mirror of
https://github.com/pineappleEA/pineapple-src.git
synced 2024-12-05 01:08:24 -05:00
721 lines
22 KiB
C
Executable File
721 lines
22 KiB
C
Executable File
/*
|
|
* RTMP input format
|
|
* Copyright (c) 2009 Konstantin Shishkov
|
|
*
|
|
* This file is part of FFmpeg.
|
|
*
|
|
* FFmpeg is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Lesser General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2.1 of the License, or (at your option) any later version.
|
|
*
|
|
* FFmpeg is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
* License along with FFmpeg; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
|
*/
|
|
|
|
#include "libavcodec/bytestream.h"
|
|
#include "libavutil/avstring.h"
|
|
#include "libavutil/intfloat.h"
|
|
#include "avformat.h"
|
|
|
|
#include "rtmppkt.h"
|
|
#include "flv.h"
|
|
#include "url.h"
|
|
|
|
void ff_amf_write_bool(uint8_t **dst, int val)
|
|
{
|
|
bytestream_put_byte(dst, AMF_DATA_TYPE_BOOL);
|
|
bytestream_put_byte(dst, val);
|
|
}
|
|
|
|
void ff_amf_write_number(uint8_t **dst, double val)
|
|
{
|
|
bytestream_put_byte(dst, AMF_DATA_TYPE_NUMBER);
|
|
bytestream_put_be64(dst, av_double2int(val));
|
|
}
|
|
|
|
void ff_amf_write_string(uint8_t **dst, const char *str)
|
|
{
|
|
bytestream_put_byte(dst, AMF_DATA_TYPE_STRING);
|
|
bytestream_put_be16(dst, strlen(str));
|
|
bytestream_put_buffer(dst, str, strlen(str));
|
|
}
|
|
|
|
void ff_amf_write_string2(uint8_t **dst, const char *str1, const char *str2)
|
|
{
|
|
int len1 = 0, len2 = 0;
|
|
if (str1)
|
|
len1 = strlen(str1);
|
|
if (str2)
|
|
len2 = strlen(str2);
|
|
bytestream_put_byte(dst, AMF_DATA_TYPE_STRING);
|
|
bytestream_put_be16(dst, len1 + len2);
|
|
bytestream_put_buffer(dst, str1, len1);
|
|
bytestream_put_buffer(dst, str2, len2);
|
|
}
|
|
|
|
void ff_amf_write_null(uint8_t **dst)
|
|
{
|
|
bytestream_put_byte(dst, AMF_DATA_TYPE_NULL);
|
|
}
|
|
|
|
void ff_amf_write_object_start(uint8_t **dst)
|
|
{
|
|
bytestream_put_byte(dst, AMF_DATA_TYPE_OBJECT);
|
|
}
|
|
|
|
void ff_amf_write_field_name(uint8_t **dst, const char *str)
|
|
{
|
|
bytestream_put_be16(dst, strlen(str));
|
|
bytestream_put_buffer(dst, str, strlen(str));
|
|
}
|
|
|
|
void ff_amf_write_object_end(uint8_t **dst)
|
|
{
|
|
/* first two bytes are field name length = 0,
|
|
* AMF object should end with it and end marker
|
|
*/
|
|
bytestream_put_be24(dst, AMF_DATA_TYPE_OBJECT_END);
|
|
}
|
|
|
|
int ff_amf_read_bool(GetByteContext *bc, int *val)
|
|
{
|
|
if (bytestream2_get_byte(bc) != AMF_DATA_TYPE_BOOL)
|
|
return AVERROR_INVALIDDATA;
