/**
* send video data to client
*
* @param channel opaque handle returned by WTSVirtualChannelOpenEx
* @param stream_id unique identification number for this stream
* @param data_len number of bytes to send
* @param data video data to send
*
* @return 0 on success, -1 on error
*****************************************************************************/
int
xrdpvr_send_video_data(void *channel, uint32_t stream_id, uint32_t data_len, uint8_t *data)
{
STREAM *s;
char *cptr;
int rv;
int len;
stream_new(s, MAX_PDU_SIZE + data_len);
stream_ins_u32_le(s, 0); /* number of bytes to follow */
stream_ins_u32_le(s, CMD_SEND_VIDEO_DATA);
stream_ins_u32_le(s, stream_id);
stream_ins_u32_le(s, data_len);
stream_ins_byte_array(s, data, data_len);
/* insert number of bytes in stream */
len = stream_length(s) - 4;
cptr = s->p;
s->p = s->data;
stream_ins_u32_le(s, len);
s->p = cptr;
/* write data to virtual channel */
rv = xrdpvr_write_to_client(channel, s);
stream_free(s);
#ifdef DEBUG_FRAGMENTS
printf("### sent %d + 4 bytes video data to client\n", len);
#endif
return rv;
}
/**
* send audio data to client
*
* @param channel opaque handle returned by WTSVirtualChannelOpenEx
* @param stream_id unique identification number for this stream
* @param data_len number of bytes to send
* @param data audio data to send
*
* @return 0 on success, -1 on error
*****************************************************************************/
int
xrdpvr_send_audio_data(void *channel, uint32_t stream_id, uint32_t data_len, uint8_t *data)
{
STREAM *s;
char *cptr;
int rv;
int len;
stream_new(s, MAX_PDU_SIZE + data_len);
stream_ins_u32_le(s, 0); /* number of bytes to follow */
stream_ins_u32_le(s, CMD_SEND_AUDIO_DATA);
stream_ins_u32_le(s, stream_id);
stream_ins_u32_le(s, data_len);
stream_ins_byte_array(s, data, data_len);
/* insert number of bytes in stream */
len = stream_length(s) - 4;
cptr = s->p;
s->p = s->data;
stream_ins_u32_le(s, len);
s->p = cptr;
/* write data to virtual channel */
rv = xrdpvr_write_to_client(channel, s);
stream_free(s);
return rv;
}
int
xrdpvr_set_geometry(void *channel, int stream_id, int xpos, int ypos, int width, int height)
{
STREAM *s;
char *cptr;
int rv;
int len;
printf("xrdpvr_set_geometry: entered; x=%d y=%d\n", xpos, ypos);
stream_new(s, MAX_PDU_SIZE);
stream_ins_u32_le(s, 0); /* number of bytes to follow */
stream_ins_u32_le(s, CMD_SET_GEOMETRY);
stream_ins_u32_le(s, stream_id);
stream_ins_u32_le(s, xpos);
stream_ins_u32_le(s, ypos);
stream_ins_u32_le(s, width);
stream_ins_u32_le(s, height);
/* insert number of bytes in stream */
len = stream_length(s) - 4;
cptr = s->p;
s->p = s->data;
stream_ins_u32_le(s, len);
s->p = cptr;
/* write data to virtual channel */
rv = xrdpvr_write_to_client(channel, s);
stream_free(s);
return rv;
}
/**
* set audio format
*
* @param channel opaque handle returned by WTSVirtualChannelOpenEx
* @param stream_id unique identification number for this stream
*
* @return 0 on success, -1 on error
*****************************************************************************/
int
xrdpvr_set_audio_format(void *channel, uint32_t stream_id)
{
STREAM *s;
char *cptr;
int rv;
int len;
stream_new(s, MAX_PDU_SIZE);
stream_ins_u32_le(s, 0); /* number of bytes to follow */
stream_ins_u32_le(s, CMD_SET_AUDIO_FORMAT);
