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avio: avio_ prefixes for get_* functions

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In the name of consistency:
get_byte           -> avio_r8
get_<type>         -> avio_r<type>
get_buffer         -> avio_read

get_partial_buffer will be made private later

get_strz is left out becase I want to change it later to return
something useful.

Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
(cherry picked from commit b7effd4e83)
This commit is contained in:
Anton Khirnov
2011-02-21 16:43:01 +01:00
committed by Michael Niedermayer
parent 6a786b15c3
commit e63a362857
107 changed files with 1821 additions and 1776 deletions
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78
libavformat/mpeg.c
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@@ -113,7 +113,7 @@ static int mpegps_read_header(AVFormatContext *s,
m->sofdec = -1;
do {
v = get_byte(s->pb);
v = avio_r8(s->pb);
m->header_state = m->header_state << 8 | v;
m->sofdec++;
} while (v == sofdec[i] && i++ < 6);
@@ -128,8 +128,8 @@ static int64_t get_pts(AVIOContext *pb, int c)
{
uint8_t buf[5];
buf[0] = c<0 ? get_byte(pb) : c;
get_buffer(pb, buf+1, 4);
buf[0] = c<0 ? avio_r8(pb) : c;
avio_read(pb, buf+1, 4);
return ff_parse_pes_pts(buf);
}
@@ -145,7 +145,7 @@ static int find_next_start_code(AVIOContext *pb, int *size_ptr,
while (n > 0) {
if (url_feof(pb))
break;
v = get_byte(pb);
v = avio_r8(pb);
n--;
if (state == 0x000001) {
state = ((state << 8) | v) & 0xffffff;
@@ -176,7 +176,7 @@ static int find_prev_start_code(AVIOContext *pb, int *size_ptr)
if (pos < 0)
pos = 0;
url_fseek(pb, pos, SEEK_SET);
get_byte(pb);
avio_r8(pb);
pos = pos_start;
for(;;) {
@@ -186,7 +186,7 @@ static int find_prev_start_code(AVIOContext *pb, int *size_ptr)
goto the_end;
}
url_fseek(pb, pos, SEEK_SET);
start_code = get_be32(pb);
start_code = avio_rb32(pb);
if ((start_code & 0xffffff00) == 0x100)
break;
}
@@ -206,27 +206,27 @@ static long mpegps_psm_parse(MpegDemuxContext *m, AVIOContext *pb)
{
int psm_length, ps_info_length, es_map_length;
psm_length = get_be16(pb);
get_byte(pb);
get_byte(pb);
ps_info_length = get_be16(pb);
psm_length = avio_rb16(pb);
avio_r8(pb);
avio_r8(pb);
ps_info_length = avio_rb16(pb);
/* skip program_stream_info */
url_fskip(pb, ps_info_length);
es_map_length = get_be16(pb);
es_map_length = avio_rb16(pb);
/* at least one es available? */
while (es_map_length >= 4){
unsigned char type = get_byte(pb);
unsigned char es_id = get_byte(pb);
uint16_t es_info_length = get_be16(pb);
unsigned char type = avio_r8(pb);
unsigned char es_id = avio_r8(pb);
uint16_t es_info_length = avio_rb16(pb);
/* remember mapping from stream id to stream type */
m->psm_es_type[es_id] = type;
/* skip program_stream_info */
url_fskip(pb, es_info_length);
es_map_length -= 4 + es_info_length;
}
get_be32(pb); /* crc32 */
avio_rb32(pb); /* crc32 */
return 2 + psm_length;
}
@@ -264,16 +264,16 @@ static int mpegps_read_pes_header(AVFormatContext *s,
if (startcode == SYSTEM_HEADER_START_CODE)
goto redo;
if (startcode == PADDING_STREAM) {
url_fskip(s->pb, get_be16(s->pb));
url_fskip(s->pb, avio_rb16(s->pb));
goto redo;
}
if (startcode == PRIVATE_STREAM_2) {
len = get_be16(s->pb);
len = avio_rb16(s->pb);
if (!m->sofdec) {
while (len-- >= 6) {
if (get_byte(s->pb) == 'S') {
if (avio_r8(s->pb) == 'S') {
uint8_t buf[5];
get_buffer(s->pb, buf, sizeof(buf));
avio_read(s->pb, buf, sizeof(buf));
m->sofdec = !memcmp(buf, "ofdec", 5);
len -= sizeof(buf);
break;
@@ -297,14 +297,14 @@ static int mpegps_read_pes_header(AVFormatContext *s,
