#ifndef AVFORMAT_H
#define AVFORMAT_H
-#define LIBAVFORMAT_VERSION_INT 0x000406
-#define LIBAVFORMAT_VERSION "0.4.6"
-#define LIBAVFORMAT_BUILD 4603
+#ifdef __cplusplus
+extern "C" {
+#endif
+#define LIBAVFORMAT_BUILD 4623
+
+#define LIBAVFORMAT_VERSION_INT FFMPEG_VERSION_INT
+#define LIBAVFORMAT_VERSION FFMPEG_VERSION
+#define LIBAVFORMAT_IDENT "FFmpeg" FFMPEG_VERSION "b" AV_STRINGIFY(LIBAVFORMAT_BUILD)
+
+#include <time.h>
+#include <stdio.h> /* FILE */
#include "avcodec.h"
#include "avio.h"
/* packet functions */
-#define AV_NOPTS_VALUE 0
+#ifndef MAXINT64
+#define MAXINT64 int64_t_C(0x7fffffffffffffff)
+#endif
+
+#ifndef MININT64
+#define MININT64 int64_t_C(0x8000000000000000)
+#endif
typedef struct AVPacket {
- INT64 pts; /* presentation time stamp in stream units (set av_set_pts_info) */
- UINT8 *data;
- int size;
- int stream_index;
- int flags;
- int duration;
-#define PKT_FLAG_KEY 0x0001
+ int64_t pts; /* presentation time stamp in AV_TIME_BASE units (or
+ pts_den units in muxers or demuxers) */
+ int64_t dts; /* decompression time stamp in AV_TIME_BASE units (or
+ pts_den units in muxers or demuxers) */
+ uint8_t *data;
+ int size;
+ int stream_index;
+ int flags;
+ int duration; /* presentation duration (0 if not available) */
+ void (*destruct)(struct AVPacket *);
+ void *priv;
} AVPacket;
+#define PKT_FLAG_KEY 0x0001
+
+void av_destruct_packet_nofree(AVPacket *pkt);
+
+/* initialize optional fields of a packet */
+static inline void av_init_packet(AVPacket *pkt)
+{
+ pkt->pts = AV_NOPTS_VALUE;
+ pkt->dts = AV_NOPTS_VALUE;
+ pkt->duration = 0;
+ pkt->flags = 0;
+ pkt->stream_index = 0;
+ pkt->destruct= av_destruct_packet_nofree;
+}
int av_new_packet(AVPacket *pkt, int size);
-void av_free_packet(AVPacket *pkt);
+int av_dup_packet(AVPacket *pkt);
+
+/**
+ * Free a packet
+ *
+ * @param pkt packet to free
+ */
+static inline void av_free_packet(AVPacket *pkt)
+{
+ if (pkt && pkt->destruct) {
+ pkt->destruct(pkt);
+ }
+}
/*************************************************/
/* fractional numbers for exact pts handling */
/* the exact value of the fractional number is: 'val + num / den'. num
is assumed to be such as 0 <= num < den */
typedef struct AVFrac {
- INT64 val, num, den;
+ int64_t val, num, den;
} AVFrac;
-void av_frac_init(AVFrac *f, INT64 val, INT64 num, INT64 den);
-void av_frac_add(AVFrac *f, INT64 incr);
-void av_frac_set(AVFrac *f, INT64 val);
+void av_frac_init(AVFrac *f, int64_t val, int64_t num, int64_t den);
+void av_frac_add(AVFrac *f, int64_t incr);
+void av_frac_set(AVFrac *f, int64_t val);
/*************************************************/
/* input/output formats */
/* this structure contains the data a format has to probe a file */
typedef struct AVProbeData {
- char *filename;
+ const char *filename;
unsigned char *buf;
int buf_size;
} AVProbeData;
typedef struct AVFormatParameters {
int frame_rate;
+ int frame_rate_base;
int sample_rate;
int channels;
int width;
int height;
