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qtdemux: Minor refactor of the code

Browse source 
This will make it easier to clump together common code when copying to
mastroskademux.

https://bugzilla.gnome.org/show_bug.cgi?id=614651
This commit is contained in:
Arun Raghavan 2010-04-01 18:38:38 +05:30 committed by Sebastian Dröge
parent d6dcd70b4c
commit ccef64be39
1 changed files with 31 additions and 25 deletions
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56
gst/qtdemux/qtdemux.c
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@ -5014,7 +5014,7 @@ qtdemux_get_rtsp_uri_from_hndl (GstQTDemux * qtdemux, GNode * minf)
}
static gchar *
avc_profile_idc_to_string (gint profile_idc, gint constraint_set_flags)
avc_profile_idc_to_string (guint profile_idc, guint constraint_set_flags)
{
const gchar *profile = NULL;
gint csf1, csf3;
@ -5067,7 +5067,7 @@ avc_profile_idc_to_string (gint profile_idc, gint constraint_set_flags)
}
static gchar *
avc_level_idc_to_string (gint level_idc, gint constraint_set_flags)
avc_level_idc_to_string (guint level_idc, guint constraint_set_flags)
{
const gchar *level = NULL;
gchar buf[4];
@ -5080,9 +5080,9 @@ avc_level_idc_to_string (gint level_idc, gint constraint_set_flags)
else {
/* Level is (level_idc / 10) */
if (level_idc % 10 == 0)
g_sprintf (buf, "%d", level_idc / 10);
g_sprintf (buf, "%u", level_idc / 10);
else
g_sprintf (buf, "%d.%d", level_idc / 10, level_idc % 10);
g_sprintf (buf, "%u.%u", level_idc / 10, level_idc % 10);
level = buf;
}
@ -5090,6 +5090,22 @@ avc_level_idc_to_string (gint level_idc, gint constraint_set_flags)
return g_strdup (level);
}
static void
avc_get_profile_and_level_string (const guint8 * avc_data, gint size,
gchar ** profile, gchar ** level)
{
if (size >= 2)
/* First byte is the version, second is the profile indication,
* and third is the 5 contraint_set_flags and 3 reserved bits */
*profile = avc_profile_idc_to_string (QT_UINT8 (avc_data + 1),
QT_UINT8 (avc_data + 2));
if (size >= 4)
/* Fourth byte is the level indication */
*level = avc_level_idc_to_string (QT_UINT8 (avc_data + 3),
QT_UINT8 (avc_data + 2));
}
/* parse the traks.
* With each track we associate a new QtDemuxStream that contains all the info
* about the trak.
@ -5333,34 +5349,24 @@ qtdemux_parse_trak (GstQTDemux * qtdemux, GNode * trak)
if (len > 0x8 && QT_FOURCC (avc_data + 0x4) == FOURCC_avcC) {
GstBuffer *buf;
gint size;
gchar *profile, *level;
gchar *profile = NULL, *level = NULL;
if (QT_UINT32 (avc_data) < len)
size = QT_UINT32 (avc_data) - 0x8;
else
size = len - 0x8;
if (size >= 3) {
/* First byte is the version, second is the profile indication,
* and third is the 5 contraint_set_flags and 3 reserved bits */
profile = avc_profile_idc_to_string (QT_UINT8 (avc_data + 0x9),
QT_UINT8 (avc_data + 0xA));
if (profile) {
gst_caps_set_simple (stream->caps, "profile", G_TYPE_STRING,
profile, NULL);
g_free (profile);
}
avc_get_profile_and_level_string (avc_data + 0x8, size, &profile,
&level);
if (profile) {
gst_caps_set_simple (stream->caps, "profile", G_TYPE_STRING,
profile, NULL);
g_free (profile);
}
if (size >= 4) {
/* Fourth byte is the level indication */
level = avc_level_idc_to_string (QT_UINT8 (avc_data + 0xB),
QT_UINT8 (avc_data + 0xA));
if (level) {
gst_caps_set_simple (stream->caps, "level", G_TYPE_STRING,
level, NULL);
g_free (level);
}
if (level) {
gst_caps_set_simple (stream->caps, "level", G_TYPE_STRING,
level, NULL);
g_free (level);
}
GST_DEBUG_OBJECT (qtdemux, "found avcC codec_data in stsd");