mirror of
https://gitlab.freedesktop.org/pipewire/pipewire.git
synced 2025-10-29 05:40:27 -04:00
f5d51162c4
Mark some structures, arrays static/const at various places. In some cases this prevents unnecessary initialization when a function is entered. All in all, the text segments across all shared libraries are reduced by about 2 KiB. However, the total size increases by about 2 KiB as well.
550 lines
18 KiB
C
550 lines
18 KiB
C
/* PipeWire
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*
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* Copyright © 2020 Wim Taymans
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*/
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#include <spa/utils/string.h>
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#include <spa/debug/types.h>
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#include <spa/param/audio/format.h>
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#include <spa/param/audio/format-utils.h>
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#include <spa/param/audio/raw.h>
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#include <spa/utils/json.h>
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#include "format.h"
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static const struct format audio_formats[] = {
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[SAMPLE_U8] = { SAMPLE_U8, SPA_AUDIO_FORMAT_U8, "u8", 1 },
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[SAMPLE_ALAW] = { SAMPLE_ALAW, SPA_AUDIO_FORMAT_UNKNOWN, "aLaw", 1 },
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[SAMPLE_ULAW] = { SAMPLE_ULAW, SPA_AUDIO_FORMAT_UNKNOWN, "uLaw", 1 },
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[SAMPLE_S16LE] = { SAMPLE_S16LE, SPA_AUDIO_FORMAT_S16_LE, "s16le", 2 },
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[SAMPLE_S16BE] = { SAMPLE_S16BE, SPA_AUDIO_FORMAT_S16_BE, "s16be", 2 },
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[SAMPLE_FLOAT32LE] = { SAMPLE_FLOAT32LE, SPA_AUDIO_FORMAT_F32_LE, "float32le", 4 },
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[SAMPLE_FLOAT32BE] = { SAMPLE_FLOAT32BE, SPA_AUDIO_FORMAT_F32_BE, "float32be", 4 },
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[SAMPLE_S32LE] = { SAMPLE_S32LE, SPA_AUDIO_FORMAT_S32_LE, "s32le", 4 },
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[SAMPLE_S32BE] = { SAMPLE_S32BE, SPA_AUDIO_FORMAT_S32_BE, "s32be", 4 },
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[SAMPLE_S24LE] = { SAMPLE_S24LE, SPA_AUDIO_FORMAT_S24_LE, "s24le", 3 },
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[SAMPLE_S24BE] = { SAMPLE_S24BE, SPA_AUDIO_FORMAT_S24_BE, "s24be", 3 },
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[SAMPLE_S24_32LE] = { SAMPLE_S24_32LE, SPA_AUDIO_FORMAT_S24_32_LE, "s24-32le", 4 },
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[SAMPLE_S24_32BE] = { SAMPLE_S24_32BE, SPA_AUDIO_FORMAT_S24_32_BE, "s24-32be", 4 },
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#if __BYTE_ORDER == __BIG_ENDIAN
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{ SAMPLE_S16BE, SPA_AUDIO_FORMAT_S16_BE, "s16ne", 2 },
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{ SAMPLE_FLOAT32BE, SPA_AUDIO_FORMAT_F32_BE, "float32ne", 4 },
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{ SAMPLE_S32BE, SPA_AUDIO_FORMAT_S32_BE, "s32ne", 4 },
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{ SAMPLE_S24BE, SPA_AUDIO_FORMAT_S24_BE, "s24ne", 3 },
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{ SAMPLE_S24_32BE, SPA_AUDIO_FORMAT_S24_32_BE, "s24-32ne", 4 },
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#elif __BYTE_ORDER == __LITTLE_ENDIAN
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{ SAMPLE_S16LE, SPA_AUDIO_FORMAT_S16_LE, "s16ne", 2 },
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{ SAMPLE_FLOAT32LE, SPA_AUDIO_FORMAT_F32_LE, "float32ne", 4 },
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{ SAMPLE_S32LE, SPA_AUDIO_FORMAT_S32_LE, "s32ne", 4 },
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{ SAMPLE_S24LE, SPA_AUDIO_FORMAT_S24_LE, "s24ne", 3 },
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{ SAMPLE_S24_32LE, SPA_AUDIO_FORMAT_S24_32_LE, "s24-32ne", 4 },
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#endif
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/* planar formats, we just report them as interleaved */
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{ SAMPLE_U8, SPA_AUDIO_FORMAT_U8P, "u8ne", 1 },
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{ SAMPLE_S16NE, SPA_AUDIO_FORMAT_S16P, "s16ne", 2 },
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{ SAMPLE_S24_32NE, SPA_AUDIO_FORMAT_S24_32P, "s24-32ne", 4 },
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{ SAMPLE_S32NE, SPA_AUDIO_FORMAT_S32P, "s32ne", 4 },
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{ SAMPLE_S24NE, SPA_AUDIO_FORMAT_S24P, "s24ne", 3 },
