matt335672
2f46ef27a2
cppcheck 2.17.0 adds checks that a NULL pointer returned from malloc() and calloc() is not used. We do this quite a lot. I've addressed this by adding functions g_malloc_nofail() and g_calloc_nofail() which either allocate memory or abort. functions are now called in places where we are not making these checks. Many of these checks are in test programs or example programs. I've modified the list16 module to handle out-of-memory conditions.
234 lines
8.4 KiB
C
234 lines
8.4 KiB
C
/**
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* xrdp: A Remote Desktop Protocol server.
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*
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* Copyright (C) Laxmikant Rashinkar 2012-2013 LK.Rashinkar@gmail.com
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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* a program that uses xrdpapi and ffmpeg to redirect media streams
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* to a FreeRDP client where it is decompressed and played locally
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*
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*/
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#ifndef __XRDPVR_INTERNAL_H__
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#define __XRDPVR_INTERNAL_H__
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#include <stdint.h>
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#include <sys/types.h>
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#include <fcntl.h>
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#include <libavcodec/avcodec.h>
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#include <libavformat/avformat.h>
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#if LIBAVCODEC_VERSION_MAJOR == 52 && LIBAVCODEC_VERSION_MINOR == 20
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#define DISTRO_DEBIAN6
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#endif
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#if LIBAVCODEC_VERSION_MAJOR == 52 && LIBAVCODEC_VERSION_MINOR == 72
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#define DISTRO_UBUNTU1104
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#endif
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#if LIBAVCODEC_VERSION_MAJOR == 53 && LIBAVCODEC_VERSION_MINOR == 35
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#define DISTRO_UBUNTU1204
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#endif
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#if !defined(DISTRO_DEBIAN6) && !defined(DISTRO_UBUNTU1104) && !defined(DISTRO_UBUNTU1204)
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#warning unsupported distro
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#endif
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#ifdef DISTRO_UBUNTU1204
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#define CODEC_TYPE_VIDEO AVMEDIA_TYPE_VIDEO
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#define CODEC_TYPE_AUDIO AVMEDIA_TYPE_AUDIO
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#define PKT_FLAG_KEY AV_PKT_FLAG_KEY
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#endif
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#define MAX_BUFSIZE (1024 * 1024 * 8)
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#define CMD_SET_VIDEO_FORMAT 1
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#define CMD_SET_AUDIO_FORMAT 2
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#define CMD_SEND_VIDEO_DATA 3
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#define CMD_SEND_AUDIO_DATA 4
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#define CMD_CREATE_META_DATA_FILE 5
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#define CMD_CLOSE_META_DATA_FILE 6
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#define CMD_WRITE_META_DATA 7
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#define CMD_DEINIT_XRDPVR 8
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#define CMD_SET_GEOMETRY 9
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#define CMD_SET_VOLUME 10
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#define CMD_INIT_XRDPVR 11
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/* max number of bytes we can send in one pkt */
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#define MAX_PDU_SIZE 1600
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typedef uint8_t u8;
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typedef uint16_t u16;
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typedef uint32_t u32;
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typedef struct stream
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{
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u8 *data;
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u8 *p;
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u32 size;
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int from_buf;
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} STREAM;
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/**
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* create and init a new stream
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*
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* @param _s stream to create and init
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* @param _len number of bytes to store in stream
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******************************************************************************/
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#define stream_new(_s, _len) \
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do \
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{ \
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(_s) = (STREAM *) calloc(1, sizeof(STREAM)); \
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if (!(_s)) \
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{ \
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abort(); \
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} \
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(_s)->data = (u8 *) calloc(1, (_len)); \
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(_s)->p = (_s)->data; \
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(_s)->size = (_len); \
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(_s)->from_buf = 0; \
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} while (0)
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/**
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* create a stream from an existing buffer
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******************************************************************************/
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#define stream_from_buffer(_s, _buf, _buf_len) \
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do \
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{ \
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(_s) = (STREAM *) calloc(1, sizeof(STREAM)); \
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(_s)->data = (u8 *) (_buf); \
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(_s)->p = (_s)->data; \
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(_s)->size = (_buf_len); \
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(_s)->from_buf = 1; \
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} while (0)
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/**
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* release stream resources, including stream itself
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* note: release _s->data only if we allocated it
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*
