Esempi in C++ (Cpp) per gst_dshow_check_mediatype

Esempio n. 1

File: gstdshow.cpp Progetto: 0p1pp1/gst-plugins-bad

GstVideoFormat
gst_dshow_guid_to_gst_video_format (AM_MEDIA_TYPE *mediatype)
{
  if (gst_dshow_check_mediatype (mediatype, MEDIASUBTYPE_I420, FORMAT_VideoInfo))
    return GST_VIDEO_FORMAT_I420;

  if (gst_dshow_check_mediatype (mediatype, MEDIASUBTYPE_RGB24, FORMAT_VideoInfo))
    return GST_VIDEO_FORMAT_BGR;

  if (gst_dshow_check_mediatype (mediatype, MEDIASUBTYPE_YUY2, FORMAT_VideoInfo))
    return GST_VIDEO_FORMAT_YUY2;

  if (gst_dshow_check_mediatype (mediatype, MEDIASUBTYPE_UYVY, FORMAT_VideoInfo))
    return GST_VIDEO_FORMAT_UYVY;

  if (gst_dshow_check_mediatype (mediatype, MEDIASUBTYPE_RGB32, FORMAT_VideoInfo))
    return GST_VIDEO_FORMAT_BGRx;

  if (gst_dshow_check_mediatype (mediatype, MEDIASUBTYPE_RGB565, FORMAT_VideoInfo))
    return GST_VIDEO_FORMAT_BGR16;

  if (gst_dshow_check_mediatype (mediatype, MEDIASUBTYPE_RGB555, FORMAT_VideoInfo))
    return GST_VIDEO_FORMAT_BGR15;

  if (gst_dshow_check_mediatype (mediatype, MEDIASUBTYPE_RGB8, FORMAT_VideoInfo))
    return GST_VIDEO_FORMAT_GRAY8;

  return GST_VIDEO_FORMAT_UNKNOWN;
}

Esempio n. 2

File: gstdshow.cpp Progetto: collects/gst-plugins-bad

GstVideoFormat
gst_dshow_guid_to_gst_video_format (AM_MEDIA_TYPE *mediatype)
{
  if (gst_dshow_check_mediatype (mediatype, MEDIASUBTYPE_I420, FORMAT_VideoInfo))
    return GST_VIDEO_FORMAT_I420;

  if (gst_dshow_check_mediatype (mediatype, MEDIASUBTYPE_RGB24, FORMAT_VideoInfo))
    return GST_VIDEO_FORMAT_BGR;

  if (gst_dshow_check_mediatype (mediatype, MEDIASUBTYPE_YUY2, FORMAT_VideoInfo))
    return GST_VIDEO_FORMAT_YUY2;

  return GST_VIDEO_FORMAT_UNKNOWN;
}

Esempio n. 3

File: gstdshowvideosrc.cpp Progetto: hyperlobic/gst-plugins-bad

static GstCaps *
gst_dshowvideosrc_getcaps_from_enum_mediatypes (GstDshowVideoSrc * src, IPin * pin)
{
    GstCaps *caps = NULL;
    IEnumMediaTypes *enum_mediatypes = NULL;
    HRESULT hres = S_OK;
    GstCapturePinMediaType *pin_mediatype = NULL;

    hres = pin->EnumMediaTypes (&enum_mediatypes);
    if (FAILED (hres)) {
        GST_ERROR ("Failed to retrieve IEnumMediaTypes (error=0x%x)", hres);
        return NULL;
    }

    caps = gst_caps_new_empty ();

    while ((pin_mediatype = gst_dshow_new_pin_mediatype_from_enum_mediatypes (pin, enum_mediatypes)) != NULL) {

        GstCaps *mediacaps = NULL;
        GstVideoFormat video_format = gst_dshow_guid_to_gst_video_format (pin_mediatype->mediatype);
        GstVideoInfo info;

        gst_video_info_init(&info);
        gst_video_info_set_format(&info, video_format, pin_mediatype->defaultWidth, pin_mediatype->defaultHeight);
        info.fps_n = pin_mediatype->defaultFPS;
        info.fps_d = 1;
        info.par_n = 1;
        info.par_d = 1;

        if(video_format == GST_VIDEO_FORMAT_ENCODED) {
            if(gst_dshow_check_mediatype(pin_mediatype->mediatype, MEDIASUBTYPE_MJPG, FORMAT_VideoInfo)) {
                mediacaps = gst_caps_new_simple("image/jpeg", "width", G_TYPE_INT, info.width,
                                                "height", G_TYPE_INT, info.height,
                                                "framerate", GST_TYPE_FRACTION, info.fps_n, info.fps_d);
            }
        }
        else if (video_format != GST_VIDEO_FORMAT_UNKNOWN)
            mediacaps = gst_video_info_to_caps (&info);

