コード例 #1
0
static gboolean
gst_freeverb_set_process_function (GstFreeverb * filter, GstAudioInfo * info)
{
    gint channel_index, format_index;
    const GstAudioFormatInfo *finfo = info->finfo;

    /* set processing function */
    channel_index = GST_AUDIO_INFO_CHANNELS (info) - 1;
    if (channel_index > 1 || channel_index < 0) {
        filter->process = NULL;
        return FALSE;
    }

    format_index = GST_AUDIO_FORMAT_INFO_IS_FLOAT (finfo) ? 1 : 0;

    filter->process = process_functions[channel_index][format_index];
    return TRUE;
}
コード例 #2
0
static gboolean
gst_audio_panorama_set_process_function (GstAudioPanorama * filter,
    GstAudioInfo * info)
{
  gint channel_index, format_index, method_index;
  const GstAudioFormatInfo *finfo = info->finfo;

  /* set processing function */
  channel_index = GST_AUDIO_INFO_CHANNELS (info) - 1;
  if (channel_index > 1 || channel_index < 0) {
    filter->process = NULL;
    return FALSE;
  }

  format_index = GST_AUDIO_FORMAT_INFO_IS_FLOAT (finfo) ? 1 : 0;

  method_index = filter->method;
  if (method_index >= NUM_METHODS || method_index < 0)
    method_index = METHOD_PSYCHOACOUSTIC;

  filter->process =
      panorama_process_functions[channel_index][format_index][method_index];
  return TRUE;
}
コード例 #3
0
/* returns static descriptions and dynamic ones (such as video/x-raw),
 * or NULL if caps aren't known at all */
static gchar *
format_info_get_desc (const FormatInfo * info, const GstCaps * caps)
{
  const GstStructure *s;

  g_assert (info != NULL);

  if (info->desc != NULL)
    return g_strdup (_(info->desc));

  s = gst_caps_get_structure (caps, 0);

  if (strcmp (info->type, "video/x-raw") == 0) {
    gchar *ret = NULL;
    const gchar *str = 0;
    GstVideoFormat format;
    const GstVideoFormatInfo *finfo;

    str = gst_structure_get_string (s, "format");
    if (str == NULL)
      return g_strdup (_("Uncompressed video"));
    format = gst_video_format_from_string (str);
    if (format == GST_VIDEO_FORMAT_UNKNOWN)
      return g_strdup (_("Uncompressed video"));

    finfo = gst_video_format_get_info (format);

    if (GST_VIDEO_FORMAT_INFO_IS_GRAY (finfo)) {
      ret = g_strdup (_("Uncompressed gray"));
    } else if (GST_VIDEO_FORMAT_INFO_IS_YUV (finfo)) {
      const gchar *subs;
      gint w_sub, h_sub, n_semi;

      w_sub = GST_VIDEO_FORMAT_INFO_W_SUB (finfo, 1);
      h_sub = GST_VIDEO_FORMAT_INFO_H_SUB (finfo, 1);

      if (w_sub == 1 && h_sub == 1) {
        subs = "4:4:4";
      } else if (w_sub == 2 && h_sub == 1) {
        subs = "4:2:2";
      } else if (w_sub == 2 && h_sub == 2) {
        subs = "4:2:0";
      } else if (w_sub == 4 && h_sub == 1) {
        subs = "4:1:1";
      } else {
        subs = "";
      }

      n_semi = GST_VIDEO_FORMAT_INFO_HAS_ALPHA (finfo) ? 3 : 2;

      if (GST_VIDEO_FORMAT_INFO_N_PLANES (finfo) == 1) {
        ret = g_strdup_printf (_("Uncompressed packed YUV %s"), subs);
      } else if (GST_VIDEO_FORMAT_INFO_N_PLANES (finfo) == n_semi) {
        ret = g_strdup_printf (_("Uncompressed semi-planar YUV %s"), subs);
      } else {
        ret = g_strdup_printf (_("Uncompressed planar YUV %s"), subs);
      }
    } else if (GST_VIDEO_FORMAT_INFO_IS_RGB (finfo)) {
      gboolean alpha, palette;
      gint bits;

      alpha = GST_VIDEO_FORMAT_INFO_HAS_ALPHA (finfo);
      palette = GST_VIDEO_FORMAT_INFO_HAS_PALETTE (finfo);
      bits = GST_VIDEO_FORMAT_INFO_BITS (finfo);

      if (palette) {
        ret = g_strdup_printf (_("Uncompressed palettized %d-bit %s"),
            bits, alpha ? "RGBA" : "RGB");
      } else {
        ret = g_strdup_printf (_("Uncompressed %d-bit %s"),
            bits, alpha ? "RGBA" : "RGB");
      }
    } else {
      ret = g_strdup (_("Uncompressed video"));
    }
    return ret;
  } else if (strcmp (info->type, "video/x-h263") == 0) {
    const gchar *variant, *ret;

