Merge remote-tracking branch 'cigaes/master'

* cigaes/master:
  lavc: do not init frame with guessed layout.
  lavfi/af_atempo: simplify request_frame loop.
  lavfi/af_asetnsamples: simplify request_frame loop.
  lavfi/f_ebur128: remove request_frame hack.
  lavfi/vf_tile: simplify request_frame loop.
  lavfi: reindent after last commit.
  lavfi: loop on request_frame if necessary.
Merged-by: Michael Niedermayer <michaelni@gmx.at>

libavcodec/utils.c

@@ -651,8 +651,6 @@ int ff_init_buffer_info(AVCodecContext *avctx, AVFrame *frame)
                            avctx->channels);
                     return AVERROR(ENOSYS);
                 }
-
-                frame->channel_layout = av_get_default_channel_layout(avctx->channels);
             }
         }
         av_frame_set_channels(frame, avctx->channels);

libavfilter/af_asetnsamples.c

@@ -38,7 +38,6 @@ typedef struct {
     int nb_out_samples;  ///< how many samples to output
     AVAudioFifo *fifo;   ///< samples are queued here
     int64_t next_out_pts;
-    int req_fullfilled;
     int pad;
 } ASNSContext;
 
@@ -86,6 +85,7 @@ static int config_props_output(AVFilterLink *outlink)
     asns->fifo = av_audio_fifo_alloc(outlink->format, nb_channels, asns->nb_out_samples);
     if (!asns->fifo)
         return AVERROR(ENOMEM);
+    outlink->flags |= FF_LINK_FLAG_REQUEST_LOOP;
 
     return 0;
 }
@@ -128,7 +128,6 @@ static int push_samples(AVFilterLink *outlink)
     ret = ff_filter_frame(outlink, outsamples);
     if (ret < 0)
         return ret;
-    asns->req_fullfilled = 1;
     return nb_out_samples;
 }
 
@@ -161,15 +160,10 @@ static int filter_frame(AVFilterLink *inlink, AVFrame *insamples)
 
 static int request_frame(AVFilterLink *outlink)
 {
-    ASNSContext *asns = outlink->src->priv;
     AVFilterLink *inlink = outlink->src->inputs[0];
     int ret;
 
-    asns->req_fullfilled = 0;
-    do {
-        ret = ff_request_frame(inlink);
-    } while (!asns->req_fullfilled && ret >= 0);
-
+    ret = ff_request_frame(inlink);
     if (ret == AVERROR_EOF) {
         ret = push_samples(outlink);
         return ret < 0 ? ret : ret > 0 ? 0 : AVERROR_EOF;

libavfilter/af_atempo.c

@@ -139,7 +139,6 @@ typedef struct {
     FFTSample *correlation;
 
     // for managing AVFilterPad.request_frame and AVFilterPad.filter_frame
-    int request_fulfilled;
     AVFrame *dst_buffer;
     uint8_t *dst;
     uint8_t *dst_end;
@@ -181,7 +180,6 @@ static void yae_clear(ATempoContext *atempo)
     atempo->dst     = NULL;
     atempo->dst_end = NULL;
 
-    atempo->request_fulfilled = 0;
     atempo->nsamples_in       = 0;
     atempo->nsamples_out      = 0;
 }
@@ -1017,6 +1015,8 @@ static int config_props(AVFilterLink *inlink)
     int sample_rate = (int)inlink->sample_rate;
     int channels = av_get_channel_layout_nb_channels(inlink->channel_layout);
 
+    ctx->outputs[0]->flags |= FF_LINK_FLAG_REQUEST_LOOP;
+
     return yae_reset(atempo, format, sample_rate, channels);
 }
 
@@ -1074,7 +1074,6 @@ static int filter_frame(AVFilterLink *inlink, AVFrame *src_buffer)
             ret = push_samples(atempo, outlink, n_out);
             if (ret < 0)
                 goto end;
-            atempo->request_fulfilled = 1;
         }
     }
 
@@ -1090,11 +1089,7 @@ static int request_frame(AVFilterLink *outlink)
     ATempoContext *atempo = ctx->priv;
     int ret;
 
-    atempo->request_fulfilled = 0;
-    do {
-        ret = ff_request_frame(ctx->inputs[0]);
-    }
-    while (!atempo->request_fulfilled && ret >= 0);
+    ret = ff_request_frame(ctx->inputs[0]);
 
     if (ret == AVERROR_EOF) {
         // flush the filter:

libavfilter/avfilter.c

@@ -323,17 +323,27 @@ int ff_request_frame(AVFilterLink *link)
 
     if (link->closed)
         return AVERROR_EOF;
-    if (link->srcpad->request_frame)
-        ret = link->srcpad->request_frame(link);
-    else if (link->src->inputs[0])
-        ret = ff_request_frame(link->src->inputs[0]);
-    if (ret == AVERROR_EOF && link->partial_buf) {
-        AVFrame *pbuf = link->partial_buf;
-        link->partial_buf = NULL;
-        ret = ff_filter_frame_framed(link, pbuf);
+    av_assert0(!link->frame_requested);
+    link->frame_requested = 1;
+    while (link->frame_requested) {
+        if (link->srcpad->request_frame)
+            ret = link->srcpad->request_frame(link);
+        else if (link->src->inputs[0])
+            ret = ff_request_frame(link->src->inputs[0]);
+        if (ret == AVERROR_EOF && link->partial_buf) {
+            AVFrame *pbuf = link->partial_buf;
+            link->partial_buf = NULL;
+            ret = ff_filter_frame_framed(link, pbuf);
+        }
+        if (ret < 0) {
+            link->frame_requested = 0;
+            if (ret == AVERROR_EOF)
+                link->closed = 1;
+        } else {
+            av_assert0(!link->frame_requested ||
+                       link->flags & FF_LINK_FLAG_REQUEST_LOOP);
+        }
     }
-    if (ret == AVERROR_EOF)
-        link->closed = 1;
     return ret;
 }
 
