+/*
+ * 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_H
#define AVFORMAT_H
extern "C" {
#endif
-#define LIBAVFORMAT_BUILD 4623
+#define LIBAVFORMAT_VERSION_INT ((51<<16)+(7<<8)+0)
+#define LIBAVFORMAT_VERSION 51.7.0
+#define LIBAVFORMAT_BUILD LIBAVFORMAT_VERSION_INT
-#define LIBAVFORMAT_VERSION_INT FFMPEG_VERSION_INT
-#define LIBAVFORMAT_VERSION FFMPEG_VERSION
-#define LIBAVFORMAT_IDENT "FFmpeg" FFMPEG_VERSION "b" AV_STRINGIFY(LIBAVFORMAT_BUILD)
+#define LIBAVFORMAT_IDENT "Lavf" AV_STRINGIFY(LIBAVFORMAT_VERSION)
#include <time.h>
#include <stdio.h> /* FILE */
/* packet functions */
-#ifndef MAXINT64
-#define MAXINT64 int64_t_C(0x7fffffffffffffff)
-#endif
-
-#ifndef MININT64
-#define MININT64 int64_t_C(0x8000000000000000)
-#endif
-
typedef struct AVPacket {
- 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) */
+ int64_t pts; ///< presentation time stamp in time_base units
+ int64_t dts; ///< decompression time stamp in time_base units
uint8_t *data;
int size;
int stream_index;
int flags;
- int duration; /* presentation duration (0 if not available) */
+ int duration; ///< presentation duration in time_base units (0 if not available)
void (*destruct)(struct AVPacket *);
void *priv;
-} AVPacket;
+ int64_t pos; ///< byte position in stream, -1 if unknown
+} AVPacket;
#define PKT_FLAG_KEY 0x0001
void av_destruct_packet_nofree(AVPacket *pkt);
+void av_destruct_packet(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->pos = -1;
pkt->duration = 0;
pkt->flags = 0;
pkt->stream_index = 0;
}
int av_new_packet(AVPacket *pkt, int size);
+int av_get_packet(ByteIOContext *s, AVPacket *pkt, int size);
int av_dup_packet(AVPacket *pkt);
/**
static inline void av_free_packet(AVPacket *pkt)
{
if (pkt && pkt->destruct) {
- pkt->destruct(pkt);
+ pkt->destruct(pkt);
}
}
/* 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_t val, num, den;
-} AVFrac;
-
-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);
+ int64_t val, num, den;
+} AVFrac attribute_deprecated;
/*************************************************/
/* input/output formats */
int buf_size;
} AVProbeData;
-#define AVPROBE_SCORE_MAX 100
+#define AVPROBE_SCORE_MAX 100 ///< max score, half of that is used for file extension based detection
typedef struct AVFormatParameters {
- int frame_rate;
- int frame_rate_base;
+ AVRational time_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 *device; /* video, 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
mpeg2ts_raw is TRUE */
int initial_pause:1; /* do not begin to play the stream
immediately (RTSP only) */
+ int prealloced_context:1;
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_NEEDNUMBER 0x0002 /* needs '%d' in filename */
#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 */
+#define AVFMT_NOTIMESTAMPS 0x0080 /* format doesnt need / has any timestamps */
typedef struct AVOutputFormat {
const char *name;
/* close the stream. The AVFormatContext and AVStreams are not
freed by this function */
int (*read_close)(struct AVFormatContext *);
- /**
- * seek to a given timestamp relative to the frames in
+ /**
+ * 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
+ * @param flags selects which direction should be preferred if no exact
* match is available
*/
- int (*read_seek)(struct AVFormatContext *,
+ int (*read_seek)(struct AVFormatContext *,
int stream_index, int64_t timestamp, int flags);
/**
* gets the next timestamp in AV_TIME_BASE units.
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 flags:2;
+ int size:30; //yeah trying to keep the size of this small to reduce memory requirements (its 24 vs 32 byte due to possible 8byte align)
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 */
- int r_frame_rate_base;/* real frame rate base of the stream */
+ AVCodecContext *codec; /* codec context */
+ /**
+ * real base frame rate of the stream.
+ * this is the lowest framerate with which all timestamps can be
+ * represented accurately (its the least common multiple of all
+ * framerates in the stream), Note, this value is just a guess!
+ * for example if the timebase is 1/90000 and all frames have either
+ * approximately 3600 or 1800 timer ticks then r_frame_rate will be 50/1
+ */
+ AVRational r_frame_rate;
void *priv_data;
/* internal data used in av_find_stream_info() */
- int64_t codec_info_duration;
+ int64_t codec_info_duration;
int codec_info_nb_frames;
/* encoding: PTS generation when outputing stream */
AVFrac pts;
+
+ /**
+ * this is the fundamental unit of time (in seconds) in terms
+ * of which frame timestamps are represented. for fixed-fps content,
+ * timebase should be 1/framerate and timestamp increments should be
+ * identically 1.
