* RTMP input format
* Copyright (c) 2009 Kostya Shishkov
*
- * This file is part of FFmpeg.
+ * This file is part of Libav.
*
- * FFmpeg is free software; you can redistribute it and/or
+ * Libav 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,
+ * Libav 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
+ * License along with Libav; 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)
{
void ff_amf_write_number(uint8_t **dst, double val)
{
bytestream_put_byte(dst, AMF_DATA_TYPE_NUMBER);
- bytestream_put_be64(dst, av_dbl2int(val));
+ bytestream_put_be64(dst, av_double2int(val));
}
void ff_amf_write_string(uint8_t **dst, const char *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);
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_read_string(GetByteContext *bc, uint8_t *str,
+ int strsize, int *length)
+{
+ int stringlen = 0;
+ int readsize;
+ if (bytestream2_get_byte(bc) != AMF_DATA_TYPE_STRING)
+ return AVERROR_INVALIDDATA;
+ 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_null(GetByteContext *bc)
+{
+ if (bytestream2_get_byte(bc) != AMF_DATA_TYPE_NULL)
+ return AVERROR_INVALIDDATA;
+ return 0;
+}
+
int ff_rtmp_packet_read(URLContext *h, RTMPPacket *p,
int chunk_size, RTMPPacket *prev_pkt)
{
- uint8_t hdr, t, buf[16];
+ 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, hdr);
+}
+
+int ff_rtmp_packet_read_internal(URLContext *h, RTMPPacket *p, int chunk_size,
+ RTMPPacket *prev_pkt, uint8_t hdr)
+{
+
+ uint8_t t, buf[16];
int channel_id, timestamp, data_size, offset = 0;
uint32_t extra = 0;
enum RTMPPacketType type;
+ int size = 0;
+ int ret;
- if (url_read(h, &hdr, 1) != 1)
- return AVERROR(EIO);
+ size++;
channel_id = hdr & 0x3F;
if (channel_id < 2) { //special case for channel number >= 64
buf[1] = 0;
- if (url_read_complete(h, buf, channel_id + 1) != channel_id + 1)
+ if (ffurl_read_complete(h, buf, channel_id + 1) != channel_id + 1)
return AVERROR(EIO);
+ size += channel_id + 1;
channel_id = AV_RL16(buf) + 64;
}
data_size = prev_pkt[channel_id].data_size;
if (hdr == RTMP_PS_ONEBYTE) {
timestamp = prev_pkt[channel_id].ts_delta;
} else {
- if (url_read_complete(h, buf, 3) != 3)
+ if (ffurl_read_complete(h, buf, 3) != 3)
return AVERROR(EIO);
+ size += 3;
timestamp = AV_RB24(buf);
if (hdr != RTMP_PS_FOURBYTES) {
- if (url_read_complete(h, buf, 3) != 3)
+ if (ffurl_read_complete(h, buf, 3) != 3)
return AVERROR(EIO);
+ size += 3;
data_size = AV_RB24(buf);
- if (url_read_complete(h, buf, 1) != 1)
+ if (ffurl_read_complete(h, buf, 1) != 1)
return AVERROR(EIO);
+ size++;
type = buf[0];
if (hdr == RTMP_PS_TWELVEBYTES) {
- if (url_read_complete(h, buf, 4) != 4)
+ if (ffurl_read_complete(h, buf, 4) != 4)
return AVERROR(EIO);
+ size += 4;
extra = AV_RL32(buf);
}
}
if (timestamp == 0xFFFFFF) {
- if (url_read_complete(h, buf, 4) != 4)
+ if (ffurl_read_complete(h, buf, 4) != 4)
return AVERROR(EIO);
timestamp = AV_RB32(buf);
}
if (hdr != RTMP_PS_TWELVEBYTES)
timestamp += prev_pkt[channel_id].timestamp;
- if (ff_rtmp_packet_create(p, channel_id, type, timestamp, data_size))
- return -1;
+ if ((ret = ff_rtmp_packet_create(p, channel_id, type, timestamp,
+ data_size)) < 0)
+ return ret;
p->extra = extra;
// save history
prev_pkt[channel_id].channel_id = channel_id;
prev_pkt[channel_id].extra = extra;
while (data_size > 0) {
int toread = FFMIN(data_size, chunk_size);
- if (url_read_complete(h, p->data + offset, toread) != toread) {
+ if (ffurl_read_complete(h, p->data + offset, toread) != toread) {
ff_rtmp_packet_destroy(p);
return AVERROR(EIO);
}
data_size -= chunk_size;
offset += chunk_size;
+ size += chunk_size;
if (data_size > 0) {
- url_read_complete(h, &t, 1); //marker