@@ -702,6 +712,7 @@ static int ff_filter_frame_framed(AVFilterLink *link, AVFrame *frame)
 
     pts = out->pts;
     ret = filter_frame(link, out);
+    link->frame_requested = 0;
     ff_update_link_current_pts(link, pts);
     return ret;
 }
@@ -713,6 +724,7 @@ static int ff_filter_frame_needs_framing(AVFilterLink *link, AVFrame *frame)
     int nb_channels = av_frame_get_channels(frame);
     int ret = 0;
 
+    link->flags |= FF_LINK_FLAG_REQUEST_LOOP;
     /* Handle framing (min_samples, max_samples) */
     while (insamples) {
         if (!pbuf) {

libavfilter/avfilter.h

@@ -682,6 +682,17 @@ struct AVFilterLink {
      * Number of channels.
      */
     int channels;
+
+    /**
+     * True if a frame is being requested on the link.
+     * Used internally by the framework.
+     */
+    unsigned frame_requested;
+
+    /**
+     * Link processing flags.
+     */
+    unsigned flags;
 };
 
 /**

libavfilter/f_ebur128.c

@@ -128,7 +128,6 @@ typedef struct {
     /* misc */
     int loglevel;                   ///< log level for frame logging
     int metadata;                   ///< whether or not to inject loudness results in frames
-    int request_fulfilled;          ///< 1 if some audio just got pushed, 0 otherwise. FIXME: remove me
 } EBUR128Context;
 
 #define OFFSET(x) offsetof(EBUR128Context, x)
@@ -317,6 +316,8 @@ static int config_video_output(AVFilterLink *outlink)
     DRAW_RECT(ebur128->graph);
     DRAW_RECT(ebur128->gauge);
 
+    outlink->flags |= FF_LINK_FLAG_REQUEST_LOOP;
+
     return 0;
 }
 
@@ -380,6 +381,8 @@ static int config_audio_output(AVFilterLink *outlink)
             return AVERROR(ENOMEM);
     }
 
+    outlink->flags |= FF_LINK_FLAG_REQUEST_LOOP;
+
     return 0;
 }
 
@@ -400,21 +403,6 @@ static struct hist_entry *get_histogram(void)
     return h;
 }
 
-/* This is currently necessary for the min/max samples to work properly.
- * FIXME: remove me when possible */
-static int audio_request_frame(AVFilterLink *outlink)
-{
-    int ret;
-    AVFilterContext *ctx = outlink->src;
-    EBUR128Context *ebur128 = ctx->priv;
-
-    ebur128->request_fulfilled = 0;
-    do {
-        ret = ff_request_frame(ctx->inputs[0]);
-    } while (!ebur128->request_fulfilled && ret >= 0);
-    return ret;
-}
-
 static av_cold int init(AVFilterContext *ctx, const char *args)
 {
     int ret;
@@ -463,8 +451,6 @@ static av_cold int init(AVFilterContext *ctx, const char *args)
         .type         = AVMEDIA_TYPE_AUDIO,
         .config_props = config_audio_output,
     };
-    if (ebur128->metadata)
-        pad.request_frame = audio_request_frame;
     if (!pad.name)
         return AVERROR(ENOMEM);
     ff_insert_outpad(ctx, ebur128->do_video, &pad);
@@ -717,7 +703,6 @@ static int filter_frame(AVFilterLink *inlink, AVFrame *insamples)
         }
     }
 
-    ebur128->request_fulfilled = 1;
     return ff_filter_frame(ctx->outputs[ebur128->do_video], insamples);
 }
 

libavfilter/internal.h

@@ -325,4 +325,18 @@ int ff_buffersink_read_samples_compat(AVFilterContext *ctx, AVFilterBufferRef **
  */
 int ff_filter_frame(AVFilterLink *link, AVFrame *frame);
 
+/**
+ * Flags for AVFilterLink.flags.
+ */
+enum {
+
+    /**
+     * Frame requests may need to loop in order to be fulfilled.
+     * A filter must set this flags on an output link if it may return 0 in
+     * request_frame() without filtering a frame.
+     */
+    FF_LINK_FLAG_REQUEST_LOOP = 1,
+
+};
+
 #endif /* AVFILTER_INTERNAL_H */

libavfilter/vf_tile.c

@@ -116,6 +116,8 @@ static int config_props(AVFilterLink *outlink)
     /* TODO make the color an option, or find an unified way of choosing it */
     ff_draw_color(&tile->draw, &tile->blank, (uint8_t[]){ 0, 0, 0, -1 });
 
+    outlink->flags |= FF_LINK_FLAG_REQUEST_LOOP;
+
     return 0;
 }
 
@@ -203,16 +205,9 @@ static int request_frame(AVFilterLink *outlink)
     AVFilterLink *inlink = ctx->inputs[0];
     int r;
 
