#include <stdint.h>
#include "avformat.h"
+#include "os_support.h"
#define MAX_URL_SIZE 4096
#endif
typedef struct AVCodecTag {
- enum CodecID id;
+ enum AVCodecID id;
unsigned int tag;
} AVCodecTag;
+typedef struct CodecMime{
+ char str[32];
+ enum AVCodecID id;
+} CodecMime;
+
+struct AVFormatInternal {
+ /**
+ * Number of streams relevant for interleaving.
+ * Muxing only.
+ */
+ int nb_interleaved_streams;
+
+ /**
+ * This buffer is only needed when packets were already buffered but
+ * not decoded, for example to get the codec parameters in MPEG
+ * streams.
+ */
+ struct AVPacketList *packet_buffer;
+ struct AVPacketList *packet_buffer_end;
+
+ /* av_seek_frame() support */
+ int64_t data_offset; /**< offset of the first packet */
+
+ /**
+ * Raw packets from the demuxer, prior to parsing and decoding.
+ * This buffer is used for buffering packets until the codec can
+ * be identified, as parsing cannot be done without knowing the
+ * codec.
+ */
+ struct AVPacketList *raw_packet_buffer;
+ struct AVPacketList *raw_packet_buffer_end;
+ /**
+ * Packets split by the parser get queued here.
+ */
+ struct AVPacketList *parse_queue;
+ struct AVPacketList *parse_queue_end;
+ /**
+ * Remaining size available for raw_packet_buffer, in bytes.
+ */
+#define RAW_PACKET_BUFFER_SIZE 2500000
+ int raw_packet_buffer_remaining_size;
+
+ /**
+ * Offset to remap timestamps to be non-negative.
+ * Expressed in timebase units.
+ */
+ int64_t offset;
+
+ /**
+ * Timebase for the timestamp offset.
+ */
+ AVRational offset_timebase;
+};
+
void ff_dynarray_add(intptr_t **tab_ptr, int *nb_ptr, intptr_t elem);
#ifdef __GNUC__
} while(0)
#endif
-struct tm *brktimegm(time_t secs, struct tm *tm);
+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);
* Add packet to AVFormatContext->packet_buffer list, determining its
* interleaved position using compare() function argument.
*/
-void ff_interleave_add_packet(AVFormatContext *s, AVPacket *pkt,
- int (*compare)(AVFormatContext *, AVPacket *, AVPacket *));
+int ff_interleave_add_packet(AVFormatContext *s, AVPacket *pkt,
+ int (*compare)(AVFormatContext *, AVPacket *, AVPacket *));
void ff_read_frame_flush(AVFormatContext *s);
/** 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.
*
* @param buff the buffer to append the SDP fragment to
* @param size the size of the buff buffer
- * @param c the AVCodecContext of the media to describe
+ * @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 fmt the AVFormatContext, which might contain options modifying
* the generated SDP
*/
-void ff_sdp_write_media(char *buff, int size, AVCodecContext *c,
+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);
*/
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);
+enum AVCodecID ff_guess_image2_codec(const char *filename);
/**
* Convert a date string in ISO8601 format to Unix timestamp.
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.
+ * 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, 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)
+ * (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_packet_unref()
+ * 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);
+
+/**
+ * Return the frame duration in seconds. Return 0 if not available.
+ */
+void ff_compute_frame_duration(AVFormatContext *s, int *pnum, int *pden, AVStream *st,
+ AVCodecParserContext *pc, AVPacket *pkt);
+
+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);
+
+/**
+ * Generate standard extradata for AVC-Intra based on width/height and field
+ * order.
+ */
+int ff_generate_avci_extradata(AVStream *st);
+
+/**
+ * Wrap errno on rename() error.
+ *
+ * @param oldpath source path
+ * @param newpath destination path
+ * @return 0 or AVERROR on failure
+ */
+static inline int ff_rename(const char *oldpath, const char *newpath)
+{
+ if (rename(oldpath, newpath) == -1)
+ return AVERROR(errno);
+ return 0;
+}
+
+/**
+ * Add new side data to a stream. If a side data of this type already exists, it
+ * is replaced.
+ */
+uint8_t *ff_stream_new_side_data(AVStream *st, enum AVPacketSideDataType type,
+ int size);
+
#endif /* AVFORMAT_INTERNAL_H */
projects / ffmpeg / blobdiff