API changes, most recent first:
+2011-06-19 - xxxxxxx - lavfi 2.23.0 - avfilter.h
+ Add layout negotiation fields and helper functions.
+
+ In particular, add in_chlayouts and out_chlayouts to AVFilterLink,
+ and the functions:
+ avfilter_set_common_sample_formats()
+ avfilter_set_common_channel_layouts()
+ avfilter_all_channel_layouts()
+
2011-06-19 - xxxxxxx - lavfi 2.22.0 - AVFilterFormats
Change type of AVFilterFormats.formats from int * to int64_t *,
and update formats handling API accordingly.
priv->is->video_st->codec->pix_fmt, PIX_FMT_NONE
};
- avfilter_set_common_formats(ctx, avfilter_make_format_list(pix_fmts));
+ avfilter_set_common_pixel_formats(ctx, avfilter_make_format_list(pix_fmts));
return 0;
}
if (link->out_formats)
avfilter_formats_changeref(&link->out_formats,
&filt->outputs[filt_dstpad_idx]->out_formats);
+ if (link->out_chlayouts)
+ avfilter_formats_changeref(&link->out_chlayouts,
+ &filt->outputs[filt_dstpad_idx]->out_chlayouts);
return 0;
}
#include "libavutil/samplefmt.h"
#define LIBAVFILTER_VERSION_MAJOR 2
-#define LIBAVFILTER_VERSION_MINOR 22
+#define LIBAVFILTER_VERSION_MINOR 23
#define LIBAVFILTER_VERSION_MICRO 0
#define LIBAVFILTER_VERSION_INT AV_VERSION_INT(LIBAVFILTER_VERSION_MAJOR, \
AVFilterFormats *avfilter_all_formats(enum AVMediaType type);
/**
+ * Return a list of all channel layouts supported by FFmpeg.
+ */
+AVFilterFormats *avfilter_all_channel_layouts(void);
+
+/**
* Return a format list which contains the intersection of the formats of
* a and b. Also, all the references of a, all the references of b, and
* a and b themselves will be deallocated.
int64_t channel_layout, int planar);
/**
- * A helper for query_formats() which sets all links to the same list of
- * formats. If there are no links hooked to this filter, the list of formats is
- * freed.
+ * Helpers for query_formats() which set all links to the same list of
+ * formats/layouts. If there are no links hooked to this filter, the list
+ * of formats is freed.
*/
-void avfilter_set_common_formats(AVFilterContext *ctx, AVFilterFormats *formats);
+void avfilter_set_common_pixel_formats(AVFilterContext *ctx, AVFilterFormats *formats);
+void avfilter_set_common_sample_formats(AVFilterContext *ctx, AVFilterFormats *formats);
+void avfilter_set_common_channel_layouts(AVFilterContext *ctx, AVFilterFormats *formats);
/** Default handler for query_formats() */
int avfilter_default_query_formats(AVFilterContext *ctx);
void (*uninit)(AVFilterContext *ctx);
/**
- * Queries formats supported by the filter and its pads, and sets the
- * in_formats for links connected to its output pads, and out_formats
- * for links connected to its input pads.
+ * Queries formats/layouts supported by the filter and its pads, and sets
+ * the in_formats/in_chlayouts for links connected to its output pads,
+ * and out_formats/out_chlayouts for links connected to its input pads.
*
* @return zero on success, a negative value corresponding to an
* AVERROR code otherwise
int format; ///< agreed upon media format
/**
- * Lists of formats supported by the input and output filters respectively.
- * These lists are used for negotiating the format to actually be used,
- * which will be loaded into the format member, above, when chosen.
+ * Lists of formats and channel layouts supported by the input and output
+ * filters respectively. These lists are used for negotiating the format
+ * to actually be used, which will be loaded into the format and
+ * channel_layout members, above, when chosen.