enum PixelFormat pix_fmt;
struct AVImageFormat *image_format;
+ int channel; /* used to select dv channel */
+ const char *device; /* video4linux, audio or DV device */
+ const char *standard; /* tv standard, NTSC, PAL, SECAM */
+ int mpeg2ts_raw:1; /* force raw MPEG2 transport stream output, if possible */
+ int mpeg2ts_compute_pcr:1; /* compute exact PCR for each transport
+ stream packet (only meaningful if
+ mpeg2ts_raw is TRUE */
+ int initial_pause:1; /* do not begin to play the stream
+ immediately (RTSP only) */
+ enum CodecID video_codec_id;
+ enum CodecID audio_codec_id;
} AVFormatParameters;
#define AVFMT_NOFILE 0x0001 /* no file should be opened */
#define AVFMT_NEEDNUMBER 0x0002 /* needs '%d' in filename */
-#define AVFMT_NOHEADER 0x0004 /* signal that no header is present
- (streams are added dynamically) */
#define AVFMT_SHOW_IDS 0x0008 /* show format stream IDs numbers */
#define AVFMT_RAWPICTURE 0x0020 /* format wants AVPicture structure for
raw picture data */
+#define AVFMT_GLOBALHEADER 0x0040 /* format wants global header */
typedef struct AVOutputFormat {
const char *name;
enum CodecID audio_codec; /* default audio codec */
enum CodecID video_codec; /* default video codec */
int (*write_header)(struct AVFormatContext *);
- /* XXX: change prototype for 64 bit pts */
- int (*write_packet)(struct AVFormatContext *,
- int stream_index,
- unsigned char *buf, int size, int force_pts);
+ int (*write_packet)(struct AVFormatContext *, AVPacket *pkt);
int (*write_trailer)(struct AVFormatContext *);
- /* can use flags: AVFMT_NOFILE, AVFMT_NEEDNUMBER */
+ /* can use flags: AVFMT_NOFILE, AVFMT_NEEDNUMBER, AVFMT_GLOBALHEADER */
int flags;
/* currently only used to set pixel format if not YUV420P */
int (*set_parameters)(struct AVFormatContext *, AVFormatParameters *);
+ int (*interleave_packet)(struct AVFormatContext *, AVPacket *out, AVPacket *in, int flush);
/* private fields */
struct AVOutputFormat *next;
} AVOutputFormat;
AVFormatParameters *ap);
/* read one packet and put it in 'pkt'. pts and flags are also
set. 'av_new_stream' can be called only if the flag
- AVFMT_NOHEADER is used. */
+ AVFMTCTX_NOHEADER is used. */
int (*read_packet)(struct AVFormatContext *, AVPacket *pkt);
/* close the stream. The AVFormatContext and AVStreams are not
freed by this function */
int (*read_close)(struct AVFormatContext *);
- /* seek at or before a given pts (given in microsecond). The pts
- origin is defined by the stream */
- int (*read_seek)(struct AVFormatContext *, INT64 pts);
- /* can use flags: AVFMT_NOFILE, AVFMT_NEEDNUMBER, AVFMT_NOHEADER */
+ /**
+ * seek to a given timestamp relative to the frames in
+ * stream component stream_index
+ * @param stream_index must not be -1
+ * @param flags selects which direction should be preferred if no exact
+ * match is available
+ */
+ int (*read_seek)(struct AVFormatContext *,
+ int stream_index, int64_t timestamp, int flags);
+ /**
+ * gets the next timestamp in AV_TIME_BASE units.
