mirror of
https://github.com/FFmpeg/FFmpeg.git
synced 2024-11-21 10:55:51 +02:00
mpegts: Forward error codes in various functions
Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>
This commit is contained in:
Keiji Costantini
Vittorio Giovara
parent
86ba2327e1
commit
ca80e15814
@ -440,7 +440,7 @@ static int get_packet_size(const uint8_t *buf, int size)
|
||||
int score, fec_score, dvhs_score;
|
||||
|
||||
if (size < (TS_FEC_PACKET_SIZE * 5 + 1))
|
||||
return -1;
|
||||
return AVERROR_INVALIDDATA;
|
||||
|
||||
score = analyze(buf, size, TS_PACKET_SIZE, NULL);
|
||||
dvhs_score = analyze(buf, size, TS_DVHS_PACKET_SIZE, NULL);
|
||||
@ -455,7 +455,7 @@ static int get_packet_size(const uint8_t *buf, int size)
|
||||
else if (score < fec_score && dvhs_score < fec_score)
|
||||
return TS_FEC_PACKET_SIZE;
|
||||
else
|
||||
return -1;
|
||||
return AVERROR_INVALIDDATA;
|
||||
}
|
||||
|
||||
typedef struct SectionHeader {
|
||||
@ -473,7 +473,7 @@ static inline int get8(const uint8_t **pp, const uint8_t *p_end)
|
||||
|
||||
p = *pp;
|
||||
if (p >= p_end)
|
||||
return -1;
|
||||
return AVERROR_INVALIDDATA;
|
||||
c = *p++;
|
||||
*pp = p;
|
||||
return c;
|
||||
@ -486,7 +486,7 @@ static inline int get16(const uint8_t **pp, const uint8_t *p_end)
|
||||
|
||||
p = *pp;
|
||||
if ((p + 1) >= p_end)
|
||||
return -1;
|
||||
return AVERROR_INVALIDDATA;
|
||||
c = AV_RB16(p);
|
||||
p += 2;
|
||||
*pp = p;
|
||||
@ -523,24 +523,24 @@ static int parse_section_header(SectionHeader *h,
|
||||
|
||||
val = get8(pp, p_end);
|
||||
if (val < 0)
|
||||
return -1;
|
||||
return val;
|
||||
h->tid = val;
|
||||
*pp += 2;
|
||||
val = get16(pp, p_end);
|
||||
if (val < 0)
|
||||
return -1;
|
||||
return val;
|
||||
h->id = val;
|
||||
val = get8(pp, p_end);
|
||||
if (val < 0)
|
||||
return -1;
|
||||
return val;
|
||||
h->version = (val >> 1) & 0x1f;
|
||||
val = get8(pp, p_end);
|
||||
if (val < 0)
|
||||
return -1;
|
||||
return val;
|
||||
h->sec_num = val;
|
||||
val = get8(pp, p_end);
|
||||
if (val < 0)
|
||||
return -1;
|
||||
return val;
|
||||
h->last_sec_num = val;
|
||||
return 0;
|
||||
}
|
||||
@ -873,7 +873,7 @@ skip:
|
||||
case MPEGTS_PESHEADER:
|
||||
len = PES_HEADER_SIZE - pes->data_index;
|
||||
if (len < 0)
|
||||
return -1;
|
||||
return AVERROR_INVALIDDATA;
|
||||
if (len > buf_size)
|
||||
len = buf_size;
|
||||
memcpy(pes->header + pes->data_index, p, len);
|
||||
@ -888,7 +888,7 @@ skip:
|
||||
case MPEGTS_PESHEADER_FILL:
|
||||
len = pes->pes_header_size - pes->data_index;
|
||||
if (len < 0)
|
||||
return -1;
|
||||
return AVERROR_INVALIDDATA;
|
||||
if (len > buf_size)
|
||||
len = buf_size;
|
||||
memcpy(pes->header + pes->data_index, p, len);
|
||||
@ -1050,8 +1050,9 @@ static int parse_mp4_descr(MP4DescrParseContext *d, int64_t off, int len,
|
||||
static int parse_mp4_descr_arr(MP4DescrParseContext *d, int64_t off, int len)
