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avio: introduce an AVIOContext.seekable field 

Use it instead of url_is_streamed and AVIOContext.is_streamed.
This commit is contained in:
Anton Khirnov 2011-03-05 21:06:46 +01:00
parent 79997def65
commit 8978fedaee
40 changed files with 91 additions and 72 deletions
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8
ffserver.c
View File

@ -2260,7 +2260,7 @@ static int http_prepare_data(HTTPContext *c)
/* XXX: potential leak */
return -1;
}
c->fmt_ctx.pb->is_streamed = 1;
c->fmt_ctx.pb->seekable = 0;
/*
* HACK to avoid mpeg ps muxer to spit many underflow errors
@ -2399,7 +2399,7 @@ static int http_prepare_data(HTTPContext *c)
}
ost = ctx->streams[pkt.stream_index];
ctx->pb->is_streamed = 1;
ctx->pb->seekable = 0;
if (pkt.dts != AV_NOPTS_VALUE)
pkt.dts = av_rescale_q(pkt.dts, ist->time_base, ost->time_base);
if (pkt.pts != AV_NOPTS_VALUE)
@ -2436,7 +2436,7 @@ static int http_prepare_data(HTTPContext *c)
/* XXX: potential leak */
return -1;
}
c->fmt_ctx.pb->is_streamed = 1;
c->fmt_ctx.pb->seekable = 0;
av_write_trailer(ctx);
len = url_close_dyn_buf(ctx->pb, &c->pb_buffer);
c->buffer_ptr = c->pb_buffer;
@ -2723,7 +2723,7 @@ static int http_receive_data(HTTPContext *c)
pb = avio_alloc_context(c->buffer, c->buffer_end - c->buffer,
0, NULL, NULL, NULL, NULL);
pb->is_streamed = 1;
pb->seekable = 0;
if (av_open_input_stream(&s, pb, c->stream->feed_filename, fmt_in, NULL) < 0) {
av_free(pb);

2
libavformat/aiffdec.c
View File

@ -238,7 +238,7 @@ static int aiff_read_header(AVFormatContext *s,
offset += avio_tell(pb); /* Compute absolute data offset */
if (st->codec->block_align) /* Assume COMM already parsed */
goto got_sound;
if (url_is_streamed(pb)) {
if (!pb->seekable) {
av_log(s, AV_LOG_ERROR, "file is not seekable\n");
return -1;
}

2
libavformat/aiffenc.c
View File

@ -124,7 +124,7 @@ static int aiff_write_trailer(AVFormatContext *s)
end_size++;
}
if (!url_is_streamed(s->pb)) {
if (s->pb->seekable) {
/* File length */
avio_seek(pb, aiff->form, SEEK_SET);
avio_wb32(pb, file_size - aiff->form - 4);

2
libavformat/ape.c
View File

@ -296,7 +296,7 @@ static int ape_read_header(AVFormatContext * s, AVFormatParameters * ap)
ape_dumpinfo(s, ape);
/* try to read APE tags */
if (!url_is_streamed(pb)) {
if (pb->seekable) {
ff_ape_parse_tag(s);
avio_seek(pb, 0, SEEK_SET);
}

4
libavformat/asfenc.c
View File

@ -347,7 +347,7 @@ static int asf_write_header1(AVFormatContext *s, int64_t file_size, int64_t data
avio_wl64(pb, duration); /* end time stamp (in 100ns units) */
avio_wl64(pb, asf->duration); /* duration (in 100ns units) */
avio_wl64(pb, PREROLL_TIME); /* start time stamp */
avio_wl32(pb, (asf->is_streamed || url_is_streamed(pb)) ? 3 : 2); /* ??? */
avio_wl32(pb, (asf->is_streamed || !pb->seekable ) ? 3 : 2); /* ??? */
avio_wl32(pb, s->packet_size); /* packet size */
avio_wl32(pb, s->packet_size); /* packet size */
avio_wl32(pb, bit_rate); /* Nominal data rate in bps */
@ -866,7 +866,7 @@ static int asf_write_trailer(AVFormatContext *s)
}
avio_flush(s->pb);
if (asf->is_streamed || url_is_streamed(s->pb)) {
if (asf->is_streamed || !s->pb->seekable) {
put_chunk(s, 0x4524, 0, 0); /* end of stream */
} else {
/* rewrite an updated header */