stream_ins_u32_le(s, stream_id);
/* insert number of bytes in stream */
len = stream_length(s) - 4;
cptr = s->p;
s->p = s->data;
stream_ins_u32_le(s, len);
s->p = cptr;
/* write data to virtual channel */
rv = xrdpvr_write_to_client(channel, s);
stream_free(s);
return rv;
}
int
xrdpvr_send_init(void *channel)
{
STREAM *s;
char *cptr;
int rv;
int len;
printf("xrdpvr_send_init:\n");
stream_new(s, MAX_BUFSIZE);
stream_ins_u32_le(s, 0); /* number of bytes to follow */
stream_ins_u32_le(s, CMD_INIT_XRDPVR);
/* insert number of bytes in stream */
len = stream_length(s) - 4;
cptr = s->p;
s->p = s->data;
stream_ins_u32_le(s, len);
s->p = cptr;
/* write data to virtual channel */
rv = xrdpvr_write_to_client(channel, s);
stream_free(s);
return rv;
}
/**
* write set volume to a xrdpvr client
*
* @param channel opaque handle returned by WTSVirtualChannelOpenEx
* @param volume volume 0x0000 to 0xffff
*
* @return 0 on success, -1 on failure
******************************************************************************/
int
xrdpvr_set_volume(void *channel, int volume)
{
STREAM *s;
char *cptr;
int rv;
int len;
stream_new(s, MAX_BUFSIZE);
stream_ins_u32_le(s, 0); /* number of bytes to follow */
stream_ins_u32_le(s, CMD_SET_VOLUME);
stream_ins_u32_le(s, volume);
/* insert number of bytes in stream */
len = stream_length(s) - 4;
cptr = s->p;
s->p = s->data;
stream_ins_u32_le(s, len);
s->p = cptr;
/* write data to virtual channel */
rv = xrdpvr_write_to_client(channel, s);
stream_free(s);
return rv;
}
/**
* set video format
*
* @param channel opaque handle returned by WTSVirtualChannelOpenEx
* @param stream_id unique identification number for this stream
*
* @return 0 on success, -1 on error
*****************************************************************************/
int
xrdpvr_set_video_format(void *channel, uint32_t stream_id, int format,
int width, int height)
{
STREAM *s;
char *cptr;
int rv;
int len;
width = (width + 15) & ~15;
stream_new(s, MAX_PDU_SIZE);
stream_ins_u32_le(s, 0); /* number of bytes to follow */
stream_ins_u32_le(s, CMD_SET_VIDEO_FORMAT);
stream_ins_u32_le(s, stream_id);
stream_ins_u32_le(s, format);
stream_ins_u32_le(s, width);
stream_ins_u32_le(s, height);
/* insert number of bytes in stream */
len = stream_length(s) - 4;
cptr = s->p;
s->p = s->data;
stream_ins_u32_le(s, len);
s->p = cptr;
/* write data to virtual channel */
rv = xrdpvr_write_to_client(channel, s);
stream_free(s);
return rv;
}
/**
* de-initialize the media player
*
* @param channel opaque handle returned by WTSVirtualChannelOpenEx
* @param stream_id unique identification number for this stream
*
* @return 0 on success, -1 on error
*****************************************************************************/
int
xrdpvr_deinit_player(void *channel, int stream_id)
{
STREAM *s;
char *cptr;
int rv;
int len;
if ((channel == NULL) || (stream_id <= 0))
{
return -1;
}
/* do local clean up */
if (g_psi.frame != 0)
{
av_free(g_psi.frame);
g_psi.frame = 0;
}
if (g_psi.p_audio_codec_ctx != 0)
{
avcodec_close(g_psi.p_audio_codec_ctx);
g_psi.p_audio_codec_ctx = 0;
}
if (g_psi.p_video_codec_ctx != 0)
{
avcodec_close(g_psi.p_video_codec_ctx);
g_psi.p_video_codec_ctx = 0;
}
//avformat_close_input(&g_psi.p_format_ctx);
if (g_psi.p_format_ctx != 0)
{
av_close_input_file(g_psi.p_format_ctx);
