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added stream start time and duration API - AV_NOPTS_VALUE is no longer zero

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Originally committed as revision 2108 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Fabrice Bellard 2003-08-08 17:49:27 +00:00
parent c965f94346
commit ee40480319
1 changed files with 34 additions and 4 deletions
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38
libavformat/avformat.h
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@ -7,7 +7,7 @@ extern "C" {
#define LIBAVFORMAT_VERSION_INT 0x000406 #define LIBAVFORMAT_VERSION_INT 0x000406
#define LIBAVFORMAT_VERSION "0.4.6" #define LIBAVFORMAT_VERSION "0.4.6"
#define LIBAVFORMAT_BUILD 4605 #define LIBAVFORMAT_BUILD 4606
#include "avcodec.h" #include "avcodec.h"
@ -15,7 +15,16 @@ extern "C" {
/* packet functions */ /* 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
#define AV_NOPTS_VALUE MININT64
#define AV_TIME_BASE 1000000
typedef struct AVPacket { typedef struct AVPacket {
int64_t pts; /* presentation time stamp in stream units (set av_set_pts_info) */ int64_t pts; /* presentation time stamp in stream units (set av_set_pts_info) */
@ -164,7 +173,6 @@ typedef struct AVStream {
AVCodecContext codec; /* codec context */ AVCodecContext codec; /* codec context */
int r_frame_rate; /* real frame rate of the stream */ int r_frame_rate; /* real frame rate of the stream */
int r_frame_rate_base;/* real frame rate base of the stream */ int r_frame_rate_base;/* real frame rate base of the stream */
uint64_t time_length; /* real length of the stream in miliseconds */
void *priv_data; void *priv_data;
/* internal data used in av_find_stream_info() */ /* internal data used in av_find_stream_info() */
int codec_info_state; int codec_info_state;
@ -177,6 +185,12 @@ typedef struct AVStream {
/* quality, as it has been removed from AVCodecContext and put in AVVideoFrame /* quality, as it has been removed from AVCodecContext and put in AVVideoFrame
* MN:dunno if thats the right place, for it */ * 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;
/* decoding: duration of the stream, in AV_TIME_BASE fractional
seconds. */
int64_t duration;
} AVStream; } AVStream;
#define MAX_STREAMS 20 #define MAX_STREAMS 20
@ -203,7 +217,22 @@ typedef struct AVFormatContext {
/* This buffer is only needed when packets were already buffered but /* This buffer is only needed when packets were already buffered but
not decoded, for example to get the codec parameters in mpeg not decoded, for example to get the codec parameters in mpeg
streams */ 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;
} AVFormatContext; } AVFormatContext;
typedef struct AVPacketList { typedef struct AVPacketList {
@ -274,6 +303,7 @@ extern AVImageFormat gif_image_format;
/* modules */ /* modules */
/* mpeg.c */ /* mpeg.c */
extern AVInputFormat mpegps_demux;
int mpegps_init(void); int mpegps_init(void);
/* mpegts.c */ /* mpegts.c */