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* @param _s the stream whose resources are to be released
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******************************************************************************/
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#define stream_free(_s) \
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do \
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{ \
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if (!(_s)->from_buf) \
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{ \
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free((_s)->data); \
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} \
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free((_s)); \
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(_s) = NULL; \
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} while (0)
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/** return number of bytes in stream */
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#define stream_length(_s) (int) ((_s)->p - (_s)->data)
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/** insert a 8 bit value into stream */
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#define stream_ins_u8(_s, _val) \
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do \
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{ \
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*(_s)->p++ = (unsigned char) (_val); \
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} while(0)
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/** insert a 16 bit value into stream */
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#define stream_ins_u16_le(_s, _val) \
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do \
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{ \
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*(_s)->p++ = (unsigned char) ((_val) >> 0); \
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*(_s)->p++ = (unsigned char) ((_val) >> 8); \
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} while (0)
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/** insert a 32 bit value into stream */
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#define stream_ins_u32_le(_s, _val) \
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do \
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{ \
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*(_s)->p++ = (unsigned char) ((_val) >> 0); \
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*(_s)->p++ = (unsigned char) ((_val) >> 8); \
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*(_s)->p++ = (unsigned char) ((_val) >> 16); \
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*(_s)->p++ = (unsigned char) ((_val) >> 24); \
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} while (0)
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/** insert a 64 bit value into stream */
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#define stream_ins_u64_le(_s, _val) \
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do \
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{ \
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*(_s)->p++ = (unsigned char) ((_val) >> 0); \
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*(_s)->p++ = (unsigned char) ((_val) >> 8); \
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*(_s)->p++ = (unsigned char) ((_val) >> 16); \
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*(_s)->p++ = (unsigned char) ((_val) >> 24); \
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*(_s)->p++ = (unsigned char) ((_val) >> 32); \
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*(_s)->p++ = (unsigned char) ((_val) >> 40); \
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*(_s)->p++ = (unsigned char) ((_val) >> 48); \
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*(_s)->p++ = (unsigned char) ((_val) >> 56); \
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} while (0)
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/** insert array of chars into stream */
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#define stream_ins_byte_array(_s, _ba, _count) \
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do \
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{ \
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memcpy((_s)->p, (_ba), (_count)); \
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(_s)->p += (_count); \
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} while (0)
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/** extract a 8 bit value from stream */
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#define stream_ext_u8(_s, _v) \
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do \
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{ \
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(_v) = (u8) *(_s)->p++; \
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} while (0)
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/** extract a 16 bit value from stream */
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#define stream_ext_u16_le(_s, _v) \
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do \
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{ \
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(_v) = (u16) ((_s)->p[1] << 8 | (_s)->p[0]); \
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(_s)->p += 2; \
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} while (0)
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/** extract a 32 bit value from stream */
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#define stream_ext_u32_le(_s, _v) \
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do \
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{ \
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(_v) = (u32) ((_s)->p[3] << 24 | \
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(_s)->p[2] << 16 | \
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(_s)->p[1] << 8 | \
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(_s)->p[0]); \
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(_s)->p += 4; \
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} while (0)
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typedef struct _player_state_info
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{
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AVFormatContext *p_format_ctx;
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AVCodecContext *p_audio_codec_ctx;
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AVCodecContext *p_video_codec_ctx;
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AVCodec *p_audio_codec;
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AVCodec *p_video_codec;
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int audio_stream_index;
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int video_stream_index;
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double audioTimeout;
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double videoTimeout;
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/* LK_TODO delete this after we fix the problem */
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AVFrame *frame;
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AVPacket avpkt;
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AVBitStreamFilterContext *bsfc;
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} PLAYER_STATE_INFO;
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static int xrdpvr_read_from_client(void *channel, STREAM *s, int bytes, int timeout);
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static int xrdpvr_write_to_client(void *channel, STREAM *s);
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#endif /* __XRDPVR_INTERNAL_H__ */
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