videolan
/
ffmpeg
mirror of https://git.videolan.org/git/ffmpeg.git
1
Fork 0
Code Releases Activity

lavf: deprecate AVFormatContext.file_size 

It's too unreliable to be useful. avio_size() should be called instead.
This commit is contained in:
Anton Khirnov 2011-10-09 14:12:14 +02:00
parent f055635313
commit c10731e78b
6 changed files with 13 additions and 16 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
libavformat/aiffdec.c
View File

@ -268,9 +268,6 @@ static int aiff_read_header(AVFormatContext *s,
got_sound:
/* Now positioned, get the sound data start and end */
if (st->nb_frames)
s->file_size = st->nb_frames * st->codec->block_align;
av_set_pts_info(st, 64, 1, st->codec->sample_rate);
st->start_time = 0;
st->duration = st->codec->frame_size ?

4
libavformat/avformat.h
View File

@ -716,10 +716,12 @@ typedef struct AVFormatContext {
*/
int64_t duration;
#if FF_API_FILESIZE
/**
* decoding: total file size, 0 if unknown
*/
int64_t file_size;
attribute_deprecated int64_t file_size;
#endif
/**
* Decoding: total stream bitrate in bit/s, 0 if not

2
libavformat/cafdec.c
View File

@ -286,8 +286,6 @@ static int read_header(AVFormatContext *s,
"block size or frame size are variable.\n");
return AVERROR_INVALIDDATA;
}
s->file_size = avio_size(pb);
s->file_size = FFMAX(0, s->file_size);
av_set_pts_info(st, 64, 1, st->codec->sample_rate);
st->start_time = 0;

3
libavformat/qcp.c
View File

@ -92,8 +92,7 @@ static int qcp_read_header(AVFormatContext *s, AVFormatParameters *ap)
return AVERROR(ENOMEM);
avio_rb32(pb); // "RIFF"
s->file_size = avio_rl32(pb) + 8;
avio_skip(pb, 8 + 4 + 1 + 1); // "QLCMfmt " + chunk-size + major-version + minor-version
avio_skip(pb, 4 + 8 + 4 + 1 + 1); // filesize + "QLCMfmt " + chunk-size + major-version + minor-version
st->codec->codec_type = AVMEDIA_TYPE_AUDIO;
st->codec->channels = 1;

14
libavformat/utils.c
View File

@ -1837,7 +1837,7 @@ static int has_duration(AVFormatContext *ic)
static void update_stream_timings(AVFormatContext *ic)
{
int64_t start_time, start_time1, end_time, end_time1;
int64_t duration, duration1;
int64_t duration, duration1, filesize;
int i;
AVStream *st;
@ -1872,9 +1872,9 @@ static void update_stream_timings(AVFormatContext *ic)
}
if (duration != INT64_MIN) {
ic->duration = duration;
if (ic->file_size > 0) {
if (ic->pb && (filesize = avio_size(ic->pb)) > 0) {
/* compute the bitrate */
ic->bit_rate = (double)ic->file_size * 8.0 * AV_TIME_BASE /
ic->bit_rate = (double)filesize * 8.0 * AV_TIME_BASE /
(double)ic->duration;
}
}
@ -1916,9 +1916,8 @@ static void estimate_timings_from_bit_rate(AVFormatContext *ic)
/* if duration is already set, we believe it */
if (ic->duration == AV_NOPTS_VALUE &&
ic->bit_rate != 0 &&
ic->file_size != 0) {
filesize = ic->file_size;
ic->bit_rate != 0) {
filesize = ic->pb ? avio_size(ic->pb) : 0;
if (filesize > 0) {
for(i = 0; i < ic->nb_streams; i++) {
st = ic->streams[i];
@ -1962,7 +1961,7 @@ static void estimate_timings_from_pts(AVFormatContext *ic, int64_t old_offset)
/* estimate the end time (duration) */
/* XXX: may need to support wrapping */
filesize = ic->file_size;
filesize = ic->pb ? avio_size(ic->pb) : 0;
end_time = AV_NOPTS_VALUE;
do{
offset = filesize - (DURATION_MAX_READ_SIZE<<retry);
@ -2026,7 +2025,6 @@ static void estimate_timings(AVFormatContext *ic, int64_t old_offset)
if (file_size < 0)
file_size = 0;
}
ic->file_size = file_size;
if ((!strcmp(ic->iformat->name, "mpeg") ||
!strcmp(ic->iformat->name, "mpegts")) &&

3
libavformat/version.h
View File

@ -86,5 +86,8 @@
#ifndef FF_API_TIMESTAMP
#define FF_API_TIMESTAMP (LIBAVFORMAT_VERSION_MAJOR < 54)
#endif
#ifndef FF_API_FILESIZE
#define FF_API_FILESIZE (LIBAVFORMAT_VERSION_MAJOR < 54)
#endif
#endif /* AVFORMAT_VERSION_H */