+ if ((ret = ffurl_read_complete(h, &t, 1)) < 0) { // marker
+ ff_rtmp_packet_destroy(p);
+ return ret;
+ }
+ size++;
if (t != (0xC0 + channel_id))
return -1;
}
}
- return 0;
+ return size;
}
int ff_rtmp_packet_write(URLContext *h, RTMPPacket *pkt,
uint8_t pkt_hdr[16], *p = pkt_hdr;
int mode = RTMP_PS_TWELVEBYTES;
int off = 0;
+ int size = 0;
+ int ret;
pkt->ts_delta = pkt->timestamp - prev_pkt[pkt->channel_id].timestamp;
}
prev_pkt[pkt->channel_id].extra = pkt->extra;
- url_write(h, pkt_hdr, p-pkt_hdr);
+ if ((ret = ffurl_write(h, pkt_hdr, p - pkt_hdr)) < 0)
+ return ret;
+ size = p - pkt_hdr + pkt->data_size;
while (off < pkt->data_size) {
int towrite = FFMIN(chunk_size, pkt->data_size - off);
- url_write(h, pkt->data + off, towrite);
+ if ((ret = ffurl_write(h, pkt->data + off, towrite)) < 0)
+ return ret;
off += towrite;
if (off < pkt->data_size) {
uint8_t marker = 0xC0 | pkt->channel_id;
- url_write(h, &marker, 1);
+ if ((ret = ffurl_write(h, &marker, 1)) < 0)
+ return ret;
+ size++;
}
}
- return 0;
+ return size;
}
int ff_rtmp_packet_create(RTMPPacket *pkt, int channel_id, RTMPPacketType type,
int timestamp, int size)
{
- pkt->data = av_malloc(size);
- if (!pkt->data)
- return AVERROR(ENOMEM);
+ if (size) {
+ pkt->data = av_malloc(size);
+ if (!pkt->data)
+ return AVERROR(ENOMEM);
+ }
pkt->data_size = size;
pkt->channel_id = channel_id;
pkt->type = type;
data++;
break;
}
- if (data + size >= data_end || data + size < data)
+ if (size < 0 || size >= data_end - data)
return -1;
data += size;
t = ff_amf_tag_size(data, data_end);
- if (t < 0 || data + t >= data_end)
+ if (t < 0 || t >= data_end - data)
return -1;
data += t;
}
int size = bytestream_get_be16(&data);
if (!size)
break;
- if (data + size >= data_end || data + size < data)
+ if (size < 0 || size >= data_end - data)
return -1;
data += size;
if (size == namelen && !memcmp(data-size, name, namelen)) {
switch (*data++) {
case AMF_DATA_TYPE_NUMBER:
- snprintf(dst, dst_size, "%g", av_int2dbl(AV_RB64(data)));
+ snprintf(dst, dst_size, "%g", av_int2double(AV_RB64(data)));
break;
case AMF_DATA_TYPE_BOOL:
snprintf(dst, dst_size, "%s", *data ? "true" : "false");
return 0;
}
len = ff_amf_tag_size(data, data_end);
- if (len < 0 || data + len >= data_end || data + len < data)
+ if (len < 0 || len >= data_end - data)
return -1;
data += len;
}
static void ff_amf_tag_contents(void *ctx, const uint8_t *data, const uint8_t *data_end)
{
- int size;
+ unsigned int size;
char buf[1024];
if (data >= data_end)
return;
switch (*data++) {
case AMF_DATA_TYPE_NUMBER:
- av_log(ctx, AV_LOG_DEBUG, " number %g\n", av_int2dbl(AV_RB64(data)));
+ 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);
if (data[-1] == AMF_DATA_TYPE_STRING) {
size = bytestream_get_be16(&data);
} else {
- size = bytestream_get_be32(data);
+ size = bytestream_get_be32(&data);
}
- size = FFMIN(size, 1023);
+ size = FFMIN(size, sizeof(buf) - 1);
memcpy(buf, data, size);
buf[size] = 0;
av_log(ctx, AV_LOG_DEBUG, " string '%s'\n", buf);
case AMF_DATA_TYPE_OBJECT:
av_log(ctx, AV_LOG_DEBUG, " {\n");
for (;;) {
- int size = bytestream_get_be16(&data);
int t;
- memcpy(buf, data, size);
- buf[size] = 0;
+ size = bytestream_get_be16(&data);
+ av_strlcpy(buf, data, FFMIN(sizeof(buf), size + 1));
if (!size) {
av_log(ctx, AV_LOG_DEBUG, " }\n");
data++;
break;
}
- if (data + size >= data_end || data + size < data)
+ if (size >= data_end - data)
return;
data += size;
av_log(ctx, AV_LOG_DEBUG, " %s: ", buf);
ff_amf_tag_contents(ctx, data, data_end);
t = ff_amf_tag_size(data, data_end);
- if (t < 0 || data + t >= data_end)
+ if (t < 0 || t >= data_end - data)
return;
data += t;
}
projects / ffmpeg / blobdiff