pipewire/spa/lib/audio-raw.c
Wim Taymans dd1fbef28f work on memory references
Add a memory reference helper struct that we can use to track the memory
in buffers and formats.
Remove custom property get and set, the default ones will work fine.
Custom ones are problematic when we want to serialize properties in
formats etc.
Deserialized Formats are now tracked in the memory pool and can be freed
if needed.
2016-08-04 19:24:16 +02:00

250 lines
10 KiB
C

/* Simple Plugin API
* Copyright (C) 2016 Wim Taymans <wim.taymans@gmail.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#include <stdint.h>
#include <stddef.h>
#include <stdio.h>
#include <string.h>
#include <spa/audio/raw.h>
#include <spa/audio/format.h>
static const SpaAudioRawInfo default_info = {
SPA_AUDIO_FORMAT_S16,
SPA_AUDIO_FLAG_NONE,
SPA_AUDIO_LAYOUT_INTERLEAVED,
44100,
2,
0
};
static const uint32_t format_values[] = {
SPA_AUDIO_FORMAT_S8,
SPA_AUDIO_FORMAT_U8,
/* 16 bit */
SPA_AUDIO_FORMAT_S16LE,
SPA_AUDIO_FORMAT_S16BE,
SPA_AUDIO_FORMAT_U16LE,
SPA_AUDIO_FORMAT_U16BE,
/* 24 bit in low 3 bytes of 32 bits*/
SPA_AUDIO_FORMAT_S24_32LE,
SPA_AUDIO_FORMAT_S24_32BE,
SPA_AUDIO_FORMAT_U24_32LE,
SPA_AUDIO_FORMAT_U24_32BE,
/* 32 bit */
SPA_AUDIO_FORMAT_S32LE,
SPA_AUDIO_FORMAT_S32BE,
SPA_AUDIO_FORMAT_U32LE,
SPA_AUDIO_FORMAT_U32BE,
/* 24 bit in 3 bytes*/
SPA_AUDIO_FORMAT_S24LE,
SPA_AUDIO_FORMAT_S24BE,
SPA_AUDIO_FORMAT_U24LE,
SPA_AUDIO_FORMAT_U24BE,
/* 20 bit in 3 bytes*/
SPA_AUDIO_FORMAT_S20LE,
SPA_AUDIO_FORMAT_S20BE,
SPA_AUDIO_FORMAT_U20LE,
SPA_AUDIO_FORMAT_U20BE,
/* 18 bit in 3 bytes*/
SPA_AUDIO_FORMAT_S18LE,
SPA_AUDIO_FORMAT_S18BE,
SPA_AUDIO_FORMAT_U18LE,
SPA_AUDIO_FORMAT_U18BE,
/* float */
SPA_AUDIO_FORMAT_F32LE,
SPA_AUDIO_FORMAT_F32BE,
SPA_AUDIO_FORMAT_F64LE,
SPA_AUDIO_FORMAT_F64BE
};
static const SpaPropRangeInfo format_format_range[] = {
{ "S8", "S8", sizeof (uint32_t), &format_values[0] },
{ "U8", "U8", sizeof (uint32_t), &format_values[1] },
{ "S16LE", "S16LE", sizeof (uint32_t), &format_values[2] },
{ "S16BE", "S16BE", sizeof (uint32_t), &format_values[3] },
{ "U16LE", "U16LE", sizeof (uint32_t), &format_values[4] },
{ "U16BE", "U16BE", sizeof (uint32_t), &format_values[5] },
{ "S24_32LE", "S24_32LE", sizeof (uint32_t), &format_values[6] },
{ "S24_32BE", "S24_32BE", sizeof (uint32_t), &format_values[7] },
{ "U24_32LE", "U24_32LE", sizeof (uint32_t), &format_values[8] },
{ "U24_32BE", "U24_32BE", sizeof (uint32_t), &format_values[9] },
{ "S32LE", "S32LE", sizeof (uint32_t), &format_values[10] },
{ "S32BE", "S32BE", sizeof (uint32_t), &format_values[11] },
{ "U32LE", "U32LE", sizeof (uint32_t), &format_values[12] },
{ "U32BE", "U32BE", sizeof (uint32_t), &format_values[13] },