    variant = gst_structure_get_string (s, "variant");
    if (variant == NULL)
      ret = "H.263";
    else if (strcmp (variant, "itu") == 0)
      ret = "ITU H.26n";        /* why not ITU H.263? (tpm) */
    else if (strcmp (variant, "lead") == 0)
      ret = "Lead H.263";
    else if (strcmp (variant, "microsoft") == 0)
      ret = "Microsoft H.263";
    else if (strcmp (variant, "vdolive") == 0)
      ret = "VDOLive";
    else if (strcmp (variant, "vivo") == 0)
      ret = "Vivo H.263";
    else if (strcmp (variant, "xirlink") == 0)
      ret = "Xirlink H.263";
    else {
      GST_WARNING ("Unknown H263 variant '%s'", variant);
      ret = "H.263";
    }
    return g_strdup (ret);
  } else if (strcmp (info->type, "video/x-h264") == 0) {
    const gchar *variant, *ret;
    const gchar *profile;

    variant = gst_structure_get_string (s, "variant");
    if (variant == NULL)
      ret = "H.264";
    else if (strcmp (variant, "itu") == 0)
      ret = "ITU H.264";
    else if (strcmp (variant, "videosoft") == 0)
      ret = "Videosoft H.264";
    else if (strcmp (variant, "lead") == 0)
      ret = "Lead H.264";
    else {
      GST_WARNING ("Unknown H264 variant '%s'", variant);
      ret = "H.264";
    }
    /* profile */
    profile = gst_structure_get_string (s, "profile");
    if (profile != NULL)
      profile = pbutils_desc_get_h264_profile_name_from_nick (profile);
    if (profile == NULL)
      return g_strdup (ret);
    return g_strdup_printf ("%s (%s Profile)", ret, profile);
  } else if (strcmp (info->type, "video/x-h265") == 0) {
    const gchar *profile = gst_structure_get_string (s, "profile");

    if (profile != NULL)
      profile = pbutils_desc_get_h265_profile_name_from_nick (profile);
    if (profile != NULL)
      return g_strdup_printf ("H.265 (%s Profile)", profile);

    return g_strdup ("H.265");
  } else if (strcmp (info->type, "video/x-dirac") == 0) {
    const gchar *profile = gst_structure_get_string (s, "profile");
    if (profile == NULL)
      return g_strdup ("Dirac");
    if (strcmp (profile, "vc2-low-delay") == 0)
      return g_strdup_printf ("Dirac (%s)", "VC-2 Low Delay Profile");
    else if (strcmp (profile, "vc2-simple") == 0)
      return g_strdup_printf ("Dirac (%s)", "VC-2 Simple Profile");
    else if (strcmp (profile, "vc2-main") == 0)
      return g_strdup_printf ("Dirac (%s)", "VC-2 Main Profile");
    else
      return g_strdup ("Dirac");
  } else if (strcmp (info->type, "video/x-divx") == 0) {
    gint ver = 0;

    if (!gst_structure_get_int (s, "divxversion", &ver) || ver <= 2) {
      GST_WARNING ("Unexpected DivX version in %" GST_PTR_FORMAT, caps);
      return g_strdup ("DivX MPEG-4");
    }
    return g_strdup_printf (_("DivX MPEG-4 Version %d"), ver);
  } else if (strcmp (info->type, "video/x-msmpeg") == 0) {
    gint ver = 0;

    if (!gst_structure_get_int (s, "msmpegversion", &ver) ||
        ver < 40 || ver > 49) {
      GST_WARNING ("Unexpected msmpegversion in %" GST_PTR_FORMAT, caps);
      return g_strdup ("Microsoft MPEG-4 4.x");
    }
    return g_strdup_printf ("Microsoft MPEG-4 4.%d", ver % 10);
  } else if (strcmp (info->type, "video/x-truemotion") == 0) {
    gint ver = 0;

    gst_structure_get_int (s, "trueversion", &ver);
    switch (ver) {
      case 1:
        return g_strdup_printf ("Duck TrueMotion 1");
      case 2:
        return g_strdup_printf ("TrueMotion 2.0");
      default:
        GST_WARNING ("Unexpected trueversion in %" GST_PTR_FORMAT, caps);
        break;
    }
    return g_strdup_printf ("TrueMotion");
  } else if (strcmp (info->type, "video/x-xan") == 0) {
    gint ver = 0;

    if (!gst_structure_get_int (s, "wcversion", &ver) || ver < 1) {
      GST_WARNING ("Unexpected wcversion in %" GST_PTR_FORMAT, caps);
      return g_strdup ("Xan Wing Commander");
    }
    return g_strdup_printf ("Xan Wing Commander %u", ver);
  } else if (strcmp (info->type, "video/x-indeo") == 0) {
    gint ver = 0;

