diff options
author | Lukasz Marek <lukasz.m.luki2@gmail.com> | 2014-08-26 20:30:35 +0200 |
---|---|---|
committer | Lukasz Marek <lukasz.m.luki2@gmail.com> | 2014-11-01 01:02:02 +0100 |
commit | fe72622819d39623d87b68784dba189bfa564546 (patch) | |
tree | 856c15dd1edbff10e359111b4471e0e5afb73f57 /libavdevice/alsa-audio-common.c | |
parent | 7f7facdedaf21e8ef1b030502c431cd9565a3aab (diff) | |
download | ffmpeg-streaming-fe72622819d39623d87b68784dba189bfa564546.zip ffmpeg-streaming-fe72622819d39623d87b68784dba189bfa564546.tar.gz |
lavd/alsa: implement get_device_list callbacks
Signed-off-by: Lukasz Marek <lukasz.m.luki2@gmail.com>
Diffstat (limited to 'libavdevice/alsa-audio-common.c')
-rw-r--r-- | libavdevice/alsa-audio-common.c | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/libavdevice/alsa-audio-common.c b/libavdevice/alsa-audio-common.c index 4e63397..749897f 100644 --- a/libavdevice/alsa-audio-common.c +++ b/libavdevice/alsa-audio-common.c @@ -343,3 +343,55 @@ int ff_alsa_extend_reorder_buf(AlsaData *s, int min_size) s->reorder_buf_size = size; return 0; } + +/* ported from alsa-utils/aplay.c */ +int ff_alsa_get_device_list(AVDeviceInfoList *device_list, snd_pcm_stream_t stream_type) +{ + int ret = 0; + void **hints, **n; + char *name = NULL, *descr = NULL, *io = NULL, *tmp; + AVDeviceInfo *new_device = NULL; + const char *filter = stream_type == SND_PCM_STREAM_PLAYBACK ? "Output" : "Input"; + + if (snd_device_name_hint(-1, "pcm", &hints) < 0) + return AVERROR_EXTERNAL; + n = hints; + while (*n && !ret) { + name = snd_device_name_get_hint(*n, "NAME"); + descr = snd_device_name_get_hint(*n, "DESC"); + io = snd_device_name_get_hint(*n, "IOID"); + if (!io || !strcmp(io, filter)) { + new_device = av_mallocz(sizeof(AVDeviceInfo)); + if (!new_device) { + ret = AVERROR(ENOMEM); + goto fail; + } + new_device->device_name = av_strdup(name); + if ((tmp = strrchr(descr, '\n')) && tmp[1]) + new_device->device_description = av_strdup(&tmp[1]); + else + new_device->device_description = av_strdup(descr); + if (!new_device->device_description || !new_device->device_name) { + ret = AVERROR(ENOMEM); + goto fail; + } + if ((ret = av_dynarray_add_nofree(&device_list->devices, + &device_list->nb_devices, new_device)) < 0) { + goto fail; + } + new_device = NULL; + } + fail: + free(io); + free(name); + free(descr); + n++; + } + if (new_device) { + av_free(new_device->device_description); + av_free(new_device->device_name); + av_free(new_device); + } + snd_device_name_free_hint(hints); + return ret; +} |