mirror of
https://github.com/FFmpeg/FFmpeg.git
synced 2025-01-24 13:56:33 +02:00
MMSH support, the most popular and widely used of all MMS variants. Written by
Zhentan Feng <spyfeng gmail com> as part of Google's Summer of Code program. Originally committed as revision 24861 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Ronald S. Bultje
parent
c901f6ab6f
commit
f5ea69b235
@ -286,7 +286,6 @@ Muxers/Demuxers:
|
||||
matroskaenc.c David Conrad
|
||||
metadata* Aurelien Jacobs
|
||||
mm.c Peter Ross
|
||||
mmst.c Ronald S. Bultje
|
||||
mov.c Michael Niedermayer, Baptiste Coudurier
|
||||
movenc.c Michael Niedermayer, Baptiste Coudurier
|
||||
mpc.c Kostya Shishkov
|
||||
@ -330,6 +329,7 @@ Muxers/Demuxers:
|
||||
|
||||
Protocols:
|
||||
http.c Ronald S. Bultje
|
||||
mms*.c Ronald S. Bultje
|
||||
udp.c Luca Abeni
|
||||
|
||||
|
||||
|
||||
@ -73,6 +73,15 @@ HTTP (Hyper Text Transfer Protocol).
|
||||
|
||||
MMS (Microsoft Media Server) protocol over TCP.
|
||||
|
||||
@section mmsh
|
||||
|
||||
MMS (Microsoft Media Server) protocol over HTTP.
|
||||
|
||||
The required syntax is:
|
||||
@example
|
||||
mmsh://@var{server}[:@var{port}][/@var{app}][/@var{playpath}]
|
||||
@end example
|
||||
|
||||
@section md5
|
||||
|
||||
MD5 output protocol.
|
||||
|
||||
@ -292,6 +292,7 @@ OBJS+= avio.o aviobuf.o
|
||||
OBJS-$(CONFIG_FILE_PROTOCOL) += file.o
|
||||
OBJS-$(CONFIG_GOPHER_PROTOCOL) += gopher.o
|
||||
OBJS-$(CONFIG_HTTP_PROTOCOL) += http.o httpauth.o
|
||||
OBJS-$(CONFIG_MMSH_PROTOCOL) += mmsh.o mms.o asf.o
|
||||
OBJS-$(CONFIG_MMST_PROTOCOL) += mmst.o mms.o asf.o
|
||||
OBJS-$(CONFIG_MD5_PROTOCOL) += md5proto.o
|
||||
OBJS-$(CONFIG_PIPE_PROTOCOL) += file.o
|
||||
|
||||
@ -226,6 +226,7 @@ void av_register_all(void)
|
||||
REGISTER_PROTOCOL (FILE, file);
|
||||
REGISTER_PROTOCOL (GOPHER, gopher);
|
||||
REGISTER_PROTOCOL (HTTP, http);
|
||||
REGISTER_PROTOCOL (MMSH, mmsh);
|
||||
REGISTER_PROTOCOL (MMST, mmst);
|
||||
REGISTER_PROTOCOL (MD5, md5);
|
||||
REGISTER_PROTOCOL (PIPE, pipe);
|
||||
|
||||
369
libavformat/mmsh.c
Normal file
369
libavformat/mmsh.c
Normal file
@ -0,0 +1,369 @@
|
||||
/*
|
||||
* MMS protocol over HTTP
|
||||
* Copyright (c) 2010 Zhentan Feng <spyfeng at gmail dot com>
|
||||
*
|
||||
* 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
|
||||
*/
|
||||
|
||||
/*
|
||||
* Reference
|
||||
* Windows Media HTTP Streaming Protocol.
|
||||
* http://msdn.microsoft.com/en-us/library/cc251059(PROT.10).aspx
|
||||
*/
|
||||
|
||||
#include <string.h>
|
||||
#include "libavutil/intreadwrite.h"
|
||||
#include "libavutil/avstring.h"
|
||||
#include "libavformat/internal.h"
|
||||
#include "mms.h"
|
||||
#include "asf.h"
|
||||
#include "http.h"
|
||||
|
||||
#define CHUNK_HEADER_LENGTH 4 // 2bytes chunk type and 2bytes chunk length.
