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ffmpeg.wasm-core
Commit f5f1cf52 authored by Luca Barbato's avatar Luca Barbato
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oggdec: K&R cosmetic formatting

parent 7e98956e
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Inline Side-by-side
Showing with 128 additions and 117 deletions
libavformat/oggdec.c
View file @ f5f1cf52
......@@ -60,18 +60,18 @@ static int ogg_save(AVFormatContext *s)
{
struct ogg *ogg = s->priv_data;
struct ogg_state *ost =
av_malloc(sizeof (*ost) + (ogg->nstreams-1) * sizeof (*ogg->streams));
av_malloc(sizeof(*ost) + (ogg->nstreams - 1) * sizeof(*ogg->streams));
int i;
ost->pos = avio_tell (s->pb);
ost->pos = avio_tell(s->pb);
ost->curidx = ogg->curidx;
ost->next = ogg->state;
ost->nstreams = ogg->nstreams;
memcpy(ost->streams, ogg->streams, ogg->nstreams * sizeof(*ogg->streams));
for (i = 0; i < ogg->nstreams; i++){
for (i = 0; i < ogg->nstreams; i++) {
struct ogg_stream *os = ogg->streams + i;
os->buf = av_mallocz (os->bufsize + FF_INPUT_BUFFER_PADDING_SIZE);
memcpy (os->buf, ost->streams[i].buf, os->bufpos);
os->buf = av_mallocz(os->bufsize + FF_INPUT_BUFFER_PADDING_SIZE);
memcpy(os->buf, ost->streams[i].buf, os->bufpos);
}
ogg->state = ost;
......@@ -91,17 +91,17 @@ static int ogg_restore(AVFormatContext *s, int discard)
ogg->state = ost->next;
if (!discard){
if (!discard) {
struct ogg_stream *old_streams = ogg->streams;
for (i = 0; i < ogg->nstreams; i++)
av_free (ogg->streams[i].buf);
av_free(ogg->streams[i].buf);
avio_seek (bc, ost->pos, SEEK_SET);
avio_seek(bc, ost->pos, SEEK_SET);
ogg->curidx = ost->curidx;
ogg->nstreams = ost->nstreams;
ogg->streams = av_realloc (ogg->streams,
ogg->nstreams * sizeof (*ogg->streams));
ogg->streams = av_realloc(ogg->streams,
ogg->nstreams * sizeof(*ogg->streams));
if (ogg->streams) {
memcpy(ogg->streams, ost->streams,
......@@ -112,7 +112,7 @@ static int ogg_restore(AVFormatContext *s, int discard)
}
}
av_free (ost);
av_free(ost);
return 0;
}
......@@ -121,7 +121,7 @@ static int ogg_reset(struct ogg *ogg)
{
int i;
for (i = 0; i < ogg->nstreams; i++){
for (i = 0; i < ogg->nstreams; i++) {
struct ogg_stream *os = ogg->streams + i;
os->bufpos = 0;
os->pstart = 0;
......@@ -147,7 +147,7 @@ static const struct ogg_codec *ogg_find_codec(uint8_t *buf, int size)
for (i = 0; ogg_codecs[i]; i++)
if (size >= ogg_codecs[i]->magicsize &&
!memcmp (buf, ogg_codecs[i]->magic, ogg_codecs[i]->magicsize))
!memcmp(buf, ogg_codecs[i]->magic, ogg_codecs[i]->magicsize))
return ogg_codecs[i];
return NULL;
......@@ -155,15 +155,15 @@ static const struct ogg_codec *ogg_find_codec(uint8_t *buf, int size)