+ */
+ int64_t (*read_timestamp)(struct AVFormatContext *s, int stream_index,
+ int64_t *pos, int64_t pos_limit);
+ /* can use flags: AVFMT_NOFILE, AVFMT_NEEDNUMBER */
int flags;
/* if extensions are defined, then no probe is done. You should
usually not use extension format guessing because it is not
const char *extensions;
/* general purpose read only value that the format can use */
int value;
+
+ /* start/resume playing - only meaningful if using a network based format
+ (RTSP) */
+ int (*read_play)(struct AVFormatContext *);
+
+ /* pause playing - only meaningful if using a network based format
+ (RTSP) */
+ int (*read_pause)(struct AVFormatContext *);
+
/* private fields */
struct AVInputFormat *next;
} AVInputFormat;
+typedef struct AVIndexEntry {
+ int64_t pos;
+ int64_t timestamp;
+#define AVINDEX_KEYFRAME 0x0001
+/* the following 2 flags indicate that the next/prev keyframe is known, and scaning for it isnt needed */
+ int flags;
+ int min_distance; /* min distance between this and the previous keyframe, used to avoid unneeded searching */
+} AVIndexEntry;
+
+enum AVDiscard{
+//we leave some space between them for extensions (drop some keyframes for intra only or drop just some bidir frames)
+ AVDISCARD_NONE =-16, ///< discard nothing
+ AVDISCARD_DEFAULT= 0, ///< discard useless packets like 0 size packets in avi
+ AVDISCARD_BIDIR = 16, ///< discard all bidirectional frames
+ AVDISCARD_NONKEY = 32, ///< discard all frames except keyframes
+ AVDISCARD_ALL = 48, ///< discard all
+};
+
typedef struct AVStream {
int index; /* stream index in AVFormatContext */
int id; /* format specific stream id */
AVCodecContext codec; /* codec context */
int r_frame_rate; /* real frame rate of the stream */
- uint64_t time_length; /* real length of the stream in miliseconds */
+ int r_frame_rate_base;/* real frame rate base of the stream */
void *priv_data;
/* internal data used in av_find_stream_info() */
- int codec_info_state;
- int codec_info_nb_repeat_frames;
- int codec_info_nb_real_frames;
- /* PTS generation when outputing stream */
+ int64_t codec_info_duration;
+ int codec_info_nb_frames;
+ /* encoding: PTS generation when outputing stream */
AVFrac pts;
+ AVRational time_base;
+ int pts_wrap_bits; /* number of bits in pts (used for wrapping control) */
/* ffmpeg.c private use */
int stream_copy; /* if TRUE, just copy stream */
+ enum AVDiscard discard; ///< selects which packets can be discarded at will and dont need to be demuxed
+ //FIXME move stuff to a flags field?
/* quality, as it has been removed from AVCodecContext and put in AVVideoFrame
* MN:dunno if thats the right place, for it */
float quality;
+ /* decoding: position of the first frame of the component, in
+ AV_TIME_BASE fractional seconds. */
+ int64_t start_time;
+ /* decoding: duration of the stream, in AV_TIME_BASE fractional
+ seconds. */
+ int64_t duration;
+
+ /* av_read_frame() support */
+ int need_parsing;
+ struct AVCodecParserContext *parser;
+
+ int64_t cur_dts;
+ int last_IP_duration;
+ int64_t last_IP_pts;
+ /* av_seek_frame() support */
+ AVIndexEntry *index_entries; /* only used if the format does not
+ support seeking natively */
+ int nb_index_entries;
+ int index_entries_allocated_size;
} AVStream;
+#define AVFMTCTX_NOHEADER 0x0001 /* signal that no header is present
+ (streams are added dynamically) */
+
#define MAX_STREAMS 20
/* format I/O context */
typedef struct AVFormatContext {
+ const AVClass *av_class; /* set by av_alloc_format_context */