-    while (1) {
-        r = ff_request_frame(inlink);
-        if (r < 0) {
-            if (r == AVERROR_EOF && tile->current)
-                r = end_last_frame(ctx);
-            break;
-        }
-        if (!tile->current) /* done */
-            break;
-    }
+    r = ff_request_frame(inlink);
+    if (r == AVERROR_EOF && tile->current)
+        r = end_last_frame(ctx);
     return r;
 }
 

tests/ref/fate/ffprobe_compact

 packet|codec_type=audio|stream_index=0|pts=0|pts_time=0.000000|dts=0|dts_time=0.000000|duration=1024|duration_time=0.023220|convergence_duration=N/A|convergence_duration_time=N/A|size=2048|pos=572|flags=K
-frame|media_type=audio|key_frame=1|pkt_pts=0|pkt_pts_time=0.000000|pkt_dts=0|pkt_dts_time=0.000000|pkt_duration=1024|pkt_duration_time=0.023220|pkt_pos=572|pkt_size=2048|sample_fmt=s16|nb_samples=1024|channels=1|channel_layout=mono
+frame|media_type=audio|key_frame=1|pkt_pts=0|pkt_pts_time=0.000000|pkt_dts=0|pkt_dts_time=0.000000|pkt_duration=1024|pkt_duration_time=0.023220|pkt_pos=572|pkt_size=2048|sample_fmt=s16|nb_samples=1024|channels=1|channel_layout=unknown
 packet|codec_type=video|stream_index=1|pts=0|pts_time=0.000000|dts=0|dts_time=0.000000|duration=2048|duration_time=0.040000|convergence_duration=N/A|convergence_duration_time=N/A|size=230400|pos=2647|flags=K
 frame|media_type=video|key_frame=1|pkt_pts=0|pkt_pts_time=0.000000|pkt_dts=0|pkt_dts_time=0.000000|pkt_duration=2048|pkt_duration_time=0.040000|pkt_pos=2647|pkt_size=N/A|width=320|height=240|pix_fmt=rgb24|sample_aspect_ratio=1:1|pict_type=I|coded_picture_number=0|display_picture_number=0|interlaced_frame=0|top_field_first=0|repeat_pict=0
 packet|codec_type=video|stream_index=2|pts=0|pts_time=0.000000|dts=0|dts_time=0.000000|duration=2048|duration_time=0.040000|convergence_duration=N/A|convergence_duration_time=N/A|size=30000|pos=233068|flags=K
 frame|media_type=video|key_frame=1|pkt_pts=0|pkt_pts_time=0.000000|pkt_dts=0|pkt_dts_time=0.000000|pkt_duration=2048|pkt_duration_time=0.040000|pkt_pos=233068|pkt_size=N/A|width=100|height=100|pix_fmt=rgb24|sample_aspect_ratio=1:1|pict_type=I|coded_picture_number=0|display_picture_number=0|interlaced_frame=0|top_field_first=0|repeat_pict=0
 packet|codec_type=audio|stream_index=0|pts=1024|pts_time=0.023220|dts=1024|dts_time=0.023220|duration=1024|duration_time=0.023220|convergence_duration=N/A|convergence_duration_time=N/A|size=2048|pos=263073|flags=K
-frame|media_type=audio|key_frame=1|pkt_pts=1024|pkt_pts_time=0.023220|pkt_dts=1024|pkt_dts_time=0.023220|pkt_duration=1024|pkt_duration_time=0.023220|pkt_pos=263073|pkt_size=2048|sample_fmt=s16|nb_samples=1024|channels=1|channel_layout=mono
+frame|media_type=audio|key_frame=1|pkt_pts=1024|pkt_pts_time=0.023220|pkt_dts=1024|pkt_dts_time=0.023220|pkt_duration=1024|pkt_duration_time=0.023220|pkt_pos=263073|pkt_size=2048|sample_fmt=s16|nb_samples=1024|channels=1|channel_layout=unknown
 packet|codec_type=video|stream_index=1|pts=2048|pts_time=0.040000|dts=2048|dts_time=0.040000|duration=2048|duration_time=0.040000|convergence_duration=N/A|convergence_duration_time=N/A|size=230400|pos=265151|flags=K
 frame|media_type=video|key_frame=1|pkt_pts=2048|pkt_pts_time=0.040000|pkt_dts=2048|pkt_dts_time=0.040000|pkt_duration=2048|pkt_duration_time=0.040000|pkt_pos=265151|pkt_size=N/A|width=320|height=240|pix_fmt=rgb24|sample_aspect_ratio=1:1|pict_type=I|coded_picture_number=0|display_picture_number=0|interlaced_frame=0|top_field_first=0|repeat_pict=0
 packet|codec_type=video|stream_index=2|pts=2048|pts_time=0.040000|dts=2048|dts_time=0.040000|duration=2048|duration_time=0.040000|convergence_duration=N/A|convergence_duration_time=N/A|size=30000|pos=495575|flags=K
 frame|media_type=video|key_frame=1|pkt_pts=2048|pkt_pts_time=0.040000|pkt_dts=2048|pkt_dts_time=0.040000|pkt_duration=2048|pkt_duration_time=0.040000|pkt_pos=495575|pkt_size=N/A|width=100|height=100|pix_fmt=rgb24|sample_aspect_ratio=1:1|pict_type=I|coded_picture_number=0|display_picture_number=0|interlaced_frame=0|top_field_first=0|repeat_pict=0
 packet|codec_type=audio|stream_index=0|pts=2048|pts_time=0.046440|dts=2048|dts_time=0.046440|duration=1024|duration_time=0.023220|convergence_duration=N/A|convergence_duration_time=N/A|size=2048|pos=525580|flags=K
-frame|media_type=audio|key_frame=1|pkt_pts=2048|pkt_pts_time=0.046440|pkt_dts=2048|pkt_dts_time=0.046440|pkt_duration=1024|pkt_duration_time=0.023220|pkt_pos=525580|pkt_size=2048|sample_fmt=s16|nb_samples=1024|channels=1|channel_layout=mono