2
libavformat/au.c
View File

@ -91,7 +91,7 @@ static int au_write_trailer(AVFormatContext *s)
AVIOContext *pb = s->pb;
int64_t file_size;
if (!url_is_streamed(s->pb)) {
if (s->pb->seekable) {
/* update file size */
file_size = avio_tell(pb);

4
libavformat/avidec.c
View File

@ -665,7 +665,7 @@ static int avi_read_header(AVFormatContext *s, AVFormatParameters *ap)
break;
case MKTAG('i', 'n', 'd', 'x'):
i= avio_tell(pb);
if(!url_is_streamed(pb) && !(s->flags & AVFMT_FLAG_IGNIDX)){
if(pb->seekable && !(s->flags & AVFMT_FLAG_IGNIDX)){
read_braindead_odml_indx(s, 0);
}
avio_seek(pb, i+size, SEEK_SET);
@ -721,7 +721,7 @@ static int avi_read_header(AVFormatContext *s, AVFormatParameters *ap)
return -1;
}
if(!avi->index_loaded && !url_is_streamed(pb))
if(!avi->index_loaded && pb->seekable)
avi_load_index(s);
avi->index_loaded = 1;
avi->non_interleaved |= guess_ni_flag(s);

18
libavformat/avienc.c
View File

@ -197,7 +197,7 @@ static int avi_write_header(AVFormatContext *s)
}
avio_wl32(pb, bitrate / 8); /* XXX: not quite exact */
avio_wl32(pb, 0); /* padding */
if (url_is_streamed(pb))
if (!pb->seekable)
avio_wl32(pb, AVIF_TRUSTCKTYPE | AVIF_ISINTERLEAVED); /* flags */
else
avio_wl32(pb, AVIF_TRUSTCKTYPE | AVIF_HASINDEX | AVIF_ISINTERLEAVED); /* flags */
@ -259,7 +259,7 @@ static int avi_write_header(AVFormatContext *s)
avio_wl32(pb, 0); /* start */
avist->frames_hdr_strm = avio_tell(pb); /* remember this offset to fill later */
if (url_is_streamed(pb))
if (!pb->seekable)
avio_wl32(pb, AVI_MAX_RIFF_SIZE); /* FIXME: this may be broken, but who cares */
else
avio_wl32(pb, 0); /* length, XXX: filled later */
@ -303,7 +303,7 @@ static int avi_write_header(AVFormatContext *s)
}
}
if (!url_is_streamed(pb)) {
if (pb->seekable) {
unsigned char tag[5];
int j;
@ -362,7 +362,7 @@ static int avi_write_header(AVFormatContext *s)
ff_end_tag(pb, list2);
}
if (!url_is_streamed(pb)) {
if (pb->seekable) {
/* AVI could become an OpenDML one, if it grows beyond 2Gb range */
avi->odml_list = ff_start_tag(pb, "JUNK");
ffio_wfourcc(pb, "odml");
@ -406,7 +406,7 @@ static int avi_write_ix(AVFormatContext *s)
char ix_tag[] = "ix00";
int i, j;
assert(!url_is_streamed(pb));
assert(pb->seekable);
if (avi->riff_id > AVI_MASTER_INDEX_SIZE)
return -1;
@ -464,7 +464,7 @@ static int avi_write_idx1(AVFormatContext *s)
int i;
char tag[5];
if (!url_is_streamed(pb)) {
if (pb->seekable) {
AVIStream *avist;
AVIIentry* ie = 0, *tie;
int empty, stream_id = -1;
@ -532,7 +532,7 @@ static int avi_write_packet(AVFormatContext *s, AVPacket *pkt)
avist->packet_count++;
// Make sure to put an OpenDML chunk when the file size exceeds the limits
if (!url_is_streamed(pb) &&
if (pb->seekable &&
(avio_tell(pb) - avi->riff_start > AVI_MAX_RIFF_SIZE)) {
avi_write_ix(s);
@ -552,7 +552,7 @@ static int avi_write_packet(AVFormatContext *s, AVPacket *pkt)
avist->audio_strm_length += size;
}
if (!url_is_streamed(s->pb)) {
if (s->pb->seekable) {
AVIIndex* idx = &avist->indexes;
int cl = idx->entry / AVI_INDEX_CLUSTER_SIZE;
int id = idx->entry % AVI_INDEX_CLUSTER_SIZE;
@ -590,7 +590,7 @@ static int avi_write_trailer(AVFormatContext *s)
int i, j, n, nb_frames;
int64_t file_size;
if (!url_is_streamed(pb)){
if (pb->seekable){
if (avi->riff_id == 1) {
ff_end_tag(pb, avi->movi_list);
res = avi_write_idx1(s);

