int avfilter_default_query_formats(AVFilterContext *ctx)
{
avfilter_set_common_pixel_formats(ctx, avfilter_make_all_formats(AVMEDIA_TYPE_VIDEO));
avfilter_set_common_sample_formats(ctx, avfilter_make_all_formats(AVMEDIA_TYPE_AUDIO));
avfilter_set_common_channel_layouts(ctx, avfilter_make_all_channel_layouts());
avfilter_set_common_packing_formats(ctx, avfilter_make_all_packing_formats());
return 0;
}
static int query_formats(AVFilterContext *ctx)
{
AVFilterFormats *formats = NULL;
AConvertContext *aconvert = ctx->priv;
AVFilterLink *inlink = ctx->inputs[0];
AVFilterLink *outlink = ctx->outputs[0];
avfilter_formats_ref(avfilter_make_all_formats(AVMEDIA_TYPE_AUDIO),
&inlink->out_formats);
if (aconvert->out_sample_fmt != AV_SAMPLE_FMT_NONE) {
formats = NULL;
avfilter_add_format(&formats, aconvert->out_sample_fmt);
avfilter_formats_ref(formats, &outlink->in_formats);
} else
avfilter_formats_ref(avfilter_make_all_formats(AVMEDIA_TYPE_AUDIO),
&outlink->in_formats);
avfilter_formats_ref(avfilter_make_all_channel_layouts(),
&inlink->out_chlayouts);
if (aconvert->out_chlayout != 0) {
formats = NULL;
avfilter_add_format(&formats, aconvert->out_chlayout);
avfilter_formats_ref(formats, &outlink->in_chlayouts);
} else
avfilter_formats_ref(avfilter_make_all_channel_layouts(),
&outlink->in_chlayouts);
avfilter_formats_ref(avfilter_make_all_packing_formats(),
&inlink->out_packing);
if (aconvert->out_packing_fmt != -1) {
formats = NULL;
avfilter_add_format(&formats, aconvert->out_packing_fmt);
avfilter_formats_ref(formats, &outlink->in_packing);
} else
avfilter_formats_ref(avfilter_make_all_packing_formats(),
&outlink->in_packing);
return 0;
}
static av_cold int init(AVFilterContext *ctx, const char *args, void *opaque)
{
AFormatContext * const aformat = ctx->priv;
char *fmts_str = NULL, *fmt_str, *ptr = NULL;
int64_t fmt;
int ret;
if (!args)
goto arg_fail;
#define ADD_FORMATS(all_formats, fmt_name, fmt_type, fmts_list) \
fmts_str = av_get_token(&args, ":"); \
if (!fmts_str || !*fmts_str) \
goto arg_fail; \
if (!strcmp(fmts_str, "all")) { \
aformat->fmts_list = all_formats; \
} else { \
for (fmt_str = fmts_str; \
fmt_str = strtok_r(fmt_str, ",", &ptr); fmt_str = NULL) { \
if ((ret = ff_parse_##fmt_name((fmt_type *)&fmt, \
fmt_str, ctx)) < 0) { \
av_freep(&fmts_str); \
return ret; \
} \
avfilter_add_format(&aformat->fmts_list, fmt); \
} \
} \
av_freep(&fmts_str); \
if (*args) \
args++;
ADD_FORMATS(avfilter_make_all_formats(AVMEDIA_TYPE_AUDIO), sample_format, int, formats);
ADD_FORMATS(avfilter_make_all_channel_layouts(), channel_layout, int64_t, chlayouts);
ADD_FORMATS(avfilter_make_all_packing_formats(), packing_format, int, packing);
return 0;
arg_fail:
av_log(ctx, AV_LOG_ERROR, "Invalid arguments, they must be of the form "
"sample_fmts:channel_layouts:packing_fmts\n");
av_freep(&fmts_str);
return AVERROR(EINVAL);
}
static int query_formats(AVFilterContext *ctx)
{
AVFilterFormats *formats = NULL;
avfilter_add_format(&formats, AV_SAMPLE_FMT_S16);
if (!formats)
return AVERROR(ENOMEM);
avfilter_set_common_sample_formats(ctx, formats);
formats = avfilter_make_all_channel_layouts();
if (!formats)
return AVERROR(ENOMEM);
avfilter_set_common_channel_layouts(ctx, formats);
formats = avfilter_make_all_packing_formats();
if (!formats)
return AVERROR(ENOMEM);
avfilter_set_common_packing_formats(ctx, formats);
return 0;
}