|
|
*val = bytestream2_get_byte(bc);
|
|
return 0;
|
|
}
|
|
|
|
int ff_amf_read_number(GetByteContext *bc, double *val)
|
|
{
|
|
uint64_t read;
|
|
if (bytestream2_get_byte(bc) != AMF_DATA_TYPE_NUMBER)
|
|
return AVERROR_INVALIDDATA;
|
|
read = bytestream2_get_be64(bc);
|
|
*val = av_int2double(read);
|
|
return 0;
|
|
}
|
|
|
|
int ff_amf_get_string(GetByteContext *bc, uint8_t *str,
|
|
int strsize, int *length)
|
|
{
|
|
int stringlen = 0;
|
|
int readsize;
|
|
stringlen = bytestream2_get_be16(bc);
|
|
if (stringlen + 1 > strsize)
|
|
return AVERROR(EINVAL);
|
|
readsize = bytestream2_get_buffer(bc, str, stringlen);
|
|
if (readsize != stringlen) {
|
|
av_log(NULL, AV_LOG_WARNING,
|
|
"Unable to read as many bytes as AMF string signaled\n");
|
|
}
|
|
str[readsize] = '\0';
|
|
*length = FFMIN(stringlen, readsize);
|
|
return 0;
|
|
}
|
|
|
|
int ff_amf_read_string(GetByteContext *bc, uint8_t *str,
|
|
int strsize, int *length)
|
|
{
|
|
if (bytestream2_get_byte(bc) != AMF_DATA_TYPE_STRING)
|
|
return AVERROR_INVALIDDATA;
|
|
return ff_amf_get_string(bc, str, strsize, length);
|
|
}
|
|
|
|
int ff_amf_read_null(GetByteContext *bc)
|
|
{
|
|
if (bytestream2_get_byte(bc) != AMF_DATA_TYPE_NULL)
|
|
return AVERROR_INVALIDDATA;
|
|
return 0;
|
|
}
|
|
|
|
int ff_rtmp_check_alloc_array(RTMPPacket **prev_pkt, int *nb_prev_pkt,
|
|
int channel)
|
|
{
|
|
int nb_alloc;
|
|
RTMPPacket *ptr;
|
|
if (channel < *nb_prev_pkt)
|
|
return 0;
|
|
|
|
nb_alloc = channel + 16;
|
|
// This can't use the av_reallocp family of functions, since we
|
|
// would need to free each element in the array before the array
|
|
// itself is freed.
|
|
ptr = av_realloc_array(*prev_pkt, nb_alloc, sizeof(**prev_pkt));
|
|
if (!ptr)
|
|
return AVERROR(ENOMEM);
|
|
memset(ptr + *nb_prev_pkt, 0, (nb_alloc - *nb_prev_pkt) * sizeof(*ptr));
|
|
*prev_pkt = ptr;
|
|
*nb_prev_pkt = nb_alloc;
|
|
return 0;
|
|
}
|
|
|
|
int ff_rtmp_packet_read(URLContext *h, RTMPPacket *p,
|
|
int chunk_size, RTMPPacket **prev_pkt, int *nb_prev_pkt)
|
|
{
|
|
uint8_t hdr;
|
|
|
|
if (ffurl_read(h, &hdr, 1) != 1)
|
|
return AVERROR(EIO);
|
|
|
|
return ff_rtmp_packet_read_internal(h, p, chunk_size, prev_pkt,
|
|
nb_prev_pkt, hdr);
|
|
}
|
|
|
|
static int rtmp_packet_read_one_chunk(URLContext *h, RTMPPacket *p,
|
|
int chunk_size, RTMPPacket **prev_pkt_ptr,
|
|
int *nb_prev_pkt, uint8_t hdr)
|
|
{
|
|
|
|
uint8_t buf[16];
|
|
int channel_id, timestamp, size;
|
|
uint32_t ts_field; // non-extended timestamp or delta field
|
|
uint32_t extra = 0;
|
|
enum RTMPPacketType type;