/* can only be iformat or oformat, not both at the same time */
struct AVInputFormat *iformat;
struct AVOutputFormat *oformat;
AVStream *streams[MAX_STREAMS];
char filename[1024]; /* input or output filename */
/* stream info */
+ int64_t timestamp;
char title[512];
char author[512];
char copyright[512];
char comment[512];
- int flags; /* format specific flags */
+ char album[512];
+ int year; /* ID3 year, 0 if none */
+ int track; /* track number, 0 if none */
+ char genre[32]; /* ID3 genre */
+
+ int ctx_flags; /* format specific flags, see AVFMTCTX_xx */
/* private data for pts handling (do not modify directly) */
- int pts_wrap_bits; /* number of bits in pts (used for wrapping control) */
- int pts_num, pts_den; /* value to convert to seconds */
/* 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;
+
+ /* decoding: position of the first frame of the component, in
+ AV_TIME_BASE fractional seconds. NEVER set this value directly:
+ it is deduced from the AVStream values. */
+ int64_t start_time;
+ /* decoding: duration of the stream, in AV_TIME_BASE fractional
+ seconds. NEVER set this value directly: it is deduced from the
+ AVStream values. */
+ int64_t duration;
+ /* decoding: total file size. 0 if unknown */
+ int64_t file_size;
+ /* decoding: total stream bitrate in bit/s, 0 if not
+ available. Never set it directly if the file_size and the
+ duration are known as ffmpeg can compute it automatically. */
+ int bit_rate;
+
+ /* av_read_frame() support */
+ AVStream *cur_st;
+ const uint8_t *cur_ptr;
+ int cur_len;
+ AVPacket cur_pkt;
+
+ /* av_seek_frame() support */
+ int64_t data_offset; /* offset of the first packet */
+ int index_built;
+
+ int mux_rate;
+ int packet_size;
+ int preload;
+ int max_delay;
} AVFormatContext;
typedef struct AVPacketList {
enum PixelFormat pix_fmt; /* requested pixel format */
int width; /* requested width */
int height; /* requested height */
+ int interleaved; /* image is interleaved (e.g. interleaved GIF) */
AVPicture pict; /* returned allocated image */
} AVImageInfo;
+/* AVImageFormat.flags field constants */
+#define AVIMAGE_INTERLEAVED 0x0001 /* image format support interleaved output */
+
typedef struct AVImageFormat {
const char *name;
const char *extensions;
/* write the image */
int supported_pixel_formats; /* mask of supported formats for output */
int (*img_write)(ByteIOContext *, AVImageInfo *);
+ int flags;
struct AVImageFormat *next;
} AVImageFormat;
void av_register_image_format(AVImageFormat *img_fmt);
AVImageFormat *av_probe_image_format(AVProbeData *pd);
AVImageFormat *guess_image_format(const char *filename);
+enum CodecID av_guess_image2_codec(const char *filename);
int av_read_image(ByteIOContext *pb, const char *filename,
AVImageFormat *fmt,
int (*alloc_cb)(void *, AVImageInfo *info), void *opaque);
extern AVImageFormat pbm_image_format;
extern AVImageFormat pgm_image_format;
extern AVImageFormat ppm_image_format;
+extern AVImageFormat pam_image_format;
extern AVImageFormat pgmyuv_image_format;
extern AVImageFormat yuv_image_format;
+#ifdef CONFIG_ZLIB
+extern AVImageFormat png_image_format;
+#endif
+extern AVImageFormat jpeg_image_format;
+extern AVImageFormat gif_image_format;
+extern AVImageFormat sgi_image_format;
/* XXX: use automatic init with either ELF sections or C file parser */
/* modules */
/* mpeg.c */
+extern AVInputFormat mpegps_demux;
int mpegps_init(void);
/* mpegts.c */
/* img.c */
int img_init(void);
+/* img2.c */