if (ppos) {
*ppos = url_ftell(s->pb) - 4;
}
len = get_be16(s->pb);
len = avio_rb16(s->pb);
pts =
dts = AV_NOPTS_VALUE;
/* stuffing */
for(;;) {
if (len < 1)
goto error_redo;
c = get_byte(s->pb);
c = avio_r8(s->pb);
len--;
/* XXX: for mpeg1, should test only bit 7 */
if (c != 0xff)
@@ -312,8 +312,8 @@ static int mpegps_read_pes_header(AVFormatContext *s,
}
if ((c & 0xc0) == 0x40) {
/* buffer scale & size */
get_byte(s->pb);
c = get_byte(s->pb);
avio_r8(s->pb);
c = avio_r8(s->pb);
len -= 2;
}
if ((c & 0xe0) == 0x20) {
@@ -331,8 +331,8 @@ static int mpegps_read_pes_header(AVFormatContext *s,
goto redo;
}
#endif
flags = get_byte(s->pb);
header_len = get_byte(s->pb);
flags = avio_r8(s->pb);
header_len = avio_r8(s->pb);
len -= 2;
if (header_len > len)
goto error_redo;
@@ -350,7 +350,7 @@ static int mpegps_read_pes_header(AVFormatContext *s,
av_log(s, AV_LOG_WARNING, "Further flags set but no bytes left\n");
}
if (flags & 0x01) { /* PES extension */
pes_ext = get_byte(s->pb);
pes_ext = avio_r8(s->pb);
header_len--;
/* Skip PES private data, program packet sequence counter and P-STD buffer */
skip = (pes_ext >> 4) & 0xb;
@@ -363,10 +363,10 @@ static int mpegps_read_pes_header(AVFormatContext *s,
header_len -= skip;
if (pes_ext & 0x01) { /* PES extension 2 */
ext2_len = get_byte(s->pb);
ext2_len = avio_r8(s->pb);
header_len--;
if ((ext2_len & 0x7f) > 0) {
id_ext = get_byte(s->pb);
id_ext = avio_r8(s->pb);
if ((id_ext & 0x80) == 0)
startcode = ((startcode & 0xff) << 8) | id_ext;
header_len--;
@@ -381,17 +381,17 @@ static int mpegps_read_pes_header(AVFormatContext *s,
goto redo;
if (startcode == PRIVATE_STREAM_1 && !m->psm_es_type[startcode & 0xff]) {
startcode = get_byte(s->pb);
startcode = avio_r8(s->pb);
len--;
if (startcode >= 0x80 && startcode <= 0xcf) {
/* audio: skip header */
get_byte(s->pb);
get_byte(s->pb);
get_byte(s->pb);
avio_r8(s->pb);
avio_r8(s->pb);
avio_r8(s->pb);
len -= 3;
if (startcode >= 0xb0 && startcode <= 0xbf) {
/* MLP/TrueHD audio has a 4-byte header */
get_byte(s->pb);
avio_r8(s->pb);
len--;
}
}
@@ -432,7 +432,7 @@ static int mpegps_read_packet(AVFormatContext *s,
return len;
if(startcode == 0x1bd) {
dvdaudio_substream_type = get_byte(s->pb);
dvdaudio_substream_type = avio_r8(s->pb);
url_fskip(s->pb, 3);
len -= 4;
}
@@ -474,7 +474,7 @@ static int mpegps_read_packet(AVFormatContext *s,
} else if (startcode >= 0x1e0 && startcode <= 0x1ef) {
static const unsigned char avs_seqh[4] = { 0, 0, 1, 0xb0 };
unsigned char buf[8];
get_buffer(s->pb, buf, 8);
avio_read(s->pb, buf, 8);
url_fseek(s->pb, -8, SEEK_CUR);
if(!memcmp(buf, avs_seqh, 4) && (buf[6] != 0 || buf[7] != 1))
codec_id = CODEC_ID_CAVS;
@@ -547,9 +547,9 @@ static int mpegps_read_packet(AVFormatContext *s,
audio data */
if (len <= 3)
goto skip;
get_byte(s->pb); /* emphasis (1), muse(1), reserved(1), frame number(5) */
b1 = get_byte(s->pb); /* quant (2), freq(2), reserved(1), channels(3) */
get_byte(s->pb); /* dynamic range control (0x80 = off) */
avio_r8(s->pb); /* emphasis (1), muse(1), reserved(1), frame number(5) */
b1 = avio_r8(s->pb); /* quant (2), freq(2), reserved(1), channels(3) */
avio_r8(s->pb); /* dynamic range control (0x80 = off) */
len -= 3;
freq = (b1 >> 4) & 3;
st->codec->sample_rate = lpcm_freq_tab[freq];
@@ -564,7 +564,7 @@ static int mpegps_read_packet(AVFormatContext *s,
return AVERROR(EINVAL);
}
av_new_packet(pkt, len);
get_buffer(s->pb, pkt->data, pkt->size);
avio_read(s->pb, pkt->data, pkt->size);
pkt->pts = pts;
pkt->dts = dts;
pkt->pos = dummy_pos;