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Diffstat (limited to 'ffmpeg1/libavformat/internal.h')
| -rw-r--r-- | ffmpeg1/libavformat/internal.h | 395 |
1 files changed, 0 insertions, 395 deletions
diff --git a/ffmpeg1/libavformat/internal.h b/ffmpeg1/libavformat/internal.h deleted file mode 100644 index 4d56388..0000000 --- a/ffmpeg1/libavformat/internal.h +++ /dev/null @@ -1,395 +0,0 @@ -/* - * copyright (c) 2001 Fabrice Bellard - * - * This file is part of FFmpeg. - * - * FFmpeg 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, - * 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 - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA - */ - -#ifndef AVFORMAT_INTERNAL_H -#define AVFORMAT_INTERNAL_H - -#include <stdint.h> -#include "avformat.h" - -#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 AVCodecID id; - unsigned int tag; -} AVCodecTag; - -typedef struct CodecMime{ - char str[32]; - enum AVCodecID id; -} CodecMime; - -#ifdef __GNUC__ -#define dynarray_add(tab, nb_ptr, elem)\ -do {\ - __typeof__(tab) _tab = (tab);\ - __typeof__(elem) _elem = (elem);\ - (void)sizeof(**_tab == _elem); /* check that types are compatible */\ - av_dynarray_add(_tab, nb_ptr, _elem);\ -} while(0) -#else -#define dynarray_add(tab, nb_ptr, elem)\ -do {\ - av_dynarray_add((tab), nb_ptr, (elem));\ -} while(0) -#endif - -struct tm *ff_brktimegm(time_t secs, struct tm *tm); - -char *ff_data_to_hex(char *buf, const uint8_t *src, int size, int lowercase); - -/** - * Parse a string of hexadecimal strings. Any space between the hexadecimal - * digits is ignored. - * - * @param data if non-null, the parsed data is written to this pointer - * @param p the string to parse - * @return the number of bytes written (or to be written, if data is null) - */ -int ff_hex_to_data(uint8_t *data, const char *p); - -void ff_program_add_stream_index(AVFormatContext *ac, int progid, unsigned int idx); - -/** - * Add packet to AVFormatContext->packet_buffer list, determining its - * interleaved position using compare() function argument. - * @return 0, or < 0 on error - */ -int ff_interleave_add_packet(AVFormatContext *s, AVPacket *pkt, - int (*compare)(AVFormatContext *, AVPacket *, AVPacket *)); - -void ff_read_frame_flush(AVFormatContext *s); - -#define NTP_OFFSET 2208988800ULL -#define NTP_OFFSET_US (NTP_OFFSET * 1000000ULL) - -/** Get the current time since NTP epoch in microseconds. */ -uint64_t ff_ntp_time(void); - -/** - * Assemble a URL string from components. This is the reverse operation - * of av_url_split. - * - * Note, this requires networking to be initialized, so the caller must - * ensure ff_network_init has been called. - * - * @see av_url_split - * - * @param str the buffer to fill with the url - * @param size the size of the str buffer - * @param proto the protocol identifier, if null, the separator - * after the identifier is left out, too - * @param authorization an optional authorization string, may be null. - * An empty string is treated the same as a null string. - * @param hostname the host name string - * @param port the port number, left out from the string if negative - * @param fmt a generic format string for everything to add after the - * host/port, may be null - * @return the number of characters written to the destination buffer - */ -int ff_url_join(char *str, int size, const char *proto, - const char *authorization, const char *hostname, - int port, const char *fmt, ...) av_printf_format(7, 8); - -/** - * Append the media-specific SDP fragment for the media stream c - * to the buffer buff. - * - * Note, the buffer needs to be initialized, since it is appended to - * existing content. - * - * @param buff the buffer to append the SDP fragment to - * @param size the size of the buff buffer - * @param st the AVStream of the media to describe - * @param idx the global stream index - * @param dest_addr the destination address of the media stream, may be NULL - * @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, AVStream *st, int idx, - const char *dest_addr, const char *dest_type, - int port, int ttl, AVFormatContext *fmt); - -/** - * Write a packet to another muxer than the one the user originally - * intended. Useful when chaining muxers, where one muxer internally - * writes a received packet to another muxer. - * - * @param dst the muxer to write the packet to - * @param dst_stream the stream index within dst to write the packet to - * @param pkt the packet to be written - * @param src the muxer the packet originally was intended for - * @return the value av_write_frame