    if (!gst_structure_get_int (s, "indeoversion", &ver) || ver < 2) {
      GST_WARNING ("Unexpected indeoversion in %" GST_PTR_FORMAT, caps);
      return g_strdup ("Intel Indeo");
    }
    return g_strdup_printf ("Intel Indeo %u", ver);
  } else if (strcmp (info->type, "audio/x-wma") == 0) {
    gint ver = 0;

    gst_structure_get_int (s, "wmaversion", &ver);
    switch (ver) {
      case 1:
      case 2:
      case 3:
        return g_strdup_printf ("Windows Media Audio %d", ver + 6);
      default:
        break;
    }
    GST_WARNING ("Unexpected wmaversion in %" GST_PTR_FORMAT, caps);
    return g_strdup ("Windows Media Audio");
  } else if (strcmp (info->type, "video/x-wmv") == 0) {
    gint ver = 0;
    const gchar *str;

    gst_structure_get_int (s, "wmvversion", &ver);
    str = gst_structure_get_string (s, "format");

    switch (ver) {
      case 1:
      case 2:
      case 3:
        if (str && strncmp (str, "MSS", 3)) {
          return g_strdup_printf ("Windows Media Video %d Screen", ver + 6);
        } else {
          return g_strdup_printf ("Windows Media Video %d", ver + 6);
        }
      default:
        break;
    }
    GST_WARNING ("Unexpected wmvversion in %" GST_PTR_FORMAT, caps);
    return g_strdup ("Windows Media Video");
  } else if (strcmp (info->type, "audio/x-mace") == 0) {
    gint ver = 0;

    gst_structure_get_int (s, "maceversion", &ver);
    if (ver == 3 || ver == 6) {
      return g_strdup_printf ("MACE-%d", ver);
    } else {
      GST_WARNING ("Unexpected maceversion in %" GST_PTR_FORMAT, caps);
      return g_strdup ("MACE");
    }
  } else if (strcmp (info->type, "video/x-svq") == 0) {
    gint ver = 0;

    gst_structure_get_int (s, "svqversion", &ver);
    if (ver == 1 || ver == 3) {
      return g_strdup_printf ("Sorensen Video %d", ver);
    } else {
      GST_WARNING ("Unexpected svqversion in %" GST_PTR_FORMAT, caps);
      return g_strdup ("Sorensen Video");
    }
  } else if (strcmp (info->type, "video/x-asus") == 0) {
    gint ver = 0;

    gst_structure_get_int (s, "asusversion", &ver);
    if (ver == 1 || ver == 2) {
      return g_strdup_printf ("Asus Video %d", ver);
    } else {
      GST_WARNING ("Unexpected asusversion in %" GST_PTR_FORMAT, caps);
      return g_strdup ("Asus Video");
    }
  } else if (strcmp (info->type, "video/x-ati-vcr") == 0) {
    gint ver = 0;

    gst_structure_get_int (s, "vcrversion", &ver);
    if (ver == 1 || ver == 2) {
      return g_strdup_printf ("ATI VCR %d", ver);
    } else {
      GST_WARNING ("Unexpected acrversion in %" GST_PTR_FORMAT, caps);
      return g_strdup ("ATI VCR");
    }
  } else if (strcmp (info->type, "audio/x-adpcm") == 0) {
    const GValue *layout_val;

    layout_val = gst_structure_get_value (s, "layout");
    if (layout_val != NULL && G_VALUE_HOLDS_STRING (layout_val)) {
      const gchar *layout;

      if ((layout = g_value_get_string (layout_val))) {
        gchar *layout_upper, *ret;

        if (strcmp (layout, "swf") == 0)
          return g_strdup ("Shockwave ADPCM");
        if (strcmp (layout, "microsoft") == 0)
          return g_strdup ("Microsoft ADPCM");
        if (strcmp (layout, "quicktime") == 0)
          return g_strdup ("Quicktime ADPCM");
        if (strcmp (layout, "westwood") == 0)
          return g_strdup ("Westwood ADPCM");
        if (strcmp (layout, "yamaha") == 0)
          return g_strdup ("Yamaha ADPCM");
        /* FIXME: other layouts: sbpro2, sbpro3, sbpro4, ct, g726, ea,
         * adx, xa, 4xm, smjpeg, dk4, dk3, dvi */
        layout_upper = g_ascii_strup (layout, -1);
        ret = g_strdup_printf ("%s ADPCM", layout_upper);
        g_free (layout_upper);
        return ret;
      }
    }
    return g_strdup ("ADPCM");
  } else if (strcmp (info->type, "audio/mpeg") == 0) {
    gint ver = 0, layer = 0;