+frame|media_type=audio|key_frame=1|pkt_pts=2048|pkt_pts_time=0.046440|pkt_dts=2048|pkt_dts_time=0.046440|pkt_duration=1024|pkt_duration_time=0.023220|pkt_pos=525580|pkt_size=2048|sample_fmt=s16|nb_samples=1024|channels=1|channel_layout=unknown
 packet|codec_type=audio|stream_index=0|pts=3072|pts_time=0.069660|dts=3072|dts_time=0.069660|duration=1024|duration_time=0.023220|convergence_duration=N/A|convergence_duration_time=N/A|size=2048|pos=527651|flags=K
-frame|media_type=audio|key_frame=1|pkt_pts=3072|pkt_pts_time=0.069660|pkt_dts=3072|pkt_dts_time=0.069660|pkt_duration=1024|pkt_duration_time=0.023220|pkt_pos=527651|pkt_size=2048|sample_fmt=s16|nb_samples=1024|channels=1|channel_layout=mono
+frame|media_type=audio|key_frame=1|pkt_pts=3072|pkt_pts_time=0.069660|pkt_dts=3072|pkt_dts_time=0.069660|pkt_duration=1024|pkt_duration_time=0.023220|pkt_pos=527651|pkt_size=2048|sample_fmt=s16|nb_samples=1024|channels=1|channel_layout=unknown
 packet|codec_type=video|stream_index=1|pts=4096|pts_time=0.080000|dts=4096|dts_time=0.080000|duration=2048|duration_time=0.040000|convergence_duration=N/A|convergence_duration_time=N/A|size=230400|pos=529729|flags=K
 frame|media_type=video|key_frame=1|pkt_pts=4096|pkt_pts_time=0.080000|pkt_dts=4096|pkt_dts_time=0.080000|pkt_duration=2048|pkt_duration_time=0.040000|pkt_pos=529729|pkt_size=N/A|width=320|height=240|pix_fmt=rgb24|sample_aspect_ratio=1:1|pict_type=I|coded_picture_number=0|display_picture_number=0|interlaced_frame=0|top_field_first=0|repeat_pict=0
 packet|codec_type=video|stream_index=2|pts=4096|pts_time=0.080000|dts=4096|dts_time=0.080000|duration=2048|duration_time=0.040000|convergence_duration=N/A|convergence_duration_time=N/A|size=30000|pos=760153|flags=K
 frame|media_type=video|key_frame=1|pkt_pts=4096|pkt_pts_time=0.080000|pkt_dts=4096|pkt_dts_time=0.080000|pkt_duration=2048|pkt_duration_time=0.040000|pkt_pos=760153|pkt_size=N/A|width=100|height=100|pix_fmt=rgb24|sample_aspect_ratio=1:1|pict_type=I|coded_picture_number=0|display_picture_number=0|interlaced_frame=0|top_field_first=0|repeat_pict=0
 packet|codec_type=audio|stream_index=0|pts=4096|pts_time=0.092880|dts=4096|dts_time=0.092880|duration=1024|duration_time=0.023220|convergence_duration=N/A|convergence_duration_time=N/A|size=2048|pos=790158|flags=K
-frame|media_type=audio|key_frame=1|pkt_pts=4096|pkt_pts_time=0.092880|pkt_dts=4096|pkt_dts_time=0.092880|pkt_duration=1024|pkt_duration_time=0.023220|pkt_pos=790158|pkt_size=2048|sample_fmt=s16|nb_samples=1024|channels=1|channel_layout=mono
+frame|media_type=audio|key_frame=1|pkt_pts=4096|pkt_pts_time=0.092880|pkt_dts=4096|pkt_dts_time=0.092880|pkt_duration=1024|pkt_duration_time=0.023220|pkt_pos=790158|pkt_size=2048|sample_fmt=s16|nb_samples=1024|channels=1|channel_layout=unknown
 packet|codec_type=audio|stream_index=0|pts=5120|pts_time=0.116100|dts=5120|dts_time=0.116100|duration=1024|duration_time=0.023220|convergence_duration=N/A|convergence_duration_time=N/A|size=2048|pos=792229|flags=K
-frame|media_type=audio|key_frame=1|pkt_pts=5120|pkt_pts_time=0.116100|pkt_dts=5120|pkt_dts_time=0.116100|pkt_duration=1024|pkt_duration_time=0.023220|pkt_pos=792229|pkt_size=2048|sample_fmt=s16|nb_samples=1024|channels=1|channel_layout=mono
+frame|media_type=audio|key_frame=1|pkt_pts=5120|pkt_pts_time=0.116100|pkt_dts=5120|pkt_dts_time=0.116100|pkt_duration=1024|pkt_duration_time=0.023220|pkt_pos=792229|pkt_size=2048|sample_fmt=s16|nb_samples=1024|channels=1|channel_layout=unknown
 packet|codec_type=video|stream_index=1|pts=6144|pts_time=0.120000|dts=6144|dts_time=0.120000|duration=2048|duration_time=0.040000|convergence_duration=N/A|convergence_duration_time=N/A|size=230400|pos=794307|flags=K
 frame|media_type=video|key_frame=1|pkt_pts=6144|pkt_pts_time=0.120000|pkt_dts=6144|pkt_dts_time=0.120000|pkt_duration=2048|pkt_duration_time=0.040000|pkt_pos=794307|pkt_size=N/A|width=320|height=240|pix_fmt=rgb24|sample_aspect_ratio=1:1|pict_type=I|coded_picture_number=0|display_picture_number=0|interlaced_frame=0|top_field_first=0|repeat_pict=0
 packet|codec_type=video|stream_index=2|pts=6144|pts_time=0.120000|dts=6144|dts_time=0.120000|duration=2048|duration_time=0.040000|convergence_duration=N/A|convergence_duration_time=N/A|size=30000|pos=1024731|flags=K

