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Move read_mms_packet() code to be inlined in the calling function.

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Patch by Zhentan Feng <spyfeng gmail com>.

Originally committed as revision 24700 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Zhentan Feng 2010-08-04 22:34:43 +00:00 committed by Ronald S. Bultje
parent 05fc9a1bcf
commit aaa91aa00e
1 changed files with 43 additions and 50 deletions
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93
libavformat/mmst.c
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@ -544,55 +544,6 @@ static int read_data(MMSContext *mms, uint8_t *buf, const int buf_size)
return read_size; return read_size;
} }
/** Read at most one media packet (or a whole header). */
static int read_mms_packet(MMSContext *mms, uint8_t *buf, int buf_size)
{
int result = 0;
int size_to_copy;
do {
if(mms->asf_header_read_size < mms->asf_header_size) {
/* Read from ASF header buffer */
size_to_copy= FFMIN(buf_size,
mms->asf_header_size - mms->asf_header_read_size);
memcpy(buf, mms->asf_header + mms->asf_header_read_size, size_to_copy);
mms->asf_header_read_size += size_to_copy;
result += size_to_copy;
dprintf(NULL, "Copied %d bytes from stored header. left: %d\n",
size_to_copy, mms->asf_header_size - mms->asf_header_read_size);
if (mms->asf_header_size == mms->asf_header_read_size) {
av_freep(&mms->asf_header);
}
} else if(mms->remaining_in_len) {
/* Read remaining packet data to buffer.
* the result can not be zero because remaining_in_len is positive.*/
result = read_data(mms, buf, buf_size);
} else {
/* Read from network */
int err = mms_safe_send_recv(mms, NULL, SC_PKT_ASF_MEDIA);
if (err == 0) {
if(mms->remaining_in_len>mms->asf_packet_len) {
av_log(NULL, AV_LOG_ERROR,
"Incoming pktlen %d is larger than ASF pktsize %d\n",
mms->remaining_in_len, mms->asf_packet_len);
result= AVERROR_IO;
} else {
// copy the data to the packet buffer.
result = read_data(mms, buf, buf_size);
if (result == 0) {
dprintf(NULL, "read asf media paket size is zero!\n");
break;
}
}
} else {
dprintf(NULL, "read packet error!\n");
break;
}
}
} while(!result); // only return one packet.
return result;
}
static int send_close_packet(MMSContext *mms) static int send_close_packet(MMSContext *mms)
{ {
start_command_packet(mms, CS_PKT_STREAM_CLOSE); start_command_packet(mms, CS_PKT_STREAM_CLOSE);
@ -721,8 +672,50 @@ static int mms_read(URLContext *h, uint8_t *buf, int size)
{ {
/* TODO: see tcp.c:tcp_read() about a possible timeout scheme */ /* TODO: see tcp.c:tcp_read() about a possible timeout scheme */
MMSContext *mms = h->priv_data; MMSContext *mms = h->priv_data;
int result = 0;
int size_to_copy;
return read_mms_packet(mms, buf, size); do {
if(mms->asf_header_read_size < mms->asf_header_size) {
/* Read from ASF header buffer */
size_to_copy= FFMIN(size,
mms->asf_header_size - mms->asf_header_read_size);
memcpy(buf, mms->asf_header + mms->asf_header_read_size, size_to_copy);
mms->asf_header_read_size += size_to_copy;
result += size_to_copy;
dprintf(NULL, "Copied %d bytes from stored header. left: %d\n",
size_to_copy, mms->asf_header_size - mms->asf_header_read_size);
if (mms->asf_header_size == mms->asf_header_read_size) {
av_freep(&mms->asf_header);
}
} else if(mms->remaining_in_len) {
/* Read remaining packet data to buffer.
* the result can not be zero because remaining_in_len is positive.*/
result = read_data(mms, buf, size);
} else {
/* Read from network */
int err = mms_safe_send_recv(mms, NULL, SC_PKT_ASF_MEDIA);
if (err == 0) {
if(mms->remaining_in_len>mms->asf_packet_len) {
av_log(NULL, AV_LOG_ERROR,
"Incoming pktlen %d is larger than ASF pktsize %d\n",
mms->remaining_in_len, mms->asf_packet_len);
result= AVERROR_IO;
} else {
// copy the data to the packet buffer.
result = read_data(mms, buf, size);
if (result == 0) {
dprintf(NULL, "read asf media paket size is zero!\n");
break;
}
}
} else {
dprintf(NULL, "read packet error!\n");
break;
}
}
} while(!result); // only return one packet.
return result;
} }
URLProtocol mmst_protocol = { URLProtocol mmst_protocol = {