        if (mediacaps) {
            src->pins_mediatypes =
                g_list_append (src->pins_mediatypes, pin_mediatype);
            gst_caps_append (caps, mediacaps);
        } else {
            /* failed to convert dshow caps */
            gst_dshow_free_pin_mediatype (pin_mediatype);
        }
    }

    enum_mediatypes->Release ();

    if (caps && gst_caps_is_empty (caps)) {
        gst_caps_unref (caps);
        caps = NULL;
    }

    return caps;
}

Esempio n. 4

File: gstdshowaudiosrc.cpp Progetto: lubing521/gst-embedded-builder

static GstCaps *
gst_dshowaudiosrc_getcaps_from_streamcaps (GstDshowAudioSrc * src, IPin * pin,
    IAMStreamConfig * streamcaps)
{
  GstCaps *caps = NULL;
  HRESULT hres = S_OK;
  int icount = 0;
  int isize = 0;
  AUDIO_STREAM_CONFIG_CAPS ascc;
  int i = 0;

  if (!streamcaps)
    return NULL;

  streamcaps->GetNumberOfCapabilities (&icount, &isize);

  if (isize != sizeof (ascc))
    return NULL;

  for (; i < icount; i++) {
    GstCapturePinMediaType *pin_mediatype = g_new0 (GstCapturePinMediaType, 1);

    pin->AddRef ();
    pin_mediatype->capture_pin = pin;

    hres = streamcaps->GetStreamCaps (i, &pin_mediatype->mediatype,
        (BYTE *) & ascc);
    if (hres == S_OK && pin_mediatype->mediatype) {
      GstCaps *mediacaps = NULL;

      if (!caps)
        caps = gst_caps_new_empty ();

      if (gst_dshow_check_mediatype (pin_mediatype->mediatype, MEDIASUBTYPE_PCM,
              FORMAT_WaveFormatEx)) {
        WAVEFORMATEX *wavformat =
            (WAVEFORMATEX *) pin_mediatype->mediatype->pbFormat;
        mediacaps =
            gst_caps_new_simple ("audio/x-raw-int", "width", G_TYPE_INT,
            wavformat->wBitsPerSample, "depth", G_TYPE_INT,
            wavformat->wBitsPerSample, "endianness", G_TYPE_INT, G_BYTE_ORDER,
            "signed", G_TYPE_BOOLEAN, TRUE, "channels", G_TYPE_INT,
            wavformat->nChannels, "rate", G_TYPE_INT, wavformat->nSamplesPerSec,
            NULL);

        if (mediacaps) {
          src->pins_mediatypes =
              g_list_append (src->pins_mediatypes, pin_mediatype);
          gst_caps_append (caps, mediacaps);
        } else {
          gst_dshow_free_pin_mediatype (pin_mediatype);
        }
      } else {
        gst_dshow_free_pin_mediatype (pin_mediatype);
      }
    } else {
      gst_dshow_free_pin_mediatype (pin_mediatype);
    }
  }

  if (caps && gst_caps_is_empty (caps)) {
    gst_caps_unref (caps);
    caps = NULL;
  }

  return caps;
}

Esempio n. 5

File: gstdshowvideosrc.cpp Progetto: hyperlobic/gst-plugins-bad

static GstCaps *
gst_dshowvideosrc_getcaps_from_streamcaps (GstDshowVideoSrc * src, IPin * pin)
{
    GstCaps *caps = NULL;
    HRESULT hres = S_OK;
    int icount = 0;
    int isize = 0;
    VIDEO_STREAM_CONFIG_CAPS vscc;
    int i = 0;
    IAMStreamConfig *streamcaps = NULL;

    hres = pin->QueryInterface (IID_IAMStreamConfig, (LPVOID *) & streamcaps);
    if (FAILED (hres)) {
        GST_ERROR ("Failed to retrieve IAMStreamConfig (error=0x%x)", hres);
        return NULL;
    }

    streamcaps->GetNumberOfCapabilities (&icount, &isize);

    if (isize != sizeof (vscc)) {
        streamcaps->Release ();
        return NULL;
    }

    caps = gst_caps_new_empty ();

    for (i = 0; i < icount; i++) {

        GstCapturePinMediaType *pin_mediatype =
            gst_dshow_new_pin_mediatype_from_streamcaps (pin, i, streamcaps);

        if (pin_mediatype) {

            GstCaps *mediacaps = NULL;
            GstVideoFormat video_format =
                gst_dshow_guid_to_gst_video_format (pin_mediatype->mediatype);

            if (video_format != GST_VIDEO_FORMAT_UNKNOWN) {
                mediacaps = gst_dshow_new_video_caps (video_format, NULL,
                                                      pin_mediatype);