|
|
int written = 0;
|
|
int ret, toread;
|
|
RTMPPacket *prev_pkt;
|
|
|
|
written++;
|
|
channel_id = hdr & 0x3F;
|
|
|
|
if (channel_id < 2) { //special case for channel number >= 64
|
|
buf[1] = 0;
|
|
if (ffurl_read_complete(h, buf, channel_id + 1) != channel_id + 1)
|
|
return AVERROR(EIO);
|
|
written += channel_id + 1;
|
|
channel_id = AV_RL16(buf) + 64;
|
|
}
|
|
if ((ret = ff_rtmp_check_alloc_array(prev_pkt_ptr, nb_prev_pkt,
|
|
channel_id)) < 0)
|
|
return ret;
|
|
prev_pkt = *prev_pkt_ptr;
|
|
size = prev_pkt[channel_id].size;
|
|
type = prev_pkt[channel_id].type;
|
|
extra = prev_pkt[channel_id].extra;
|
|
|
|
hdr >>= 6; // header size indicator
|
|
if (hdr == RTMP_PS_ONEBYTE) {
|
|
ts_field = prev_pkt[channel_id].ts_field;
|
|
} else {
|
|
if (ffurl_read_complete(h, buf, 3) != 3)
|
|
return AVERROR(EIO);
|
|
written += 3;
|
|
ts_field = AV_RB24(buf);
|
|
if (hdr != RTMP_PS_FOURBYTES) {
|
|
if (ffurl_read_complete(h, buf, 3) != 3)
|
|
return AVERROR(EIO);
|
|
written += 3;
|
|
size = AV_RB24(buf);
|
|
if (ffurl_read_complete(h, buf, 1) != 1)
|
|
return AVERROR(EIO);
|
|
written++;
|
|
type = buf[0];
|
|
if (hdr == RTMP_PS_TWELVEBYTES) {
|
|
if (ffurl_read_complete(h, buf, 4) != 4)
|
|
return AVERROR(EIO);
|
|
written += 4;
|
|
extra = AV_RL32(buf);
|
|
}
|
|
}
|
|
}
|
|
if (ts_field == 0xFFFFFF) {
|
|
if (ffurl_read_complete(h, buf, 4) != 4)
|
|
return AVERROR(EIO);
|
|
timestamp = AV_RB32(buf);
|
|
} else {
|
|
timestamp = ts_field;
|
|
}
|
|
if (hdr != RTMP_PS_TWELVEBYTES)
|
|
timestamp += prev_pkt[channel_id].timestamp;
|
|
|
|
if (prev_pkt[channel_id].read && size != prev_pkt[channel_id].size) {
|
|
av_log(h, AV_LOG_ERROR, "RTMP packet size mismatch %d != %d\n",
|
|
size, prev_pkt[channel_id].size);
|
|
ff_rtmp_packet_destroy(&prev_pkt[channel_id]);
|
|
prev_pkt[channel_id].read = 0;
|
|
return AVERROR_INVALIDDATA;
|
|
}
|
|
|
|
if (!prev_pkt[channel_id].read) {
|
|
if ((ret = ff_rtmp_packet_create(p, channel_id, type, timestamp,
|
|
size)) < 0)
|
|
return ret;
|
|
p->read = written;
|
|
p->offset = 0;
|
|
prev_pkt[channel_id].ts_field = ts_field;
|
|
prev_pkt[channel_id].timestamp = timestamp;
|
|
} else {
|
|
// previous packet in this channel hasn't completed reading
|
|
RTMPPacket *prev = &prev_pkt[channel_id];
|
|
p->data = prev->data;
|
|
p->size = prev->size;
|
|
p->channel_id = prev->channel_id;
|
|
p->type = prev->type;
|
|
p->ts_field = prev->ts_field;
|
|
p->extra = prev->extra;
|
|
p->offset = prev->offset;
|
|
p->read = prev->read + written;
|
|
p->timestamp = prev->timestamp;
|