    gst_structure_get_int (s, "mpegversion", &ver);

    switch (ver) {
      case 1:
        gst_structure_get_int (s, "layer", &layer);
        switch (layer) {
          case 1:
          case 2:
          case 3:
            return g_strdup_printf ("MPEG-1 Layer %d (MP%d)", layer, layer);
          default:
            break;
        }
        GST_WARNING ("Unexpected MPEG-1 layer in %" GST_PTR_FORMAT, caps);
        return g_strdup ("MPEG-1 Audio");
      case 2:
        return g_strdup ("MPEG-2 AAC");
      case 4:
        return g_strdup ("MPEG-4 AAC");
      default:
        break;
    }
    GST_WARNING ("Unexpected audio mpegversion in %" GST_PTR_FORMAT, caps);
    return g_strdup ("MPEG Audio");
  } else if (strcmp (info->type, "audio/x-pn-realaudio") == 0) {
    gint ver = 0;

    gst_structure_get_int (s, "raversion", &ver);
    switch (ver) {
      case 1:
        return g_strdup ("RealAudio 14k4bps");
      case 2:
        return g_strdup ("RealAudio 28k8bps");
      case 8:
        return g_strdup ("RealAudio G2 (Cook)");
      default:
        break;
    }
    GST_WARNING ("Unexpected raversion in %" GST_PTR_FORMAT, caps);
    return g_strdup ("RealAudio");
  } else if (strcmp (info->type, "video/x-pn-realvideo") == 0) {
    gint ver = 0;

    gst_structure_get_int (s, "rmversion", &ver);
    switch (ver) {
      case 1:
        return g_strdup ("RealVideo 1.0");
      case 2:
        return g_strdup ("RealVideo 2.0");
      case 3:
        return g_strdup ("RealVideo 3.0");
      case 4:
        return g_strdup ("RealVideo 4.0");
      default:
        break;
    }
    GST_WARNING ("Unexpected rmversion in %" GST_PTR_FORMAT, caps);
    return g_strdup ("RealVideo");
  } else if (strcmp (info->type, "video/mpeg") == 0) {
    gboolean sysstream;
    gint ver = 0;

    if (!gst_structure_get_boolean (s, "systemstream", &sysstream)) {
      GST_WARNING ("Missing systemstream field in mpeg video caps "
          "%" GST_PTR_FORMAT, caps);
      sysstream = FALSE;
    }

    if (gst_structure_get_int (s, "mpegversion", &ver) && ver > 0 && ver <= 4) {
      if (sysstream) {
        return g_strdup_printf ("MPEG-%d System Stream", ver);
      } else {
        const gchar *profile = gst_structure_get_string (s, "profile");
        if (profile != NULL) {
          if (ver == 4)
            profile = pbutils_desc_get_mpeg4v_profile_name_from_nick (profile);
          else if (ver == 2)
            profile = pbutils_desc_get_mpeg2v_profile_name_from_nick (profile);
          else
            profile = NULL;
        }
        if (profile != NULL)
          return g_strdup_printf ("MPEG-%d Video (%s Profile)", ver, profile);
        else
          return g_strdup_printf ("MPEG-%d Video", ver);
      }
    }
    GST_WARNING ("Missing mpegversion field in mpeg video caps "
        "%" GST_PTR_FORMAT, caps);
    return g_strdup ("MPEG Video");
  } else if (strcmp (info->type, "audio/x-raw") == 0) {
    gint depth = 0;
    gboolean is_float;
    const gchar *str;
    GstAudioFormat format;
    const GstAudioFormatInfo *finfo;

    str = gst_structure_get_string (s, "format");
    format = gst_audio_format_from_string (str);
    if (format == GST_AUDIO_FORMAT_UNKNOWN)
      return g_strdup (_("Uncompressed audio"));

    finfo = gst_audio_format_get_info (format);
    depth = GST_AUDIO_FORMAT_INFO_DEPTH (finfo);
    is_float = GST_AUDIO_FORMAT_INFO_IS_FLOAT (finfo);

    return g_strdup_printf (_("Raw %d-bit %s audio"), depth,
        is_float ? "floating-point" : "PCM");
  } else if (strcmp (info->type, "video/x-tscc") == 0) {
    gint version;
    gst_structure_get_int (s, "tsccversion", &version);
    switch (version) {
      case 1:
        return g_strdup ("TechSmith Screen Capture 1");
      case 2:
        return g_strdup ("TechSmith Screen Capture 2");
      default:
        break;
    }
    GST_WARNING ("Unexpected version in %" GST_PTR_FORMAT, caps);
    return g_strdup ("TechSmith Screen Capture");
  }
  return NULL;
}