tests/ref/fate/ffprobe_csv

 packet,audio,0,0,0.000000,0,0.000000,1024,0.023220,N/A,N/A,2048,572,K
-frame,audio,1,0,0.000000,0,0.000000,1024,0.023220,572,2048,s16,1024,1,mono
+frame,audio,1,0,0.000000,0,0.000000,1024,0.023220,572,2048,s16,1024,1,unknown
 packet,video,1,0,0.000000,0,0.000000,2048,0.040000,N/A,N/A,230400,2647,K
 frame,video,1,0,0.000000,0,0.000000,2048,0.040000,2647,N/A,320,240,rgb24,1:1,I,0,0,0,0,0
 packet,video,2,0,0.000000,0,0.000000,2048,0.040000,N/A,N/A,30000,233068,K
 frame,video,1,0,0.000000,0,0.000000,2048,0.040000,233068,N/A,100,100,rgb24,1:1,I,0,0,0,0,0
 packet,audio,0,1024,0.023220,1024,0.023220,1024,0.023220,N/A,N/A,2048,263073,K
-frame,audio,1,1024,0.023220,1024,0.023220,1024,0.023220,263073,2048,s16,1024,1,mono
+frame,audio,1,1024,0.023220,1024,0.023220,1024,0.023220,263073,2048,s16,1024,1,unknown
 packet,video,1,2048,0.040000,2048,0.040000,2048,0.040000,N/A,N/A,230400,265151,K
 frame,video,1,2048,0.040000,2048,0.040000,2048,0.040000,265151,N/A,320,240,rgb24,1:1,I,0,0,0,0,0
 packet,video,2,2048,0.040000,2048,0.040000,2048,0.040000,N/A,N/A,30000,495575,K
 frame,video,1,2048,0.040000,2048,0.040000,2048,0.040000,495575,N/A,100,100,rgb24,1:1,I,0,0,0,0,0
 packet,audio,0,2048,0.046440,2048,0.046440,1024,0.023220,N/A,N/A,2048,525580,K
-frame,audio,1,2048,0.046440,2048,0.046440,1024,0.023220,525580,2048,s16,1024,1,mono
+frame,audio,1,2048,0.046440,2048,0.046440,1024,0.023220,525580,2048,s16,1024,1,unknown
 packet,audio,0,3072,0.069660,3072,0.069660,1024,0.023220,N/A,N/A,2048,527651,K
-frame,audio,1,3072,0.069660,3072,0.069660,1024,0.023220,527651,2048,s16,1024,1,mono
+frame,audio,1,3072,0.069660,3072,0.069660,1024,0.023220,527651,2048,s16,1024,1,unknown
 packet,video,1,4096,0.080000,4096,0.080000,2048,0.040000,N/A,N/A,230400,529729,K
 frame,video,1,4096,0.080000,4096,0.080000,2048,0.040000,529729,N/A,320,240,rgb24,1:1,I,0,0,0,0,0
 packet,video,2,4096,0.080000,4096,0.080000,2048,0.040000,N/A,N/A,30000,760153,K
 frame,video,1,4096,0.080000,4096,0.080000,2048,0.040000,760153,N/A,100,100,rgb24,1:1,I,0,0,0,0,0
 packet,audio,0,4096,0.092880,4096,0.092880,1024,0.023220,N/A,N/A,2048,790158,K
-frame,audio,1,4096,0.092880,4096,0.092880,1024,0.023220,790158,2048,s16,1024,1,mono
+frame,audio,1,4096,0.092880,4096,0.092880,1024,0.023220,790158,2048,s16,1024,1,unknown
 packet,audio,0,5120,0.116100,5120,0.116100,1024,0.023220,N/A,N/A,2048,792229,K
-frame,audio,1,5120,0.116100,5120,0.116100,1024,0.023220,792229,2048,s16,1024,1,mono
+frame,audio,1,5120,0.116100,5120,0.116100,1024,0.023220,792229,2048,s16,1024,1,unknown
 packet,video,1,6144,0.120000,6144,0.120000,2048,0.040000,N/A,N/A,230400,794307,K
 frame,video,1,6144,0.120000,6144,0.120000,2048,0.040000,794307,N/A,320,240,rgb24,1:1,I,0,0,0,0,0
 packet,video,2,6144,0.120000,6144,0.120000,2048,0.040000,N/A,N/A,30000,1024731,K

tests/ref/fate/ffprobe_default

@@ -27,7 +27,7 @@ pkt_size=2048
 sample_fmt=s16
 nb_samples=1024
 channels=1
-channel_layout=mono
+channel_layout=unknown
 [/FRAME]
 [PACKET]
 codec_type=video
@@ -132,7 +132,7 @@ pkt_size=2048
 sample_fmt=s16
 nb_samples=1024
 channels=1
-channel_layout=mono
+channel_layout=unknown
 [/FRAME]
 [PACKET]
 codec_type=video
@@ -237,7 +237,7 @@ pkt_size=2048
 sample_fmt=s16
 nb_samples=1024
 channels=1
-channel_layout=mono
+channel_layout=unknown
 [/FRAME]
 [PACKET]
 codec_type=audio
@@ -268,7 +268,7 @@ pkt_size=2048
 sample_fmt=s16
 nb_samples=1024
 channels=1
-channel_layout=mono
+channel_layout=unknown
 [/FRAME]
 [PACKET]
 codec_type=video
@@ -373,7 +373,7 @@ pkt_size=2048
 sample_fmt=s16
 nb_samples=1024
 channels=1
-channel_layout=mono
+channel_layout=unknown
 [/FRAME]
 [PACKET]
 codec_type=audio
@@ -404,7 +404,7 @@ pkt_size=2048
 sample_fmt=s16
 nb_samples=1024
 channels=1
-channel_layout=mono
+channel_layout=unknown
 [/FRAME]
 [PACKET]
 codec_type=video