g_psi.p_format_ctx = 0;
}
/* do remote cleanup */
stream_new(s, MAX_PDU_SIZE);
stream_ins_u32_le(s, 0); /* number of bytes to follow */
stream_ins_u32_le(s, CMD_DEINIT_XRDPVR);
stream_ins_u32_le(s, stream_id);
/* insert number of bytes in stream */
len = stream_length(s) - 4;
cptr = s->p;
s->p = s->data;
stream_ins_u32_le(s, len);
s->p = cptr;
/* write data to virtual channel */
rv = xrdpvr_write_to_client(channel, s);
stream_free(s);
return 0;
}
/**
* set audio format
*
* @param channel opaque handle returned by WTSVirtualChannelOpenEx
* @param stream_id unique identification number for this stream
*
* @return 0 on success, -1 on error
*****************************************************************************/
int
xrdpvr_set_audio_format(void *channel, uint32_t stream_id, int format,
char *extradata, int extradata_size, int sample_rate,
int bit_rate, int channels, int block_align)
{
STREAM *s;
char *cptr;
int rv;
int len;
stream_new(s, MAX_PDU_SIZE);
printf("extradata_size %d sample_rate %d bit_rate %d channels %d "
"block_align %d\n", extradata_size, sample_rate, bit_rate,
channels, block_align);
stream_ins_u32_le(s, 0); /* number of bytes to follow */
stream_ins_u32_le(s, CMD_SET_AUDIO_FORMAT);
stream_ins_u32_le(s, stream_id);
stream_ins_u32_le(s, format);
stream_ins_u32_le(s, extradata_size);
memcpy(s->p, extradata, extradata_size);
s->p += extradata_size;
stream_ins_u32_le(s, sample_rate);
stream_ins_u32_le(s, bit_rate);
stream_ins_u32_le(s, channels);
stream_ins_u32_le(s, block_align);
/* insert number of bytes in stream */
len = stream_length(s) - 4;
cptr = s->p;
s->p = s->data;
stream_ins_u32_le(s, len);
s->p = cptr;
/* write data to virtual channel */
rv = xrdpvr_write_to_client(channel, s);
stream_free(s);
return rv;
}
/**
* send media meta-data to client
*
* @param channel opaque handle returned by WTSVirtualChannelOpenEx
* @param filename media file
*
* @return 0 on success, -1 on error
*****************************************************************************/
int
xrdpvr_create_metadata_file(void *channel, char *filename)
{
STREAM *s;
char *cptr;
int rv;
int len;
int fd;
if ((fd = open(filename , O_RDONLY)) < 0)
{
return -1;
}
stream_new(s, MAX_PDU_SIZE + 1048576);
/* send CMD_CREATE_META_DATA_FILE */
stream_ins_u32_le(s, 4); /* number of bytes to follow */
stream_ins_u32_le(s, CMD_CREATE_META_DATA_FILE);
if (xrdpvr_write_to_client(channel, s))
{
close(fd);
return -1;
}
/* read first 1MB of file and send to client */
s->p = s->data;
stream_ins_u32_le(s, 0); /* number of bytes to follow */
stream_ins_u32_le(s, CMD_WRITE_META_DATA);
stream_ins_u32_le(s, 0); /* number of bytes to follow */
if ((rv = read(fd, s->p, 1048576)) <= 0)
{
close(fd);
return -1;
}
s->p += rv;
/* insert number of bytes in stream */
len = stream_length(s) - 4;
cptr = s->p;
s->p = s->data;
stream_ins_u32_le(s, len); /* number of bytes in this cmd */
s->p += 4;
stream_ins_u32_le(s, rv); /* number of metadata bytes */
s->p = cptr;
/* write data to virtual channel */
rv = xrdpvr_write_to_client(channel, s);
/* send CMD_CLOSE_META_DATA_FILE */
s->p = s->data;
stream_ins_u32_le(s, 4); /* number of bytes to follow */
stream_ins_u32_le(s, CMD_CLOSE_META_DATA_FILE);
if (xrdpvr_write_to_client(channel, s))
{
close(fd);
return -1;
}
stream_free(s);
return rv;
}