|
prev->data = NULL;
|
|
}
|
|
p->extra = extra;
|
|
// save history
|
|
prev_pkt[channel_id].channel_id = channel_id;
|
|
prev_pkt[channel_id].type = type;
|
|
prev_pkt[channel_id].size = size;
|
|
prev_pkt[channel_id].extra = extra;
|
|
size = size - p->offset;
|
|
|
|
toread = FFMIN(size, chunk_size);
|
|
if (ffurl_read_complete(h, p->data + p->offset, toread) != toread) {
|
|
ff_rtmp_packet_destroy(p);
|
|
return AVERROR(EIO);
|
|
}
|
|
size -= toread;
|
|
p->read += toread;
|
|
p->offset += toread;
|
|
|
|
if (size > 0) {
|
|
RTMPPacket *prev = &prev_pkt[channel_id];
|
|
prev->data = p->data;
|
|
prev->read = p->read;
|
|
prev->offset = p->offset;
|
|
p->data = NULL;
|
|
return AVERROR(EAGAIN);
|
|
}
|
|
|
|
prev_pkt[channel_id].read = 0; // read complete; reset if needed
|
|
return p->read;
|
|
}
|
|
|
|
int ff_rtmp_packet_read_internal(URLContext *h, RTMPPacket *p, int chunk_size,
|
|
RTMPPacket **prev_pkt, int *nb_prev_pkt,
|
|
uint8_t hdr)
|
|
{
|
|
while (1) {
|
|
int ret = rtmp_packet_read_one_chunk(h, p, chunk_size, prev_pkt,
|
|
nb_prev_pkt, hdr);
|
|
if (ret > 0 || ret != AVERROR(EAGAIN))
|
|
return ret;
|
|
|
|
if (ffurl_read(h, &hdr, 1) != 1)
|
|
return AVERROR(EIO);
|
|
}
|
|
}
|
|
|
|
int ff_rtmp_packet_write(URLContext *h, RTMPPacket *pkt,
|
|
int chunk_size, RTMPPacket **prev_pkt_ptr,
|
|
int *nb_prev_pkt)
|
|
{
|
|
uint8_t pkt_hdr[16], *p = pkt_hdr;
|
|
int mode = RTMP_PS_TWELVEBYTES;
|
|
int off = 0;
|
|
int written = 0;
|
|
int ret;
|
|
RTMPPacket *prev_pkt;
|
|
int use_delta; // flag if using timestamp delta, not RTMP_PS_TWELVEBYTES
|
|
uint32_t timestamp; // full 32-bit timestamp or delta value
|
|
|
|
if ((ret = ff_rtmp_check_alloc_array(prev_pkt_ptr, nb_prev_pkt,
|
|
pkt->channel_id)) < 0)
|
|
return ret;
|
|
prev_pkt = *prev_pkt_ptr;
|
|
|
|
//if channel_id = 0, this is first presentation of prev_pkt, send full hdr.
|
|
use_delta = prev_pkt[pkt->channel_id].channel_id &&
|
|
pkt->extra == prev_pkt[pkt->channel_id].extra &&
|
|
pkt->timestamp >= prev_pkt[pkt->channel_id].timestamp;
|
|
|
|
timestamp = pkt->timestamp;
|
|
if (use_delta) {
|
|
timestamp -= prev_pkt[pkt->channel_id].timestamp;
|
|
}
|
|
if (timestamp >= 0xFFFFFF) {
|
|
pkt->ts_field = 0xFFFFFF;
|
|
} else {
|
|
pkt->ts_field = timestamp;
|
|
}
|
|
|
|
if (use_delta) {
|
|
if (pkt->type == prev_pkt[pkt->channel_id].type &&
|
|
pkt->size == prev_pkt[pkt->channel_id].size) {
|
|
mode = RTMP_PS_FOURBYTES;
|
|
if (pkt->ts_field == prev_pkt[pkt->channel_id].ts_field)
|
|
mode = RTMP_PS_ONEBYTE;
|
|
} else {
|
|
mode = RTMP_PS_EIGHTBYTES;