+ *
*/
AVFilterFormats *in_formats;
AVFilterFormats *out_formats;
+ AVFilterFormats *in_chlayouts;
+ AVFilterFormats *out_chlayouts;
+
/**
* The buffer reference currently being sent across the link by the source
* filter. This is used internally by the filter system to allow
link->in_formats->format_count = 1;
link->format = link->in_formats->formats[0];
-
avfilter_formats_unref(&link->in_formats);
avfilter_formats_unref(&link->out_formats);
+
+ if (link->type == AVMEDIA_TYPE_AUDIO) {
+ link->in_chlayouts->format_count = 1;
+ link->channel_layout = link->in_chlayouts->formats[0];
+ avfilter_formats_unref(&link->in_chlayouts);
+ avfilter_formats_unref(&link->out_chlayouts);
+ }
+
}
static void pick_formats(AVFilterGraph *graph)
return 0;
}
-/**
- * A helper for query_formats() which sets all links to the same list of
- * formats. If there are no links hooked to this filter, the list of formats is
- * freed.
- *
- * FIXME: this will need changed for filters with a mix of pad types
- * (video + audio, etc)
- */
-void avfilter_set_common_formats(AVFilterContext *ctx, AVFilterFormats *formats)
+static void set_common_formats(AVFilterContext *ctx, AVFilterFormats *fmts,
+ enum AVMediaType type, int offin, int offout)
{
- int count = 0, i;
-
- for (i = 0; i < ctx->input_count; i++) {
- if (ctx->inputs[i]) {
- avfilter_formats_ref(formats, &ctx->inputs[i]->out_formats);
- count++;
- }
- }
- for (i = 0; i < ctx->output_count; i++) {
- if (ctx->outputs[i]) {
- avfilter_formats_ref(formats, &ctx->outputs[i]->in_formats);
- count++;
- }
+ int i;
+ for (i = 0; i < ctx->input_count; i++)
+ if (ctx->inputs[i] && ctx->inputs[i]->type == type)
+ avfilter_formats_ref(fmts,
+ (AVFilterFormats**)((void*)ctx->inputs[i]+offout));
+
+ for (i = 0; i < ctx->output_count; i++)
+ if (ctx->outputs[i] && ctx->outputs[i]->type == type)
+ avfilter_formats_ref(fmts,
+ (AVFilterFormats**)((void*)ctx->outputs[i]+offin));
+
+ if (!fmts->refcount) {
+ av_free(fmts->formats);
+ av_free(fmts->refs);
+ av_free(fmts);
}
+}
- if (!count) {
- av_free(formats->formats);
- av_free(formats->refs);
- av_free(formats);
- }
+void avfilter_set_common_pixel_formats(AVFilterContext *ctx, AVFilterFormats *formats)
+{
+ set_common_formats(ctx, formats, AVMEDIA_TYPE_VIDEO,
+ offsetof(AVFilterLink, in_formats),
+ offsetof(AVFilterLink, out_formats));
+}
+
+void avfilter_set_common_sample_formats(AVFilterContext *ctx, AVFilterFormats *formats)
+{
+ set_common_formats(ctx, formats, AVMEDIA_TYPE_AUDIO,
+ offsetof(AVFilterLink, in_formats),
+ offsetof(AVFilterLink, out_formats));
+}
+
+void avfilter_set_common_channel_layouts(AVFilterContext *ctx, AVFilterFormats *formats)
+{
+ set_common_formats(ctx, formats, AVMEDIA_TYPE_AUDIO,
+ offsetof(AVFilterLink, in_chlayouts),
+ offsetof(AVFilterLink, out_chlayouts));
}
int avfilter_default_query_formats(AVFilterContext *ctx)
{
