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avdevice/alldevices: stop using deprecated linked list API

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Signed-off-by: James Almer <jamrial@gmail.com>
This commit is contained in:
James Almer
2020-10-09 11:58:37 -03:00
parent c4a3dbe726
commit ac36080b2d
2 changed files with 72 additions and 46 deletions
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72
libavdevice/alldevices.c
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@@ -67,3 +67,75 @@ void avdevice_register_all(void)
{
avpriv_register_devices(outdev_list, indev_list);
}
static void *next_input(const AVInputFormat *prev, AVClassCategory c2)
{
const AVClass *pc;
const AVClassCategory c1 = AV_CLASS_CATEGORY_DEVICE_INPUT;
AVClassCategory category = AV_CLASS_CATEGORY_NA;
const AVInputFormat *fmt = NULL;
int i = 0;
while (prev && (fmt = indev_list[i])) {
i++;
if (prev == fmt)
break;
}
do {
fmt = indev_list[i++];
if (!fmt)
break;
pc = fmt->priv_class;
if (!pc)
continue;
category = pc->category;
} while (category != c1 && category != c2);
return (AVInputFormat *)fmt;
}
static void *next_output(const AVOutputFormat *prev, AVClassCategory c2)
{
const AVClass *pc;
const AVClassCategory c1 = AV_CLASS_CATEGORY_DEVICE_OUTPUT;
AVClassCategory category = AV_CLASS_CATEGORY_NA;
const AVOutputFormat *fmt = NULL;
int i = 0;
while (prev && (fmt = outdev_list[i])) {
i++;
if (prev == fmt)
break;
}
do {
fmt = outdev_list[i++];
if (!fmt)
break;
pc = fmt->priv_class;
if (!pc)
continue;
category = pc->category;
} while (category != c1 && category != c2);
return (AVOutputFormat *)fmt;
}
AVInputFormat *av_input_audio_device_next(AVInputFormat *d)
{
return next_input(d, AV_CLASS_CATEGORY_DEVICE_AUDIO_INPUT);
}
AVInputFormat *av_input_video_device_next(AVInputFormat *d)
{
return next_input(d, AV_CLASS_CATEGORY_DEVICE_VIDEO_INPUT);
}
AVOutputFormat *av_output_audio_device_next(AVOutputFormat *d)
{
return next_output(d, AV_CLASS_CATEGORY_DEVICE_AUDIO_OUTPUT);
}
AVOutputFormat *av_output_video_device_next(AVOutputFormat *d)
{
return next_output(d, AV_CLASS_CATEGORY_DEVICE_VIDEO_OUTPUT);
}