|
|
}
|
|
}
|
|
|
|
if (pkt->channel_id < 64) {
|
|
bytestream_put_byte(&p, pkt->channel_id | (mode << 6));
|
|
} else if (pkt->channel_id < 64 + 256) {
|
|
bytestream_put_byte(&p, 0 | (mode << 6));
|
|
bytestream_put_byte(&p, pkt->channel_id - 64);
|
|
} else {
|
|
bytestream_put_byte(&p, 1 | (mode << 6));
|
|
bytestream_put_le16(&p, pkt->channel_id - 64);
|
|
}
|
|
if (mode != RTMP_PS_ONEBYTE) {
|
|
bytestream_put_be24(&p, pkt->ts_field);
|
|
if (mode != RTMP_PS_FOURBYTES) {
|
|
bytestream_put_be24(&p, pkt->size);
|
|
bytestream_put_byte(&p, pkt->type);
|
|
if (mode == RTMP_PS_TWELVEBYTES)
|
|
bytestream_put_le32(&p, pkt->extra);
|
|
}
|
|
}
|
|
if (pkt->ts_field == 0xFFFFFF)
|
|
bytestream_put_be32(&p, timestamp);
|
|
// save history
|
|
prev_pkt[pkt->channel_id].channel_id = pkt->channel_id;
|
|
prev_pkt[pkt->channel_id].type = pkt->type;
|
|
prev_pkt[pkt->channel_id].size = pkt->size;
|
|
prev_pkt[pkt->channel_id].timestamp = pkt->timestamp;
|
|
prev_pkt[pkt->channel_id].ts_field = pkt->ts_field;
|
|
prev_pkt[pkt->channel_id].extra = pkt->extra;
|
|
|
|
if ((ret = ffurl_write(h, pkt_hdr, p - pkt_hdr)) < 0)
|
|
return ret;
|
|
written = p - pkt_hdr + pkt->size;
|
|
while (off < pkt->size) {
|
|
int towrite = FFMIN(chunk_size, pkt->size - off);
|
|
if ((ret = ffurl_write(h, pkt->data + off, towrite)) < 0)
|
|
return ret;
|
|
off += towrite;
|
|
if (off < pkt->size) {
|
|
uint8_t marker = 0xC0 | pkt->channel_id;
|
|
if ((ret = ffurl_write(h, &marker, 1)) < 0)
|
|
return ret;
|
|
written++;
|
|
if (pkt->ts_field == 0xFFFFFF) {
|
|
uint8_t ts_header[4];
|
|
AV_WB32(ts_header, timestamp);
|
|
if ((ret = ffurl_write(h, ts_header, 4)) < 0)
|
|
return ret;
|
|
written += 4;
|
|
}
|
|
}
|
|
}
|
|
return written;
|
|
}
|
|
|
|
int ff_rtmp_packet_create(RTMPPacket *pkt, int channel_id, RTMPPacketType type,
|
|
int timestamp, int size)
|
|
{
|
|
if (size) {
|
|
pkt->data = av_realloc(NULL, size);
|
|
if (!pkt->data)
|
|
return AVERROR(ENOMEM);
|
|
}
|
|
pkt->size = size;
|
|
pkt->channel_id = channel_id;
|
|
pkt->type = type;
|
|
pkt->timestamp = timestamp;
|
|
pkt->extra = 0;
|
|
pkt->ts_field = 0;
|
|
|
|
return 0;
|
|
}
|
|
|
|
void ff_rtmp_packet_destroy(RTMPPacket *pkt)
|
|
{
|
|
if (!pkt)
|
|
return;
|
|
av_freep(&pkt->data);
|
|
pkt->size = 0;
|
|
}
|
|
|
|
static int amf_tag_skip(GetByteContext *gb)
|
|
{
|
|
AMFDataType type;
|
|
unsigned nb = -1;
|
|
int parse_key = 1;
|
|
|
|
if (bytestream2_get_bytes_left(gb) < 1)
|
|
return -1;
|
|
|
|
type = bytestream2_get_byte(gb);
|
|
switch (type) {
|
|