+ */
AVRational time_base;
int pts_wrap_bits; /* number of bits in pts (used for wrapping control) */
/* ffmpeg.c private use */
//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;
+ float quality;
/* decoding: position of the first frame of the component, in
AV_TIME_BASE fractional seconds. */
- int64_t start_time;
+ int64_t start_time;
/* decoding: duration of the stream, in AV_TIME_BASE fractional
seconds. */
int64_t duration;
+ char language[4]; /* ISO 639 3-letter language code (empty string if undefined) */
+
/* av_read_frame() support */
- int need_parsing;
+ int need_parsing; ///< 1->full parsing needed, 2->only parse headers dont repack
struct AVCodecParserContext *parser;
int64_t cur_dts;
AVIndexEntry *index_entries; /* only used if the format does not
support seeking natively */
int nb_index_entries;
- int index_entries_allocated_size;
+ unsigned int index_entries_allocated_size;
+
+ int64_t nb_frames; ///< number of frames in this stream if known or 0
+
+#define MAX_REORDER_DELAY 4
+ int64_t pts_buffer[MAX_REORDER_DELAY+1];
} AVStream;
#define AVFMTCTX_NOHEADER 0x0001 /* signal that no header is present
/* 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;
+ 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. */
/* 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;
+
+#define AVFMT_NOOUTPUTLOOP -1
+#define AVFMT_INFINITEOUTPUTLOOP 0
+ /* number of times to loop output in formats that support it */
+ int loop_output;
+
+ int flags;
+#define AVFMT_FLAG_GENPTS 0x0001 ///< generate pts if missing even if it requires parsing future frames
+#define AVFMT_FLAG_IGNIDX 0x0002 ///< ignore index
+
+ int loop_input;
+ /* decoding: size of data to probe; encoding unused */
+ unsigned int probesize;
} AVFormatContext;
typedef struct AVPacketList {
extern AVInputFormat *first_iformat;
extern AVOutputFormat *first_oformat;
-/* still image support */
-struct AVInputImageContext;
-typedef struct AVInputImageContext AVInputImageContext;
-
-typedef struct AVImageInfo {
- 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;
- /* tell if a given file has a chance of being parsing by this format */
- int (*img_probe)(AVProbeData *);
- /* read a whole image. 'alloc_cb' is called when the image size is
- known so that the caller can allocate the image. If 'allo_cb'
- returns non zero, then the parsing is aborted. Return '0' if
- OK. */
- int (*img_read)(ByteIOContext *,
- int (*alloc_cb)(void *, AVImageInfo *info), void *);
- /* 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);
-int av_write_image(ByteIOContext *pb, AVImageFormat *fmt, AVImageInfo *img);
-
-extern AVImageFormat *first_image_format;
-
-extern AVImageFormat pnm_image_format;
-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 */
-extern AVInputFormat mpegts_demux;
-int mpegts_init(void);
-
-/* rm.c */
-int rm_init(void);
-
-/* crc.c */
-int crc_init(void);
-
-/* img.c */
-int img_init(void);
-
-/* img2.c */
-int img2_init(void);
-
-/* asf.c */
-int asf_init(void);
-
-/* avienc.c */
-int avienc_init(void);
-
-/* avidec.c */
-int avidec_init(void);
-
-/* swf.c */
-int swf_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);
-
-/* gif.c */
-int gif_init(void);
-
-/* au.c */
-int au_init(void);
-
-/* amr.c */
-int amr_init(void);
-
-/* wav.c */
-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);
-
-/* mp3.c */
-int mp3_init(void);
-
-/* yuv4mpeg.c */
-int yuv4mpeg_init(void);
-
-/* ogg.c */
-int ogg_init(void);
-
-/* dv.c */
-int ff_dv_init(void);
-
-/* ffm.c */
-int ffm_init(void);
-
-/* rtsp.c */
-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"
-/* yuv4mpeg.c */
-extern AVOutputFormat yuv4mpegpipe_oformat;
-
/* utils.c */
void av_register_input_format(AVInputFormat *format);
void av_register_output_format(AVOutputFormat *format);
-AVOutputFormat *guess_stream_format(const char *short_name,
+AVOutputFormat *guess_stream_format(const char *short_name,
const char *filename, const char *mime_type);
-AVOutputFormat *guess_format(const char *short_name,
+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,
+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(FILE *f, uint8_t *buf, int size);
void av_register_all(void);
-typedef struct FifoBuffer {
- 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_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,
+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,
+int av_open_input_file(AVFormatContext **ic_ptr, const char *filename,
AVInputFormat *fmt,
int buf_size,
AVFormatParameters *ap);
#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_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);
+ int64_t pos, int64_t timestamp, int size, int distance, int flags);
int av_seek_frame_binary(AVFormatContext *s, int stream_index, int64_t target_ts, int flags);
+void av_update_cur_dts(AVFormatContext *s, AVStream *ref_st, int64_t timestamp);
+int64_t av_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 ));
/* media file output */
int av_set_parameters(AVFormatContext *s, AVFormatParameters *ap);
int av_write_header(AVFormatContext *s);
int av_write_frame(AVFormatContext *s, AVPacket *pkt);
int av_interleaved_write_frame(AVFormatContext *s, AVPacket *pkt);
+int av_interleave_packet_per_dts(AVFormatContext *s, AVPacket *out, AVPacket *pkt, int flush);
int av_write_trailer(AVFormatContext *s);
void dump_format(AVFormatContext *ic,
- int index,
+ int index,
const char *url,
int is_output);
int parse_image_size(int *width_ptr, int *height_ptr, const char *str);
int find_info_tag(char *arg, int arg_size, const char *tag1, const char *info);
-int get_frame_filename(char *buf, int buf_size,
- const char *path, int number);
-int filename_number_test(const char *filename);
+int av_get_frame_filename(char *buf, int buf_size,
+ const char *path, int number);
+int av_filename_number_test(const char *filename);
/* grab specific */
int video_grab_init(void);
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,
+const char *small_strptime(const char *p, const char *fmt,
struct tm *dt);
struct in_addr;
projects / ffmpeg / blobdiff