            } else if (gst_dshow_check_mediatype (pin_mediatype->mediatype,
                                                  MEDIASUBTYPE_dvsd, FORMAT_VideoInfo)) {
                mediacaps =
                    gst_dshow_new_video_caps (GST_VIDEO_FORMAT_UNKNOWN,
                                              "video/x-dv, systemstream=FALSE", pin_mediatype);

            } else if (gst_dshow_check_mediatype (pin_mediatype->mediatype,
                                                  MEDIASUBTYPE_dvsd, FORMAT_DvInfo)) {
                mediacaps =
                    gst_dshow_new_video_caps (GST_VIDEO_FORMAT_UNKNOWN,
                                              "video/x-dv, systemstream=TRUE", pin_mediatype);

                pin_mediatype->granularityWidth = 0;
                pin_mediatype->granularityHeight = 0;
            } else if(gst_dshow_check_mediatype(pin_mediatype->mediatype,
                                                MEDIASUBTYPE_MJPG, FORMAT_VideoInfo)) {
                mediacaps = gst_dshow_new_video_caps(GST_VIDEO_FORMAT_UNKNOWN,
                                                     "image/jpeg", pin_mediatype);
            }


            if (mediacaps) {
                src->pins_mediatypes =
                    g_list_append (src->pins_mediatypes, pin_mediatype);
                gst_caps_append (caps, mediacaps);
            } else {
                /* failed to convert dshow caps */
                gst_dshow_free_pin_mediatype (pin_mediatype);
            }
        }
    }

    streamcaps->Release ();

    if (caps && gst_caps_is_empty (caps)) {
        gst_caps_unref (caps);
        caps = NULL;
    }

    return caps;
}

Esempio n. 6

File: gstdshowaudiosrc.cpp Progetto: 0p1pp1/gst-plugins-bad

static GstCaps *
gst_dshowaudiosrc_getcaps_from_streamcaps (GstDshowAudioSrc * src, IPin * pin,
    IAMStreamConfig * streamcaps)
{
  GstCaps *caps = NULL;
  HRESULT hres = S_OK;
  int icount = 0;
  int isize = 0;
  AUDIO_STREAM_CONFIG_CAPS ascc;
  int i = 0;

  if (!streamcaps)
    return NULL;

  streamcaps->GetNumberOfCapabilities (&icount, &isize);

  if (isize != sizeof (ascc))
    return NULL;

  for (; i < icount; i++) {
    GstCapturePinMediaType *pin_mediatype = g_new0 (GstCapturePinMediaType, 1);

    pin->AddRef ();
    pin_mediatype->capture_pin = pin;

    hres = streamcaps->GetStreamCaps (i, &pin_mediatype->mediatype,
        (BYTE *) & ascc);
    if (hres == S_OK && pin_mediatype->mediatype) {
      GstCaps *mediacaps = NULL;

      if (!caps)
        caps = gst_caps_new_empty ();

      if (gst_dshow_check_mediatype (pin_mediatype->mediatype, MEDIASUBTYPE_PCM,
              FORMAT_WaveFormatEx)) {
	GstAudioFormat format = GST_AUDIO_FORMAT_UNKNOWN;
        WAVEFORMATEX *wavformat =
            (WAVEFORMATEX *) pin_mediatype->mediatype->pbFormat;

	switch (wavformat->wFormatTag) {
            case WAVE_FORMAT_PCM:
	      format = gst_audio_format_build_integer (TRUE, G_BYTE_ORDER, wavformat->wBitsPerSample, wavformat->wBitsPerSample);
	      break;
            default:
	      break;
	}

	if (format != GST_AUDIO_FORMAT_UNKNOWN) {
	  GstAudioInfo info;

	  gst_audio_info_init(&info);
	  gst_audio_info_set_format(&info,
				    format,
				    wavformat->nSamplesPerSec,
				    wavformat->nChannels,
				    NULL);
	  mediacaps = gst_audio_info_to_caps(&info);
	}

        if (mediacaps) {
          src->pins_mediatypes =
              g_list_append (src->pins_mediatypes, pin_mediatype);
          gst_caps_append (caps, mediacaps);
        } else {
          gst_dshow_free_pin_mediatype (pin_mediatype);
        }
      } else {
        gst_dshow_free_pin_mediatype (pin_mediatype);
      }
    } else {
      gst_dshow_free_pin_mediatype (pin_mediatype);
    }
  }

  if (caps && gst_caps_is_empty (caps)) {
    gst_caps_unref (caps);
    caps = NULL;
  }

  return caps;
}