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{ SAMPLE_FLOAT32NE, SPA_AUDIO_FORMAT_F32P, "float32ne", 4 },
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};
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static const struct channel audio_channels[] = {
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[CHANNEL_POSITION_MONO] = { SPA_AUDIO_CHANNEL_MONO, "mono", },
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[CHANNEL_POSITION_FRONT_LEFT] = { SPA_AUDIO_CHANNEL_FL, "front-left", },
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[CHANNEL_POSITION_FRONT_RIGHT] = { SPA_AUDIO_CHANNEL_FR, "front-right", },
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[CHANNEL_POSITION_FRONT_CENTER] = { SPA_AUDIO_CHANNEL_FC, "front-center", },
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[CHANNEL_POSITION_REAR_CENTER] = { SPA_AUDIO_CHANNEL_RC, "rear-center", },
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[CHANNEL_POSITION_REAR_LEFT] = { SPA_AUDIO_CHANNEL_RL, "rear-left", },
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[CHANNEL_POSITION_REAR_RIGHT] = { SPA_AUDIO_CHANNEL_RR, "rear-right", },
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[CHANNEL_POSITION_LFE] = { SPA_AUDIO_CHANNEL_LFE, "lfe", },
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[CHANNEL_POSITION_FRONT_LEFT_OF_CENTER] = { SPA_AUDIO_CHANNEL_FLC, "front-left-of-center", },
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[CHANNEL_POSITION_FRONT_RIGHT_OF_CENTER] = { SPA_AUDIO_CHANNEL_FRC, "front-right-of-center", },
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[CHANNEL_POSITION_SIDE_LEFT] = { SPA_AUDIO_CHANNEL_SL, "side-left", },
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[CHANNEL_POSITION_SIDE_RIGHT] = { SPA_AUDIO_CHANNEL_SR, "side-right", },
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[CHANNEL_POSITION_AUX0] = { SPA_AUDIO_CHANNEL_CUSTOM_START + 1, "aux0", },
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[CHANNEL_POSITION_AUX1] = { SPA_AUDIO_CHANNEL_CUSTOM_START + 2, "aux1", },
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[CHANNEL_POSITION_AUX2] = { SPA_AUDIO_CHANNEL_CUSTOM_START + 3, "aux2", },
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[CHANNEL_POSITION_AUX3] = { SPA_AUDIO_CHANNEL_CUSTOM_START + 4, "aux3", },
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[CHANNEL_POSITION_AUX4] = { SPA_AUDIO_CHANNEL_CUSTOM_START + 5, "aux4", },
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[CHANNEL_POSITION_AUX5] = { SPA_AUDIO_CHANNEL_CUSTOM_START + 6, "aux5", },
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[CHANNEL_POSITION_AUX6] = { SPA_AUDIO_CHANNEL_CUSTOM_START + 7, "aux6", },
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[CHANNEL_POSITION_AUX7] = { SPA_AUDIO_CHANNEL_CUSTOM_START + 8, "aux7", },
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[CHANNEL_POSITION_AUX8] = { SPA_AUDIO_CHANNEL_CUSTOM_START + 9, "aux8", },
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[CHANNEL_POSITION_AUX9] = { SPA_AUDIO_CHANNEL_CUSTOM_START + 10, "aux9", },
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[CHANNEL_POSITION_AUX10] = { SPA_AUDIO_CHANNEL_CUSTOM_START + 11, "aux10", },
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[CHANNEL_POSITION_AUX11] = { SPA_AUDIO_CHANNEL_CUSTOM_START + 12, "aux11", },
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[CHANNEL_POSITION_AUX12] = { SPA_AUDIO_CHANNEL_CUSTOM_START + 13, "aux12", },
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[CHANNEL_POSITION_AUX13] = { SPA_AUDIO_CHANNEL_CUSTOM_START + 14, "aux13", },
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[CHANNEL_POSITION_AUX14] = { SPA_AUDIO_CHANNEL_CUSTOM_START + 15, "aux14", },
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[CHANNEL_POSITION_AUX15] = { SPA_AUDIO_CHANNEL_CUSTOM_START + 16, "aux15", },
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[CHANNEL_POSITION_AUX16] = { SPA_AUDIO_CHANNEL_CUSTOM_START + 17, "aux16", },
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[CHANNEL_POSITION_AUX17] = { SPA_AUDIO_CHANNEL_CUSTOM_START + 18, "aux17", },
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[CHANNEL_POSITION_AUX18] = { SPA_AUDIO_CHANNEL_CUSTOM_START + 19, "aux18", },
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[CHANNEL_POSITION_AUX19] = { SPA_AUDIO_CHANNEL_CUSTOM_START + 20, "aux19", },
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[CHANNEL_POSITION_AUX20] = { SPA_AUDIO_CHANNEL_CUSTOM_START + 21, "aux20", },
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[CHANNEL_POSITION_AUX21] = { SPA_AUDIO_CHANNEL_CUSTOM_START + 22, "aux21", },
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[CHANNEL_POSITION_AUX22] = { SPA_AUDIO_CHANNEL_CUSTOM_START + 23, "aux22", },
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[CHANNEL_POSITION_AUX23] = { SPA_AUDIO_CHANNEL_CUSTOM_START + 24, "aux23", },