19
libavformat/avio.h
View File

@ -332,6 +332,8 @@ attribute_deprecated int av_register_protocol(URLProtocol *protocol);
*/
int av_register_protocol2(URLProtocol *protocol, int size);
#define AVIO_SEEKABLE_NORMAL 0x0001 /**< Seeking works like for a local file */
/**
* Bytestream IO Context.
* New fields can be added to the end with minor version bumps.
@ -351,7 +353,9 @@ typedef struct {
int must_flush; /**< true if the next seek should flush */
int eof_reached; /**< true if eof reached */
int write_flag; /**< true if open for writing */
int is_streamed;
#if FF_API_OLD_AVIO
attribute_deprecated int is_streamed;
#endif
int max_packet_size;
unsigned long checksum;
unsigned char *checksum_ptr;
@ -360,6 +364,10 @@ typedef struct {
int (*read_pause)(void *opaque, int pause);
int64_t (*read_seek)(void *opaque, int stream_index,
int64_t timestamp, int flags);
/**
* A combination of AVIO_SEEKABLE_ flags or 0 when the stream is not seekable.
*/
int seekable;
} AVIOContext;
#if FF_API_OLD_AVIO
@ -604,10 +612,15 @@ unsigned int avio_rb24(AVIOContext *s);
unsigned int avio_rb32(AVIOContext *s);
uint64_t avio_rb64(AVIOContext *s);
static inline int url_is_streamed(AVIOContext *s)
#if FF_API_OLD_AVIO
/**
* @deprecated Use AVIOContext.seekable field directly.
*/
attribute_deprecated static inline int url_is_streamed(AVIOContext *s)
{
return s->is_streamed;
return !s->seekable;
}
#endif
/**
* Create and initialize a AVIOContext for accessing the

8
libavformat/aviobuf.c
View File

@ -62,7 +62,10 @@ int ffio_init_context(AVIOContext *s,
s->must_flush = 0;
s->eof_reached = 0;
s->error = 0;
#if FF_API_OLD_AVIO
s->is_streamed = 0;
#endif
s->seekable = AVIO_SEEKABLE_NORMAL;
s->max_packet_size = 0;
s->update_checksum= NULL;
if(!read_packet && !write_flag){
@ -202,7 +205,7 @@ int64_t avio_seek(AVIOContext *s, int64_t offset, int whence)
offset1 >= 0 && offset1 <= (s->buf_end - s->buffer)) {
/* can do the seek inside the buffer */
s->buf_ptr = s->buffer + offset1;
} else if ((s->is_streamed ||
} else if ((!s->seekable ||
offset1 <= s->buf_end + SHORT_SEEK_THRESHOLD - s->buffer) &&
!s->write_flag && offset1 >= 0 &&
(whence != SEEK_END || force)) {
@ -831,7 +834,10 @@ int url_fdopen(AVIOContext **s, URLContext *h)
av_freep(s);
return AVERROR(EIO);
}
#if FF_API_OLD_AVIO
(*s)->is_streamed = h->is_streamed;
#endif
(*s)->seekable = h->is_streamed ? 0 : AVIO_SEEKABLE_NORMAL;
(*s)->max_packet_size = max_packet_size;
if(h->prot) {
(*s)->read_pause = (int (*)(void *, int))h->prot->url_read_pause;

2
libavformat/bink.c
View File

@ -247,7 +247,7 @@ static int read_seek(AVFormatContext *s, int stream_index, int64_t timestamp, in
BinkDemuxContext *bink = s->priv_data;
AVStream *vst = s->streams[0];
if (url_is_streamed(s->pb))
if (!s->pb->seekable)
return -1;
/* seek to the first frame */

