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fdkaacenc: Refactor layout selection code

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No functional change.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1359>
This commit is contained in:
Jan Alexander Steffens (heftig) 2019-05-16 20:40:14 +02:00 committed by Jan Alexander Steffens (heftig)
parent 5e68124981
commit 76c171509e
1 changed files with 30 additions and 24 deletions
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50
ext/fdkaac/gstfdkaacenc.c
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@ -161,19 +161,19 @@ gst_fdkaacenc_get_caps (GstAudioEncoder * enc, GstCaps * filter)
caps = gst_caps_new_empty ();
for (layout = channel_layouts; layout->channels; layout++) {
guint64 channel_mask;
gint channels = layout->channels;
GstCaps *tmp =
gst_caps_make_writable (gst_pad_get_pad_template_caps
(GST_AUDIO_ENCODER_SINK_PAD (enc)));
if (layout->channels == 1) {
gst_caps_set_simple (tmp, "channels", G_TYPE_INT, layout->channels, NULL);
if (channels == 1) {
gst_caps_set_simple (tmp, "channels", G_TYPE_INT, channels, NULL);
} else {
gst_audio_channel_positions_to_mask (layout->positions,
layout->channels, FALSE, &channel_mask);
gst_caps_set_simple (tmp, "channels", G_TYPE_INT,
layout->channels, "channel-mask", GST_TYPE_BITMASK,
channel_mask, NULL);
guint64 channel_mask;
gst_audio_channel_positions_to_mask (layout->positions, channels, FALSE,
&channel_mask);
gst_caps_set_simple (tmp, "channels", G_TYPE_INT, channels,
"channel-mask", GST_TYPE_BITMASK, channel_mask, NULL);
}
gst_caps_append (caps, tmp);
@ -256,28 +256,34 @@ gst_fdkaacenc_set_format (GstAudioEncoder * enc, GstAudioInfo * info)
self->need_reorder = FALSE;
self->aac_positions = NULL;
} else {
guint64 in_channel_mask, out_channel_mask;
gint in_channels = GST_AUDIO_INFO_CHANNELS (info);
const GstAudioChannelPosition *in_positions =
&GST_AUDIO_INFO_POSITION (info, 0);
guint64 in_channel_mask;
const GstFdkAacChannelLayout *layout;
gst_audio_channel_positions_to_mask (in_positions, in_channels, FALSE,
&in_channel_mask);
for (layout = channel_layouts; layout->channels; layout++) {
if (layout->channels != GST_AUDIO_INFO_CHANNELS (info))
gint channels = layout->channels;
const GstAudioChannelPosition *positions = layout->positions;
guint64 channel_mask;
if (channels != in_channels)
continue;
gst_audio_channel_positions_to_mask (positions, channels, FALSE,
&channel_mask);
if (channel_mask != in_channel_mask)
continue;
gst_audio_channel_positions_to_mask (&GST_AUDIO_INFO_POSITION (info, 0),
GST_AUDIO_INFO_CHANNELS (info), FALSE, &in_channel_mask);
gst_audio_channel_positions_to_mask (layout->positions,
layout->channels, FALSE, &out_channel_mask);
if (in_channel_mask == out_channel_mask) {
channel_mode = layout->mode;
self->need_reorder =
memcmp (layout->positions,
&GST_AUDIO_INFO_POSITION (info, 0),
GST_AUDIO_INFO_CHANNELS (info) *
sizeof (GstAudioChannelPosition)) != 0;
self->aac_positions = layout->positions;
self->need_reorder = memcmp (positions, in_positions,
channels * sizeof *positions) != 0;
self->aac_positions = positions;
break;
}
}
if (!layout->channels) {
GST_ERROR_OBJECT (self, "Couldn't find a valid channel layout");