tests/ref/fate/ffprobe_flat

@@ -24,7 +24,7 @@ packets_and_frames.frame.0.pkt_size="2048"
 packets_and_frames.frame.0.sample_fmt="s16"
 packets_and_frames.frame.0.nb_samples=1024
 packets_and_frames.frame.0.channels=1
-packets_and_frames.frame.0.channel_layout="mono"
+packets_and_frames.frame.0.channel_layout="unknown"
 packets_and_frames.packet.1.codec_type="video"
 packets_and_frames.packet.1.stream_index=1
 packets_and_frames.packet.1.pts=0
@@ -117,7 +117,7 @@ packets_and_frames.frame.3.pkt_size="2048"
 packets_and_frames.frame.3.sample_fmt="s16"
 packets_and_frames.frame.3.nb_samples=1024
 packets_and_frames.frame.3.channels=1
-packets_and_frames.frame.3.channel_layout="mono"
+packets_and_frames.frame.3.channel_layout="unknown"
 packets_and_frames.packet.4.codec_type="video"
 packets_and_frames.packet.4.stream_index=1
 packets_and_frames.packet.4.pts=2048
@@ -210,7 +210,7 @@ packets_and_frames.frame.6.pkt_size="2048"
 packets_and_frames.frame.6.sample_fmt="s16"
 packets_and_frames.frame.6.nb_samples=1024
 packets_and_frames.frame.6.channels=1
-packets_and_frames.frame.6.channel_layout="mono"
+packets_and_frames.frame.6.channel_layout="unknown"
 packets_and_frames.packet.7.codec_type="audio"
 packets_and_frames.packet.7.stream_index=0
 packets_and_frames.packet.7.pts=3072
@@ -237,7 +237,7 @@ packets_and_frames.frame.7.pkt_size="2048"
 packets_and_frames.frame.7.sample_fmt="s16"
 packets_and_frames.frame.7.nb_samples=1024
 packets_and_frames.frame.7.channels=1
-packets_and_frames.frame.7.channel_layout="mono"
+packets_and_frames.frame.7.channel_layout="unknown"
 packets_and_frames.packet.8.codec_type="video"
 packets_and_frames.packet.8.stream_index=1
 packets_and_frames.packet.8.pts=4096
@@ -330,7 +330,7 @@ packets_and_frames.frame.10.pkt_size="2048"
 packets_and_frames.frame.10.sample_fmt="s16"
 packets_and_frames.frame.10.nb_samples=1024
 packets_and_frames.frame.10.channels=1
-packets_and_frames.frame.10.channel_layout="mono"
+packets_and_frames.frame.10.channel_layout="unknown"
 packets_and_frames.packet.11.codec_type="audio"
 packets_and_frames.packet.11.stream_index=0
 packets_and_frames.packet.11.pts=5120
@@ -357,7 +357,7 @@ packets_and_frames.frame.11.pkt_size="2048"
 packets_and_frames.frame.11.sample_fmt="s16"
 packets_and_frames.frame.11.nb_samples=1024
 packets_and_frames.frame.11.channels=1
-packets_and_frames.frame.11.channel_layout="mono"
+packets_and_frames.frame.11.channel_layout="unknown"
 packets_and_frames.packet.12.codec_type="video"
 packets_and_frames.packet.12.stream_index=1
 packets_and_frames.packet.12.pts=6144

tests/ref/fate/ffprobe_ini

@@ -29,7 +29,7 @@ pkt_size=2048
 sample_fmt=s16
 nb_samples=1024
 channels=1
-channel_layout=mono
+channel_layout=unknown
 
 [packets_and_frames.packet.1]
 codec_type=video
@@ -134,7 +134,7 @@ pkt_size=2048
 sample_fmt=s16
 nb_samples=1024
 channels=1
-channel_layout=mono
+channel_layout=unknown
 
 [packets_and_frames.packet.4]
 codec_type=video
@@ -239,7 +239,7 @@ pkt_size=2048
 sample_fmt=s16
 nb_samples=1024
 channels=1
-channel_layout=mono
+channel_layout=unknown
 
 [packets_and_frames.packet.7]
 codec_type=audio
@@ -270,7 +270,7 @@ pkt_size=2048
 sample_fmt=s16
 nb_samples=1024
 channels=1
-channel_layout=mono
+channel_layout=unknown
 
 [packets_and_frames.packet.8]
 codec_type=video
@@ -375,7 +375,7 @@ pkt_size=2048
 sample_fmt=s16
 nb_samples=1024
 channels=1
-channel_layout=mono
+channel_layout=unknown
 
 [packets_and_frames.packet.11]
 codec_type=audio
@@ -406,7 +406,7 @@ pkt_size=2048
 sample_fmt=s16
 nb_samples=1024
 channels=1
-channel_layout=mono
+channel_layout=unknown
 
 [packets_and_frames.packet.12]
 codec_type=video

tests/ref/fate/ffprobe_json

@@ -28,8 +28,7 @@
             "pkt_size": "2048",
             "sample_fmt": "s16",
             "nb_samples": 1024,
-            "channels": 1,
-            "channel_layout": "mono"
+            "channels": 1
         },
         {
             "type": "packet",
@@ -131,8 +130,7 @@
             "pkt_size": "2048",
             "sample_fmt": "s16",
             "nb_samples": 1024,
-            "channels": 1,
-            "channel_layout": "mono"
+            "channels": 1
         },
         {
             "type": "packet",
@@ -234,8 +232,7 @@
             "pkt_size": "2048",
             "sample_fmt": "s16",
             "nb_samples": 1024,
-            "channels": 1,
-            "channel_layout": "mono"
+            "channels": 1
         },
         {
             "type": "packet",
@@ -265,8 +262,7 @@
             "pkt_size": "2048",
             "sample_fmt": "s16",
             "nb_samples": 1024,
-            "channels": 1,
-            "channel_layout": "mono"
+            "channels": 1
         },
         {
             "type": "packet",
@@ -368,8 +364,7 @@
             "pkt_size": "2048",
             "sample_fmt": "s16",
             "nb_samples": 1024,
-            "channels": 1,
-            "channel_layout": "mono"
+            "channels": 1
         },
         {
             "type": "packet",
@@ -399,8 +394,7 @@
             "pkt_size": "2048",
             "sample_fmt": "s16",
             "nb_samples": 1024,
-            "channels": 1,
-            "channel_layout": "mono"
+            "channels": 1
         },
         {
             "type": "packet",