|
||||
#define EXT_HEADER_LENGTH 8 // 4bytes sequence, 2bytes useless and 2bytes chunk length.
|
||||
|
||||
// see Ref 2.2.1.8
|
||||
#define USERAGENT "User-Agent: NSPlayer/4.1.0.3856\r\n"
|
||||
// see Ref 2.2.1.4.33
|
||||
// the guid value can be changed to any valid value.
|
||||
#define CLIENTGUID "Pragma: xClientGUID={c77e7400-738a-11d2-9add-0020af0a3278}\r\n"
|
||||
|
||||
// see Ref 2.2.3 for packet type define:
|
||||
// chunk type contains 2 fields: Frame and PacketID.
|
||||
// Frame is 0x24 or 0xA4(rarely), different PacketID indicates different packet type.
|
||||
typedef enum {
|
||||
CHUNK_TYPE_DATA = 0x4424,
|
||||
CHUNK_TYPE_ASF_HEADER = 0x4824,
|
||||
CHUNK_TYPE_END = 0x4524,
|
||||
CHUNK_TYPE_STREAM_CHANGE = 0x4324,
|
||||
} ChunkType;
|
||||
|
||||
typedef struct {
|
||||
MMSContext mms;
|
||||
int request_seq; ///< request packet sequence
|
||||
int chunk_seq; ///< data packet sequence
|
||||
} MMSHContext;
|
||||
|
||||
static int mmsh_close(URLContext *h)
|
||||
{
|
||||
MMSHContext *mmsh = (MMSHContext *)h->priv_data;
|
||||
MMSContext *mms = &mmsh->mms;
|
||||
if (mms->mms_hd)
|
||||
url_close(mms->mms_hd);
|
||||
av_free(mms->streams);
|
||||
av_free(mms->asf_header);
|
||||
av_freep(&h->priv_data);
|
||||
return 0;
|
||||
}
|
||||
|
||||
static ChunkType get_chunk_header(MMSHContext *mmsh, int *len)
|
||||
{
|
||||
MMSContext *mms = &mmsh->mms;
|
||||
uint8_t chunk_header[CHUNK_HEADER_LENGTH];
|
||||
uint8_t ext_header[EXT_HEADER_LENGTH];
|
||||
ChunkType chunk_type;
|
||||
int chunk_len, res, ext_header_len;
|
||||
|
||||
res = url_read_complete(mms->mms_hd, chunk_header, CHUNK_HEADER_LENGTH);
|
||||
if (res != CHUNK_HEADER_LENGTH) {
|
||||
av_log(NULL, AV_LOG_ERROR, "Read data packet header failed!\n");
|
||||
return AVERROR(EIO);
|
||||
}
|
||||
chunk_type = AV_RL16(chunk_header);
|
||||
chunk_len = AV_RL16(chunk_header + 2);
|
||||
|
||||
switch (chunk_type) {
|
||||
case CHUNK_TYPE_END:
|
||||
case CHUNK_TYPE_STREAM_CHANGE:
|
||||
ext_header_len = 4;
|
||||
break;
|
||||
case CHUNK_TYPE_ASF_HEADER:
|
||||
case CHUNK_TYPE_DATA:
|
||||
ext_header_len = 8;
|
||||
break;
|
||||
default:
|
||||
av_log(NULL, AV_LOG_ERROR, "Strange chunk type %d\n", chunk_type);
|
||||
return AVERROR_INVALIDDATA;
|
||||
}
|
||||
|
||||
res = url_read_complete(mms->mms_hd, ext_header, ext_header_len);
|
||||
if (res != ext_header_len) {
|
||||
av_log(NULL, AV_LOG_ERROR, "Read ext header failed!\n");
|
||||
return AVERROR(EIO);
|
||||
}
|
||||
