76c0441b10
- This stuff could be done in AVCodecContext and the real frame rate calculated in utils.c, but we don't changes in that by now ;) Originally committed as revision 497 to svn://svn.ffmpeg.org/ffmpeg/trunk
237 lines
6.7 KiB
C
237 lines
6.7 KiB
C
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#define LIBAV_VERSION_INT 0x000406
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#define LIBAV_VERSION "0.4.6"
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#define LIBAV_BUILD 4601
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#include "avcodec.h"
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#include "avio.h"
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/* packet functions */
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typedef struct AVPacket {
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INT64 pts;
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UINT8 *data;
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int size;
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int stream_index;
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int flags;
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int duration;
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#define PKT_FLAG_KEY 0x0001
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#define PKT_FLAG_DROPPED_FRAME 0x0002
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} AVPacket;
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int av_new_packet(AVPacket *pkt, int size);
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void av_free_packet(AVPacket *pkt);
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/*************************************************/
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/* output formats */
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struct AVFormatContext;
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struct AVFormatInputContext;
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typedef struct AVFormatParameters {
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int frame_rate;
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int sample_rate;
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int channels;
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int width;
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int height;
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enum PixelFormat pix_fmt;
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} AVFormatParameters;
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typedef struct AVFormat {
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const char *name;
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const char *long_name;
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const char *mime_type;
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const char *extensions; /* comma separated extensions */
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/* output support */
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enum CodecID audio_codec; /* default audio codec */
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enum CodecID video_codec; /* default video codec */
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int (*write_header)(struct AVFormatContext *);
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int (*write_packet)(struct AVFormatContext *,
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int stream_index,
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unsigned char *buf, int size, int force_pts);
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int (*write_trailer)(struct AVFormatContext *);
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/* optional input support */
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/* read the format header and initialize the AVFormatInputContext
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structure. Return 0 if OK. 'ap' if non NULL contains
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additionnal paramters. Only used in raw format right now */
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int (*read_header)(struct AVFormatContext *,
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AVFormatParameters *ap);
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/* read one packet and put it in 'pkt'. pts and flags are also set */
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int (*read_packet)(struct AVFormatContext *, AVPacket *pkt);
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/* close the stream. The AVFormatContext and AVStreams are not
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freed by this function */
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int (*read_close)(struct AVFormatContext *);
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/* seek at or before a given pts (given in microsecond). The pts
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origin is defined by the stream */
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int (*read_seek)(struct AVFormatContext *, INT64 pts);
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int flags;
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#define AVFMT_NOFILE 0x0001 /* no file should be opened */
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#define AVFMT_NEEDNUMBER 0x0002 /* needs '%d' in filename */
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struct AVFormat *next;
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} AVFormat;
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typedef struct AVStream {
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int id; /* internal stream id */
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AVCodecContext codec; /* codec context */
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int r_frame_rate; /* real frame rate of the stream */
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void *priv_data;
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} AVStream;
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#define MAX_STREAMS 20
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/* format I/O context */
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typedef struct AVFormatContext {
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struct AVFormat *format;
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void *priv_data;
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ByteIOContext pb;
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int nb_streams;
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AVStream *streams[MAX_STREAMS];
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char filename[1024]; /* input or output filename */
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/* stream info */
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char title[512];
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char author[512];
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char copyright[512];
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char comment[512];
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int flags; /* format specific flags */
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/* This buffer is only needed when packets were already buffered but
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not decoded, for example to get the codec parameters in mpeg
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streams */
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struct AVPacketList *packet_buffer;
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} AVFormatContext;
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typedef struct AVPacketList {
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AVPacket pkt;
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struct AVPacketList *next;
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} AVPacketList;
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extern AVFormat *first_format;
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/* rv10enc.c */
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extern AVFormat rm_format;
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/* mpegmux.c */