- enum AVMediaType type = ctx->inputs && ctx->inputs [0] ? ctx->inputs [0]->type :
- ctx->outputs && ctx->outputs[0] ? ctx->outputs[0]->type :
- AVMEDIA_TYPE_VIDEO;
+ avfilter_set_common_pixel_formats(ctx, avfilter_all_formats(AVMEDIA_TYPE_VIDEO));
+ avfilter_set_common_sample_formats(ctx, avfilter_all_formats(AVMEDIA_TYPE_AUDIO));
+ avfilter_set_common_channel_layouts(ctx, avfilter_all_channel_layouts());
- avfilter_set_common_formats(ctx, avfilter_all_formats(type));
return 0;
}
*/
#include "libavutil/pixdesc.h"
+#include "libavutil/audioconvert.h"
#include "avfilter.h"
/**
return ret;
}
+AVFilterFormats *avfilter_all_channel_layouts(void)
+{
+ static int64_t chlayouts[] = {
+ AV_CH_LAYOUT_MONO,
+ AV_CH_LAYOUT_STEREO,
+ AV_CH_LAYOUT_4POINT0,
+ AV_CH_LAYOUT_QUAD,
+ AV_CH_LAYOUT_5POINT0,
+ AV_CH_LAYOUT_5POINT0_BACK,
+ AV_CH_LAYOUT_5POINT1,
+ AV_CH_LAYOUT_5POINT1_BACK,
+ AV_CH_LAYOUT_5POINT1|AV_CH_LAYOUT_STEREO_DOWNMIX,
+ AV_CH_LAYOUT_7POINT1,
+ AV_CH_LAYOUT_7POINT1_WIDE,
+ AV_CH_LAYOUT_7POINT1|AV_CH_LAYOUT_STEREO_DOWNMIX,
+ -1,
+ };
+
+ return avfilter_make_format64_list(chlayouts);
+}
+
void avfilter_formats_ref(AVFilterFormats *f, AVFilterFormats **ref)
{
*ref = f;
PIX_FMT_NONE
};
- avfilter_set_common_formats(ctx, avfilter_make_format_list(pix_fmts));
+ avfilter_set_common_pixel_formats(ctx, avfilter_make_format_list(pix_fmts));
return 0;
}
PIX_FMT_NONE
};
- avfilter_set_common_formats(ctx, avfilter_make_format_list(pix_fmts));
+ avfilter_set_common_pixel_formats(ctx, avfilter_make_format_list(pix_fmts));
return 0;
}
PIX_FMT_NONE
};
- avfilter_set_common_formats(ctx, avfilter_make_format_list(pix_fmts));
+ avfilter_set_common_pixel_formats(ctx, avfilter_make_format_list(pix_fmts));
return 0;
}
PIX_FMT_NONE
};
- avfilter_set_common_formats(ctx, avfilter_make_format_list(pix_fmts));
+ avfilter_set_common_pixel_formats(ctx, avfilter_make_format_list(pix_fmts));
return 0;
}
PIX_FMT_NONE
};
- avfilter_set_common_formats(ctx, avfilter_make_format_list(pix_fmts));
+ avfilter_set_common_pixel_formats(ctx, avfilter_make_format_list(pix_fmts));
return 0;
}
PIX_FMT_NONE
};
- avfilter_set_common_formats(ctx, avfilter_make_format_list(pix_fmts));
+ avfilter_set_common_pixel_formats(ctx, avfilter_make_format_list(pix_fmts));
return 0;
}
#if CONFIG_FORMAT_FILTER
static int query_formats_format(AVFilterContext *ctx)
{
- avfilter_set_common_formats(ctx, make_format_list(ctx->priv, 1));
+ avfilter_set_common_pixel_formats(ctx, make_format_list(ctx->priv, 1));
return 0;
}
#if CONFIG_NOFORMAT_FILTER
static int query_formats_noformat(AVFilterContext *ctx)
{
- avfilter_set_common_formats(ctx, make_format_list(ctx->priv, 0));
+ avfilter_set_common_pixel_formats(ctx, make_format_list(ctx->priv, 0));
return 0;
}
if (!formats)
return AVERROR(ENOMEM);
- avfilter_set_common_formats(ctx, formats);
+ avfilter_set_common_pixel_formats(ctx, formats);
return 0;
}
PIX_FMT_NONE
};
