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authorArun Raghavan <arun.raghavan@collabora.co.uk>2011-02-25 12:35:14 +0530
committerArun Raghavan <arun.raghavan@collabora.co.uk>2011-05-02 10:17:20 +0530
commitc3839c76377ea7662f29364ae66718e8ac6233af (patch)
tree567b85df3a7e10a5710456231711b8f43f954eab /src/pulse
parent802c8b6fcc9349505d00c1f6f6132dd513904b68 (diff)
core: Add a pa_format_info structure
This will be used to represent the format of data provided by the client for both compressed and PCM formats in a new extended API.
Diffstat (limited to 'src/pulse')
-rw-r--r--src/pulse/format.c71
-rw-r--r--src/pulse/format.h79
-rw-r--r--src/pulse/pulseaudio.h1
3 files changed, 151 insertions, 0 deletions
diff --git a/src/pulse/format.c b/src/pulse/format.c
new file mode 100644
index 00000000..372ae1c5
--- /dev/null
+++ b/src/pulse/format.c
@@ -0,0 +1,71 @@
+/***
+ This file is part of PulseAudio.
+
+ Copyright 2011 Intel Corporation
+ Copyright 2011 Collabora Multimedia
+ Copyright 2011 Arun Raghavan <arun.raghavan@collabora.co.uk>
+
+ PulseAudio is free software; you can redistribute it and/or modify
+ it under the terms of the GNU Lesser General Public License as published
+ by the Free Software Foundation; either version 2.1 of the License,
+ or (at your option) any later version.
+
+ PulseAudio is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with PulseAudio; if not, write to the Free Software
+ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
+ USA.
+***/
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <pulse/internal.h>
+#include <pulse/xmalloc.h>
+
+#include <pulsecore/core-util.h>
+#include <pulsecore/macro.h>
+
+#include "format.h"
+
+pa_format_info* pa_format_info_new(void) {
+ pa_format_info *f = pa_xnew(pa_format_info, 1);
+
+ f->encoding = PA_ENCODING_INVALID;
+ f->plist = pa_proplist_new();
+
+ return f;
+}
+
+pa_format_info* pa_format_info_copy(const pa_format_info *src) {
+ pa_format_info *dest;
+
+ pa_assert(src);
+
+ dest = pa_xnew(pa_format_info, 1);
+
+ dest->encoding = src->encoding;
+
+ if (src->plist)
+ dest->plist = pa_proplist_copy(src->plist);
+ else
+ dest->plist = NULL;
+
+ return dest;
+}
+
+void pa_format_info_free(pa_format_info *f) {
+ pa_assert(f);
+
+ pa_proplist_free(f->plist);
+ pa_xfree(f);
+}
+
+int pa_format_info_valid(pa_format_info *f) {
+ return (f->encoding >= 0 && f->encoding < PA_ENCODING_MAX && f->plist != NULL);
+}
diff --git a/src/pulse/format.h b/src/pulse/format.h
new file mode 100644
index 00000000..fdf4f377
--- /dev/null
+++ b/src/pulse/format.h
@@ -0,0 +1,79 @@
+#ifndef fooformathfoo
+#define fooformathfoo
+
+/***
+ This file is part of PulseAudio.
+
+ Copyright 2011 Intel Corporation
+ Copyright 2011 Collabora Multimedia
+ Copyright 2011 Arun Raghavan <arun.raghavan@collabora.co.uk>
+
+ PulseAudio is free software; you can redistribute it and/or modify
+ it under the terms of the GNU Lesser General Public License as published
+ by the Free Software Foundation; either version 2.1 of the License,
+ or (at your option) any later version.
+
+ PulseAudio is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with PulseAudio; if not, write to the Free Software
+ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
+ USA.
+***/
+
+#include <pulse/cdecl.h>
+#include <pulse/proplist.h>
+
+PA_C_DECL_BEGIN
+
+/**< Represents the type of encoding used in a stream or accepted by a sink. \since 1.0 */
+typedef enum pa_encoding {
+ PA_ENCODING_ANY,
+ /**< Any encoding format, PCM or compressed */
+
+ PA_ENCODING_PCM,
+ /**< Any PCM format */
+
+ PA_ENCODING_AC3_IEC61937,
+ /**< AC3 data encapsulated in IEC 61937 header/padding */
+
+ PA_ENCODING_EAC3_IEC61937,
+ /**< EAC3 data encapsulated in IEC 61937 header/padding */
+
+ PA_ENCODING_MPEG_IEC61937,
+ /**< MPEG-1 or MPEG-2 (Part 3, not AAC) data encapsulated in IEC 61937 header/padding */
+
+ PA_ENCODING_MAX,
+ /**< Valid encoding types must be less than this value */
+
+ PA_ENCODING_INVALID = -1,
+ /**< Represents an invalid encoding */
+} pa_encoding_t;
+
+/**< Represents the format of data provided in a stream or processed by a sink. \since 1.0 */
+typedef struct pa_format_info {
+ pa_encoding_t encoding;
+ /**< The encoding used for the format */
+
+ pa_proplist *plist;
+ /**< Additional encoding-specific properties such as sample rate, bitrate, etc. */
+} pa_format_info;
+
+/**< Allocates a new \a pa_format_info structure. Clients must initialise at least the encoding field themselves. */
+pa_format_info* pa_format_info_new(void);
+
+/**< Returns a new \a pa_format_info struct and representing the same format as \a src */
+pa_format_info* pa_format_info_copy(const pa_format_info *src);
+
+/**< Frees a \a pa_format_info structure */
+void pa_format_info_free(pa_format_info *f);
+
+/** Returns non-zero when the format info structure is valid */
+int pa_format_info_valid(pa_format_info *f);
+
+PA_C_DECL_END
+
+#endif
diff --git a/src/pulse/pulseaudio.h b/src/pulse/pulseaudio.h
index 793ba9b1..a399ed96 100644
--- a/src/pulse/pulseaudio.h
+++ b/src/pulse/pulseaudio.h
@@ -25,6 +25,7 @@
#include <pulse/mainloop-api.h>
#include <pulse/sample.h>
+#include <pulse/format.h>
#include <pulse/def.h>
#include <pulse/context.h>
#include <pulse/stream.h>