|
||||
{
|
||||
while (len > 0) {
|
||||
if (parse_mp4_descr(d, off, len, 0) < 0)
|
||||
return -1;
|
||||
int ret = parse_mp4_descr(d, off, len, 0);
|
||||
if (ret < 0)
|
||||
return ret;
|
||||
update_offsets(&d->pb, &off, &len);
|
||||
}
|
||||
return 0;
|
||||
@ -1087,7 +1088,7 @@ static int parse_MP4ESDescrTag(MP4DescrParseContext *d, int64_t off, int len)
|
||||
{
|
||||
int es_id = 0;
|
||||
if (d->descr_count >= d->max_descr_count)
|
||||
return -1;
|
||||
return AVERROR_INVALIDDATA;
|
||||
ff_mp4_parse_es_descr(&d->pb, &es_id);
|
||||
d->active_descr = d->descr + (d->descr_count++);
|
||||
|
||||
@ -1106,7 +1107,7 @@ static int parse_MP4DecConfigDescrTag(MP4DescrParseContext *d, int64_t off,
|
||||
{
|
||||
Mp4Descr *descr = d->active_descr;
|
||||
if (!descr)
|
||||
return -1;
|
||||
return AVERROR_INVALIDDATA;
|
||||
d->active_descr->dec_config_descr = av_malloc(len);
|
||||
if (!descr->dec_config_descr)
|
||||
return AVERROR(ENOMEM);
|
||||
@ -1120,7 +1121,7 @@ static int parse_MP4SLDescrTag(MP4DescrParseContext *d, int64_t off, int len)
|
||||
Mp4Descr *descr = d->active_descr;
|
||||
int predefined;
|
||||
if (!descr)
|
||||
return -1;
|
||||
return AVERROR_INVALIDDATA;
|
||||
|
||||
predefined = avio_r8(&d->pb);
|
||||
if (!predefined) {
|
||||
@ -1158,7 +1159,7 @@ static int parse_mp4_descr(MP4DescrParseContext *d, int64_t off, int len,
|
||||
av_log(d->s, AV_LOG_ERROR,
|
||||
"Tag %x length violation new length %d bytes remaining %d\n",
|
||||
tag, len1, len);
|
||||
return -1;
|
||||
return AVERROR_INVALIDDATA;
|
||||
}
|
||||
|
||||
if (d->level++ >= MAX_LEVEL) {
|
||||
@ -1190,6 +1191,7 @@ static int parse_mp4_descr(MP4DescrParseContext *d, int64_t off, int len,
|
||||
break;
|
||||
}
|
||||
|
||||
|
||||
done:
|
||||
d->level--;
|
||||
avio_seek(&d->pb, off + len1, SEEK_SET);
|
||||
@ -1200,26 +1202,32 @@ static int mp4_read_iods(AVFormatContext *s, const uint8_t *buf, unsigned size,
|
||||
Mp4Descr *descr, int *descr_count, int max_descr_count)
|
||||
{
|
||||
MP4DescrParseContext d;
|
||||
if (init_MP4DescrParseContext(&d, s, buf, size, descr, max_descr_count) < 0)
|
||||
return -1;
|
||||
int ret;
|
||||
|
||||
parse_mp4_descr(&d, avio_tell(&d.pb), size, MP4IODescrTag);
|
||||
ret = init_MP4DescrParseContext(&d, s, buf, size, descr, max_descr_count);
|
||||
if (ret < 0)
|
||||
return ret;
|
||||
|
||||
ret = parse_mp4_descr(&d, avio_tell(&d.pb), size, MP4IODescrTag);
|
||||
|
||||
*descr_count = d.descr_count;
|
||||
return 0;
|
||||
return ret;
|
||||
}
|
||||
|
||||
static int mp4_read_od(AVFormatContext *s, const uint8_t *buf, unsigned size,
|
||||
Mp4Descr *descr, int *descr_count, int max_descr_count)
|
||||
{
|
||||
MP4DescrParseContext d;
|
||||
if (init_MP4DescrParseContext(&d, s, buf, size, descr, max_descr_count) < 0)
|
||||
return -1;
|
||||
int ret;
|
||||
|
||||