- avfilter_set_common_formats(ctx, avfilter_make_format_list(pix_fmts));
+ avfilter_set_common_pixel_formats(ctx, avfilter_make_format_list(pix_fmts));
return 0;
}
PIX_FMT_NONE
};
- avfilter_set_common_formats(ctx, avfilter_make_format_list(pix_fmts));
+ avfilter_set_common_pixel_formats(ctx, avfilter_make_format_list(pix_fmts));
return 0;
}
PIX_FMT_YUV420P, PIX_FMT_YUV422P, PIX_FMT_YUV411P, PIX_FMT_NONE
};
- avfilter_set_common_formats(ctx, avfilter_make_format_list(pix_fmts));
+ avfilter_set_common_pixel_formats(ctx, avfilter_make_format_list(pix_fmts));
return 0;
}
PIX_FMT_BGR24, PIX_FMT_BGRA, PIX_FMT_GRAY8, PIX_FMT_NONE
};
- avfilter_set_common_formats(ctx, avfilter_make_format_list(pix_fmts));
+ avfilter_set_common_pixel_formats(ctx, avfilter_make_format_list(pix_fmts));
return 0;
}
enum PixelFormat *pix_fmts = lut->is_rgb ? rgb_pix_fmts :
lut->is_yuv ? yuv_pix_fmts : all_pix_fmts;
- avfilter_set_common_formats(ctx, avfilter_make_format_list(pix_fmts));
+ avfilter_set_common_pixel_formats(ctx, avfilter_make_format_list(pix_fmts));
return 0;
}
}
//We assume all allowed input formats are also allowed output formats
- avfilter_set_common_formats(ctx, avfmts);
+ avfilter_set_common_pixel_formats(ctx, avfmts);
return 0;
}
PIX_FMT_NONE
};
- avfilter_set_common_formats(ctx, avfilter_make_format_list(pix_fmts));
+ avfilter_set_common_pixel_formats(ctx, avfilter_make_format_list(pix_fmts));
return 0;
}
PIX_FMT_NONE
};
- avfilter_set_common_formats(ctx, avfilter_make_format_list(pix_fmts));
+ avfilter_set_common_pixel_formats(ctx, avfilter_make_format_list(pix_fmts));
return 0;
}
PIX_FMT_YUVJ444P, PIX_FMT_YUVJ440P, PIX_FMT_NONE
};
- avfilter_set_common_formats(ctx, avfilter_make_format_list(pix_fmts));
+ avfilter_set_common_pixel_formats(ctx, avfilter_make_format_list(pix_fmts));
return 0;
}
PIX_FMT_NONE
};
- avfilter_set_common_formats(ctx, avfilter_make_format_list(pix_fmts));
+ avfilter_set_common_pixel_formats(ctx, avfilter_make_format_list(pix_fmts));
return 0;
}
{
BufferSinkContext *buf = ctx->priv;
- avfilter_set_common_formats(ctx, avfilter_make_format_list(buf->pix_fmts));
+ avfilter_set_common_pixel_formats(ctx, avfilter_make_format_list(buf->pix_fmts));
return 0;
}
BufferSourceContext *c = ctx->priv;
enum PixelFormat pix_fmts[] = { c->pix_fmt, PIX_FMT_NONE };
- avfilter_set_common_formats(ctx, avfilter_make_format_list(pix_fmts));
+ avfilter_set_common_pixel_formats(ctx, avfilter_make_format_list(pix_fmts));
return 0;
}
PIX_FMT_NONE
};
- avfilter_set_common_formats(ctx, avfilter_make_format_list(pix_fmts));
+ avfilter_set_common_pixel_formats(ctx, avfilter_make_format_list(pix_fmts));
return 0;
}
MovieContext *movie = ctx->priv;
enum PixelFormat pix_fmts[] = { movie->codec_ctx->pix_fmt, PIX_FMT_NONE };
- avfilter_set_common_formats(ctx, avfilter_make_format_list(pix_fmts));
+ avfilter_set_common_pixel_formats(ctx, avfilter_make_format_list(pix_fmts));
return 0;
}