- ff_add_format(&formats, AV_SAMPLE_FMT_DBL);
- ff_set_common_formats(ctx, formats);
- ff_add_channel_layout(&layout, AV_CH_LAYOUT_STEREO);
- ff_set_common_channel_layouts(ctx, layout);
+ if ((ret = ff_add_format (&formats, AV_SAMPLE_FMT_DBL )) < 0 ||
+ (ret = ff_set_common_formats (ctx , formats )) < 0 ||
+ (ret = ff_add_channel_layout (&layout , AV_CH_LAYOUT_STEREO)) < 0 ||
+ (ret = ff_set_common_channel_layouts (ctx , layout )) < 0)
+ return ret;