4
libavformat/cafdec.c
View File

@ -223,7 +223,7 @@ static int read_header(AVFormatContext *s,
/* stop at data chunk if seeking is not supported or
data chunk size is unknown */
if (found_data && (caf->data_size < 0 || url_is_streamed(pb)))
if (found_data && (caf->data_size < 0 || !pb->seekable))
break;
tag = avio_rb32(pb);
@ -236,7 +236,7 @@ static int read_header(AVFormatContext *s,
avio_skip(pb, 4); /* edit count */
caf->data_start = avio_tell(pb);
caf->data_size = size < 0 ? -1 : size - 4;
if (caf->data_size > 0 && !url_is_streamed(pb))
if (caf->data_size > 0 && pb->seekable)
avio_skip(pb, caf->data_size);
found_data = 1;
break;

2
libavformat/ffmdec.c
View File

@ -281,7 +281,7 @@ static int ffm_read_header(AVFormatContext *s, AVFormatParameters *ap)
goto fail;
ffm->write_index = avio_rb64(pb);
/* get also filesize */
if (!url_is_streamed(pb)) {
if (pb->seekable) {
ffm->file_size = avio_size(pb);
if (ffm->write_index)
adjust_write_index(s);

2
libavformat/filmstripdec.c
View File

@ -40,7 +40,7 @@ static int read_header(AVFormatContext *s,
AVIOContext *pb = s->pb;
AVStream *st;
if (url_is_streamed(s->pb))
if (!s->pb->seekable)
return AVERROR(EIO);
avio_seek(pb, avio_size(pb) - 36, SEEK_SET);

2
libavformat/flacenc.c
View File

@ -98,7 +98,7 @@ static int flac_write_trailer(struct AVFormatContext *s)
if (!ff_flac_is_extradata_valid(s->streams[0]->codec, &format, &streaminfo))
return -1;
if (!url_is_streamed(pb)) {
if (pb->seekable) {
/* rewrite the STREAMINFO header block data */
file_size = avio_tell(pb);
avio_seek(pb, 8, SEEK_SET);

4
libavformat/flvdec.c
View File

@ -437,7 +437,7 @@ static int flv_read_packet(AVFormatContext *s, AVPacket *pkt)
}
// if not streamed and no duration from metadata then seek to end to find the duration from the timestamps
if(!url_is_streamed(s->pb) && (!s->duration || s->duration==AV_NOPTS_VALUE)){
if(s->pb->seekable && (!s->duration || s->duration==AV_NOPTS_VALUE)){
int size;
const int64_t pos= avio_tell(s->pb);
const int64_t fsize= avio_size(s->pb);
@ -539,7 +539,7 @@ static int flv_read_seek2(AVFormatContext *s, int stream_index,
if (ts - min_ts > (uint64_t)(max_ts - ts)) flags |= AVSEEK_FLAG_BACKWARD;
if (url_is_streamed(s->pb)) {
if (!s->pb->seekable) {
if (stream_index < 0) {
stream_index = av_find_default_stream_index(s);
if (stream_index < 0)

2
libavformat/gxfenc.c
View File

@ -634,7 +634,7 @@ static int gxf_write_header(AVFormatContext *s)
uint8_t tracks[255] = {0};
int i, media_info = 0;
if (url_is_streamed(pb)) {
if (!pb->seekable) {
av_log(s, AV_LOG_ERROR, "gxf muxer does not support streamed output, patch welcome");
return -1;
}

2
libavformat/id3v1.c
View File

@ -229,7 +229,7 @@ void ff_id3v1_read(AVFormatContext *s)
uint8_t buf[ID3v1_TAG_SIZE];
int64_t filesize, position = avio_tell(s->pb);
if (!url_is_streamed(s->pb)) {
if (s->pb->seekable) {
/* XXX: change that */
filesize = avio_size(s->pb);
if (filesize > 128) {

