mirror of
https://github.com/FFmpeg/FFmpeg.git
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128 lines
3.6 KiB
C
128 lines
3.6 KiB
C
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#include "avcodec.h"
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/* byte stream handling */
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typedef struct {
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unsigned char *buffer;
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unsigned char *buf_ptr, *buf_end;
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void *opaque;
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void (*write_packet)(void *opaque, UINT8 *buf, int buf_size);
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int (*write_seek)(void *opaque, long long offset, int whence);
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long long pos; /* position in the file of the current buffer */
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} PutByteContext;
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int init_put_byte(PutByteContext *s,
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unsigned char *buffer,
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int buffer_size,
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void *opaque,
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void (*write_packet)(void *opaque, UINT8 *buf, int buf_size),
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int (*write_seek)(void *opaque, long long offset, int whence));
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void put_byte(PutByteContext *s, int b);
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void put_buffer(PutByteContext *s, unsigned char *buf, int size);
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void put_le32(PutByteContext *s, unsigned int val);
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void put_le64(PutByteContext *s, unsigned long long val);
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void put_le16(PutByteContext *s, unsigned int val);
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void put_tag(PutByteContext *s, char *tag);
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long long put_seek(PutByteContext *s, long long offset, int whence);
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long long put_pos(PutByteContext *s);
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void put_flush_packet(PutByteContext *s);
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/* udp.c */
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typedef struct {
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int udp_socket;
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int max_payload_size; /* in bytes */
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} UDPContext;
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int udp_tx_open(UDPContext *s,
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const char *uri,
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int local_port);
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void udp_tx_close(UDPContext *s);
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void udp_write_data(void *opaque, UINT8 *buf, int size);
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/* generic functions */
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struct AVFormatContext;
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typedef struct AVFormat {
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char *name;
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char *long_name;
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char *mime_type;
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char *extensions; /* comma separated extensions */
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enum CodecID audio_codec;
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enum CodecID video_codec;
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int (*write_header)(struct AVFormatContext *);
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int (*write_audio_frame)(struct AVFormatContext *,
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unsigned char *buf, int size);
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int (*write_video_picture)(struct AVFormatContext *,
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unsigned char *buf, int size);
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int (*write_trailer)(struct AVFormatContext *);
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struct AVFormat *next;
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} AVFormat;
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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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PutByteContext pb;
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AVEncodeContext *video_enc;
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AVEncodeContext *audio_enc;
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int is_streamed; /* true if the stream is generated as being streamed */
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} AVFormatContext;
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extern AVFormat *first_format;
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extern int data_out_size;
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extern const char *comment_string;
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/* rv10enc.c */
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extern AVFormat rm_format;
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extern AVFormat ra_format;
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/* mpegmux.c */
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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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/* jpegenc.c */
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extern AVFormat mpjpeg_format;
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extern AVFormat jpeg_format;
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/* swfenc.c */
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extern AVFormat swf_format;
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/* formats.c */
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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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void register_avencoder(AVEncoder *format);
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AVEncoder *avencoder_find(enum CodecID id);
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void avencoder_string(char *buf, int buf_size, AVEncodeContext *enc);
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int avencoder_open(AVEncodeContext *avctx, AVEncoder *codec);
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int avencoder_encode(AVEncodeContext *avctx, UINT8 *buf, int buf_size, void *data);
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int avencoder_close(AVEncodeContext *avctx);
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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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int strstart(const char *str, const char *val, const char **ptr);
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/* grab.c */
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extern const char *v4l_device;
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long long gettime(void);
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int v4l_init(int rate, int width, int height);
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int v4l_read_picture(UINT8 *picture[3],
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int width, int height,
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int picture_number);
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int audio_open(int freq, int channels);
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