{ "S24LE", "S24LE", sizeof (uint32_t), &format_values[14] },
{ "S24BE", "S24BE", sizeof (uint32_t), &format_values[15] },
{ "U24LE", "U24LE", sizeof (uint32_t), &format_values[16] },
{ "U24BE", "U24BE", sizeof (uint32_t), &format_values[17] },
{ "S20LE", "S20LE", sizeof (uint32_t), &format_values[18] },
{ "S20BE", "S20BE", sizeof (uint32_t), &format_values[19] },
{ "U20LE", "U20LE", sizeof (uint32_t), &format_values[20] },
{ "U20BE", "U20BE", sizeof (uint32_t), &format_values[21] },
{ "S18LE", "S18LE", sizeof (uint32_t), &format_values[22] },
{ "S18BE", "S18BE", sizeof (uint32_t), &format_values[23] },
{ "U18LE", "U18LE", sizeof (uint32_t), &format_values[24] },
{ "U18BE", "U18BE", sizeof (uint32_t), &format_values[25] },
{ "F32LE", "F32LE", sizeof (uint32_t), &format_values[26] },
{ "F32BE", "F32BE", sizeof (uint32_t), &format_values[27] },
{ "F64LE", "F64LE", sizeof (uint32_t), &format_values[28] },
{ "F64BE", "F64BE", sizeof (uint32_t), &format_values[29] },
};
static const uint32_t format_layouts[] = {
SPA_AUDIO_LAYOUT_INTERLEAVED,
SPA_AUDIO_LAYOUT_NON_INTERLEAVED,
};
static const SpaPropRangeInfo layouts_range[] = {
{ "interleaved", "Interleaved samples", sizeof (uint32_t), &format_layouts[0] },
{ "non-interleaved", "Non-interleaved samples", sizeof (uint32_t), &format_layouts[1] },
};
static const uint32_t format_flags[] = {
SPA_AUDIO_FLAG_NONE,
SPA_AUDIO_FLAG_UNPOSITIONED,
};
static const SpaPropRangeInfo flags_range[] = {
{ "none", "No flags", sizeof (uint32_t), &format_flags[0] },
{ "unpositioned", "Unpositioned channels", sizeof (uint32_t), &format_flags[1] },
};
static const uint32_t min_uint32 = 1;
static const uint32_t max_uint32 = UINT32_MAX;
static const SpaPropRangeInfo uint32_range[] = {
{ "min", "Minimum value", 4, &min_uint32 },
{ "max", "Maximum value", 4, &max_uint32 },
};
static const SpaPropInfo raw_format_prop_info[] =
{
{ SPA_PROP_ID_AUDIO_FORMAT, "format", "The media format",
SPA_PROP_FLAG_READWRITE,
SPA_PROP_TYPE_UINT32, sizeof (uint32_t),
sizeof (uint32_t), &default_info.format,
SPA_PROP_RANGE_TYPE_ENUM, SPA_N_ELEMENTS (format_format_range), format_format_range,
NULL,
offsetof (SpaAudioRawFormat, info.format),
offsetof (SpaAudioRawFormat, unset_mask), 1 << 0,
NULL },
{ SPA_PROP_ID_AUDIO_FLAGS, "flags", "Sample Flags",
SPA_PROP_FLAG_READWRITE,
SPA_PROP_TYPE_UINT32, sizeof (uint32_t),
sizeof (uint32_t), &default_info.flags,
SPA_PROP_RANGE_TYPE_FLAGS, SPA_N_ELEMENTS (flags_range), flags_range,
NULL,
offsetof (SpaAudioRawFormat, info.flags),
offsetof (SpaAudioRawFormat, unset_mask), 1 << 1,
NULL },
{ SPA_PROP_ID_AUDIO_LAYOUT, "layout", "Sample Layout",
SPA_PROP_FLAG_READWRITE,
SPA_PROP_TYPE_UINT32, sizeof (uint32_t),