tests/ref/fate/ffprobe_xml

@@ -2,29 +2,29 @@
 <ffprobe>
     <packets_and_frames>
         <packet codec_type="audio" stream_index="0" pts="0" pts_time="0.000000" dts="0" dts_time="0.000000" duration="1024" duration_time="0.023220" size="2048" pos="572" flags="K"/>
-        <frame media_type="audio" key_frame="1" pkt_pts="0" pkt_pts_time="0.000000" pkt_dts="0" pkt_dts_time="0.000000" pkt_duration="1024" pkt_duration_time="0.023220" pkt_pos="572" pkt_size="2048" sample_fmt="s16" nb_samples="1024" channels="1" channel_layout="mono"/>
+        <frame media_type="audio" key_frame="1" pkt_pts="0" pkt_pts_time="0.000000" pkt_dts="0" pkt_dts_time="0.000000" pkt_duration="1024" pkt_duration_time="0.023220" pkt_pos="572" pkt_size="2048" sample_fmt="s16" nb_samples="1024" channels="1"/>
         <packet codec_type="video" stream_index="1" pts="0" pts_time="0.000000" dts="0" dts_time="0.000000" duration="2048" duration_time="0.040000" size="230400" pos="2647" flags="K"/>
         <frame media_type="video" key_frame="1" pkt_pts="0" pkt_pts_time="0.000000" pkt_dts="0" pkt_dts_time="0.000000" pkt_duration="2048" pkt_duration_time="0.040000" pkt_pos="2647" width="320" height="240" pix_fmt="rgb24" sample_aspect_ratio="1:1" pict_type="I" coded_picture_number="0" display_picture_number="0" interlaced_frame="0" top_field_first="0" repeat_pict="0"/>
         <packet codec_type="video" stream_index="2" pts="0" pts_time="0.000000" dts="0" dts_time="0.000000" duration="2048" duration_time="0.040000" size="30000" pos="233068" flags="K"/>
         <frame media_type="video" key_frame="1" pkt_pts="0" pkt_pts_time="0.000000" pkt_dts="0" pkt_dts_time="0.000000" pkt_duration="2048" pkt_duration_time="0.040000" pkt_pos="233068" width="100" height="100" pix_fmt="rgb24" sample_aspect_ratio="1:1" pict_type="I" coded_picture_number="0" display_picture_number="0" interlaced_frame="0" top_field_first="0" repeat_pict="0"/>
         <packet codec_type="audio" stream_index="0" pts="1024" pts_time="0.023220" dts="1024" dts_time="0.023220" duration="1024" duration_time="0.023220" size="2048" pos="263073" flags="K"/>
-        <frame media_type="audio" key_frame="1" pkt_pts="1024" pkt_pts_time="0.023220" pkt_dts="1024" pkt_dts_time="0.023220" pkt_duration="1024" pkt_duration_time="0.023220" pkt_pos="263073" pkt_size="2048" sample_fmt="s16" nb_samples="1024" channels="1" channel_layout="mono"/>
+        <frame media_type="audio" key_frame="1" pkt_pts="1024" pkt_pts_time="0.023220" pkt_dts="1024" pkt_dts_time="0.023220" pkt_duration="1024" pkt_duration_time="0.023220" pkt_pos="263073" pkt_size="2048" sample_fmt="s16" nb_samples="1024" channels="1"/>
         <packet codec_type="video" stream_index="1" pts="2048" pts_time="0.040000" dts="2048" dts_time="0.040000" duration="2048" duration_time="0.040000" size="230400" pos="265151" flags="K"/>
         <frame media_type="video" key_frame="1" pkt_pts="2048" pkt_pts_time="0.040000" pkt_dts="2048" pkt_dts_time="0.040000" pkt_duration="2048" pkt_duration_time="0.040000" pkt_pos="265151" width="320" height="240" pix_fmt="rgb24" sample_aspect_ratio="1:1" pict_type="I" coded_picture_number="0" display_picture_number="0" interlaced_frame="0" top_field_first="0" repeat_pict="0"/>
         <packet codec_type="video" stream_index="2" pts="2048" pts_time="0.040000" dts="2048" dts_time="0.040000" duration="2048" duration_time="0.040000" size="30000" pos="495575" flags="K"/>
         <frame media_type="video" key_frame="1" pkt_pts="2048" pkt_pts_time="0.040000" pkt_dts="2048" pkt_dts_time="0.040000" pkt_duration="2048" pkt_duration_time="0.040000" pkt_pos="495575" width="100" height="100" pix_fmt="rgb24" sample_aspect_ratio="1:1" pict_type="I" coded_picture_number="0" display_picture_number="0" interlaced_frame="0" top_field_first="0" repeat_pict="0"/>
         <packet codec_type="audio" stream_index="0" pts="2048" pts_time="0.046440" dts="2048" dts_time="0.046440" duration="1024" duration_time="0.023220" size="2048" pos="525580" flags="K"/>
-        <frame media_type="audio" key_frame="1" pkt_pts="2048" pkt_pts_time="0.046440" pkt_dts="2048" pkt_dts_time="0.046440" pkt_duration="1024" pkt_duration_time="0.023220" pkt_pos="525580" pkt_size="2048" sample_fmt="s16" nb_samples="1024" channels="1" channel_layout="mono"/>