parse_mp4_descr_arr(&d, avio_tell(&d.pb), size);
|
||||
ret = init_MP4DescrParseContext(&d, s, buf, size, descr, max_descr_count);
|
||||
if (ret < 0)
|
||||
return ret;
|
||||
|
||||
ret = parse_mp4_descr_arr(&d, avio_tell(&d.pb), size);
|
||||
|
||||
*descr_count = d.descr_count;
|
||||
return 0;
|
||||
return ret;
|
||||
}
|
||||
|
||||
static void m4sl_cb(MpegTSFilter *filter, const uint8_t *section,
|
||||
@ -1300,13 +1308,13 @@ int ff_parse_mpeg2_descriptor(AVFormatContext *fc, AVStream *st, int stream_type
|
||||
|
||||
desc_tag = get8(pp, desc_list_end);
|
||||
if (desc_tag < 0)
|
||||
return -1;
|
||||
return AVERROR_INVALIDDATA;
|
||||
desc_len = get8(pp, desc_list_end);
|
||||
if (desc_len < 0)
|
||||
return -1;
|
||||
return AVERROR_INVALIDDATA;
|
||||
desc_end = *pp + desc_len;
|
||||
if (desc_end > desc_list_end)
|
||||
return -1;
|
||||
return AVERROR_INVALIDDATA;
|
||||
|
||||
av_dlog(fc, "tag: 0x%02x len=%d\n", desc_tag, desc_len);
|
||||
|
||||
@ -1804,7 +1812,7 @@ static int mpegts_resync(AVFormatContext *s)
|
||||
for (i = 0; i < MAX_RESYNC_SIZE; i++) {
|
||||
c = avio_r8(pb);
|
||||
if (pb->eof_reached)
|
||||
return -1;
|
||||
return AVERROR_EOF;
|
||||
if (c == 0x47) {
|
||||
avio_seek(pb, -1, SEEK_CUR);
|
||||
return 0;
|
||||
@ -1813,10 +1821,10 @@ static int mpegts_resync(AVFormatContext *s)
|
||||
av_log(s, AV_LOG_ERROR,
|
||||
"max resync size reached, could not find sync byte\n");
|
||||
/* no sync found */
|
||||
return -1;
|
||||
return AVERROR_INVALIDDATA;
|
||||
}
|
||||
|
||||
/* return -1 if error or EOF. Return 0 if OK. */
|
||||
/* return AVERROR_something if error or EOF. Return 0 if OK. */
|
||||
static int read_packet(AVFormatContext *s, uint8_t *buf, int raw_packet_size,
|
||||
const uint8_t **data)
|
||||
{
|
||||
@ -1903,7 +1911,7 @@ static int mpegts_probe(AVProbeData *p)
|
||||
#define CHECK_COUNT 10
|
||||
|
||||
if (check_count < CHECK_COUNT)
|
||||
return -1;
|
||||
return AVERROR_INVALIDDATA;
|
||||
|
||||
score = analyze(p->buf, TS_PACKET_SIZE * check_count,
|
||||
TS_PACKET_SIZE, NULL) * CHECK_COUNT / check_count;
|
||||
@ -1923,7 +1931,7 @@ static int mpegts_probe(AVProbeData *p)
|
||||
else if (fec_score > 6)
|
||||
return AVPROBE_SCORE_MAX + fec_score - CHECK_COUNT;
|
||||
else
|
||||
return -1;
|
||||
return AVERROR_INVALIDDATA;
|
||||
}
|
||||
|
||||
/* return the 90kHz PCR and the extension for the 27MHz PCR. return
|
||||
@ -1936,18 +1944,18 @@ static int parse_pcr(int64_t *ppcr_high, int *ppcr_low, const uint8_t *packet)
|
||||
|
||||
afc = (packet[3] >> 4) & 3;
|
||||
if (afc <= 1)
|
||||
return -1;
|
||||
return AVERROR_INVALIDDATA;
|
||||
p = packet + 4;
|
||||
len = p[0];
|
||||
p++;
|
||||
if (len == 0)
|
||||
return -1;
|
||||
return AVERROR_INVALIDDATA;
|
||||
flags = *p++;
|
||||
len--;
|
||||
if (!(flags & 0x10))
|
||||
return -1;
|
||||
return AVERROR_INVALIDDATA;
