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avformat/mp3dec: cosmetics

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Signed-off-by: Limin Wang <lance.lmwang@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Limin Wang 2019-11-11 09:05:01 +08:00 committed by Michael Niedermayer
parent b25b6432a7
commit 529145168b
1 changed files with 20 additions and 20 deletions
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40
libavformat/mp3dec.c
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@ -77,16 +77,16 @@ static int mp3_read_probe(const AVProbeData *p)
buf0 = p->buf;
end = p->buf + p->buf_size - sizeof(uint32_t);
while(buf0 < end && !*buf0)
while (buf0 < end && !*buf0)
buf0++;
max_frames = 0;
max_framesizes = 0;
buf = buf0;
for(; buf < end; buf= buf2+1) {
for (; buf < end; buf = buf2+1) {
buf2 = buf;
for(framesizes = frames = 0; buf2 < end; frames++) {
for (framesizes = frames = 0; buf2 < end; frames++) {
MPADecodeHeader h;
header = AV_RB32(buf2);
@ -98,7 +98,7 @@ static int mp3_read_probe(const AVProbeData *p)
}
max_frames = FFMAX(max_frames, frames);
max_framesizes = FFMAX(max_framesizes, framesizes);
if(buf == buf0) {
if (buf == buf0) {
first_frames= frames;
if (buf2 == end + sizeof(uint32_t))
whole_used = 1;
@ -107,14 +107,14 @@ static int mp3_read_probe(const AVProbeData *p)
// keep this in sync with ac3 probe, both need to avoid
// issues with MPEG-files!
if (first_frames>=7) return AVPROBE_SCORE_EXTENSION + 1;
else if(max_frames>200 && p->buf_size < 2*max_framesizes)return AVPROBE_SCORE_EXTENSION;
else if(max_frames>=4 && p->buf_size < 2*max_framesizes) return AVPROBE_SCORE_EXTENSION / 2;
else if(ff_id3v2_match(buf0, ID3v2_DEFAULT_MAGIC) && 2*ff_id3v2_tag_len(buf0) >= p->buf_size)
else if (max_frames>200 && p->buf_size < 2*max_framesizes)return AVPROBE_SCORE_EXTENSION;
else if (max_frames>=4 && p->buf_size < 2*max_framesizes) return AVPROBE_SCORE_EXTENSION / 2;
else if (ff_id3v2_match(buf0, ID3v2_DEFAULT_MAGIC) && 2*ff_id3v2_tag_len(buf0) >= p->buf_size)
return p->buf_size < PROBE_BUF_MAX ? AVPROBE_SCORE_EXTENSION / 4 : AVPROBE_SCORE_EXTENSION - 2;
else if(first_frames > 1 && whole_used) return 5;
else if(max_frames>=1 && p->buf_size < 10*max_framesizes) return 1;
else if (first_frames > 1 && whole_used) return 5;
else if (max_frames>=1 && p->buf_size < 10*max_framesizes) return 1;
else return 0;
//mpegps_mp3_unrecognized_format.mpg has max_frames=3
//mpegps_mp3_unrecognized_format.mpg has max_frames=3
}
static void read_xing_toc(AVFormatContext *s, int64_t filesize, int64_t duration)
@ -235,8 +235,8 @@ static void mp3_parse_info_tag(AVFormatContext *s, AVStream *st,
avio_r8(s->pb);
/* Encoder delays */
v= avio_rb24(s->pb);
if(AV_RB32(version) == MKBETAG('L', 'A', 'M', 'E')
v = avio_rb24(s->pb);
if (AV_RB32(version) == MKBETAG('L', 'A', 'M', 'E')
|| AV_RB32(version) == MKBETAG('L', 'a', 'v', 'f')
|| AV_RB32(version) == MKBETAG('L', 'a', 'v', 'c')
) {
@ -319,7 +319,7 @@ static int mp3_parse_vbr_tags(AVFormatContext *s, AVStream *st, int64_t base)
return ret;
else if (ret == 0)
vbrtag_size = c.frame_size;
if(c.layer != 3)
if (c.layer != 3)
return -1;
spf = c.lsf ? 576 : 1152; /* Samples per frame, layer 3 */
@ -374,7 +374,7 @@ static int mp3_read_header(AVFormatContext *s)
if (!av_dict_get(s->metadata, "", NULL, AV_DICT_IGNORE_SUFFIX))
ff_id3v1_read(s);
if(s->pb->seekable & AVIO_SEEKABLE_NORMAL)
if (s->pb->seekable & AVIO_SEEKABLE_NORMAL)
mp3->filesize = avio_size(s->pb);
if (mp3_parse_vbr_tags(s, st, off) < 0)
@ -434,12 +434,12 @@ static int mp3_read_packet(AVFormatContext *s, AVPacket *pkt)
int ret, size;
int64_t pos;
size= MP3_PACKET_SIZE;
size = MP3_PACKET_SIZE;
pos = avio_tell(s->pb);
if(mp3->filesize > ID3v1_TAG_SIZE && pos < mp3->filesize)
if (mp3->filesize > ID3v1_TAG_SIZE && pos < mp3->filesize)
size= FFMIN(size, mp3->filesize - pos);
ret= av_get_packet(s->pb, pkt, size);
ret = av_get_packet(s->pb, pkt, size);
if (ret <= 0) {
if(ret<0)
return ret;
@ -494,7 +494,7 @@ static int64_t mp3_sync(AVFormatContext *s, int64_t target_pos, int flags)
#define MIN_VALID 3
best_pos = target_pos;
best_score = 999;
for(i=0; i<SEEK_WINDOW; i++) {
for (i = 0; i < SEEK_WINDOW; i++) {
int64_t pos = target_pos + (dir > 0 ? i - SEEK_WINDOW/4 : -i);
int64_t candidate = -1;
int score = 999;
@ -502,9 +502,9 @@ static int64_t mp3_sync(AVFormatContext *s, int64_t target_pos, int flags)
if (pos < 0)
continue;
for(j=0; j<MIN_VALID; j++) {
for (j = 0; j < MIN_VALID; j++) {
ret = check(s->pb, pos, NULL);
if(ret < 0) {
if (ret < 0) {
if (ret == CHECK_WRONG_HEADER) {
break;
} else if (ret == CHECK_SEEK_FAILED) {