2
libavformat/matroskadec.c
View File

@ -1117,7 +1117,7 @@ static void matroska_execute_seekhead(MatroskaDemuxContext *matroska)
int i;
// we should not do any seeking in the streaming case
if (url_is_streamed(matroska->ctx->pb) ||
if (!matroska->ctx->pb->seekable ||
(matroska->ctx->flags & AVFMT_FLAG_IGNIDX))
return;

12
libavformat/matroskaenc.c
View File

@ -848,7 +848,7 @@ static int mkv_write_header(AVFormatContext *s)
if (ret < 0) return ret;
}
if (url_is_streamed(s->pb))
if (!s->pb->seekable)
mkv_write_seekhead(pb, mkv->main_seekhead);
mkv->cues = mkv_start_cues(mkv->segment_offset);
@ -1024,7 +1024,7 @@ static int mkv_write_packet_internal(AVFormatContext *s, AVPacket *pkt)
return AVERROR(EINVAL);
}
if (url_is_streamed(s->pb)) {
if (!s->pb->seekable) {
if (!mkv->dyn_bc)
url_open_dyn_buf(&mkv->dyn_bc);
pb = mkv->dyn_bc;
@ -1076,16 +1076,16 @@ static int mkv_copy_packet(MatroskaMuxContext *mkv, const AVPacket *pkt)
static int mkv_write_packet(AVFormatContext *s, AVPacket *pkt)
{
MatroskaMuxContext *mkv = s->priv_data;
AVIOContext *pb = url_is_streamed(s->pb) ? mkv->dyn_bc : s->pb;
AVIOContext *pb = s->pb->seekable ? s->pb : mkv->dyn_bc;
AVCodecContext *codec = s->streams[pkt->stream_index]->codec;
int ret, keyframe = !!(pkt->flags & AV_PKT_FLAG_KEY);
int64_t ts = mkv->tracks[pkt->stream_index].write_dts ? pkt->dts : pkt->pts;
int cluster_size = avio_tell(pb) - (url_is_streamed(s->pb) ? 0 : mkv->cluster_pos);
int cluster_size = avio_tell(pb) - (s->pb->seekable ? mkv->cluster_pos : 0);
// start a new cluster every 5 MB or 5 sec, or 32k / 1 sec for streaming or
// after 4k and on a keyframe
if (mkv->cluster_pos &&
((url_is_streamed(s->pb) && (cluster_size > 32*1024 || ts > mkv->cluster_pts + 1000))
((!s->pb->seekable && (cluster_size > 32*1024 || ts > mkv->cluster_pts + 1000))
|| cluster_size > 5*1024*1024 || ts > mkv->cluster_pts + 5000
|| (codec->codec_type == AVMEDIA_TYPE_VIDEO && keyframe && cluster_size > 4*1024))) {
av_log(s, AV_LOG_DEBUG, "Starting new cluster at offset %" PRIu64
@ -1139,7 +1139,7 @@ static int mkv_write_trailer(AVFormatContext *s)
end_ebml_master(pb, mkv->cluster);
}
if (!url_is_streamed(pb)) {
if (pb->seekable) {
cuespos = mkv_write_cues(pb, mkv->cues, s->nb_streams);
ret = mkv_add_seekhead_entry(mkv->main_seekhead, MATROSKA_ID_CUES , cuespos);

2
libavformat/mmf.c
View File

@ -133,7 +133,7 @@ static int mmf_write_trailer(AVFormatContext *s)
int64_t pos, size;
int gatetime;
if (!url_is_streamed(s->pb)) {
if (s->pb->seekable) {
/* Fill in length fields */
end_tag_be(pb, mmf->awapos);
end_tag_be(pb, mmf->atrpos);