static int ogg_new_stream(AVFormatContext *s, uint32_t serial, int new_avstream)
{
struct ogg *ogg = s->priv_data;
int idx = ogg->nstreams++;
AVStream *st;
struct ogg_stream *os;
ogg->streams = av_realloc (ogg->streams,
ogg->nstreams * sizeof (*ogg->streams));
memset (ogg->streams + idx, 0, sizeof (*ogg->streams));
ogg->streams = av_realloc(ogg->streams,
ogg->nstreams * sizeof(*ogg->streams));
memset(ogg->streams + idx, 0, sizeof(*ogg->streams));
os = ogg->streams + idx;
os->serial = serial;
os->bufsize = DECODER_BUFFER_SIZE;
......@@ -188,10 +188,12 @@ static int ogg_new_buf(struct ogg *ogg, int idx)
struct ogg_stream *os = ogg->streams + idx;
uint8_t *nb = av_malloc(os->bufsize + FF_INPUT_BUFFER_PADDING_SIZE);
int size = os->bufpos - os->pstart;
if(os->buf){
if (os->buf) {
memcpy(nb, os->buf + os->pstart, size);
av_free(os->buf);
}
os->buf = nb;
os->bufpos = size;
os->pstart = 0;
......@@ -216,7 +218,7 @@ static int ogg_read_page(AVFormatContext *s, int *str)
if (ret < 4)
return ret < 0 ? ret : AVERROR_EOF;
do{
do {
int c;
if (sync[sp & 3] == 'O' &&
......@@ -225,13 +227,15 @@ static int ogg_read_page(AVFormatContext *s, int *str)
break;
c = avio_r8(bc);
if (bc->eof_reached)
return AVERROR_EOF;
sync[sp++ & 3] = c;
}while (i++ < MAX_PAGE_SIZE);
} while (i++ < MAX_PAGE_SIZE);
if (i >= MAX_PAGE_SIZE){
av_log (s, AV_LOG_INFO, "ogg, can't find sync word\n");
if (i >= MAX_PAGE_SIZE) {
av_log(s, AV_LOG_INFO, "cannot find sync word\n");
return AVERROR_INVALIDDATA;
}
......@@ -239,23 +243,26 @@ static int ogg_read_page(AVFormatContext *s, int *str)
return AVERROR_INVALIDDATA;
flags = avio_r8(bc);
gp = avio_rl64 (bc);
serial = avio_rl32 (bc);
gp = avio_rl64(bc);
serial = avio_rl32(bc);
avio_skip(bc, 8); /* seq, crc */
nsegs = avio_r8(bc);
idx = ogg_find_stream (ogg, serial);
if (idx < 0){
idx = ogg_find_stream(ogg, serial);
if (idx < 0) {
if (ogg->headers) {
int n;
for (n = 0; n < ogg->nstreams; n++) {
av_freep(&ogg->streams[n].buf);
if (!ogg->state || ogg->state->streams[n].private != ogg->streams[n].private)
if (!ogg->state ||
ogg->state->streams[n].private != ogg->streams[n].private)
av_freep(&ogg->streams[n].private);
}
ogg->curidx = -1;
ogg->nstreams = 0;
idx = ogg_new_stream(s, serial, 0);
} else {
idx = ogg_new_stream(s, serial, 1);
......@@ -267,7 +274,7 @@ static int ogg_read_page(AVFormatContext *s, int *str)
os = ogg->streams + idx;
os->page_pos = avio_tell(bc) - 27;
if(os->psize > 0)
if (os->psize > 0)
ogg_new_buf(ogg, idx);
ret = avio_read(bc, os->segments, nsegs);
......@@ -281,9 +288,9 @@ static int ogg_read_page(AVFormatContext *s, int *str)
for (i = 0; i < nsegs; i++)
size += os->segments[i];
if (flags & OGG_FLAG_CONT || os->incomplete){
