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a52dec: Update for the new raw audio caps

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This commit is contained in:
Sebastian Dröge 2012-01-04 16:05:59 +01:00
parent a1f24f72a7
commit 882aaf0de2
2 changed files with 27 additions and 20 deletions
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44
ext/a52dec/gsta52dec.c
View file

@ -43,7 +43,6 @@
#include "_stdint.h"
#include <gst/gst.h>
#include <gst/audio/multichannel.h>
#include <a52dec/a52.h>
#include <a52dec/mm_accel.h>
@ -84,6 +83,7 @@ static GstStaticPadTemplate src_factory = GST_STATIC_PAD_TEMPLATE ("src",
GST_PAD_ALWAYS,
GST_STATIC_CAPS ("audio/x-raw, "
"format = (string) " SAMPLE_FORMAT ", "
"layout = (string) interleaved, "
"rate = (int) [ 4000, 96000 ], " "channels = (int) [ 1, 6 ]")
);
@ -231,21 +231,14 @@ gst_a52dec_init (GstA52Dec * a52dec)
}
static gint
gst_a52dec_channels (int flags, GstAudioChannelPosition ** _pos)
gst_a52dec_channels (int flags, GstAudioChannelPosition * pos)
{
gint chans = 0;
GstAudioChannelPosition *pos = NULL;
/* allocated just for safety. Number makes no sense */
if (_pos) {
pos = g_new (GstAudioChannelPosition, 6);
*_pos = pos;
}
if (flags & A52_LFE) {
chans += 1;
if (pos) {
pos[0] = GST_AUDIO_CHANNEL_POSITION_LFE;
pos[0] = GST_AUDIO_CHANNEL_POSITION_LFE1;
}
}
flags &= A52_CHANNEL_MASK;
@ -305,13 +298,12 @@ gst_a52dec_channels (int flags, GstAudioChannelPosition ** _pos)
break;
case A52_MONO:
if (pos) {
pos[0 + chans] = GST_AUDIO_CHANNEL_POSITION_FRONT_MONO;
pos[0 + chans] = GST_AUDIO_CHANNEL_POSITION_MONO;
}
chans += 1;
break;
default:
/* error, caller should post error message */
g_free (pos);
return 0;
}
@ -381,6 +373,9 @@ gst_a52dec_push (GstA52Dec * a52dec,
data[n * chans + c] = samples[c * 256 + n];
}
}
gst_audio_reorder_channels (data, 256 * chans * (SAMPLE_WIDTH / 8),
(SAMPLE_WIDTH == 64) ? GST_AUDIO_FORMAT_F64 : GST_AUDIO_FORMAT_F32, chans,
a52dec->from, a52dec->to);
gst_buffer_unmap (buf, data, -1);
GST_BUFFER_TIMESTAMP (buf) = timestamp;
@ -423,23 +418,36 @@ no_channels:
static gboolean
gst_a52dec_reneg (GstA52Dec * a52dec, GstPad * pad)
{
GstAudioChannelPosition *pos;
gint channels = gst_a52dec_channels (a52dec->using_channels, &pos);
gint channels;
GstCaps *caps = NULL;
gboolean result = FALSE;
channels = gst_a52dec_channels (a52dec->using_channels, a52dec->from);
if (!channels)
goto done;
GST_INFO_OBJECT (a52dec, "reneg channels:%d rate:%d",
channels, a52dec->sample_rate);
memcpy (a52dec->to, a52dec->from, sizeof (a52dec->from));
gst_audio_channel_positions_to_valid_order (a52dec->to, channels);
caps = gst_caps_new_simple ("audio/x-raw",
"format", G_TYPE_STRING, SAMPLE_FORMAT,
"layout", G_TYPE_STRING, "interleaved",
"channels", G_TYPE_INT, channels,
"rate", G_TYPE_INT, a52dec->sample_rate, NULL);
gst_audio_set_channel_positions (gst_caps_get_structure (caps, 0), pos);
g_free (pos);
if (channels > 1) {
guint64 channel_mask = 0;
gint i;
for (i = 0; i < channels; i++)
channel_mask |= G_GUINT64_CONSTANT (1) << a52dec->to[i];
gst_caps_set_simple (caps, "channel-mask", GST_TYPE_BITMASK, channel_mask,
NULL);
}
if (!gst_pad_set_caps (pad, caps))
goto done;
@ -977,10 +985,6 @@ plugin_init (GstPlugin * plugin)
orc_init ();
#endif
/* ensure GstAudioChannelPosition type is registered */
if (!gst_audio_channel_position_get_type ())
return FALSE;
if (!gst_element_register (plugin, "a52dec", GST_RANK_SECONDARY,
GST_TYPE_A52DEC))
return FALSE;

3
ext/a52dec/gsta52dec.h
View file

@ -22,6 +22,7 @@
#define __GST_A52DEC_H__
#include <gst/gst.h>
#include <gst/audio/audio.h>
G_BEGIN_DECLS
@ -60,6 +61,8 @@ struct _GstA52Dec {
int request_channels;
int using_channels;
GstAudioChannelPosition from[6], to[6];
sample_t level;
sample_t bias;
gboolean dynamic_range_compression;