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treewide: access the position information using helpers

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Make sure we don't access out of bounds and that we use the helpers
wherever we can to access the position information.
This commit is contained in:
Wim Taymans 2025-10-21 13:06:25 +02:00
parent 8bbca3b8f3
commit 818d1435ce
25 changed files with 155 additions and 114 deletions
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13
src/modules/module-protocol-pulse/format.c
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@ -348,9 +348,9 @@ uint32_t channel_paname2id(const char *name, size_t size)
}
void channel_map_to_positions(const struct channel_map *map, uint32_t *pos)
void channel_map_to_positions(const struct channel_map *map, uint32_t *pos, uint32_t max_pos)
{
uint32_t i, channels = SPA_MIN(map->channels, SPA_AUDIO_MAX_CHANNELS);
uint32_t i, channels = SPA_MIN(map->channels, max_pos);
for (i = 0; i < channels; i++)
pos[i] = map->map[i];
}
@ -535,8 +535,7 @@ int format_parse_param(const struct spa_pod *param, bool collect,
info.info.raw.rate = 48000;
if (info.info.raw.format == 0 ||
info.info.raw.rate == 0 ||
info.info.raw.channels == 0 ||
info.info.raw.channels > SPA_N_ELEMENTS(info.info.raw.position))
info.info.raw.channels == 0)
return -ENOTSUP;
}
break;
@ -586,7 +585,7 @@ int format_parse_param(const struct spa_pod *param, bool collect,
if (info.info.raw.channels) {
map->channels = SPA_MIN(info.info.raw.channels, CHANNELS_MAX);
for (i = 0; i < map->channels; i++)
map->map[i] = info.info.raw.position[i];
map->map[i] = spa_format_audio_raw_get_position(&info.info.raw, i);
}
}
return 0;
@ -634,8 +633,8 @@ const struct spa_pod *format_build_param(struct spa_pod_builder *b, uint32_t id,
SPA_FORMAT_AUDIO_channels, SPA_POD_Int(spec->channels), 0);
if (map && map->channels == spec->channels) {
uint32_t positions[SPA_AUDIO_MAX_CHANNELS];
channel_map_to_positions(map, positions);
uint32_t positions[spec->channels];
channel_map_to_positions(map, positions, spec->channels);
spa_pod_builder_add(b, SPA_FORMAT_AUDIO_position,
SPA_POD_Array(sizeof(uint32_t), SPA_TYPE_Id,
spec->channels, positions), 0);