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avio: Collect and print statistics of bytes read & seeks

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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2012-06-02 23:01:13 +02:00
parent f77a695d2e
commit 11153a9371
2 changed files with 16 additions and 0 deletions
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12
libavformat/avio.h
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@ -128,6 +128,18 @@ typedef struct {
* call the underlying seek function directly.
*/
int direct;
/**
* Bytes read statistic
* This field is internal to libavformat and access from outside is not allowed.
*/
int64_t bytes_read;
/**
* seek statistic
* This field is internal to libavformat and access from outside is not allowed.
*/
int seek_count;
} AVIOContext;
/* unbuffered I/O */

4
libavformat/aviobuf.c
View File

@ -237,6 +237,7 @@ int64_t avio_seek(AVIOContext *s, int64_t offset, int whence)
return AVERROR(EPIPE);
if ((res = s->seek(s->opaque, offset, SEEK_SET)) < 0)
return res;
s->seek_count ++;
if (!s->write_flag)
s->buf_end = s->buffer;
s->buf_ptr = s->buffer;
@ -423,6 +424,7 @@ static void fill_buffer(AVIOContext *s)
s->pos += len;
s->buf_ptr = dst;
s->buf_end = dst + len;
s->bytes_read += len;
}
}
@ -792,6 +794,8 @@ int avio_close(AVIOContext *s)
h = s->opaque;
av_free(s->buffer);
if (!s->write_flag)
av_log(s, AV_LOG_DEBUG, "Statistics: %"PRId64" bytes read, %d seeks\n", s->bytes_read, s->seek_count);
av_free(s);
return ffurl_close(h);
}