+        <frame media_type="audio" key_frame="1" pkt_pts="2048" pkt_pts_time="0.046440" pkt_dts="2048" pkt_dts_time="0.046440" pkt_duration="1024" pkt_duration_time="0.023220" pkt_pos="525580" pkt_size="2048" sample_fmt="s16" nb_samples="1024" channels="1"/>
         <packet codec_type="audio" stream_index="0" pts="3072" pts_time="0.069660" dts="3072" dts_time="0.069660" duration="1024" duration_time="0.023220" size="2048" pos="527651" flags="K"/>
-        <frame media_type="audio" key_frame="1" pkt_pts="3072" pkt_pts_time="0.069660" pkt_dts="3072" pkt_dts_time="0.069660" pkt_duration="1024" pkt_duration_time="0.023220" pkt_pos="527651" pkt_size="2048" sample_fmt="s16" nb_samples="1024" channels="1" channel_layout="mono"/>
+        <frame media_type="audio" key_frame="1" pkt_pts="3072" pkt_pts_time="0.069660" pkt_dts="3072" pkt_dts_time="0.069660" pkt_duration="1024" pkt_duration_time="0.023220" pkt_pos="527651" pkt_size="2048" sample_fmt="s16" nb_samples="1024" channels="1"/>
         <packet codec_type="video" stream_index="1" pts="4096" pts_time="0.080000" dts="4096" dts_time="0.080000" duration="2048" duration_time="0.040000" size="230400" pos="529729" flags="K"/>
         <frame media_type="video" key_frame="1" pkt_pts="4096" pkt_pts_time="0.080000" pkt_dts="4096" pkt_dts_time="0.080000" pkt_duration="2048" pkt_duration_time="0.040000" pkt_pos="529729" width="320" height="240" pix_fmt="rgb24" sample_aspect_ratio="1:1" pict_type="I" coded_picture_number="0" display_picture_number="0" interlaced_frame="0" top_field_first="0" repeat_pict="0"/>
         <packet codec_type="video" stream_index="2" pts="4096" pts_time="0.080000" dts="4096" dts_time="0.080000" duration="2048" duration_time="0.040000" size="30000" pos="760153" flags="K"/>
         <frame media_type="video" key_frame="1" pkt_pts="4096" pkt_pts_time="0.080000" pkt_dts="4096" pkt_dts_time="0.080000" pkt_duration="2048" pkt_duration_time="0.040000" pkt_pos="760153" width="100" height="100" pix_fmt="rgb24" sample_aspect_ratio="1:1" pict_type="I" coded_picture_number="0" display_picture_number="0" interlaced_frame="0" top_field_first="0" repeat_pict="0"/>
         <packet codec_type="audio" stream_index="0" pts="4096" pts_time="0.092880" dts="4096" dts_time="0.092880" duration="1024" duration_time="0.023220" size="2048" pos="790158" flags="K"/>
-        <frame media_type="audio" key_frame="1" pkt_pts="4096" pkt_pts_time="0.092880" pkt_dts="4096" pkt_dts_time="0.092880" pkt_duration="1024" pkt_duration_time="0.023220" pkt_pos="790158" pkt_size="2048" sample_fmt="s16" nb_samples="1024" channels="1" channel_layout="mono"/>
+        <frame media_type="audio" key_frame="1" pkt_pts="4096" pkt_pts_time="0.092880" pkt_dts="4096" pkt_dts_time="0.092880" pkt_duration="1024" pkt_duration_time="0.023220" pkt_pos="790158" pkt_size="2048" sample_fmt="s16" nb_samples="1024" channels="1"/>
         <packet codec_type="audio" stream_index="0" pts="5120" pts_time="0.116100" dts="5120" dts_time="0.116100" duration="1024" duration_time="0.023220" size="2048" pos="792229" flags="K"/>
-        <frame media_type="audio" key_frame="1" pkt_pts="5120" pkt_pts_time="0.116100" pkt_dts="5120" pkt_dts_time="0.116100" pkt_duration="1024" pkt_duration_time="0.023220" pkt_pos="792229" pkt_size="2048" sample_fmt="s16" nb_samples="1024" channels="1" channel_layout="mono"/>
+        <frame media_type="audio" key_frame="1" pkt_pts="5120" pkt_pts_time="0.116100" pkt_dts="5120" pkt_dts_time="0.116100" pkt_duration="1024" pkt_duration_time="0.023220" pkt_pos="792229" pkt_size="2048" sample_fmt="s16" nb_samples="1024" channels="1"/>
         <packet codec_type="video" stream_index="1" pts="6144" pts_time="0.120000" dts="6144" dts_time="0.120000" duration="2048" duration_time="0.040000" size="230400" pos="794307" flags="K"/>
         <frame media_type="video" key_frame="1" pkt_pts="6144" pkt_pts_time="0.120000" pkt_dts="6144" pkt_dts_time="0.120000" pkt_duration="2048" pkt_duration_time="0.040000" pkt_pos="794307" width="320" height="240" pix_fmt="rgb24" sample_aspect_ratio="1:1" pict_type="I" coded_picture_number="0" display_picture_number="0" interlaced_frame="0" top_field_first="0" repeat_pict="0"/>
         <packet codec_type="video" stream_index="2" pts="6144" pts_time="0.120000" dts="6144" dts_time="0.120000" duration="2048" duration_time="0.040000" size="30000" pos="1024731" flags="K"/>