*len = chunk_len - ext_header_len;
|
||||
if (chunk_type == CHUNK_TYPE_END || chunk_type == CHUNK_TYPE_DATA)
|
||||
mmsh->chunk_seq = AV_RL32(ext_header);
|
||||
return chunk_type;
|
||||
}
|
||||
|
||||
static int read_data_packet(MMSHContext *mmsh, const int len)
|
||||
{
|
||||
MMSContext *mms = &mmsh->mms;
|
||||
int res;
|
||||
if (len > sizeof(mms->in_buffer)) {
|
||||
av_log(NULL, AV_LOG_ERROR,
|
||||
"Data packet length %d exceeds the in_buffer size %d\n",
|
||||
len, sizeof(mms->in_buffer));
|
||||
return AVERROR(EIO);
|
||||
}
|
||||
res = url_read_complete(mms->mms_hd, mms->in_buffer, len);
|
||||
dprintf(NULL, "Data packet len = %d\n", len);
|
||||
if (res != len) {
|
||||
av_log(NULL, AV_LOG_ERROR, "Read data packet failed!\n");
|
||||
return AVERROR(EIO);
|
||||
}
|
||||
if (len > mms->asf_packet_len) {
|
||||
av_log(NULL, AV_LOG_ERROR,
|
||||
"Chunk length %d exceed packet length %d\n",len, mms->asf_packet_len);
|
||||
return AVERROR_INVALIDDATA;
|
||||
} else {
|
||||
memset(mms->in_buffer + len, 0, mms->asf_packet_len - len); // padding
|
||||
}
|
||||
mms->read_in_ptr = mms->in_buffer;
|
||||
mms->remaining_in_len = mms->asf_packet_len;
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int get_http_header_data(MMSHContext *mmsh)
|
||||
{
|
||||
MMSContext *mms = &mmsh->mms;
|
||||
int res, len;
|
||||
ChunkType chunk_type;
|
||||
|
||||
for (;;) {
|
||||
len = 0;
|
||||
chunk_type = get_chunk_header(mmsh, &len);
|
||||
if (chunk_type < 0) {
|
||||
return chunk_type;
|
||||
} else if (chunk_type == CHUNK_TYPE_ASF_HEADER){
|
||||
// get asf header and stored it
|
||||
if (!mms->header_parsed) {
|
||||
if (mms->asf_header) {
|
||||
if (len != mms->asf_header_size) {
|
||||
mms->asf_header_size = len;
|
||||
dprintf(NULL, "Header len changed from %d to %d\n",
|
||||
mms->asf_header_size, len);
|
||||
av_freep(&mms->asf_header);
|
||||
}
|
||||
}
|
||||
mms->asf_header = av_mallocz(len);
|
||||
if (!mms->asf_header) {
|
||||
return AVERROR(ENOMEM);
|
||||
}
|
||||
mms->asf_header_size = len;
|
||||
}
|
||||
if (len > mms->asf_header_size) {
|
||||
av_log(NULL, AV_LOG_ERROR,
|
||||
"Asf header packet len = %d exceed the asf header buf size %d\n",
|
||||
len, mms->asf_header_size);
|
||||
return AVERROR(EIO);
|
||||
}
|
||||
res = url_read_complete(mms->mms_hd, mms->asf_header, len);
|
||||
if (res != len) {
|
||||
av_log(NULL, AV_LOG_ERROR,
|
||||
"Recv asf header data len %d != expected len %d\n", res, len);
|
||||
return AVERROR(EIO);
|