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[CHANNEL_POSITION_AUX24] = { SPA_AUDIO_CHANNEL_CUSTOM_START + 25, "aux24", },
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[CHANNEL_POSITION_AUX25] = { SPA_AUDIO_CHANNEL_CUSTOM_START + 26, "aux25", },
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[CHANNEL_POSITION_AUX26] = { SPA_AUDIO_CHANNEL_CUSTOM_START + 27, "aux26", },
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[CHANNEL_POSITION_AUX27] = { SPA_AUDIO_CHANNEL_CUSTOM_START + 28, "aux27", },
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[CHANNEL_POSITION_AUX28] = { SPA_AUDIO_CHANNEL_CUSTOM_START + 29, "aux28", },
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[CHANNEL_POSITION_AUX29] = { SPA_AUDIO_CHANNEL_CUSTOM_START + 30, "aux29", },
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[CHANNEL_POSITION_AUX30] = { SPA_AUDIO_CHANNEL_CUSTOM_START + 31, "aux30", },
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[CHANNEL_POSITION_AUX31] = { SPA_AUDIO_CHANNEL_CUSTOM_START + 32, "aux31", },
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[CHANNEL_POSITION_TOP_CENTER] = { SPA_AUDIO_CHANNEL_TC, "top-center", },
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[CHANNEL_POSITION_TOP_FRONT_LEFT] = { SPA_AUDIO_CHANNEL_TFL, "top-front-left", },
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[CHANNEL_POSITION_TOP_FRONT_RIGHT] = { SPA_AUDIO_CHANNEL_TFR, "top-front-right", },
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[CHANNEL_POSITION_TOP_FRONT_CENTER] = { SPA_AUDIO_CHANNEL_TFC, "top-front-center", },
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[CHANNEL_POSITION_TOP_REAR_LEFT] = { SPA_AUDIO_CHANNEL_TRL, "top-rear-left", },
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[CHANNEL_POSITION_TOP_REAR_RIGHT] = { SPA_AUDIO_CHANNEL_TRR, "top-rear-right", },
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[CHANNEL_POSITION_TOP_REAR_CENTER] = { SPA_AUDIO_CHANNEL_TRC, "top-rear-center", },
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};
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uint32_t format_pa2id(enum sample_format format)
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{
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if (format < 0 || format >= SAMPLE_MAX)
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return SPA_AUDIO_FORMAT_UNKNOWN;
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return audio_formats[format].id;
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}
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const char *format_id2name(uint32_t format)
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{
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int i;
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for (i = 0; spa_type_audio_format[i].name; i++) {
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if (spa_type_audio_format[i].type == format)
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return spa_debug_type_short_name(spa_type_audio_format[i].name);
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}
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return "UNKNOWN";
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}
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uint32_t format_name2id(const char *name)
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{
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int i;
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for (i = 0; spa_type_audio_format[i].name; i++) {
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if (spa_streq(name, spa_debug_type_short_name(spa_type_audio_format[i].name)))
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return spa_type_audio_format[i].type;
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}
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return SPA_AUDIO_CHANNEL_UNKNOWN;
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}
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uint32_t format_paname2id(const char *name, size_t size)
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{
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size_t i;
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for (i = 0; i < SPA_N_ELEMENTS(audio_formats); i++) {
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if (audio_formats[i].name != NULL &&
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strncmp(name, audio_formats[i].name, size) == 0)
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return audio_formats[i].id;
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}
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return SPA_AUDIO_FORMAT_UNKNOWN;
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}
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enum sample_format format_id2pa(uint32_t id)
