chasing indexing error

1 files changed, 0 insertions, 413 deletions

diff --git a/ffmpeg/libavformat/mmsh.c b/ffmpeg/libavformat/mmsh.c
deleted file mode 100644
index 482ece4..0000000
--- a/ffmpeg/libavformat/mmsh.c
+++ /dev/null
@@ -1,413 +0,0 @@
-/*
- * 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 "libavutil/opt.h"
-#include "internal.h"
-#include "mms.h"
-#include "asf.h"
-#include "http.h"
-#include "url.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;
-    uint8_t location[1024];
-    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)
-        ffurl_closep(&mms->mms_hd);
-    av_freep(&mms->streams);
-    av_freep(&mms->asf_header);
-    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 = ffurl_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 = ffurl_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 %zu\n",
-               len, sizeof(mms->in_buffer));
-        return AVERROR(EIO);
-    }
-    res = ffurl_read_complete(mms->mms_hd, mms->in_buffer, len);
-    av_dlog(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;
-        res = chunk_type = get_chunk_header(mmsh, &len);
-        if (res < 0) {
-            return res;
-        } 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;
-                        av_dlog(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 = ffurl_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 %zu\n",
-                           len, sizeof(mms->in_buffer));
-                    return AVERROR(EIO);
-                }
-                res = ffurl_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 {
-                    av_dlog(NULL, "Skip chunk type %d \n", chunk_type);
-                    continue;
-                }
-            }
-        }
-    }
-}
-
-static int mmsh_open_internal(URLContext *h, const char *uri, int flags, int timestamp, int64_t pos)
-{
-    int i, port, err;
-    char httpname[256], path[256], host[128];
-    char *stream_selection = NULL;
-    char headers[1024];
-    MMSHContext *mmsh = h->priv_data;
-    MMSContext *mms;
-
-    mmsh->request_seq = h->is_streamed = 1;
-    mms = &mmsh->mms;
-    av_strlcpy(mmsh->location, uri, sizeof(mmsh->location));
-
-    av_url_split(NULL, 0, NULL, 0,
-        host, sizeof(host), &port, path, sizeof(path), mmsh->location);
-    if (port<0)
-        port = 80; // default mmsh protocol port
-    ff_url_join(httpname, sizeof(httpname), "http", NULL, host, port, "%s", path);
-
-    if (ffurl_alloc(&mms->mms_hd, httpname, AVIO_FLAG_READ,
-                    &h->interrupt_callback) < 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",
-             host, port, mmsh->request_seq++);
-    av_opt_set(mms->mms_hd->priv_data, "headers", headers, 0);
-
-    err = ffurl_connect(mms->mms_hd, NULL);
-    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.
-    ffurl_close(mms->mms_hd);
-    memset(headers, 0, sizeof(headers));
-    if ((err = ffurl_alloc(&mms->mms_hd, httpname, AVIO_FLAG_READ,
-                           &h->interrupt_callback)) < 0) {
-        goto fail;
-    }
-    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"
-                   "Pragma: no-cache,rate=1.000000,stream-time=%u"
-                   "Connection: Close\r\n",
-                   host, port, mmsh->request_seq++, mms->stream_num, stream_selection, timestamp);
-    av_freep(&stream_selection);
-    if (err < 0) {
-        av_log(NULL, AV_LOG_ERROR, "Build play request failed!\n");
-        goto fail;
-    }
-    av_dlog(NULL, "out_buffer is %s", headers);
-    av_opt_set(mms->mms_hd->priv_data, "headers", headers, 0);
-
-    err = ffurl_connect(mms->mms_hd, NULL);
-    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;
-    }
-
-    av_dlog(NULL, "Connection successfully open\n");
-    return 0;
-fail:
-    av_freep(&stream_selection);
-    mmsh_close(h);
-    av_dlog(NULL, "Connection failed with error %d\n", err);
-    return err;
-}
-
-static int mmsh_open(URLContext *h, const char *uri, int flags)
-{
-    return mmsh_open_internal(h, uri, flags, 0, 0);
-}
-
-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;
-}
-
-static int64_t mmsh_read_seek(URLContext *h, int stream_index,
-                        int64_t timestamp, int flags)
-{
-    MMSHContext *mmsh_old = h->priv_data;
-    MMSHContext *mmsh     = av_mallocz(sizeof(*mmsh));
-    int ret;
-
-    if (!mmsh)
-        return AVERROR(ENOMEM);
-
-    h->priv_data = mmsh;
-    ret= mmsh_open_internal(h, mmsh_old->location, 0, FFMAX(timestamp, 0), 0);
-    if(ret>=0){
-        h->priv_data = mmsh_old;
-        mmsh_close(h);
-        h->priv_data = mmsh;
-        av_free(mmsh_old);
-        mmsh->mms.asf_header_read_size = mmsh->mms.asf_header_size;
-    }else {
-        h->priv_data = mmsh_old;
-        av_free(mmsh);
-    }
-
-    return ret;
-}
-
-static int64_t mmsh_seek(URLContext *h, int64_t pos, int whence)
-{
-    MMSHContext *mmsh = h->priv_data;
-    MMSContext *mms   = &mmsh->mms;
-
-    if(pos == 0 && whence == SEEK_CUR)
-        return mms->asf_header_read_size + mms->remaining_in_len + mmsh->chunk_seq * (int64_t)mms->asf_packet_len;
-    return AVERROR(ENOSYS);
-}
-
-URLProtocol ff_mmsh_protocol = {
-    .name           = "mmsh",
-    .url_open       = mmsh_open,
-    .url_read       = mmsh_read,
-    .url_seek       = mmsh_seek,
-    .url_close      = mmsh_close,
-    .url_read_seek  = mmsh_read_seek,
-    .priv_data_size = sizeof(MMSHContext),
-    .flags          = URL_PROTOCOL_FLAG_NETWORK,
-};