||||
}
|
||||
mms->asf_header_size = len;
|
||||
if (!mms->header_parsed) {
|
||||
res = ff_mms_asf_header_parser(mms);
|
||||
mms->header_parsed = 1;
|
||||
return res;
|
||||
}
|
||||
} else if (chunk_type == CHUNK_TYPE_DATA) {
|
||||
// read data packet and do padding
|
||||
return read_data_packet(mmsh, len);
|
||||
} else {
|
||||
if (len) {
|
||||
if (len > sizeof(mms->in_buffer)) {
|
||||
av_log(NULL, AV_LOG_ERROR,
|
||||
"Other packet len = %d exceed the in_buffer size %d\n",
|
||||
len, sizeof(mms->in_buffer));
|
||||
return AVERROR(EIO);
|
||||
}
|
||||
res = url_read_complete(mms->mms_hd, mms->in_buffer, len);
|
||||
if (res != len) {
|
||||
av_log(NULL, AV_LOG_ERROR, "Read other chunk type data failed!\n");
|
||||
return AVERROR(EIO);
|
||||
} else {
|
||||
dprintf(NULL, "Skip chunk type %d \n", chunk_type);
|
||||
continue;
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int mmsh_open(URLContext *h, const char *uri, int flags)
|
||||
{
|
||||
int i, port, err;
|
||||
char httpname[256], path[256], host[128], location[1024];
|
||||
char *stream_selection;
|
||||
char headers[1024];
|
||||
MMSHContext *mmsh;
|
||||
MMSContext *mms;
|
||||
|
||||
mmsh = h->priv_data = av_mallocz(sizeof(MMSHContext));
|
||||
if (!h->priv_data)
|
||||
return AVERROR(ENOMEM);
|
||||
mmsh->request_seq = h->is_streamed = 1;
|
||||
mms = &mmsh->mms;
|
||||
av_strlcpy(location, uri, sizeof(location));
|
||||
|
||||
av_url_split(NULL, 0, NULL, 0,
|
||||
host, sizeof(host), &port, path, sizeof(path), location);
|
||||
if (port<0)
|
||||
port = 80; // default mmsh protocol port
|
||||
ff_url_join(httpname, sizeof(httpname), "http", NULL, host, port, path);
|
||||
|
||||
if (url_alloc(&mms->mms_hd, httpname, URL_RDONLY) < 0) {
|
||||
return AVERROR(EIO);
|
||||
}
|
||||
|
||||
snprintf(headers, sizeof(headers),
|
||||
"Accept: */*\r\n"
|
||||
USERAGENT
|
||||
"Host: %s:%d\r\n"
|
||||
"Pragma: no-cache,rate=1.000000,stream-time=0,"
|
||||
"stream-offset=0:0,request-context=%u,max-duration=0\r\n"
|
||||
CLIENTGUID
|
||||
"Connection: Close\r\n\r\n",
|
||||
host, port, mmsh->request_seq++);
|
||||
ff_http_set_headers(mms->mms_hd, headers);
|
||||
|
||||
err = url_connect(mms->mms_hd);
|
||||
if (err) {
|
||||
goto fail;
|
||||
}
|
||||
err = get_http_header_data(mmsh);
|
||||
if (err) {
|
||||
av_log(NULL, AV_LOG_ERROR, "Get http header data failed!\n");
|
||||
goto fail;
|
||||
}
|
||||
|
||||
// close the socket and then reopen it for sending the second play request.
