GStreamerMediaDescription.cpp [plain text]
#include "config.h"
#include "GStreamerMediaDescription.h"
#include "GStreamerCommon.h"
#include <gst/pbutils/pbutils.h>
#include <wtf/text/AtomicString.h>
#include <wtf/text/WTFString.h>
#if ENABLE(VIDEO) && USE(GSTREAMER) && ENABLE(MEDIA_SOURCE)
namespace WebCore {
AtomicString GStreamerMediaDescription::codec() const
{
return m_codecName;
}
bool GStreamerMediaDescription::isVideo() const
{
return doCapsHaveType(m_caps.get(), GST_VIDEO_CAPS_TYPE_PREFIX);
}
bool GStreamerMediaDescription::isAudio() const
{
return doCapsHaveType(m_caps.get(), GST_AUDIO_CAPS_TYPE_PREFIX);
}
bool GStreamerMediaDescription::isText() const
{
return false;
}
AtomicString GStreamerMediaDescription::extractCodecName()
{
GRefPtr<GstCaps> originalCaps = m_caps;
if (areEncryptedCaps(originalCaps.get())) {
originalCaps = adoptGRef(gst_caps_copy(originalCaps.get()));
GstStructure* structure = gst_caps_get_structure(originalCaps.get(), 0);
if (!gst_structure_has_field(structure, "original-media-type"))
return AtomicString();
gst_structure_set_name(structure, gst_structure_get_string(structure, "original-media-type"));
for (int j = 0; j < gst_structure_n_fields(structure); ++j) {
const char* fieldName = gst_structure_nth_field_name(structure, j);
if (g_str_has_prefix(fieldName, "protection-system")
|| g_str_has_prefix(fieldName, "original-media-type"))
gst_structure_remove_field(structure, fieldName);
}
}
GUniquePtr<gchar> description(gst_pb_utils_get_codec_description(originalCaps.get()));
String codecName(description.get());
if (codecName.startsWith("H.264")) {
size_t braceStart = codecName.find(" (");
size_t braceEnd = codecName.find(")");
if (braceStart != notFound && braceEnd != notFound)
codecName.remove(braceStart, braceEnd - braceStart);
}
return codecName;
}
}
#endif // USE(GSTREAMER)