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vc1parse: prepare the stream-format conversion code and add the simplest ones

Browse source 
It prepares the template for stream-format conversion and it implements
the following conversion:
- sequence-layer-bdu --> bdu
- sequence-layer-bdu-frame --> bdu-frame
- sequence-layer-frame-layer --> frame-layer

Work is done in the pre_push_frame() method.

https://bugzilla.gnome.org/show_bug.cgi?id=738526
This commit is contained in:
Aurélien Zanelli 2014-09-30 14:53:25 +02:00 committed by Sebastian Dröge
parent 1d733eacf7
commit cd500c5a06
1 changed files with 204 additions and 4 deletions
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208
gst/videoparsers/gstvc1parse.c
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@ -1385,6 +1385,7 @@ static GstFlowReturn
gst_vc1_parse_pre_push_frame (GstBaseParse * parse, GstBaseParseFrame * frame)
{
GstVC1Parse *vc1parse = GST_VC1_PARSE (parse);
GstFlowReturn ret = GST_FLOW_OK;
if (!vc1parse->sent_codec_tag) {
GstTagList *taglist;
@ -1405,12 +1406,211 @@ gst_vc1_parse_pre_push_frame (GstBaseParse * parse, GstBaseParseFrame * frame)
vc1parse->sent_codec_tag = TRUE;
}
if (vc1parse->input_stream_format != vc1parse->output_stream_format) {
GST_WARNING_OBJECT (vc1parse, "stream conversion not implemented yet");
return GST_FLOW_ERROR;
/* Nothing to do here */
if (vc1parse->input_stream_format == vc1parse->output_stream_format)
return GST_FLOW_OK;
switch (vc1parse->output_stream_format) {
case VC1_STREAM_FORMAT_BDU:
switch (vc1parse->input_stream_format) {
case VC1_STREAM_FORMAT_BDU:
g_assert_not_reached ();
break;
case VC1_STREAM_FORMAT_BDU_FRAME:
goto conversion_not_supported;
break;
case VC1_STREAM_FORMAT_SEQUENCE_LAYER_BDU:
/* We just need to drop sequence-layer buffer */
if (frame->flags & GST_BASE_PARSE_FRAME_FLAG_NO_FRAME) {
ret = GST_BASE_PARSE_FLOW_DROPPED;
}
break;
case VC1_STREAM_FORMAT_SEQUENCE_LAYER_BDU_FRAME:
case VC1_STREAM_FORMAT_SEQUENCE_LAYER_RAW_FRAME:
case VC1_STREAM_FORMAT_SEQUENCE_LAYER_FRAME_LAYER:
case VC1_STREAM_FORMAT_ASF:
case VC1_STREAM_FORMAT_FRAME_LAYER:
goto conversion_not_supported;
break;
default:
g_assert_not_reached ();
break;
}
break;
case VC1_STREAM_FORMAT_BDU_FRAME:
switch (vc1parse->input_stream_format) {
case VC1_STREAM_FORMAT_BDU:
goto conversion_not_supported;
break;
case VC1_STREAM_FORMAT_BDU_FRAME:
g_assert_not_reached ();
break;
case VC1_STREAM_FORMAT_SEQUENCE_LAYER_BDU:
goto conversion_not_supported;
break;
case VC1_STREAM_FORMAT_SEQUENCE_LAYER_BDU_FRAME:
/* We just need to drop sequence-layer buffer */
if (frame->flags & GST_BASE_PARSE_FRAME_FLAG_NO_FRAME) {
ret = GST_BASE_PARSE_FLOW_DROPPED;
}
break;
case VC1_STREAM_FORMAT_SEQUENCE_LAYER_RAW_FRAME:
case VC1_STREAM_FORMAT_SEQUENCE_LAYER_FRAME_LAYER:
case VC1_STREAM_FORMAT_ASF:
case VC1_STREAM_FORMAT_FRAME_LAYER:
goto conversion_not_supported;
break;
default:
g_assert_not_reached ();
break;
}
break;
case VC1_STREAM_FORMAT_SEQUENCE_LAYER_BDU:
switch (vc1parse->input_stream_format) {
case VC1_STREAM_FORMAT_BDU:
case VC1_STREAM_FORMAT_BDU_FRAME:
goto conversion_not_supported;
break;
case VC1_STREAM_FORMAT_SEQUENCE_LAYER_BDU:
g_assert_not_reached ();
break;
case VC1_STREAM_FORMAT_SEQUENCE_LAYER_BDU_FRAME:
case VC1_STREAM_FORMAT_SEQUENCE_LAYER_RAW_FRAME:
case VC1_STREAM_FORMAT_SEQUENCE_LAYER_FRAME_LAYER:
case VC1_STREAM_FORMAT_ASF:
case VC1_STREAM_FORMAT_FRAME_LAYER:
goto conversion_not_supported;
break;
default:
g_assert_not_reached ();
break;
}
break;
case VC1_STREAM_FORMAT_SEQUENCE_LAYER_BDU_FRAME:
switch (vc1parse->input_stream_format) {
case VC1_STREAM_FORMAT_BDU:
case VC1_STREAM_FORMAT_BDU_FRAME:
case VC1_STREAM_FORMAT_SEQUENCE_LAYER_BDU:
goto conversion_not_supported;
break;
case VC1_STREAM_FORMAT_SEQUENCE_LAYER_BDU_FRAME:
g_assert_not_reached ();
break;
case VC1_STREAM_FORMAT_SEQUENCE_LAYER_RAW_FRAME:
case VC1_STREAM_FORMAT_SEQUENCE_LAYER_FRAME_LAYER:
case VC1_STREAM_FORMAT_ASF:
case VC1_STREAM_FORMAT_FRAME_LAYER:
goto conversion_not_supported;
break;
default:
g_assert_not_reached ();
break;
}
break;
case VC1_STREAM_FORMAT_SEQUENCE_LAYER_RAW_FRAME:
switch (vc1parse->input_stream_format) {
case VC1_STREAM_FORMAT_BDU:
case VC1_STREAM_FORMAT_BDU_FRAME:
case VC1_STREAM_FORMAT_SEQUENCE_LAYER_BDU:
case VC1_STREAM_FORMAT_SEQUENCE_LAYER_BDU_FRAME:
goto conversion_not_supported;
break;
case VC1_STREAM_FORMAT_SEQUENCE_LAYER_RAW_FRAME:
g_assert_not_reached ();
break;
case VC1_STREAM_FORMAT_SEQUENCE_LAYER_FRAME_LAYER:
case VC1_STREAM_FORMAT_ASF:
case VC1_STREAM_FORMAT_FRAME_LAYER:
goto conversion_not_supported;
break;
default:
g_assert_not_reached ();
break;
}
break;
case VC1_STREAM_FORMAT_SEQUENCE_LAYER_FRAME_LAYER:
switch (vc1parse->input_stream_format) {
case VC1_STREAM_FORMAT_BDU:
case VC1_STREAM_FORMAT_BDU_FRAME:
case VC1_STREAM_FORMAT_SEQUENCE_LAYER_BDU:
case VC1_STREAM_FORMAT_SEQUENCE_LAYER_BDU_FRAME:
case VC1_STREAM_FORMAT_SEQUENCE_LAYER_RAW_FRAME:
goto conversion_not_supported;
break;
case VC1_STREAM_FORMAT_SEQUENCE_LAYER_FRAME_LAYER:
g_assert_not_reached ();
break;
case VC1_STREAM_FORMAT_ASF:
case VC1_STREAM_FORMAT_FRAME_LAYER:
goto conversion_not_supported;
break;
default:
g_assert_not_reached ();
break;
}
break;
case VC1_STREAM_FORMAT_ASF:
switch (vc1parse->input_stream_format) {
case VC1_STREAM_FORMAT_BDU:
case VC1_STREAM_FORMAT_BDU_FRAME:
case VC1_STREAM_FORMAT_SEQUENCE_LAYER_BDU:
case VC1_STREAM_FORMAT_SEQUENCE_LAYER_BDU_FRAME:
case VC1_STREAM_FORMAT_SEQUENCE_LAYER_RAW_FRAME:
case VC1_STREAM_FORMAT_SEQUENCE_LAYER_FRAME_LAYER:
goto conversion_not_supported;
break;
case VC1_STREAM_FORMAT_ASF:
g_assert_not_reached ();
break;
case VC1_STREAM_FORMAT_FRAME_LAYER:
goto conversion_not_supported;
break;
default:
g_assert_not_reached ();
break;
}
return GST_FLOW_OK;
case VC1_STREAM_FORMAT_FRAME_LAYER:
switch (vc1parse->input_stream_format) {
case VC1_STREAM_FORMAT_BDU:
case VC1_STREAM_FORMAT_BDU_FRAME:
case VC1_STREAM_FORMAT_SEQUENCE_LAYER_BDU:
case VC1_STREAM_FORMAT_SEQUENCE_LAYER_BDU_FRAME:
case VC1_STREAM_FORMAT_SEQUENCE_LAYER_RAW_FRAME:
goto conversion_not_supported;
break;
case VC1_STREAM_FORMAT_SEQUENCE_LAYER_FRAME_LAYER:
/* We just need to drop sequence-layer buffer */
if (frame->flags & GST_BASE_PARSE_FRAME_FLAG_NO_FRAME) {
ret = GST_BASE_PARSE_FLOW_DROPPED;
}
break;
case VC1_STREAM_FORMAT_ASF:
goto conversion_not_supported;
break;
case VC1_STREAM_FORMAT_FRAME_LAYER:
default:
g_assert_not_reached ();
break;
}
break;
default:
g_assert_not_reached ();
break;
}
return ret;
conversion_not_supported:
GST_WARNING_OBJECT (vc1parse, "stream conversion not implemented yet");
return GST_FLOW_NOT_NEGOTIATED;
}
/* SMPTE 421M Table 7 */