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#define AVF_FLAG_VCD 0x00000001 /* VCD compatible MPEG-PS */
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extern AVFormat mpeg_mux_format;
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/* asfenc.c */
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extern AVFormat asf_format;
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/* avienc.c */
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extern AVFormat avi_format;
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/* mov.c */
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extern AVFormat mov_format;
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extern AVFormat mp4_format;
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/* jpegenc.c */
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extern AVFormat mpjpeg_format;
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extern AVFormat jpeg_format;
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extern AVFormat single_jpeg_format;
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/* swfenc.c */
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extern AVFormat swf_format;
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/* gif.c */
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extern AVFormat gif_format;
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/* au.c */
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extern AVFormat au_format;
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/* wav.c */
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extern AVFormat wav_format;
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/* img.c */
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extern AVFormat pgm_format;
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extern AVFormat ppm_format;
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extern AVFormat pgmyuv_format;
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extern AVFormat imgyuv_format;
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extern AVFormat pgmpipe_format;
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extern AVFormat pgmyuvpipe_format;
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extern AVFormat ppmpipe_format;
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/* raw.c */
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extern AVFormat mp2_format;
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extern AVFormat ac3_format;
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extern AVFormat h263_format;
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extern AVFormat mpeg1video_format;
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extern AVFormat mjpeg_format;
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extern AVFormat pcm_s16le_format;
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extern AVFormat pcm_s16be_format;
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extern AVFormat pcm_u16le_format;
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extern AVFormat pcm_u16be_format;
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extern AVFormat pcm_s8_format;
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extern AVFormat pcm_u8_format;
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extern AVFormat pcm_mulaw_format;
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extern AVFormat pcm_alaw_format;
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extern AVFormat rawvideo_format;
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/* ffm.c */
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extern AVFormat ffm_format;
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/* formats.c */
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#define MKTAG(a,b,c,d) (a | (b << 8) | (c << 16) | (d << 24))
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#define MKBETAG(a,b,c,d) (d | (c << 8) | (b << 16) | (a << 24))
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void register_avformat(AVFormat *format);
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AVFormat *guess_format(const char *short_name, const char *filename, const char *mime_type);
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int strstart(const char *str, const char *val, const char **ptr);
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void nstrcpy(char *buf, int buf_size, const char *str);
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/* This does what strncpy ought to do. */
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void strlcpy(char *dst, const char *src, int dst_size);
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int match_ext(const char *filename, const char *extensions);
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void register_all(void);
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INT64 gettime(void);
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typedef struct FifoBuffer {
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UINT8 *buffer;
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UINT8 *rptr, *wptr, *end;
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} FifoBuffer;
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int fifo_init(FifoBuffer *f, int size);
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void fifo_free(FifoBuffer *f);
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int fifo_size(FifoBuffer *f, UINT8 *rptr);
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int fifo_read(FifoBuffer *f, UINT8 *buf, int buf_size, UINT8 **rptr_ptr);
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void fifo_write(FifoBuffer *f, UINT8 *buf, int size, UINT8 **wptr_ptr);
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AVFormatContext *av_open_input_file(const char *filename,
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const char *format_name,
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int buf_size,
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AVFormatParameters *ap);
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int av_read_packet(AVFormatContext *s, AVPacket *pkt);
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void av_close_input_file(AVFormatContext *s);
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int av_write_packet(AVFormatContext *s, AVPacket *pkt, int force_pts);
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void dump_format(AVFormatContext *ic,
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int index,
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const char *url,
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int is_output);
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int parse_image_size(int *width_ptr, int *height_ptr, const char *str);
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INT64 gettime(void);
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INT64 parse_date(const char *datestr, int duration);
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/* ffm specific for ffserver */
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#define FFM_PACKET_SIZE 4096
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offset_t ffm_read_write_index(int fd);
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void ffm_write_write_index(int fd, offset_t pos);
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void ffm_set_write_index(AVFormatContext *s, offset_t pos, offset_t file_size);
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int find_info_tag(char *arg, int arg_size, const char *tag1, const char *info);
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int get_frame_filename(char *buf, int buf_size,
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const char *path, int number);
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/* grab/output specific */
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extern AVFormat video_grab_device_format;
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extern AVFormat audio_device_format;
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extern const char *v4l_device;
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extern const char *audio_device;
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