+int img2_init(void);
+
/* asf.c */
int asf_init(void);
/* mov.c */
int mov_init(void);
+/* movenc.c */
+int movenc_init(void);
+
+/* flvenc.c */
+int flvenc_init(void);
+
+/* flvdec.c */
+int flvdec_init(void);
+
/* jpeg.c */
int jpeg_init(void);
/* au.c */
int au_init(void);
+/* amr.c */
+int amr_init(void);
+
/* wav.c */
-int wav_init(void);
+int ff_wav_init(void);
/* raw.c */
+int pcm_read_seek(AVFormatContext *s,
+ int stream_index, int64_t timestamp, int flags);
int raw_init(void);
-/* ogg.c */
+/* mp3.c */
+int mp3_init(void);
+
+/* yuv4mpeg.c */
+int yuv4mpeg_init(void);
+
+/* ogg2.c */
int ogg_init(void);
+/* ogg.c */
+int libogg_init(void);
+
/* dv.c */
-int dv_init(void);
+int ff_dv_init(void);
/* ffm.c */
int ffm_init(void);
extern AVInputFormat redir_demux;
int redir_open(AVFormatContext **ic_ptr, ByteIOContext *f);
+/* 4xm.c */
+int fourxm_init(void);
+
+/* psxstr.c */
+int str_init(void);
+
+/* idroq.c */
+int roq_init(void);
+
+/* ipmovie.c */
+int ipmovie_init(void);
+
+/* nut.c */
+int nut_init(void);
+
+/* wc3movie.c */
+int wc3_init(void);
+
+/* westwood.c */
+int westwood_init(void);
+
+/* segafilm.c */
+int film_init(void);
+
+/* idcin.c */
+int idcin_init(void);
+
+/* flic.c */
+int flic_init(void);
+
+/* sierravmd.c */
+int vmd_init(void);
+
+/* matroska.c */
+int matroska_init(void);
+
+/* sol.c */
+int sol_init(void);
+
+/* electronicarts.c */
+int ea_init(void);
+
+/* nsvdec.c */
+int nsvdec_init(void);
+
#include "rtp.h"
#include "rtsp.h"
extern AVOutputFormat yuv4mpegpipe_oformat;
/* utils.c */
-#define MKTAG(a,b,c,d) (a | (b << 8) | (c << 16) | (d << 24))
-#define MKBETAG(a,b,c,d) (d | (c << 8) | (b << 16) | (a << 24))
-
void av_register_input_format(AVInputFormat *format);
void av_register_output_format(AVOutputFormat *format);
AVOutputFormat *guess_stream_format(const char *short_name,
const char *filename, const char *mime_type);
AVOutputFormat *guess_format(const char *short_name,
const char *filename, const char *mime_type);
+enum CodecID av_guess_codec(AVOutputFormat *fmt, const char *short_name,
+ const char *filename, const char *mime_type, enum CodecType type);
-void av_hex_dump(UINT8 *buf, int size);
+void av_hex_dump(FILE *f, uint8_t *buf, int size);
+void av_pkt_dump(FILE *f, AVPacket *pkt, int dump_payload);
void av_register_all(void);
typedef struct FifoBuffer {
- UINT8 *buffer;
- UINT8 *rptr, *wptr, *end;
+ uint8_t *buffer;
+ uint8_t *rptr, *wptr, *end;
} FifoBuffer;
int fifo_init(FifoBuffer *f, int size);
void fifo_free(FifoBuffer *f);
-int fifo_size(FifoBuffer *f, UINT8 *rptr);
-int fifo_read(FifoBuffer *f, UINT8 *buf, int buf_size, UINT8 **rptr_ptr);
-void fifo_write(FifoBuffer *f, UINT8 *buf, int size, UINT8 **wptr_ptr);
+int fifo_size(FifoBuffer *f, uint8_t *rptr);
+int fifo_read(FifoBuffer *f, uint8_t *buf, int buf_size, uint8_t **rptr_ptr);
+void fifo_write(FifoBuffer *f, uint8_t *buf, int size, uint8_t **wptr_ptr);
+int put_fifo(ByteIOContext *pb, FifoBuffer *f, int buf_size, uint8_t **rptr_ptr);
+void fifo_realloc(FifoBuffer *f, unsigned int size);
/* media file input */
AVInputFormat *av_find_input_format(const char *short_name);
AVInputFormat *av_probe_input_format(AVProbeData *pd, int is_opened);
+int av_open_input_stream(AVFormatContext **ic_ptr,
+ ByteIOContext *pb, const char *filename,
+ AVInputFormat *fmt, AVFormatParameters *ap);
int av_open_input_file(AVFormatContext **ic_ptr, const char *filename,
AVInputFormat *fmt,
int buf_size,
AVFormatParameters *ap);
