stream_index(AVFormatContext *s, int id);
+
+/**
+ * Internal version of av_index_search_timestamp
+ */
+int ff_index_search_timestamp(const AVIndexEntry *entries, int nb_entries,
+ int64_t wanted_timestamp, int flags);
+
+/**
+ * Internal version of av_add_index_entry
+ */
+int ff_add_index_entry(AVIndexEntry **index_entries,
+ int *nb_index_entries,
+ unsigned int *index_entries_allocated_size,
+ int64_t pos, int64_t timestamp, int size, int distance, int flags);
+
+/**
+ * Add a new chapter.
+ *
+ * @param s media file handle
+ * @param id unique ID for this chapter
+ * @param start chapter start time in time_base units
+ * @param end chapter end time in time_base units
+ * @param title chapter title
+ *
+ * @return AVChapter or NULL on error
+ */
+AVChapter *avpriv_new_chapter(AVFormatContext *s, int id, AVRational time_base,
+ int64_t start, int64_t end, const char *title);
+
+/**
+ * Ensure the index uses less memory than the maximum specified in
+ * AVFormatContext.max_index_size by discarding entries if it grows
+ * too large.
+ */
+void ff_reduce_index(AVFormatContext *s, int stream_index);
+
+/*
+ * Convert a relative url into an absolute url, given a base url.
+ *
+ * @param buf the buffer where output absolute url is written
+ * @param size the size of buf
+ * @param base the base url, may be equal to buf.
+ * @param rel the new url, which is interpreted relative to base
+ */
+void ff_make_absolute_url(char *buf, int size, const char *base,
+ const char *rel);
+
+enum CodecID ff_guess_image2_codec(const char *filename);
+
+/**
+ * Convert a date string in ISO8601 format to Unix timestamp.
+ */
+int64_t ff_iso8601_to_unix_time(const char *datestr);
+
+/**
+ * Perform a binary search using av_index_search_timestamp() and
+ * AVInputFormat.read_timestamp().
+ *
+ * @param target_ts target timestamp in the time base of the given stream
+ * @param stream_index stream number
+ */
+int ff_seek_frame_binary(AVFormatContext *s, int stream_index,
+ int64_t target_ts, int flags);
+
+/**
+ * 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).
+ * @param timestamp new dts expressed in time_base of param ref_st
+ * @param ref_st reference stream giving time_base of param timestamp
+ */
+void ff_update_cur_dts(AVFormatContext *s, AVStream *ref_st, int64_t timestamp);
+
+/**
+ * Perform a binary search using read_timestamp().
+ *
+ * @param target_ts target timestamp in the time base of the given stream
+ * @param stream_index stream number
+ */
+int64_t ff_gen_search(AVFormatContext *s, int stream_index,
+ int64_t target_ts, int64_t pos_min,
+ int64_t pos_max, int64_t pos_limit,
+ int64_t ts_min, int64_t ts_max,
+ int flags, int64_t *ts_ret,
+ int64_t (*read_timestamp)(struct AVFormatContext *, int , int64_t *, int64_t ));
+
+/**
+ * Set the pts for a given stream. If the new values would be invalid
+ * (<= 0), it leaves the AVStream unchanged.
+ *
+ * @param s stream
+ * @param pts_wrap_bits number of bits effectively used by the pts
+ * (used for wrap control, 33 is the value for MPEG)
+ * @param pts_num numerator to convert to seconds (MPEG: 1)
+ * @param pts_den denominator to convert to seconds (MPEG: 90000)
+ */
+void avpriv_set_pts_info(AVStream *s, int pts_wrap_bits,
+ unsigned int pts_num, unsigned int pts_den);
+
+/**
+ * Add side data to a packet for changing parameters to the given values.
+ * Parameters set to 0 aren't included in the change.
+ */
+int ff_add_param_change(AVPacket *pkt, int32_t channels,
+ uint64_t channel_layout, int32_t sample_rate,
+ int32_t width, int32_t height);
+
#endif /* AVFORMAT_INTERNAL_H */