sizeof (uint32_t), &default_info.layout,
SPA_PROP_RANGE_TYPE_ENUM, SPA_N_ELEMENTS (layouts_range), layouts_range,
NULL,
offsetof (SpaAudioRawFormat, info.layout),
offsetof (SpaAudioRawFormat, unset_mask), 1 << 2,
NULL },
{ SPA_PROP_ID_AUDIO_RATE, "rate", "Audio sample rate",
SPA_PROP_FLAG_READWRITE,
SPA_PROP_TYPE_UINT32, sizeof (uint32_t),
sizeof (uint32_t), &default_info.rate,
SPA_PROP_RANGE_TYPE_MIN_MAX, 2, uint32_range,
NULL,
offsetof (SpaAudioRawFormat, info.rate),
offsetof (SpaAudioRawFormat, unset_mask), 1 << 3,
NULL },
{ SPA_PROP_ID_AUDIO_CHANNELS, "channels", "Audio channels",
SPA_PROP_FLAG_READWRITE,
SPA_PROP_TYPE_UINT32, sizeof (uint32_t),
sizeof (uint32_t), &default_info.channels,
SPA_PROP_RANGE_TYPE_MIN_MAX, 2, uint32_range,
NULL,
offsetof (SpaAudioRawFormat, info.channels),
offsetof (SpaAudioRawFormat, unset_mask), 1 << 4,
NULL },
{ SPA_PROP_ID_AUDIO_CHANNEL_MASK, "channel-mask", "Audio channel mask",
SPA_PROP_FLAG_READWRITE,
SPA_PROP_TYPE_BITMASK, sizeof (uint32_t),
sizeof (uint32_t), &default_info.channel_mask,
SPA_PROP_RANGE_TYPE_NONE, 0, NULL,
NULL,
offsetof (SpaAudioRawFormat, info.channel_mask),
offsetof (SpaAudioRawFormat, unset_mask), 1 << 5,
NULL },
{ SPA_PROP_ID_AUDIO_RAW_INFO, "info", "the SpaAudioRawInfo structure",
SPA_PROP_FLAG_READWRITE,
SPA_PROP_TYPE_POINTER, sizeof (SpaAudioRawInfo),
0, NULL,
SPA_PROP_RANGE_TYPE_NONE, 0, NULL,
NULL,
offsetof (SpaAudioRawFormat, info),
offsetof (SpaAudioRawFormat, unset_mask), ~0,
NULL },
};
SpaResult
spa_audio_raw_format_init (SpaAudioRawFormat *format)
{
format->format.media_type = SPA_MEDIA_TYPE_AUDIO;
format->format.media_subtype = SPA_MEDIA_SUBTYPE_RAW;
format->format.props.n_prop_info = SPA_N_ELEMENTS (raw_format_prop_info);
format->format.props.prop_info = raw_format_prop_info;
format->unset_mask = (1 << 0) | (1 << 2) | (1 << 3) | (1 << 4);
format->info = default_info;
return SPA_RESULT_OK;
}
SpaResult
spa_audio_raw_format_parse (const SpaFormat *format,
SpaAudioRawFormat *rawformat)
{
SpaPropValue value;
const SpaProps *props;
SpaResult res;
if ((void *)format == (void *)rawformat)
return SPA_RESULT_OK;
if (format->media_type != SPA_MEDIA_TYPE_AUDIO ||
format->media_subtype != SPA_MEDIA_SUBTYPE_RAW)
return SPA_RESULT_INVALID_MEDIA_TYPE;
spa_audio_raw_format_init (rawformat);
props = &format->props;
if ((res = spa_props_get_prop (props, spa_props_index_for_id (props, SPA_PROP_ID_AUDIO_RAW_INFO), &value)) < 0)
goto fallback;
if (value.type != SPA_PROP_TYPE_POINTER || value.size != sizeof (SpaAudioRawInfo))
goto fallback;
memcpy (&rawformat->info, value.value, sizeof (SpaAudioRawInfo));
return SPA_RESULT_OK;
fallback:
res = spa_props_copy (props, &rawformat->format.props);
return res;
}