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riff: add channel masks for all formats

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Add the channel masks for all the extensible formats
Pass the number of channels instead of reading them from caps.
This commit is contained in:
Wim Taymans 2012-12-21 14:03:32 +01:00
parent d2c68e602d
commit ca456ec6f9
1 changed files with 25 additions and 50 deletions
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75
gst-libs/gst/riff/riff-media.c
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@ -966,18 +966,13 @@ static const struct
#define MAX_CHANNEL_POSITIONS G_N_ELEMENTS (layout_mapping)
static gboolean
gst_riff_wavext_add_channel_mask (GstCaps * caps, guint32 layout,
gint channel_reorder_map[18])
gst_riff_wavext_add_channel_mask (GstCaps * caps, gint num_channels,
guint32 layout, gint channel_reorder_map[18])
{
GstStructure *s;
gint num_channels, i, p;
gint i, p;
guint64 channel_mask = 0;
GstAudioChannelPosition from[18], to[18];
s = gst_caps_get_structure (caps, 0);
if (!gst_structure_get_int (s, "channels", &num_channels))
g_return_val_if_reached (FALSE);
if (num_channels < 1 || num_channels > MAX_CHANNEL_POSITIONS) {
GST_DEBUG ("invalid number of channels: %d", num_channels);
return FALSE;
@ -1026,10 +1021,8 @@ gst_riff_wavext_add_channel_mask (GstCaps * caps, guint32 layout,
static gboolean
gst_riff_wave_add_default_channel_mask (GstCaps * caps,
gint channel_reorder_map[18])
gint nchannels, gint channel_reorder_map[18])
{
GstStructure *s;
gint nchannels;
guint64 channel_mask = 0;
static const gint reorder_maps[8][11] = {
{0,},
@ -1042,11 +1035,6 @@ gst_riff_wave_add_default_channel_mask (GstCaps * caps,
{0, 1, 4, 5, 2, 3, 6, 7}
};
s = gst_caps_get_structure (caps, 0);
if (!gst_structure_get_int (s, "channels", &nchannels))
g_return_val_if_reached (FALSE);
if (nchannels > 8) {
GST_DEBUG ("invalid number of channels: %d", nchannels);
return FALSE;
@ -1195,7 +1183,7 @@ gst_riff_create_audio_caps (guint16 codec_id,
* 8 channels. */
if (ch > 8)
GST_WARNING ("don't know default layout for %d channels", ch);
else if (gst_riff_wave_add_default_channel_mask (caps,
else if (gst_riff_wave_add_default_channel_mask (caps, ch,
channel_reorder_map))
GST_DEBUG ("using default channel layout for %d channels", ch);
else
@ -1237,7 +1225,7 @@ gst_riff_create_audio_caps (guint16 codec_id,
* 8 channels. */
if (ch > 8)
GST_WARNING ("don't know default layout for %d channels", ch);
else if (gst_riff_wave_add_default_channel_mask (caps,
else if (gst_riff_wave_add_default_channel_mask (caps, ch,
channel_reorder_map))
GST_DEBUG ("using default channel layout for %d channels", ch);
else
@ -1553,22 +1541,6 @@ gst_riff_create_audio_caps (guint16 codec_id,
"channels", G_TYPE_INT, strf->channels,
"rate", G_TYPE_INT, strf->rate, NULL);
/* If channel_mask == 0 and channels > 2 let's
* assume default layout as some wav files don't have the
* channel mask set. Don't set the layout for 1 channel. */
if (channel_mask == 0 && strf->channels > 1)
channel_mask =
gst_riff_wavext_get_default_channel_mask (strf->channels);
if ((channel_mask != 0 || strf->channels > 1) &&
!gst_riff_wavext_add_channel_mask (caps, channel_mask,
channel_reorder_map)) {
GST_WARNING ("failed to add channel layout");
gst_caps_unref (caps);
caps = NULL;
}
rate_chan = FALSE;
if (codec_name) {
*codec_name = g_strdup_printf ("Uncompressed %d-bit PCM audio",
strf->bits_per_sample);
@ -1586,22 +1558,6 @@ gst_riff_create_audio_caps (guint16 codec_id,
"channels", G_TYPE_INT, strf->channels,
"rate", G_TYPE_INT, strf->rate, NULL);
/* If channel_mask == 0 and channels > 1 let's
* assume default layout as some wav files don't have the
* channel mask set. Don't set the layout for 1 channel. */
if (channel_mask == 0 && strf->channels > 1)
channel_mask =
gst_riff_wavext_get_default_channel_mask (strf->channels);
if ((channel_mask != 0 || strf->channels > 1) &&
!gst_riff_wavext_add_channel_mask (caps, channel_mask,
channel_reorder_map)) {
GST_WARNING ("failed to add channel layout");
gst_caps_unref (caps);
caps = NULL;
}
rate_chan = FALSE;
if (codec_name) {
*codec_name =
g_strdup_printf ("Uncompressed %d-bit IEEE float audio",
@ -1662,6 +1618,7 @@ gst_riff_create_audio_caps (guint16 codec_id,
if (codec_name)
*codec_name = g_strdup ("AC-3 audio");
}
} else if (subformat_guid[0] == 0x6ba47966 &&
subformat_guid[1] == 0x41783f83 &&
subformat_guid[2] == 0xf0006596 && subformat_guid[3] == 0xe59262bf) {
@ -1670,6 +1627,24 @@ gst_riff_create_audio_caps (guint16 codec_id,
*codec_name = g_strdup ("Ogg-AVI");
}
if (strf != NULL) {
/* If channel_mask == 0 and channels > 1 let's
* assume default layout as some wav files don't have the
* channel mask set. Don't set the layout for 1 channel. */
if (channel_mask == 0 && strf->channels > 1)
channel_mask =
gst_riff_wavext_get_default_channel_mask (strf->channels);
if ((channel_mask != 0 || strf->channels > 1) &&
!gst_riff_wavext_add_channel_mask (caps, strf->channels,
channel_mask, channel_reorder_map)) {
GST_WARNING ("failed to add channel layout");
gst_caps_unref (caps);
caps = NULL;
}
rate_chan = FALSE;
}
if (caps == NULL) {
GST_WARNING ("Unknown WAVE_FORMAT_EXTENSIBLE audio format");
return NULL;