media-add-ons/opensound/OpenSoundNode.cpp

84 		  fPreferredFormat(input.format),
85 		  	// Keep a version of the original preferred format,
95 		fInput.format.u.raw_audio.format
96 			= media_raw_audio_format::wildcard.format;
126 		float sampleRate = fInput.format.u.raw_audio.frame_rate;
139 		int32 channels = fInput.format.u.raw_audio.channel_count;
140 		int32 frames = bytes / bytes_per_frame(fInput.format);
142 			// convert sample rate from 48000 to connected format
187 	NodeOutput(const media_output& output, const media_format& format)
194 		  fPreferredFormat(format),
223 		size_t size = fOutput.format.u.raw_audio.buffer_size;
267 			fOutput.format.u.raw_audio.buffer_size, bufferDuration);
277 			fOutput.format.u.raw_audio.buffer_size);
284 		if (sizeUsed < (ssize_t)fOutput.format.u.raw_audio.buffer_size) {
286 				fOutput.format.u.raw_audio.buffer_size, sizeUsed);
346 	// initialize our preferred format object
359 		fPreferredFormat.u.raw_audio.format
370 		* (fPreferredFormat.u.raw_audio.format
474 			// figure out if the engine supports the given format
479 				"format[%i]\n", i, f);
482 			status_t err = engine->PreferredFormatFor(fmt, mediaInput.format);
523 				"format[%i]\n", i, f);
532 			mediaOutput.format = preferredFormat;
551 			output->fOutput.format = output->fPreferredFormat;
604 //!	Someone, probably the producer, is asking you about this format.
605 //	Give your honest opinion, possibly modifying *format. Do not ask
606 //	upstream producer about the format, since he's synchronously
610 	media_format* format)
612 	// Check to make sure the format is okay, then remove
626 	if (format == NULL) {
632 	fprintf(stderr,"proposed format: ");
633 	print_media_format(format);
635 	fprintf(stderr,"my format: ");
639 //	if (!format_is_compatible(*format,*myFormat)) {
648 	status_t err = engine->AcceptFormatFor(channel->fOSSFormatFlags, *format,
656 	if ( format->type != B_MEDIA_RAW_AUDIO ) {
662 	//channel->fInput.format = channel->fPreferredFormat;
663 	channel->fInput.format = *format;
665 	/*if(format->u.raw_audio.format == media_raw_audio_format::B_AUDIO_FLOAT
666 		&& channel->fPreferredFormat.u.raw_audio.format
668 		format->u.raw_audio.format = media_raw_audio_format::B_AUDIO_FLOAT;
671 	format->u.raw_audio.format = channel->fPreferredFormat.u.raw_audio.format;
672 	format->u.raw_audio.valid_bits
675 	format->u.raw_audio.frame_rate
677 	format->u.raw_audio.channel_count
679 	format->u.raw_audio.byte_order
682 	format->u.raw_audio.buffer_size
684 			* (format->u.raw_audio.format
686 			* format->u.raw_audio.channel_count;
691 //	if (!format_is_acceptible(*format,myFormat)) {
719 	TRACE("input.format : %u\n", channel->fInput.format.u.raw_audio.format);
872 	channel->fInput.format = with_format;
906 	channel->fInput.format = channel->fPreferredFormat;
914 //	already cool with the format; you should not ask him about it
919 	const media_format& format)
959 //!	FormatSuggestionRequested() is not necessarily part of the format
961 //	to see what the node's preferred data format is, given a suggestion by
965 	media_format* format)
969 	if (format == NULL) {
970 		fprintf(stderr, "\tERROR - NULL format pointer passed in!\n");
974 	// this is the format we'll be returning (our preferred format)
975 	*format = fPreferredFormat;
991 //	process.  We hand out a suggested format, with wildcards for any
994 OpenSoundNode::FormatProposal(const media_source& output, media_format* format)
1007 	media_type requestedType = format->type;
1014 	status_t err = engine->PreferredFormatFor(channel->fOSSFormatFlags, *format, true);
1018 	*format = fPreferredFormat;
1044 	// we don't support any other formats, so we just reject any format
1112 //!	PrepareToConnect() is the second stage of format negotiations that happens
1115 //	changed the proposed format.  It may also have left wildcards in the
1116 //	format.  PrepareToConnect() *must* fully specialize the format before
1120 	const media_destination& where, media_format* format,
1146 	// the format may not yet be fully specialized (the consumer might have
1148 	// error if we don't support the requested format.
1149 	if (format->type != B_MEDIA_RAW_AUDIO) {
1150 		fprintf(stderr, "\tnon-raw-audio format?!\n");
1156 	err = engine->SpecializeFormatFor(channel->fOSSFormatFlags, *format, true);
1164 	if (format->u.raw_audio.buffer_size
1166 		format->u.raw_audio.buffer_size = 2048;
1169 			format->u.raw_audio.buffer_size);
1172 			format->u.raw_audio.buffer_size);
1178 	channel->fOutput.format = *format;
1187 	const media_destination& destination, const media_format& format,
1210 		channel->fOutput.format = channel->fPreferredFormat;
1217 	// format that we agreed on, and report our connection name again.
1219 	channel->fOutput.format = format;
1223 	bigtime_t duration = channel->fOutput.format.u.raw_audio.buffer_size
1225 		/ ( (channel->fOutput.format.u.raw_audio.format
1227 			* channel->fOutput.format.u.raw_audio.channel_count)
1228 		/ ((int32)(channel->fOutput.format.u.raw_audio.frame_rate / 100));
1285 		channel->fOutput.format = channel->fPreferredFormat;
1330 //		size_t nSamples = fOutput.format.u.raw_audio.buffer_size
2229 	size_t bufferSize = input->fInput.format.u.raw_audio.buffer_size;
2241 	if (input->fInput.format.u.raw_audio.format
2301 				= time_for_buffer(bytesWritten, input->fInput.format);
2359 //		if (avail < output->fOutput.format.u.raw_audio.buffer_size)
2381 					/ (output->fOutput.format.u.raw_audio.format
2689 	// we would need to setup a B_MEDIA_ENCODED_AUDIO format here