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This can be used by sinks to take compressed formats, correctly payload these in IEC 61937 frames and feed these to sinks that support passthrough output over IEC 60958 (S/PDIF) or, in the case of MP3, over Bluetooth. Initial implementation includes AC3, E-AC3, MPEG-1, MPEG-2 (non-AAC), and DTS (type-I/II/II) payloading. More formats can be added as needed. API: gst_audio_iec61937_frame_size() API: gst_audio_iec61937_payload() https://bugzilla.gnome.org/show_bug.cgi?id=642730
38 lines
1.5 KiB
C
38 lines
1.5 KiB
C
/* GStreamer audio helper functions for IEC 61937 payloading
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* (c) 2011 Intel Corporation
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* 2011 Collabora Multimedia
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* 2011 Arun Raghavan <arun.raghavan@collabora.co.uk>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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/**
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* SECTION:gstaudioiec61937
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* @short_description: Utility functions for IEC 61937 payloading
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*
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* This module contains some helper functions for encapsulating various
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* audio formats in IEC 61937 headers and padding.
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*/
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#ifndef __GST_AUDIO_IEC61937_H__
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#define __GST_AUDIO_IEC61937_H__
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#include <gst/audio/gstringbuffer.h>
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guint gst_audio_iec61937_frame_size (const GstRingBufferSpec * spec);
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gboolean gst_audio_iec61937_payload (const guint8 * src, guint src_n,
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guint8 * dst, guint dst_n, const GstRingBufferSpec * spec);
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#endif /* __GST_AUDIO_IEC61937_H__ */
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