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{
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size_t i;
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for (i = 0; i < SPA_N_ELEMENTS(audio_formats); i++) {
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if (id == audio_formats[i].id)
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return audio_formats[i].pa;
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}
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return SAMPLE_INVALID;
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}
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const char *format_id2paname(uint32_t id)
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{
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size_t i;
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for (i = 0; i < SPA_N_ELEMENTS(audio_formats); i++) {
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if (id == audio_formats[i].id &&
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audio_formats[i].name != NULL)
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return audio_formats[i].name;
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}
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return "invalid";
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}
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uint32_t sample_spec_frame_size(const struct sample_spec *ss)
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{
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switch (ss->format) {
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case SPA_AUDIO_FORMAT_U8:
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return ss->channels;
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case SPA_AUDIO_FORMAT_S16_LE:
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case SPA_AUDIO_FORMAT_S16_BE:
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case SPA_AUDIO_FORMAT_S16P:
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return 2 * ss->channels;
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case SPA_AUDIO_FORMAT_S24_LE:
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case SPA_AUDIO_FORMAT_S24_BE:
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case SPA_AUDIO_FORMAT_S24P:
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return 3 * ss->channels;
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case SPA_AUDIO_FORMAT_F32_LE:
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case SPA_AUDIO_FORMAT_F32_BE:
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case SPA_AUDIO_FORMAT_F32P:
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case SPA_AUDIO_FORMAT_S32_LE:
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case SPA_AUDIO_FORMAT_S32_BE:
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case SPA_AUDIO_FORMAT_S32P:
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case SPA_AUDIO_FORMAT_S24_32_LE:
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case SPA_AUDIO_FORMAT_S24_32_BE:
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case SPA_AUDIO_FORMAT_S24_32P:
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return 4 * ss->channels;
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default:
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return 0;
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}
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}
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bool sample_spec_valid(const struct sample_spec *ss)
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{
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return (sample_spec_frame_size(ss) > 0 &&
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ss->rate > 0 && ss->rate <= RATE_MAX &&
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ss->channels > 0 && ss->channels <= CHANNELS_MAX);
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}
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uint32_t channel_pa2id(enum channel_position channel)
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{
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if (channel < 0 || (size_t)channel >= SPA_N_ELEMENTS(audio_channels))
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return SPA_AUDIO_CHANNEL_UNKNOWN;
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return audio_channels[channel].channel;
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}
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const char *channel_id2name(uint32_t channel)
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{
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int i;
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for (i = 0; spa_type_audio_channel[i].name; i++) {
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if (spa_type_audio_channel[i].type == channel)
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return spa_debug_type_short_name(spa_type_audio_channel[i].name);