|
||||
url_close(mms->mms_hd);
|
||||
memset(headers, 0, sizeof(headers));
|
||||
if (url_alloc(&mms->mms_hd, httpname, URL_RDONLY) < 0) {
|
||||
return AVERROR(EIO);
|
||||
}
|
||||
stream_selection = av_mallocz(mms->stream_num * 19 + 1);
|
||||
if (!stream_selection)
|
||||
return AVERROR(ENOMEM);
|
||||
for (i = 0; i < mms->stream_num; i++) {
|
||||
char tmp[20];
|
||||
err = snprintf(tmp, sizeof(tmp), "ffff:%d:0 ", mms->streams[i].id);
|
||||
if (err < 0)
|
||||
goto fail;
|
||||
av_strlcat(stream_selection, tmp, mms->stream_num * 19 + 1);
|
||||
}
|
||||
// send play request
|
||||
err = snprintf(headers, sizeof(headers),
|
||||
"Accept: */*\r\n"
|
||||
USERAGENT
|
||||
"Host: %s:%d\r\n"
|
||||
"Pragma: no-cache,rate=1.000000,request-context=%u\r\n"
|
||||
"Pragma: xPlayStrm=1\r\n"
|
||||
CLIENTGUID
|
||||
"Pragma: stream-switch-count=%d\r\n"
|
||||
"Pragma: stream-switch-entry=%s\r\n"
|
||||
"Connection: Close\r\n\r\n",
|
||||
host, port, mmsh->request_seq++, mms->stream_num, stream_selection);
|
||||
av_freep(&stream_selection);
|
||||
if (err < 0) {
|
||||
av_log(NULL, AV_LOG_ERROR, "Build play request failed!\n");
|
||||
goto fail;
|
||||
}
|
||||
dprintf(NULL, "out_buffer is %s", headers);
|
||||
ff_http_set_headers(mms->mms_hd, headers);
|
||||
|
||||
err = url_connect(mms->mms_hd);
|
||||
if (err) {
|
||||
goto fail;
|
||||
}
|
||||
|
||||
err = get_http_header_data(mmsh);
|
||||
if (err) {
|
||||
av_log(NULL, AV_LOG_ERROR, "Get http header data failed!\n");
|
||||
goto fail;
|
||||
}
|
||||
|
||||
dprintf(NULL, "Connection successfully open\n");
|
||||
return 0;
|
||||
fail:
|
||||
av_freep(&stream_selection);
|
||||
mmsh_close(h);
|
||||
dprintf(NULL, "Connection failed with error %d\n", err);
|
||||
return err;
|
||||
}
|
||||
|
||||
static int handle_chunk_type(MMSHContext *mmsh)
|
||||
{
|
||||
MMSContext *mms = &mmsh->mms;
|
||||
int res, len = 0;
|
||||
ChunkType chunk_type;
|
||||
chunk_type = get_chunk_header(mmsh, &len);
|
||||
|
||||
switch (chunk_type) {
|
||||
case CHUNK_TYPE_END:
|
||||
mmsh->chunk_seq = 0;
|
||||
av_log(NULL, AV_LOG_ERROR, "Stream ended!\n");
|
||||
return AVERROR(EIO);
|
||||
case CHUNK_TYPE_STREAM_CHANGE:
|
||||
mms->header_parsed = 0;
|
||||
if (res = get_http_header_data(mmsh)) {
|
||||
av_log(NULL, AV_LOG_ERROR,"Stream changed! Failed to get new header!\n");
|
||||
return res;
|
||||
}
|
||||
break;
|
||||
case CHUNK_TYPE_DATA:
|
||||
return read_data_packet(mmsh, len);
|
||||
default:
|
||||
av_log(NULL, AV_LOG_ERROR, "Recv other type packet %d\n", chunk_type);
|
||||
return AVERROR_INVALIDDATA;
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int mmsh_read(URLContext *h, uint8_t *buf, int size)
|
||||
{
|
||||
int res = 0;
|
||||
MMSHContext *mmsh = h->priv_data;
|
||||
MMSContext *mms = &mmsh->mms;
|
||||
do {
|
||||
if (mms->asf_header_read_size < mms->asf_header_size) {
|
||||
// copy asf header into buffer
|
||||
res = ff_mms_read_header(mms, buf, size);
|
||||
} else {
|
||||
if (!mms->remaining_in_len && (res = handle_chunk_type(mmsh)))
|
||||
return res;
|
||||
res = ff_mms_read_data(mms, buf, size);
|
||||
}
|
||||
} while (!res);
|
||||
return res;
|
||||
}
|
||||
|
||||
URLProtocol mmsh_protocol = {
|
||||
.name = "mmsh",
|
||||
.url_open = mmsh_open,
|
||||
.url_read = mmsh_read,
|
||||
.url_write = NULL,
|
||||
.url_seek = NULL,
|
||||
.url_close = mmsh_close,
|
||||
};
|
||||
Loading…
x
Reference in New Issue
Block a user