12
libavformat/mov.c
View File

@ -304,7 +304,7 @@ static int mov_read_default(MOVContext *c, AVIOContext *pb, MOVAtom atom)
if (err < 0)
return err;
if (c->found_moov && c->found_mdat &&
(url_is_streamed(pb) || start_pos + a.size == avio_size(pb)))
(!pb->seekable || start_pos + a.size == avio_size(pb)))
return 0;
left = a.size - avio_tell(pb) + start_pos;
if (left > 0) /* skip garbage at atom end */
@ -2354,7 +2354,7 @@ static int mov_read_header(AVFormatContext *s, AVFormatParameters *ap)
mov->fc = s;
/* .mov and .mp4 aren't streamable anyway (only progressive download if moov is before mdat) */
if(!url_is_streamed(pb))
if(pb->seekable)
atom.size = avio_size(pb);
else
atom.size = INT64_MAX;
@ -2370,7 +2370,7 @@ static int mov_read_header(AVFormatContext *s, AVFormatParameters *ap)
}
av_dlog(mov->fc, "on_parse_exit_offset=%lld\n", avio_tell(pb));
if (!url_is_streamed(pb) && mov->chapter_track > 0)
if (pb->seekable && mov->chapter_track > 0)
mov_read_chapters(s);
return 0;
@ -2388,8 +2388,8 @@ static AVIndexEntry *mov_find_next_sample(AVFormatContext *s, AVStream **st)
AVIndexEntry *current_sample = &avst->index_entries[msc->current_sample];
int64_t dts = av_rescale(current_sample->timestamp, AV_TIME_BASE, msc->time_scale);
av_dlog(s, "stream %d, sample %d, dts %"PRId64"\n", i, msc->current_sample, dts);
if (!sample || (url_is_streamed(s->pb) && current_sample->pos < sample->pos) ||
(!url_is_streamed(s->pb) &&
if (!sample || (!s->pb->seekable && current_sample->pos < sample->pos) ||
(s->pb->seekable &&
((msc->pb != s->pb && dts < best_dts) || (msc->pb == s->pb &&
((FFABS(best_dts - dts) <= AV_TIME_BASE && current_sample->pos < sample->pos) ||
(FFABS(best_dts - dts) > AV_TIME_BASE && dts < best_dts)))))) {
@ -2413,7 +2413,7 @@ static int mov_read_packet(AVFormatContext *s, AVPacket *pkt)
sample = mov_find_next_sample(s, &st);
if (!sample) {
mov->found_mdat = 0;
if (!url_is_streamed(s->pb) ||
if (s->pb->seekable||
mov_read_default(mov, s->pb, (MOVAtom){ AV_RL32("root"), INT64_MAX }) < 0 ||
s->pb->eof_reached)
return AVERROR_EOF;

4
libavformat/movenc.c
View File

@ -1955,7 +1955,7 @@ int ff_mov_write_packet(AVFormatContext *s, AVPacket *pkt)
unsigned int samplesInChunk = 0;
int size= pkt->size;
if (url_is_streamed(s->pb)) return 0; /* Can't handle that */
if (!s->pb->seekable) return 0; /* Can't handle that */
if (!size) return 0; /* Discard 0 sized packets */
if (enc->codec_id == CODEC_ID_AMR_NB) {
@ -2090,7 +2090,7 @@ static int mov_write_header(AVFormatContext *s)
MOVMuxContext *mov = s->priv_data;
int i, hint_track = 0;
if (url_is_streamed(s->pb)) {
if (!s->pb->seekable) {
av_log(s, AV_LOG_ERROR, "muxer does not support non seekable output\n");
return -1;
}

2
libavformat/mpc.c
View File

@ -93,7 +93,7 @@ static int mpc_read_header(AVFormatContext *s, AVFormatParameters *ap)
st->duration = c->fcount;
/* try to read APE tags */
if (!url_is_streamed(s->pb)) {
if (s->pb->seekable) {
int64_t pos = avio_tell(s->pb);
ff_ape_parse_tag(s);
if (!av_metadata_get(s->metadata, "", NULL, AV_METADATA_IGNORE_SUFFIX))

2
libavformat/mpeg.c
View File

@ -402,7 +402,7 @@ static int mpegps_read_pes_header(AVFormatContext *s,
int i;
for(i=0; i<s->nb_streams; i++){
if(startcode == s->streams[i]->id &&
!url_is_streamed(s->pb) /* index useless on streams anyway */) {
s->pb->seekable /* index useless on streams anyway */) {
ff_reduce_index(s, i);
av_add_index_entry(s->streams[i], *ppos, dts, 0, 0, AVINDEX_KEYFRAME /* FIXME keyframe? */);
}