returned - */ -int ff_write_chained(AVFormatContext *dst, int dst_stream, AVPacket *pkt, - AVFormatContext *src); - -/** - * Get the length in bytes which is needed to store val as v. - */ -int ff_get_v_length(uint64_t val); - -/** - * Put val using a variable number of bytes. - */ -void ff_put_v(AVIOContext *bc, uint64_t val); - -/** - * 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 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 - */ -int ff_get_line(AVIOContext *s, char *buf, int maxlen); - -#define SPACE_CHARS " \t\r\n" - -/** - * Callback function type for ff_parse_key_value. - * - * @param key a pointer to the key - * @param key_len the number of bytes that belong to the key, including the '=' - * char - * @param dest return the destination pointer for the value in *dest, may - * be null to ignore the value - * @param dest_len the length of the *dest buffer - */ -typedef void (*ff_parse_key_val_cb)(void *context, const char *key, - int key_len, char **dest, int *dest_len); -/** - * Parse a string with comma-separated key=value pairs. The value strings - * may be quoted and may contain escaped characters within quoted strings. - * - * @param str the string to parse - * @param callback_get_buf function that returns where to store the - * unescaped value string. - * @param context the opaque context pointer to pass to callback_get_buf - */ -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 AVCodecID 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 time base and wrapping info for a given stream. This will be used - * to interpret the stream's timestamps. If the new time base is invalid - * (numerator or denominator are non-positive), it leaves the stream - * unchanged. - * - * @param s stream - * @param pts_wrap_bits number of bits effectively used by the pts - * (used for wrap control) - * @param pts_num time base numerator - * @param pts_den time base denominator - */ -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); - -/** - * Set the timebase for each stream from the corresponding codec timebase and - * print it. - */ -int ff_framehash_write_header(AVFormatContext *s); - -/** - * Read a transport packet from a media file. - * - * @param s media file handle - * @param pkt is filled - * @return 0 if OK, AVERROR_xxx on error - */ -int ff_read_packet(AVFormatContext *s, AVPacket *pkt); - -/** - * 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() - * on them is still safe. - * - * @param s media file handle - * @param out the interleaved packet will be output here - * @param pkt the input packet - * @param flush 1 if no further packets are available as input and all - * remaining packets should be output - * @return 1 if a packet was output, 0 if no packet could be output, - * < 0 if an error occurred - */ -int ff_interleave_packet_per_dts(AVFormatContext *s, AVPacket *out, - AVPacket *pkt, int flush); - -void ff_free_stream(AVFormatContext *s, AVStream *st); - -/** - * Return the frame duration in seconds. Return 0 if not available. - */ -void ff_compute_frame_duration(int *pnum, int *pden, AVStream *st, - AVCodecParserContext *pc, AVPacket *pkt); - -int ff_get_audio_frame_size(AVCodecContext *enc, int size, int mux); - -unsigned int ff_codec_get_tag(const AVCodecTag *tags, enum AVCodecID id); - -enum AVCodecID ff_codec_get_id(const AVCodecTag *tags, unsigned int tag); - -/** - * Select a PCM codec based on the given parameters. - * - * @param bps bits-per-sample - * @param flt floating-point - * @param be big-endian - * @param sflags signed flags. each bit corresponds to one byte of bit depth. - * e.g. the 1st bit indicates if 8-bit should be signed or - * unsigned, the 2nd bit indicates if 16-bit should be signed or - * unsigned, etc... This is useful for formats such as WAVE where - * only 8-bit is unsigned and all other bit depths are signed. - * @return a PCM codec id or AV_CODEC_ID_NONE - */ -enum AVCodecID ff_get_pcm_codec_id(int bps, int flt, int be, int sflags); - -/** - * Chooses a timebase for muxing the specified stream. - * - * The choosen timebase allows sample accurate timestamps based - * on the framerate or sample rate for audio streams. It also is - * at least as precisse as 1/min_precission would be. - */ -AVRational ff_choose_timebase(AVFormatContext *s, AVStream *st, int min_precission); - -/** - * Generate standard extradata for AVC-Intra based on width/height and field order. - */ -void ff_generate_avci_extradata(AVStream *st); - -int ff_http_match_no_proxy(const char *no_proxy, const char *hostname); - -#endif /* AVFORMAT_INTERNAL_H */ |