case AMF_DATA_TYPE_NUMBER:
|
|
bytestream2_get_be64(gb);
|
|
return 0;
|
|
case AMF_DATA_TYPE_BOOL:
|
|
bytestream2_get_byte(gb);
|
|
return 0;
|
|
case AMF_DATA_TYPE_STRING:
|
|
bytestream2_skip(gb, bytestream2_get_be16(gb));
|
|
return 0;
|
|
case AMF_DATA_TYPE_LONG_STRING:
|
|
bytestream2_skip(gb, bytestream2_get_be32(gb));
|
|
return 0;
|
|
case AMF_DATA_TYPE_NULL:
|
|
return 0;
|
|
case AMF_DATA_TYPE_DATE:
|
|
bytestream2_skip(gb, 10);
|
|
return 0;
|
|
case AMF_DATA_TYPE_ARRAY:
|
|
parse_key = 0;
|
|
case AMF_DATA_TYPE_MIXEDARRAY:
|
|
nb = bytestream2_get_be32(gb);
|
|
case AMF_DATA_TYPE_OBJECT:
|
|
while (nb-- > 0 || type != AMF_DATA_TYPE_ARRAY) {
|
|
int t;
|
|
if (parse_key) {
|
|
int size = bytestream2_get_be16(gb);
|
|
if (!size) {
|
|
bytestream2_get_byte(gb);
|
|
break;
|
|
}
|
|
if (size < 0 || size >= bytestream2_get_bytes_left(gb))
|
|
return -1;
|
|
bytestream2_skip(gb, size);
|
|
}
|
|
t = amf_tag_skip(gb);
|
|
if (t < 0 || bytestream2_get_bytes_left(gb) <= 0)
|
|
return -1;
|
|
}
|
|
return 0;
|
|
case AMF_DATA_TYPE_OBJECT_END: return 0;
|
|
default: return -1;
|
|
}
|
|
}
|
|
|
|
int ff_amf_tag_size(const uint8_t *data, const uint8_t *data_end)
|
|
{
|
|
GetByteContext gb;
|
|
int ret;
|
|
|
|
if (data >= data_end)
|
|
return -1;
|
|
|
|
bytestream2_init(&gb, data, data_end - data);
|
|
|
|
ret = amf_tag_skip(&gb);
|
|
if (ret < 0 || bytestream2_get_bytes_left(&gb) <= 0)
|
|
return -1;
|
|
av_assert0(bytestream2_tell(&gb) >= 0 && bytestream2_tell(&gb) <= data_end - data);
|
|
return bytestream2_tell(&gb);
|
|
}
|
|
|
|
static int amf_get_field_value2(GetByteContext *gb,
|
|
const uint8_t *name, uint8_t *dst, int dst_size)
|
|
{
|
|
int namelen = strlen(name);
|
|
int len;
|
|
|
|
while (bytestream2_peek_byte(gb) != AMF_DATA_TYPE_OBJECT && bytestream2_get_bytes_left(gb) > 0) {
|
|
int ret = amf_tag_skip(gb);
|
|
if (ret < 0)
|
|
return -1;
|
|
}
|
|
if (bytestream2_get_bytes_left(gb) < 3)
|
|
return -1;
|
|
bytestream2_get_byte(gb);
|
|
|
|
for (;;) {
|
|
int size = bytestream2_get_be16(gb);
|
|
if (!size)
|
|
break;
|
|
if (size < 0 || size >= bytestream2_get_bytes_left(gb))
|
|
return -1;
|
|
bytestream2_skip(gb, size);
|
|
if (size == namelen && !memcmp(gb->buffer-size, name, namelen)) {
|
|
switch (bytestream2_get_byte(gb)) {
|
|
case AMF_DATA_TYPE_NUMBER:
|
|
snprintf(dst, dst_size, "%g", av_int2double(bytestream2_get_be64(gb)));
|
|
break;
|
|
case AMF_DATA_TYPE_BOOL:
|
|
snprintf(dst, dst_size, "%s", bytestream2_get_byte(gb) ? "true" : "false");
|
|
break;
|
|
case AMF_DATA_TYPE_STRING:
|
|