2
libavformat/mxfenc.c
View File

@ -1784,7 +1784,7 @@ static int mxf_write_footer(AVFormatContext *s)
mxf_write_klv_fill(s);
mxf_write_random_index_pack(s);
if (!url_is_streamed(s->pb)) {
if (s->pb->seekable) {
avio_seek(pb, 0, SEEK_SET);
if (mxf->edit_unit_byte_count) {
mxf_write_partition(s, 1, 2, header_closed_partition_key, 1);

2
libavformat/nutdec.c
View File

@ -653,7 +653,7 @@ static int nut_read_header(AVFormatContext *s, AVFormatParameters *ap)
s->data_offset= pos-8;
if(!url_is_streamed(bc)){
if(bc->seekable){
int64_t orig_pos= avio_tell(bc);
find_and_decode_index(nut);
avio_seek(bc, orig_pos, SEEK_SET);

2
libavformat/oggdec.c
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@ -455,7 +455,7 @@ ogg_get_length (AVFormatContext * s)
int i;
int64_t size, end;
if(url_is_streamed(s->pb))
if(!s->pb->seekable)
return 0;
// already set

2
libavformat/r3d.c
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@ -177,7 +177,7 @@ static int r3d_read_header(AVFormatContext *s, AVFormatParameters *ap)
s->data_offset = avio_tell(s->pb);
av_dlog(s, "data offset %#llx\n", s->data_offset);
if (url_is_streamed(s->pb))
if (!s->pb->seekable)
return 0;
// find REOB/REOF/REOS to load index
avio_seek(s->pb, avio_size(s->pb)-48-8, SEEK_SET);

2
libavformat/rmdec.c
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@ -481,7 +481,7 @@ static int rm_read_header(AVFormatContext *s, AVFormatParameters *ap)
if (!data_off)
data_off = avio_tell(pb) - 18;
if (indx_off && !url_is_streamed(pb) && !(s->flags & AVFMT_FLAG_IGNIDX) &&
if (indx_off && pb->seekable && !(s->flags & AVFMT_FLAG_IGNIDX) &&
avio_seek(pb, indx_off, SEEK_SET) >= 0) {
rm_read_index(s);
avio_seek(pb, data_off + 18, SEEK_SET);

6
libavformat/rmenc.c
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@ -118,7 +118,7 @@ static int rv10_write_header(AVFormatContext *ctx,
avio_wb32(s, 0); /* data offset : will be patched after */
avio_wb16(s, ctx->nb_streams); /* num streams */
flags = 1 | 2; /* save allowed & perfect play */
if (url_is_streamed(s))
if (!s->seekable)
flags |= 4; /* live broadcast */
avio_wb16(s, flags);
@ -170,7 +170,7 @@ static int rv10_write_header(AVFormatContext *ctx,
avio_wb32(s, 0); /* start time */
avio_wb32(s, BUFFER_DURATION); /* preroll */
/* duration */
if (url_is_streamed(s) || !stream->total_frames)
if (!s->seekable || !stream->total_frames)
avio_wb32(s, (int)(3600 * 1000));
else
avio_wb32(s, (int)(stream->total_frames * 1000 / stream->frame_rate));
@ -434,7 +434,7 @@ static int rm_write_trailer(AVFormatContext *s)
int data_size, index_pos, i;
AVIOContext *pb = s->pb;
if (!url_is_streamed(s->pb)) {
if (s->pb->seekable) {
/* end of file: finish to write header */
index_pos = avio_tell(pb);
data_size = index_pos - rm->data_pos;

2
libavformat/rsoenc.c
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@ -38,7 +38,7 @@ static int rso_write_header(AVFormatContext *s)
return AVERROR_INVALIDDATA;
}
if (url_is_streamed(s->pb)) {
if (!s->pb->seekable) {
av_log(s, AV_LOG_ERROR, "muxer does not support non seekable output\n");
return AVERROR_INVALIDDATA;
}

2
libavformat/soxenc.c
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@ -96,7 +96,7 @@ static int sox_write_trailer(AVFormatContext *s)
AVIOContext *pb = s->pb;
AVCodecContext *enc = s->streams[0]->codec;
if (!url_is_streamed(s->pb)) {
if (s->pb->seekable) {
/* update number of samples */
int64_t file_size = avio_tell(pb);
int64_t num_samples = (file_size - sox->header_size - 4LL) >> 2LL;