if (!os->psize){
while (os->segp < os->nsegs){
if (flags & OGG_FLAG_CONT || os->incomplete) {
if (!os->psize) {
while (os->segp < os->nsegs) {
int seg = os->segments[os->segp++];
os->pstart += seg;
if (seg < 255)
......@@ -291,15 +298,15 @@ static int ogg_read_page(AVFormatContext *s, int *str)
}
os->sync_pos = os->page_pos;
}
}else{
} else {
os->psize = 0;
os->sync_pos = os->page_pos;
}
if (os->bufsize - os->bufpos < size){
uint8_t *nb = av_malloc ((os->bufsize *= 2) + FF_INPUT_BUFFER_PADDING_SIZE);
memcpy (nb, os->buf, os->bufpos);
av_free (os->buf);
if (os->bufsize - os->bufpos < size) {
uint8_t *nb = av_malloc((os->bufsize *= 2) + FF_INPUT_BUFFER_PADDING_SIZE);
memcpy(nb, os->buf, os->bufpos);
av_free(os->buf);
os->buf = nb;
}
......@@ -329,10 +336,10 @@ static int ogg_packet(AVFormatContext *s, int *str, int *dstart, int *dsize,
av_dlog(s, "ogg_packet: curidx=%i\n", ogg->curidx);
do{
do {
idx = ogg->curidx;
while (idx < 0){
while (idx < 0) {
ret = ogg_read_page(s, &idx);
if (ret < 0)
return ret;
......@@ -343,15 +350,15 @@ static int ogg_packet(AVFormatContext *s, int *str, int *dstart, int *dsize,
av_dlog(s, "ogg_packet: idx=%d pstart=%d psize=%d segp=%d nsegs=%d\n",
idx, os->pstart, os->psize, os->segp, os->nsegs);
if (!os->codec){
if (os->header < 0){
os->codec = ogg_find_codec (os->buf, os->bufpos);
if (!os->codec){
if (!os->codec) {
if (os->header < 0) {
os->codec = ogg_find_codec(os->buf, os->bufpos);
if (!os->codec) {
av_log(s, AV_LOG_WARNING, "Codec not found\n");
os->header = 0;
return 0;
}
}else{
} else {
return 0;
}
}
......@@ -359,33 +366,35 @@ static int ogg_packet(AVFormatContext *s, int *str, int *dstart, int *dsize,
segp = os->segp;
psize = os->psize;
while (os->segp < os->nsegs){
while (os->segp < os->nsegs) {
int ss = os->segments[os->segp++];
os->psize += ss;
if (ss < 255){
if (ss < 255) {
complete = 1;
break;
}
}
if (!complete && os->segp == os->nsegs){
if (!complete && os->segp == os->nsegs) {
ogg->curidx = -1;
os->incomplete = 1;
}
}while (!complete);
} while (!complete);
av_dlog(s, "ogg_packet: idx %i, frame size %i, start %i\n",
idx, os->psize, os->pstart);
if (os->granule == -1)
av_log(s, AV_LOG_WARNING, "Page at %"PRId64" is missing granule\n", os->page_pos);
av_log(s, AV_LOG_WARNING,
"Page at %"PRId64" is missing granule\n",
os->page_pos);
ogg->curidx = idx;
os->incomplete = 0;
if (os->header) {
os->header = os->codec->header (s, idx);
if (!os->header){
os->header = os->codec->header(s, idx);
if (!os->header) {
os->segp = segp;
os->psize = psize;
......@@ -398,6 +407,7 @@ static int ogg_packet(AVFormatContext *s, int *str, int *dstart, int *dsize,
// compute the data_offset.