+/* no av_open for output, so applications will need this: */
+AVFormatContext *av_alloc_format_context(void);
#define AVERROR_UNKNOWN (-1) /* unknown error */
#define AVERROR_IO (-2) /* i/o error */
#define AVERROR_INVALIDDATA (-4) /* invalid data found */
#define AVERROR_NOMEM (-5) /* not enough memory */
#define AVERROR_NOFMT (-6) /* unknown format */
-
+#define AVERROR_NOTSUPP (-7) /* operation not supported */
+
int av_find_stream_info(AVFormatContext *ic);
int av_read_packet(AVFormatContext *s, AVPacket *pkt);
+int av_read_frame(AVFormatContext *s, AVPacket *pkt);
+int av_seek_frame(AVFormatContext *s, int stream_index, int64_t timestamp, int flags);
+int av_read_play(AVFormatContext *s);
+int av_read_pause(AVFormatContext *s);
void av_close_input_file(AVFormatContext *s);
AVStream *av_new_stream(AVFormatContext *s, int id);
-void av_set_pts_info(AVFormatContext *s, int pts_wrap_bits,
+void av_set_pts_info(AVStream *s, int pts_wrap_bits,
int pts_num, int pts_den);
+#define AVSEEK_FLAG_BACKWARD 1 ///< seek backward
+#define AVSEEK_FLAG_BYTE 2 ///< seeking based on position in bytes
+#define AVSEEK_FLAG_ANY 4 ///< seek to any frame, even non keyframes
+
+int av_find_default_stream_index(AVFormatContext *s);
+int av_index_search_timestamp(AVStream *st, int64_t timestamp, int flags);
+int av_add_index_entry(AVStream *st,
+ int64_t pos, int64_t timestamp, int distance, int flags);
+int av_seek_frame_binary(AVFormatContext *s, int stream_index, int64_t target_ts, int flags);
+
/* media file output */
int av_set_parameters(AVFormatContext *s, AVFormatParameters *ap);
int av_write_header(AVFormatContext *s);
-int av_write_frame(AVFormatContext *s, int stream_index, const uint8_t *buf,
- int size);
+int av_write_frame(AVFormatContext *s, AVPacket *pkt);
+int av_interleaved_write_frame(AVFormatContext *s, AVPacket *pkt);
+
int av_write_trailer(AVFormatContext *s);
void dump_format(AVFormatContext *ic,
const char *url,
int is_output);
int parse_image_size(int *width_ptr, int *height_ptr, const char *str);
-INT64 parse_date(const char *datestr, int duration);
+int parse_frame_rate(int *frame_rate, int *frame_rate_base, const char *arg);
+int64_t parse_date(const char *datestr, int duration);
-INT64 av_gettime(void);
+int64_t av_gettime(void);
/* ffm specific for ffserver */
#define FFM_PACKET_SIZE 4096
int video_grab_init(void);
int audio_init(void);
-extern const char *v4l_device;
-extern const char *audio_device;
+/* DV1394 */
+int dv1394_init(void);
+int dc1394_init(void);
#ifdef HAVE_AV_CONFIG_H
+
+#include "os_support.h"
+
int strstart(const char *str, const char *val, const char **ptr);
int stristart(const char *str, const char *val, const char **ptr);
void pstrcpy(char *buf, int buf_size, const char *str);
char *pstrcat(char *buf, int buf_size, const char *s);
+void __dynarray_add(unsigned long **tab_ptr, int *nb_ptr, unsigned long elem);
+
+#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 */\
+ __dynarray_add((unsigned long **)_tab, nb_ptr, (unsigned long)_elem);\
+} while(0)
+#else
+#define dynarray_add(tab, nb_ptr, elem)\
+do {\
+ __dynarray_add((unsigned long **)(tab), nb_ptr, (unsigned long)(elem));\
+} 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);
+
struct in_addr;
int resolve_host(struct in_addr *sin_addr, const char *hostname);
void 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,
#endif /* HAVE_AV_CONFIG_H */
+#ifdef __cplusplus
+}
+#endif
+
#endif /* AVFORMAT_H */
+
projects / ffmpeg / blobdiff