shadow_rdpsnd.c

 
#include <freerdp/config.h>
 
#include <winpr/crt.h>
#include <winpr/assert.h>
#include <winpr/cast.h>
 
#include <freerdp/log.h>
#include <freerdp/codec/dsp.h>
#include <freerdp/server/server-common.h>
 
#include "shadow.h"
 
#include "shadow_rdpsnd.h"
 
#define TAG SERVER_TAG("shadow")
 
static void rdpsnd_activated(RdpsndServerContext* context)
{
  WINPR_ASSERT(context);
  for (size_t i = 0; i < context->num_client_formats; i++)
  {
    for (size_t j = 0; j < context->num_server_formats; j++)
    {
      if (audio_format_compatible(&context->server_formats[j], &context->client_formats[i]))
      {
        const UINT rc = context->SelectFormat(context, WINPR_ASSERTING_INT_CAST(UINT16, i));
        if (rc != CHANNEL_RC_OK)
          WLog_WARN(TAG, "SelectFormat failed with %" PRIu32, rc);
        return;
      }
    }
  }
 
  WLog_ERR(TAG, "Could not agree on a audio format with the server\n");
}
 
int shadow_client_rdpsnd_init(rdpShadowClient* client)
{
  WINPR_ASSERT(client);
  RdpsndServerContext* rdpsnd = client->rdpsnd = rdpsnd_server_context_new(client->vcm);
 
  if (!rdpsnd)
  {
    return 0;
  }
 
  rdpsnd->data = client;
 
  if (client->subsystem->rdpsndFormats)
  {
    /* rdpsnd_server_context_free() frees the list: each client gets its own
     * copy (shadow_client_rdpsnd_uninit() cleans up after a failure here) */
    const size_t count = client->subsystem->nRdpsndFormats;
    rdpsnd->server_formats = audio_formats_new(count);
    if (!rdpsnd->server_formats)
      return -1;
 
    for (size_t x = 0; x < count; x++)
    {
      if (!audio_format_copy(&client->subsystem->rdpsndFormats[x],
                             &rdpsnd->server_formats[x]))
        return -1;
    }
    rdpsnd->num_server_formats = count;
  }
  else
  {
    rdpsnd->num_server_formats = server_rdpsnd_get_formats(&rdpsnd->server_formats);
  }
 
  if (rdpsnd->num_server_formats > 0)
    rdpsnd->src_format = &rdpsnd->server_formats[0];
 
  rdpsnd->Activated = rdpsnd_activated;
 
  const UINT error = rdpsnd->Initialize(rdpsnd, TRUE);
  if (error != CHANNEL_RC_OK)
    return -1;
  return 1;
}
 
void shadow_client_rdpsnd_uninit(rdpShadowClient* client)
{
  WINPR_ASSERT(client);
  if (client->rdpsnd)
  {
    client->rdpsnd->Stop(client->rdpsnd);
    rdpsnd_server_context_free(client->rdpsnd);
    client->rdpsnd = nullptr;
  }
}