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}
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return "UNK";
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}
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uint32_t channel_name2id(const char *name)
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{
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int i;
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for (i = 0; spa_type_audio_channel[i].name; i++) {
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if (strcmp(name, spa_debug_type_short_name(spa_type_audio_channel[i].name)) == 0)
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return spa_type_audio_channel[i].type;
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}
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return SPA_AUDIO_CHANNEL_UNKNOWN;
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}
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enum channel_position channel_id2pa(uint32_t id, uint32_t *aux)
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{
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size_t i;
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for (i = 0; i < SPA_N_ELEMENTS(audio_channels); i++) {
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if (id == audio_channels[i].channel)
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return i;
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}
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return CHANNEL_POSITION_AUX0 + ((*aux)++ & 31);
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}
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const char *channel_id2paname(uint32_t id, uint32_t *aux)
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{
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size_t i;
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for (i = 0; i < SPA_N_ELEMENTS(audio_channels); i++) {
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if (id == audio_channels[i].channel &&
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audio_channels[i].name != NULL)
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return audio_channels[i].name;
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}
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return audio_channels[CHANNEL_POSITION_AUX0 + ((*aux)++ & 31)].name;
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}
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uint32_t channel_paname2id(const char *name, size_t size)
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{
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size_t i;
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for (i = 0; i < SPA_N_ELEMENTS(audio_channels); i++) {
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if (strncmp(name, audio_channels[i].name, size) == 0)
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return audio_channels[i].channel;
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}
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return SPA_AUDIO_CHANNEL_UNKNOWN;
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}
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void channel_map_to_positions(const struct channel_map *map, uint32_t *pos)
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{
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int i;
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for (i = 0; i < map->channels; i++)
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pos[i] = map->map[i];
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}
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void channel_map_parse(const char *str, struct channel_map *map)
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{
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const char *p = str;
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size_t len;
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if (spa_streq(p, "stereo")) {
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*map = (struct channel_map) {
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.channels = 2,
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.map[0] = SPA_AUDIO_CHANNEL_FL,
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.map[1] = SPA_AUDIO_CHANNEL_FR,
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};
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} else if (spa_streq(p, "surround-21")) {
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*map = (struct channel_map) {
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.channels = 3,
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.map[0] = SPA_AUDIO_CHANNEL_FL,
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.map[1] = SPA_AUDIO_CHANNEL_FR,
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.map[2] = SPA_AUDIO_CHANNEL_LFE,