len = bytestream2_get_be16(gb);
|
|
if (dst_size < 1)
|
|
return -1;
|
|
if (dst_size < len + 1)
|
|
len = dst_size - 1;
|
|
bytestream2_get_buffer(gb, dst, len);
|
|
dst[len] = 0;
|
|
break;
|
|
default:
|
|
return -1;
|
|
}
|
|
return 0;
|
|
}
|
|
len = amf_tag_skip(gb);
|
|
if (len < 0 || bytestream2_get_bytes_left(gb) <= 0)
|
|
return -1;
|
|
}
|
|
return -1;
|
|
}
|
|
|
|
int ff_amf_get_field_value(const uint8_t *data, const uint8_t *data_end,
|
|
const uint8_t *name, uint8_t *dst, int dst_size)
|
|
{
|
|
GetByteContext gb;
|
|
|
|
if (data >= data_end)
|
|
return -1;
|
|
|
|
bytestream2_init(&gb, data, data_end - data);
|
|
|
|
return amf_get_field_value2(&gb, name, dst, dst_size);
|
|
}
|
|
|
|
static const char* rtmp_packet_type(int type)
|
|
{
|
|
switch (type) {
|
|
case RTMP_PT_CHUNK_SIZE: return "chunk size";
|
|
case RTMP_PT_BYTES_READ: return "bytes read";
|
|
case RTMP_PT_USER_CONTROL: return "user control";
|
|
case RTMP_PT_WINDOW_ACK_SIZE: return "window acknowledgement size";
|
|
case RTMP_PT_SET_PEER_BW: return "set peer bandwidth";
|
|
case RTMP_PT_AUDIO: return "audio packet";
|
|
case RTMP_PT_VIDEO: return "video packet";
|
|
case RTMP_PT_FLEX_STREAM: return "Flex shared stream";
|
|
case RTMP_PT_FLEX_OBJECT: return "Flex shared object";
|
|
case RTMP_PT_FLEX_MESSAGE: return "Flex shared message";
|
|
case RTMP_PT_NOTIFY: return "notification";
|
|
case RTMP_PT_SHARED_OBJ: return "shared object";
|
|
case RTMP_PT_INVOKE: return "invoke";
|
|
case RTMP_PT_METADATA: return "metadata";
|
|
default: return "unknown";
|
|
}
|
|
}
|
|
|
|
static void amf_tag_contents(void *ctx, const uint8_t *data,
|
|
const uint8_t *data_end)
|
|
{
|
|
unsigned int size, nb = -1;
|
|
char buf[1024];
|
|
AMFDataType type;
|
|
int parse_key = 1;
|
|
|
|
if (data >= data_end)
|
|
return;
|
|
switch ((type = *data++)) {
|
|
case AMF_DATA_TYPE_NUMBER:
|
|
av_log(ctx, AV_LOG_DEBUG, " number %g\n", av_int2double(AV_RB64(data)));
|
|
return;
|
|
case AMF_DATA_TYPE_BOOL:
|
|
av_log(ctx, AV_LOG_DEBUG, " bool %d\n", *data);
|
|
return;
|
|
case AMF_DATA_TYPE_STRING:
|
|
case AMF_DATA_TYPE_LONG_STRING:
|
|
if (type == AMF_DATA_TYPE_STRING) {
|
|
size = bytestream_get_be16(&data);
|
|
} else {
|
|
size = bytestream_get_be32(&data);
|
|
}
|
|
size = FFMIN(size, sizeof(buf) - 1);
|
|
memcpy(buf, data, size);
|
|
buf[size] = 0;
|
|
av_log(ctx, AV_LOG_DEBUG, " string '%s'\n", buf);
|
|
return;
|
|
case AMF_DATA_TYPE_NULL:
|
|
av_log(ctx, AV_LOG_DEBUG, " NULL\n");
|
|
return;
|
|
case AMF_DATA_TYPE_ARRAY:
|
|
parse_key = 0;
|
|