|
||||
if (len < 6)
|
||||
return -1;
|
||||
return AVERROR_INVALIDDATA;
|
||||
v = AV_RB32(p);
|
||||
*ppcr_high = ((int64_t) v << 1) | (p[4] >> 7);
|
||||
*ppcr_low = ((p[4] & 1) << 8) | p[5];
|
||||
@ -1965,11 +1973,13 @@ static int mpegts_read_header(AVFormatContext *s)
|
||||
/* read the first 1024 bytes to get packet size */
|
||||
pos = avio_tell(pb);
|
||||
len = avio_read(pb, buf, sizeof(buf));
|
||||
if (len < 0)
|
||||
return len;
|
||||
if (len != sizeof(buf))
|
||||
goto fail;
|
||||
return AVERROR_BUG;
|
||||
ts->raw_packet_size = get_packet_size(buf, sizeof(buf));
|
||||
if (ts->raw_packet_size <= 0)
|
||||
goto fail;
|
||||
return AVERROR_INVALIDDATA;
|
||||
ts->stream = s;
|
||||
ts->auto_guess = 0;
|
||||
|
||||
@ -2004,7 +2014,7 @@ static int mpegts_read_header(AVFormatContext *s)
|
||||
|
||||
st = avformat_new_stream(s, NULL);
|
||||
if (!st)
|
||||
goto fail;
|
||||
return AVERROR(ENOMEM);
|
||||
avpriv_set_pts_info(st, 60, 1, 27000000);
|
||||
st->codec->codec_type = AVMEDIA_TYPE_DATA;
|
||||
st->codec->codec_id = AV_CODEC_ID_MPEG2TS;
|
||||
@ -2016,7 +2026,7 @@ static int mpegts_read_header(AVFormatContext *s)
|
||||
for (;;) {
|
||||
ret = read_packet(s, packet, ts->raw_packet_size, &data);
|
||||
if (ret < 0)
|
||||
return -1;
|
||||
return ret;
|
||||
pid = AV_RB16(data + 1) & 0x1fff;
|
||||
if ((pcr_pid == -1 || pcr_pid == pid) &&
|
||||
parse_pcr(&pcr_h, &pcr_l, data) == 0) {
|
||||
@ -2046,8 +2056,6 @@ static int mpegts_read_header(AVFormatContext *s)
|
||||
|
||||
avio_seek(pb, pos, SEEK_SET);
|
||||
return 0;
|
||||
fail:
|
||||
return -1;
|
||||
}
|
||||
|
||||
#define MAX_PACKET_READAHEAD ((128 * 1024) / 188)
|
||||
@ -2192,16 +2200,21 @@ static int read_seek(AVFormatContext *s, int stream_index, int64_t target_ts, in
|
||||
MpegTSContext *ts = s->priv_data;
|
||||
uint8_t buf[TS_PACKET_SIZE];
|
||||
int64_t pos;
|
||||
int ret;
|
||||
|
||||
if (ff_seek_frame_binary(s, stream_index, target_ts, flags) < 0)
|
||||
return -1;
|
||||
ret = ff_seek_frame_binary(s, stream_index, target_ts, flags);
|
||||
if (ret < 0)
|
||||
return ret;
|
||||
|
||||
pos = avio_tell(s->pb);
|
||||
|
||||
for (;;) {
|
||||
avio_seek(s->pb, pos, SEEK_SET);
|
||||
if (avio_read(s->pb, buf, TS_PACKET_SIZE) != TS_PACKET_SIZE)
|
||||
return -1;
|
||||
ret = avio_read(s->pb, buf, TS_PACKET_SIZE);
|
||||
if (ret < 0)
|
||||
return ret;
|
||||
if (ret != TS_PACKET_SIZE)
|
||||
return AVERROR_EOF;
|
||||
// pid = AV_RB16(buf + 1) & 0x1fff;
|
||||
if (buf[1] & 0x40)
|
||||
break;
|
||||
@ -2243,7 +2256,7 @@ int ff_mpegts_parse_packet(MpegTSContext *ts, AVPacket *pkt,
|
||||
if (ts->stop_parse > 0)
|
||||
break;
|
||||
if (len < TS_PACKET_SIZE)
|
||||
return -1;
|
||||
return AVERROR_INVALIDDATA;
|
||||
if (buf[0] != 0x47) {
|
||||
buf++;
|
||||
len--;
|
||||
|
||||
Loading…
Reference in New Issue
Block a user