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};
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} else if (spa_streq(p, "surround-40")) {
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*map = (struct channel_map) {
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.channels = 4,
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.map[0] = SPA_AUDIO_CHANNEL_FL,
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.map[1] = SPA_AUDIO_CHANNEL_FR,
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.map[2] = SPA_AUDIO_CHANNEL_RL,
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.map[3] = SPA_AUDIO_CHANNEL_RR,
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};
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} else if (spa_streq(p, "surround-41")) {
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*map = (struct channel_map) {
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.channels = 5,
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.map[0] = SPA_AUDIO_CHANNEL_FL,
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.map[1] = SPA_AUDIO_CHANNEL_FR,
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.map[2] = SPA_AUDIO_CHANNEL_RL,
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.map[3] = SPA_AUDIO_CHANNEL_RR,
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.map[4] = SPA_AUDIO_CHANNEL_LFE,
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};
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} else if (spa_streq(p, "surround-50")) {
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*map = (struct channel_map) {
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.channels = 5,
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.map[0] = SPA_AUDIO_CHANNEL_FL,
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.map[1] = SPA_AUDIO_CHANNEL_FR,
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.map[2] = SPA_AUDIO_CHANNEL_RL,
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.map[3] = SPA_AUDIO_CHANNEL_RR,
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.map[4] = SPA_AUDIO_CHANNEL_FC,
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};
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} else if (spa_streq(p, "surround-51")) {
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*map = (struct channel_map) {
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.channels = 6,
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.map[0] = SPA_AUDIO_CHANNEL_FL,
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.map[1] = SPA_AUDIO_CHANNEL_FR,
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.map[2] = SPA_AUDIO_CHANNEL_RL,
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.map[3] = SPA_AUDIO_CHANNEL_RR,
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.map[4] = SPA_AUDIO_CHANNEL_FC,
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.map[5] = SPA_AUDIO_CHANNEL_LFE,
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};
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} else if (spa_streq(p, "surround-71")) {
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*map = (struct channel_map) {
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.channels = 8,
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.map[0] = SPA_AUDIO_CHANNEL_FL,
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.map[1] = SPA_AUDIO_CHANNEL_FR,
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.map[2] = SPA_AUDIO_CHANNEL_RL,
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.map[3] = SPA_AUDIO_CHANNEL_RR,
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.map[4] = SPA_AUDIO_CHANNEL_FC,
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.map[5] = SPA_AUDIO_CHANNEL_LFE,
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.map[6] = SPA_AUDIO_CHANNEL_SL,
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.map[7] = SPA_AUDIO_CHANNEL_SR,
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};
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} else {
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map->channels = 0;
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|
while (*p && map->channels < SPA_AUDIO_MAX_CHANNELS) {
|
|
if ((len = strcspn(p, ",")) == 0)
|
|
break;
|
|
map->map[map->channels++] = channel_paname2id(p, len);
|
|
p += len + strspn(p+len, ",");
|
|
}
|
|
}
|
|
}
|
|
|
|
bool channel_map_valid(const struct channel_map *map)
|
|
{
|
|
uint8_t i;
|
|
if (map->channels == 0 || map->channels > CHANNELS_MAX)
|
|
return false;
|
|
for (i = 0; i < map->channels; i++)
|
|
if (map->map[i] >= CHANNEL_POSITION_MAX)
|
|
return false;
|
|
return true;
|
|
}
|
|
|
|
|
|
static const char * const encoding_names[] = {
|
|
[ENCODING_ANY] = "ANY",
|
|
[ENCODING_PCM] = "PCM",
|
|
[ENCODING_AC3_IEC61937] = "AC3-IEC61937",
|
|
[ENCODING_EAC3_IEC61937] = "EAC3-IEC61937",
|
|
[ENCODING_MPEG_IEC61937] = "MPEG-IEC61937",