case AMF_DATA_TYPE_MIXEDARRAY:
|
|
nb = bytestream_get_be32(&data);
|
|
case AMF_DATA_TYPE_OBJECT:
|
|
av_log(ctx, AV_LOG_DEBUG, " {\n");
|
|
while (nb-- > 0 || type != AMF_DATA_TYPE_ARRAY) {
|
|
int t;
|
|
if (parse_key) {
|
|
size = bytestream_get_be16(&data);
|
|
size = FFMIN(size, sizeof(buf) - 1);
|
|
if (!size) {
|
|
av_log(ctx, AV_LOG_DEBUG, " }\n");
|
|
data++;
|
|
break;
|
|
}
|
|
memcpy(buf, data, size);
|
|
buf[size] = 0;
|
|
if (size >= data_end - data)
|
|
return;
|
|
data += size;
|
|
av_log(ctx, AV_LOG_DEBUG, " %s: ", buf);
|
|
}
|
|
amf_tag_contents(ctx, data, data_end);
|
|
t = ff_amf_tag_size(data, data_end);
|
|
if (t < 0 || t >= data_end - data)
|
|
return;
|
|
data += t;
|
|
}
|
|
return;
|
|
case AMF_DATA_TYPE_OBJECT_END:
|
|
av_log(ctx, AV_LOG_DEBUG, " }\n");
|
|
return;
|
|
default:
|
|
return;
|
|
}
|
|
}
|
|
|
|
void ff_rtmp_packet_dump(void *ctx, RTMPPacket *p)
|
|
{
|
|
av_log(ctx, AV_LOG_DEBUG, "RTMP packet type '%s'(%d) for channel %d, timestamp %d, extra field %d size %d\n",
|
|
rtmp_packet_type(p->type), p->type, p->channel_id, p->timestamp, p->extra, p->size);
|
|
if (p->type == RTMP_PT_INVOKE || p->type == RTMP_PT_NOTIFY) {
|
|
uint8_t *src = p->data, *src_end = p->data + p->size;
|
|
while (src < src_end) {
|
|
int sz;
|
|
amf_tag_contents(ctx, src, src_end);
|
|
sz = ff_amf_tag_size(src, src_end);
|
|
if (sz < 0)
|
|
break;
|
|
src += sz;
|
|
}
|
|
} else if (p->type == RTMP_PT_WINDOW_ACK_SIZE) {
|
|
av_log(ctx, AV_LOG_DEBUG, "Window acknowledgement size = %d\n", AV_RB32(p->data));
|
|
} else if (p->type == RTMP_PT_SET_PEER_BW) {
|
|
av_log(ctx, AV_LOG_DEBUG, "Set Peer BW = %d\n", AV_RB32(p->data));
|
|
} else if (p->type != RTMP_PT_AUDIO && p->type != RTMP_PT_VIDEO && p->type != RTMP_PT_METADATA) {
|
|
int i;
|
|
for (i = 0; i < p->size; i++)
|
|
av_log(ctx, AV_LOG_DEBUG, " %02X", p->data[i]);
|
|
av_log(ctx, AV_LOG_DEBUG, "\n");
|
|
}
|
|
}
|
|
|
|
int ff_amf_match_string(const uint8_t *data, int size, const char *str)
|
|
{
|
|
int len = strlen(str);
|
|
int amf_len, type;
|
|
|
|
if (size < 1)
|
|
return 0;
|
|
|
|
type = *data++;
|
|
|
|
if (type != AMF_DATA_TYPE_LONG_STRING &&
|
|
type != AMF_DATA_TYPE_STRING)
|
|
return 0;
|
|
|
|
if (type == AMF_DATA_TYPE_LONG_STRING) {
|
|
if ((size -= 4 + 1) < 0)
|
|
return 0;
|
|
amf_len = bytestream_get_be32(&data);
|
|
} else {
|
|
if ((size -= 2 + 1) < 0)
|
|
return 0;
|
|
amf_len = bytestream_get_be16(&data);
|
|
}
|
|
|
|
if (amf_len > size)
|
|
return 0;
|
|
|
|
if (amf_len != len)
|
|
return 0;
|
|
|
|
return !memcmp(data, str, len);
|
|
}
|