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riff: Port to the new multichannel caps

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This commit is contained in:
Sebastian Dröge 2011-12-20 16:55:34 +01:00
parent 7e022b21b6
commit ee80a97a2a
1 changed files with 34 additions and 26 deletions
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60
gst-libs/gst/riff/riff-media.c
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@ -944,7 +944,7 @@ static const struct
0x00001, GST_AUDIO_CHANNEL_POSITION_FRONT_LEFT}, {
0x00002, GST_AUDIO_CHANNEL_POSITION_FRONT_RIGHT}, {
0x00004, GST_AUDIO_CHANNEL_POSITION_FRONT_CENTER}, {
0x00008, GST_AUDIO_CHANNEL_POSITION_LFE}, {
0x00008, GST_AUDIO_CHANNEL_POSITION_LFE1}, {
0x00010, GST_AUDIO_CHANNEL_POSITION_REAR_LEFT}, {
0x00020, GST_AUDIO_CHANNEL_POSITION_REAR_RIGHT}, {
0x00040, GST_AUDIO_CHANNEL_POSITION_FRONT_LEFT_OF_CENTER}, {
@ -964,20 +964,17 @@ static const struct
#define MAX_CHANNEL_POSITIONS G_N_ELEMENTS (layout_mapping)
static gboolean
gst_riff_wavext_add_channel_layout (GstCaps * caps, guint32 layout)
gst_riff_wavext_add_channel_mask (GstCaps * caps, guint32 layout)
{
GstAudioChannelPosition pos[MAX_CHANNEL_POSITIONS];
GstStructure *s;
gint num_channels, i, p;
guint64 channel_mask = 0;
s = gst_caps_get_structure (caps, 0);
if (!gst_structure_get_int (s, "channels", &num_channels))
g_return_val_if_reached (FALSE);
/* In theory this should be done for 1 and 2 channels too but
* apparently breaks too many things currently.
*/
if (num_channels <= 2 || num_channels > MAX_CHANNEL_POSITIONS) {
if (num_channels < 2 || num_channels > MAX_CHANNEL_POSITIONS) {
GST_DEBUG ("invalid number of channels: %d", num_channels);
return FALSE;
}
@ -996,7 +993,7 @@ gst_riff_wavext_add_channel_layout (GstCaps * caps, guint32 layout)
/* what to do? just ignore it and let downstream deal with a channel
* layout that has INVALID positions in it for now ... */
}
pos[p] = layout_mapping[i].gst_pos;
channel_mask |= G_GUINT64_CONSTANT (1) << layout_mapping[i].gst_pos;
++p;
}
}
@ -1007,16 +1004,18 @@ gst_riff_wavext_add_channel_layout (GstCaps * caps, guint32 layout)
return FALSE;
}
gst_audio_set_channel_positions (s, pos);
gst_caps_set_simple (caps, "channel-mask", GST_TYPE_BITMASK, channel_mask,
NULL);
return TRUE;
}
static gboolean
gst_riff_wave_add_default_channel_layout (GstCaps * caps)
gst_riff_wave_add_default_channel_mask (GstCaps * caps)
{
GstAudioChannelPosition pos[8] = { GST_AUDIO_CHANNEL_POSITION_NONE, };
GstStructure *s;
gint nchannels;
guint64 channel_mask = 0;
s = gst_caps_get_structure (caps, 0);
@ -1037,31 +1036,40 @@ gst_riff_wave_add_default_channel_layout (GstCaps * caps)
*/
switch (nchannels) {
case 1:
pos[0] = GST_AUDIO_CHANNEL_POSITION_FRONT_MONO;
break;
/* Mono => nothing */
return TRUE;
case 8:
pos[7] = GST_AUDIO_CHANNEL_POSITION_SIDE_RIGHT;
pos[6] = GST_AUDIO_CHANNEL_POSITION_SIDE_LEFT;
channel_mask |=
G_GUINT64_CONSTANT (1) << GST_AUDIO_CHANNEL_POSITION_SIDE_RIGHT;
channel_mask |=
G_GUINT64_CONSTANT (1) << GST_AUDIO_CHANNEL_POSITION_SIDE_LEFT;
/* fall through */
case 6:
pos[5] = GST_AUDIO_CHANNEL_POSITION_LFE;
channel_mask |= G_GUINT64_CONSTANT (1) << GST_AUDIO_CHANNEL_POSITION_LFE1;
/* fall through */
case 5:
pos[4] = GST_AUDIO_CHANNEL_POSITION_FRONT_CENTER;
channel_mask |=
G_GUINT64_CONSTANT (1) << GST_AUDIO_CHANNEL_POSITION_FRONT_CENTER;
/* fall through */
case 4:
pos[3] = GST_AUDIO_CHANNEL_POSITION_REAR_RIGHT;
pos[2] = GST_AUDIO_CHANNEL_POSITION_REAR_LEFT;
channel_mask |=
G_GUINT64_CONSTANT (1) << GST_AUDIO_CHANNEL_POSITION_REAR_RIGHT;
channel_mask |=
G_GUINT64_CONSTANT (1) << GST_AUDIO_CHANNEL_POSITION_REAR_LEFT;
/* fall through */
case 2:
pos[1] = GST_AUDIO_CHANNEL_POSITION_FRONT_RIGHT;
pos[0] = GST_AUDIO_CHANNEL_POSITION_FRONT_LEFT;
channel_mask |=
G_GUINT64_CONSTANT (1) << GST_AUDIO_CHANNEL_POSITION_FRONT_RIGHT;
channel_mask |=
G_GUINT64_CONSTANT (1) << GST_AUDIO_CHANNEL_POSITION_FRONT_LEFT;
break;
default:
return FALSE;
}
gst_audio_set_channel_positions (s, pos);
gst_caps_set_simple (caps, "channel-mask", GST_TYPE_BITMASK, channel_mask,
NULL);
return TRUE;
}
@ -1152,7 +1160,7 @@ gst_riff_create_audio_caps (guint16 codec_id,
if (ch > 2) {
if (ch > 8)
GST_WARNING ("don't know default layout for %d channels", ch);
else if (gst_riff_wave_add_default_channel_layout (caps))
else if (gst_riff_wave_add_default_channel_mask (caps))
GST_DEBUG ("using default channel layout for %d channels", ch);
else
GST_WARNING ("failed to add channel layout");
@ -1196,7 +1204,7 @@ gst_riff_create_audio_caps (guint16 codec_id,
if (ch > 2) {
if (ch > 8)
GST_WARNING ("don't know default layout for %d channels", ch);
else if (gst_riff_wave_add_default_channel_layout (caps))
else if (gst_riff_wave_add_default_channel_mask (caps))
GST_DEBUG ("using default channel layout for %d channels", ch);
else
GST_WARNING ("failed to add channel layout");
@ -1519,7 +1527,7 @@ gst_riff_create_audio_caps (guint16 codec_id,
gst_riff_wavext_get_default_channel_mask (strf->channels);
if ((channel_mask != 0 || strf->channels > 2) &&
!gst_riff_wavext_add_channel_layout (caps, channel_mask)) {
!gst_riff_wavext_add_channel_mask (caps, channel_mask)) {
GST_WARNING ("failed to add channel layout");
gst_caps_unref (caps);
caps = NULL;
@ -1551,7 +1559,7 @@ gst_riff_create_audio_caps (guint16 codec_id,
gst_riff_wavext_get_default_channel_mask (strf->channels);
if ((channel_mask != 0 || strf->channels > 2) &&
!gst_riff_wavext_add_channel_layout (caps, channel_mask)) {
!gst_riff_wavext_add_channel_mask (caps, channel_mask)) {
GST_WARNING ("failed to add channel layout");
gst_caps_unref (caps);
caps = NULL;