|
|
[ENCODING_DTS_IEC61937] = "DTS-IEC61937",
|
|
[ENCODING_MPEG2_AAC_IEC61937] = "MPEG2-AAC-IEC61937",
|
|
[ENCODING_TRUEHD_IEC61937] = "TRUEHD-IEC61937",
|
|
[ENCODING_DTSHD_IEC61937] = "DTSHD-IEC61937",
|
|
};
|
|
|
|
const char *format_encoding2name(enum encoding enc)
|
|
{
|
|
if (enc >= 0 && enc < (int)SPA_N_ELEMENTS(encoding_names) &&
|
|
encoding_names[enc] != NULL)
|
|
return encoding_names[enc];
|
|
return "INVALID";
|
|
}
|
|
|
|
int format_parse_param(const struct spa_pod *param, struct sample_spec *ss, struct channel_map *map)
|
|
{
|
|
struct spa_audio_info info = { 0 };
|
|
uint32_t i;
|
|
|
|
if (spa_format_parse(param, &info.media_type, &info.media_subtype) < 0)
|
|
return -ENOTSUP;
|
|
|
|
if (info.media_type != SPA_MEDIA_TYPE_audio ||
|
|
info.media_subtype != SPA_MEDIA_SUBTYPE_raw ||
|
|
spa_format_audio_raw_parse(param, &info.info.raw) < 0) {
|
|
return -ENOTSUP;
|
|
}
|
|
if (ss) {
|
|
ss->format = info.info.raw.format;
|
|
ss->rate = info.info.raw.rate;
|
|
ss->channels = info.info.raw.channels;
|
|
}
|
|
if (map) {
|
|
map->channels = info.info.raw.channels;
|
|
for (i = 0; i < map->channels; i++)
|
|
map->map[i] = info.info.raw.position[i];
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
const struct spa_pod *format_build_param(struct spa_pod_builder *b, uint32_t id,
|
|
struct sample_spec *spec, struct channel_map *map)
|
|
{
|
|
struct spa_audio_info_raw info;
|
|
|
|
info = SPA_AUDIO_INFO_RAW_INIT(
|
|
.format = spec->format,
|
|
.channels = spec->channels,
|
|
.rate = spec->rate);
|
|
if (map)
|
|
channel_map_to_positions(map, info.position);
|
|
|
|
return spa_format_audio_raw_build(b, id, &info);
|
|
}
|
|
|
|
int format_info_from_spec(struct format_info *info, struct sample_spec *ss,
|
|
struct channel_map *map)
|
|
{
|
|
spa_zero(*info);
|
|
info->encoding = ENCODING_PCM;
|
|
if ((info->props = pw_properties_new(NULL, NULL)) == NULL)
|
|
return -errno;
|
|
|
|
pw_properties_setf(info->props, "format.sample_format", "\"%s\"",
|
|
format_id2paname(ss->format));
|
|
pw_properties_setf(info->props, "format.rate", "%d", ss->rate);
|
|
pw_properties_setf(info->props, "format.channels", "%d", ss->channels);
|
|
if (map && map->channels == ss->channels) {
|
|
char chmap[1024] = "";
|
|
int i, o;
|
|
uint32_t aux = 0;
|
|
|
|
for (i = 0, o = 0; i < map->channels; i++) {
|
|
o += snprintf(chmap+o, sizeof(chmap)-o, "%s%s", i == 0 ? "" : ",",
|
|
channel_id2paname(map->map[i], &aux));
|
|
}
|
|
pw_properties_setf(info->props, "format.channel_map", "\"%s\"", chmap);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
const struct spa_pod *format_info_build_param(struct spa_pod_builder *b, uint32_t id,
|
|
struct format_info *info)
|
|
{
|
|
const char *str, *val;
|
|
struct sample_spec ss;
|
|
struct channel_map map, *pmap = NULL;
|
|
struct spa_json it[2];
|
|
float f;
|
|
int len;
|
|
|
|
spa_zero(ss);
|
|
spa_zero(map);
|
|
|
|
if (info->encoding != ENCODING_PCM)
|
|
return NULL;
|
|
|
|
if ((str = pw_properties_get(info->props, "format.sample_format")) == NULL)
|
|
return NULL;
|
|
|
|
spa_json_init(&it[0], str, strlen(str));
|
|
if ((len = spa_json_next(&it[0], &val)) <= 0)
|
|
return NULL;
|
|
if (spa_json_is_string(val, len)) {
|
|
ss.format = format_paname2id(val+1, len-2);
|
|
if (ss.format == SPA_AUDIO_FORMAT_UNKNOWN)
|
|
return NULL;
|
|
} else if (spa_json_is_array(val, len)) {
|
|
return NULL;
|
|
} else
|
|
return NULL;
|
|
|
|
if ((str = pw_properties_get(info->props, "format.rate")) == NULL)
|
|
return NULL;
|
|
|
|
spa_json_init(&it[0], str, strlen(str));
|
|
if ((len = spa_json_next(&it[0], &val)) <= 0)
|
|
return NULL;
|
|
if (spa_json_is_float(val, len)) {
|
|
if (spa_json_parse_float(val, len, &f) <= 0)
|
|
return NULL;
|
|
ss.rate = f;
|
|
} else if (spa_json_is_array(val, len)) {
|
|
return NULL;
|
|
} else if (spa_json_is_object(val, len)) {
|
|
return NULL;
|
|
} else
|
|
return NULL;
|
|
|
|
if ((str = pw_properties_get(info->props, "format.channels")) == NULL)
|
|
return NULL;
|
|
|
|
spa_json_init(&it[0], str, strlen(str));
|
|
if ((len = spa_json_next(&it[0], &val)) <= 0)
|
|
return NULL;
|
|
if (spa_json_is_float(val, len)) {
|
|
if (spa_json_parse_float(val, len, &f) <= 0)
|
|
return NULL;
|
|
ss.channels = f;
|
|
} else if (spa_json_is_array(val, len)) {
|
|
return NULL;
|
|
} else if (spa_json_is_object(val, len)) {
|
|
return NULL;
|
|
} else
|
|
return NULL;
|
|
|
|
if ((str = pw_properties_get(info->props, "format.channel_map")) != NULL) {
|
|
spa_json_init(&it[0], str, strlen(str));
|
|
if ((len = spa_json_next(&it[0], &val)) <= 0)
|
|
return NULL;
|
|
if (!spa_json_is_string(val, len))
|
|
return NULL;
|
|
while ((*str == '\"' || *str == ',') &&
|
|
(len = strcspn(++str, "\",")) > 0) {
|
|
map.map[map.channels++] = channel_paname2id(str, len);
|
|
str += len;
|
|
}
|
|
if (map.channels == ss.channels)
|
|
pmap = ↦
|
|
}
|
|
return format_build_param(b, id, &ss, pmap);
|
|
}
|