2
libavformat/swfenc.c
View File

@ -492,7 +492,7 @@ static int swf_write_trailer(AVFormatContext *s)
avio_flush(s->pb);
/* patch file size and number of frames if not streamed */
if (!url_is_streamed(s->pb) && video_enc) {
if (s->pb->seekable && video_enc) {
file_size = avio_tell(pb);
avio_seek(pb, 4, SEEK_SET);
avio_wl32(pb, file_size);

2
libavformat/tty.c
View File

@ -88,7 +88,7 @@ static int read_header(AVFormatContext *avctx,
/* simulate tty display speed */
s->chars_per_frame = FFMAX(av_q2d(st->time_base) * (ap->sample_rate ? ap->sample_rate : LINE_RATE), 1);
if (!url_is_streamed(avctx->pb)) {
if (avctx->pb->seekable) {
s->fsize = avio_size(avctx->pb);
st->duration = (s->fsize + s->chars_per_frame - 1) / s->chars_per_frame;

2
libavformat/utils.c
View File

@ -2019,7 +2019,7 @@ static void av_estimate_timings(AVFormatContext *ic, int64_t old_offset)
if ((!strcmp(ic->iformat->name, "mpeg") ||
!strcmp(ic->iformat->name, "mpegts")) &&
file_size && !url_is_streamed(ic->pb)) {
file_size && ic->pb->seekable) {
/* get accurate estimate from the PTSes */
av_estimate_timings_from_pts(ic, old_offset);
} else if (av_has_duration(ic)) {

2
libavformat/vc1testenc.c
View File

@ -73,7 +73,7 @@ static int vc1test_write_trailer(AVFormatContext *s)
RCVContext *ctx = s->priv_data;
AVIOContext *pb = s->pb;
if (!url_is_streamed(s->pb)) {
if (s->pb->seekable) {
avio_seek(pb, 0, SEEK_SET);
avio_wl24(pb, ctx->frames);
avio_flush(pb);

2
libavformat/vocdec.c
View File

@ -78,7 +78,7 @@ voc_get_packet(AVFormatContext *s, AVPacket *pkt, AVStream *st, int max_size)
return AVERROR(EIO);
voc->remaining_size = avio_rl24(pb);
if (!voc->remaining_size) {
if (url_is_streamed(s->pb))
if (!s->pb->seekable)
return AVERROR(EIO);
voc->remaining_size = avio_size(pb) - avio_tell(pb);
}

4
libavformat/wav.c
View File

@ -58,7 +58,7 @@ static int wav_write_header(AVFormatContext *s)
ff_end_tag(pb, fmt);
if (s->streams[0]->codec->codec_tag != 0x01 /* hence for all other than PCM */
&& !url_is_streamed(s->pb)) {
&& s->pb->seekable) {
fact = ff_start_tag(pb, "fact");
avio_wl32(pb, 0);
ff_end_tag(pb, fact);
@ -98,7 +98,7 @@ static int wav_write_trailer(AVFormatContext *s)
avio_flush(pb);
if (!url_is_streamed(s->pb)) {
if (s->pb->seekable) {
ff_end_tag(pb, wav->data);
/* update file size */

4
libavformat/wv.c
View File

@ -121,7 +121,7 @@ static int wv_read_block_header(AVFormatContext *ctx, AVIOContext *pb, int appen
}
if((rate == -1 || !chan) && !wc->block_parsed){
int64_t block_end = avio_tell(pb) + wc->blksize - 24;
if(url_is_streamed(pb)){
if(!pb->seekable){
av_log(ctx, AV_LOG_ERROR, "Cannot determine additional parameters\n");
return -1;
}
@ -223,7 +223,7 @@ static int wv_read_header(AVFormatContext *s,
st->start_time = 0;
st->duration = wc->samples;
if(!url_is_streamed(s->pb)) {
if(s->pb->seekable) {
int64_t cur = avio_tell(s->pb);
ff_ape_parse_tag(s);
if(!av_metadata_get(s->metadata, "", NULL, AV_METADATA_IGNORE_SUFFIX))