From 88e1b9081ed9863c18b90b6ca577d473fedbe804 Mon Sep 17 00:00:00 2001 From: Vivia Nikolaidou Date: Mon, 24 Jan 2022 12:26:25 +0200 Subject: [PATCH] audioaggregator: Return NOT_NEGOTIATED when the configuration is invalid Otherwise we just end up outputting garbage. https://gitlab.freedesktop.org/gstreamer/gst-plugins-base/-/issues/957 Part-of: --- .../gst-libs/gst/audio/gstaudioaggregator.c | 58 +++++++++++++++------- 1 file changed, 41 insertions(+), 17 deletions(-) diff --git a/subprojects/gst-plugins-base/gst-libs/gst/audio/gstaudioaggregator.c b/subprojects/gst-plugins-base/gst-libs/gst/audio/gstaudioaggregator.c index 40e569a..a811c47 100644 --- a/subprojects/gst-plugins-base/gst-libs/gst/audio/gstaudioaggregator.c +++ b/subprojects/gst-plugins-base/gst-libs/gst/audio/gstaudioaggregator.c @@ -266,24 +266,24 @@ struct _GstAudioAggregatorConvertPadPrivate G_DEFINE_TYPE_WITH_PRIVATE (GstAudioAggregatorConvertPad, gst_audio_aggregator_convert_pad, GST_TYPE_AUDIO_AGGREGATOR_PAD); -static void +static gboolean gst_audio_aggregator_convert_pad_update_converter (GstAudioAggregatorConvertPad * aaggcpad, GstAudioInfo * in_info, GstAudioInfo * out_info) { GstStructure *config = aaggcpad->priv->converter_config; GstAudioConverter *converter; - if (!aaggcpad->priv->converter_config_changed) - return; + if (!aaggcpad->priv->converter_config_changed) { + return TRUE; + } g_clear_pointer (&aaggcpad->priv->converter, gst_audio_converter_free); - aaggcpad->priv->converter_config_changed = FALSE; if (in_info->finfo->format == GST_AUDIO_FORMAT_UNKNOWN) { /* If we haven't received caps yet, this pad should not have * a buffer to convert anyway */ GST_FIXME_OBJECT (aaggcpad, "UNREACHABLE CODE: Unknown input format"); - return; + return FALSE; } converter = @@ -291,17 +291,21 @@ gst_audio_aggregator_convert_pad_update_converter (GstAudioAggregatorConvertPad config ? gst_structure_copy (config) : NULL); if (converter == NULL) { - /* FIXME: Not converting when we need to but the config is invalid (e.g. - * because the mix-matrix is not the right size) produces garbage. An - * invalid config should cause a GST_FLOW_NOT_NEGOTIATED. */ - GST_FIXME_OBJECT (aaggcpad, "Failed to update converter"); - return; + /* Not converting when we need to but the config is invalid (e.g. because + * the mix-matrix is not the right size) produces garbage. An invalid + * config causes a GST_FLOW_NOT_NEGOTIATED. */ + GST_WARNING_OBJECT (aaggcpad, "Failed to update converter"); + return FALSE; } + aaggcpad->priv->converter_config_changed = FALSE; + if (!gst_audio_converter_is_passthrough (converter)) aaggcpad->priv->converter = converter; else gst_audio_converter_free (converter); + + return TRUE; } static void @@ -321,8 +325,10 @@ gst_audio_aggregator_convert_pad_convert_buffer (GstAudioAggregatorPad * GstAudioAggregatorConvertPad *aaggcpad = GST_AUDIO_AGGREGATOR_CONVERT_PAD (aaggpad); - gst_audio_aggregator_convert_pad_update_converter (aaggcpad, in_info, - out_info); + if (!gst_audio_aggregator_convert_pad_update_converter (aaggcpad, in_info, + out_info)) { + return NULL; + } if (aaggcpad->priv->converter) { gint insize = gst_buffer_get_size (input_buffer); @@ -1162,7 +1168,7 @@ gst_audio_aggregator_fixate_src_caps (GstAggregator * agg, GstCaps * caps) } /* Must be called with OBJECT_LOCK taken */ -static void +static gboolean gst_audio_aggregator_update_converters (GstAudioAggregator * aagg, GstAudioInfo * new_info, GstAudioInfo * old_info) { @@ -1183,9 +1189,12 @@ gst_audio_aggregator_update_converters (GstAudioAggregator * aagg, gst_audio_aggregator_convert_buffer (aagg, GST_PAD (aaggpad), old_info, new_info, aaggpad->priv->buffer); gst_buffer_replace (&aaggpad->priv->buffer, new_converted_buffer); - gst_buffer_unref (new_converted_buffer); + if (new_converted_buffer) + gst_buffer_unref (new_converted_buffer); } } + + return TRUE; } /* We now have our final output caps, we can create the required converters */ @@ -1219,7 +1228,11 @@ gst_audio_aggregator_negotiated_src_caps (GstAggregator * agg, GstCaps * caps) memcpy (&srcpad->info, &info, sizeof (info)); - gst_audio_aggregator_update_converters (aagg, &info, &old_info); + if (!gst_audio_aggregator_update_converters (aagg, &info, &old_info)) { + GST_OBJECT_UNLOCK (aagg); + GST_AUDIO_AGGREGATOR_UNLOCK (aagg); + return FALSE; + } if (srcpad_klass->update_conversion_info) srcpad_klass->update_conversion_info (GST_AUDIO_AGGREGATOR_PAD (agg-> @@ -1233,6 +1246,11 @@ gst_audio_aggregator_negotiated_src_caps (GstAggregator * agg, GstCaps * caps) &info, aagg->priv->current_buffer); gst_buffer_unref (aagg->priv->current_buffer); aagg->priv->current_buffer = converted; + if (!converted) { + GST_OBJECT_UNLOCK (aagg); + GST_AUDIO_AGGREGATOR_UNLOCK (aagg); + return FALSE; + } } /* Force recalculating in aggregate */ @@ -2334,12 +2352,18 @@ gst_audio_aggregator_aggregate (GstAggregator * agg, gboolean timeout) /* New buffer? */ if (!pad->priv->buffer) { - if (GST_AUDIO_AGGREGATOR_PAD_GET_CLASS (pad)->convert_buffer) + if (GST_AUDIO_AGGREGATOR_PAD_GET_CLASS (pad)->convert_buffer) { pad->priv->buffer = gst_audio_aggregator_convert_buffer (aagg, GST_PAD (pad), &pad->info, &srcpad->info, input_buffer); - else + if (!pad->priv->buffer) { + GST_OBJECT_UNLOCK (pad); + GST_OBJECT_UNLOCK (agg); + goto not_negotiated; + } + } else { pad->priv->buffer = gst_buffer_ref (input_buffer); + } if (!gst_audio_aggregator_fill_buffer (aagg, pad)) { gst_buffer_replace (&pad->priv->buffer, NULL); -- 2.7.4