if (!s->data_offset)
s->data_offset = os->sync_pos;
for (i = 0; i < ogg->nstreams; i++) {
struct ogg_stream *cur_os = ogg->streams + i;
......@@ -406,7 +416,7 @@ static int ogg_packet(AVFormatContext *s, int *str, int *dstart, int *dsize,
if (cur_os->incomplete)
s->data_offset = FFMIN(s->data_offset, cur_os->sync_pos);
}
}else{
} else {
os->nb_header++;
os->pstart += os->psize;
os->psize = 0;
......@@ -415,7 +425,7 @@ static int ogg_packet(AVFormatContext *s, int *str, int *dstart, int *dsize,
os->pflags = 0;
os->pduration = 0;
if (os->codec && os->codec->packet)
os->codec->packet (s, idx);
os->codec->packet(s, idx);
if (str)
*str = idx;
if (dstart)
......@@ -449,11 +459,11 @@ static int ogg_get_headers(AVFormatContext *s)
struct ogg *ogg = s->priv_data;
int ret, i;
do{
do {
ret = ogg_packet(s, NULL, NULL, NULL, NULL);
if (ret < 0)
return ret;
}while (!ogg->headers);
} while (!ogg->headers);
for (i = 0; i < ogg->nstreams; i++) {
struct ogg_stream *os = ogg->streams + i;
......@@ -479,7 +489,7 @@ static int ogg_get_length(AVFormatContext *s)
int i;
int64_t size, end;
if(!s->pb->seekable)
if (!s->pb->seekable)
return 0;
// already set
......@@ -487,24 +497,24 @@ static int ogg_get_length(AVFormatContext *s)
return 0;
size = avio_size(s->pb);
if(size < 0)
if (size < 0)
return 0;
end = size > MAX_PAGE_SIZE? size - MAX_PAGE_SIZE: 0;
end = size > MAX_PAGE_SIZE ? size - MAX_PAGE_SIZE : 0;
ogg_save (s);
avio_seek (s->pb, end, SEEK_SET);
ogg_save(s);
avio_seek(s->pb, end, SEEK_SET);
while (!ogg_read_page (s, &i)){
while (!ogg_read_page(s, &i)) {
if (ogg->streams[i].granule != -1 && ogg->streams[i].granule != 0 &&
ogg->streams[i].codec) {
s->streams[i]->duration =
ogg_gptopts (s, i, ogg->streams[i].granule, NULL);
ogg_gptopts(s, i, ogg->streams[i].granule, NULL);
if (s->streams[i]->start_time != AV_NOPTS_VALUE)
s->streams[i]->duration -= s->streams[i]->start_time;
}
}
ogg_restore (s, 0);
ogg_restore(s, 0);
return 0;
}
......@@ -524,7 +534,7 @@ static int ogg_read_header(AVFormatContext *s)
ogg->streams[i].codec = NULL;
//linear granulepos seek from end
ogg_get_length (s);
ogg_get_length(s);
//fill the extradata in the per codec callbacks
return 0;
......@@ -570,11 +580,11 @@ static int ogg_read_packet(AVFormatContext *s, AVPacket *pkt)
//Get an ogg packet
retry:
do{
do {
ret = ogg_packet(s, &idx, &pstart, &psize, &fpos);
if (ret < 0)
return ret;
}while (idx < 0 || !s->streams[idx]);
} while (idx < 0 || !s->streams[idx]);
ogg = s->priv_data;
os = ogg->streams + idx;
......@@ -591,7 +601,7 @@ retry:
if (ret < 0)
return ret;
pkt->stream_index = idx;
memcpy (pkt->data, os->buf + pstart, psize);
memcpy(pkt->data, os->buf + pstart, psize);
pkt->pts = pts;
pkt->dts = dts;
......@@ -607,11 +617,11 @@ static int ogg_read_close(AVFormatContext *s)
struct ogg *ogg = s->priv_data;
int i;
for (i = 0; i < ogg->nstreams; i++){
av_free (ogg->streams[i].buf);
av_free (ogg->streams[i].private);
for (i = 0; i < ogg->nstreams; i++) {
av_free(ogg->streams[i].buf);
av_free(ogg->streams[i].private);
}
av_free (ogg->streams);
av_free(ogg->streams);
return 0;
}
......@@ -625,7 +635,8 @@ static int64_t ogg_read_timestamp(AVFormatContext *s, int stream_index,
avio_seek(bc, *pos_arg, SEEK_SET);
ogg_reset(ogg);
while (avio_tell(bc) < pos_limit && !ogg_packet(s, &i, NULL, NULL, pos_arg)) {
while (avio_tell(bc) < pos_limit &&
!ogg_packet(s, &i, NULL, NULL, pos_arg)) {
if (i == stream_index) {
struct ogg_stream *os = ogg->streams + stream_index;
pts = ogg_calc_pts(s, i, NULL);
......
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