1// misc.cpp
2//
3// Andrew Bachmann, 2002
4//
5// Some functions for general debugging and
6// working around be media kit bugs.
7
8#include "misc.h"
9#include <stdio.h>
10
11// -------------------------------------------------------- //
12// lib functions
13// -------------------------------------------------------- //
14
15void print_multistream_format(media_multistream_format * format) {
16	fprintf(stderr,"[");
17	switch (format->format) {
18	case media_multistream_format::B_ANY:			fprintf(stderr,"ANY"); break;
19	case media_multistream_format::B_VID:			fprintf(stderr,"VID"); break;
20	case media_multistream_format::B_AVI:			fprintf(stderr,"AVI"); break;
21	case media_multistream_format::B_MPEG1:		fprintf(stderr,"MPEG1"); break;
22	case media_multistream_format::B_MPEG2:		fprintf(stderr,"MPEG2"); break;
23	case media_multistream_format::B_QUICKTIME:	fprintf(stderr,"QUICKTIME"); break;
24	default:			fprintf(stderr,"????"); break;
25	}
26	fprintf(stderr," avg_bit_rate(%f) max_bit_rate(%f)",
27			format->avg_bit_rate,format->max_bit_rate);
28	fprintf(stderr," avg_chunk_size(%i) max_chunk_size(%i)",
29			format->avg_chunk_size,format->max_chunk_size);
30}
31
32void print_media_format(media_format * format) {
33	fprintf(stderr,"{");
34	switch (format->type) {
35	case B_MEDIA_NO_TYPE:		fprintf(stderr,"NO_TYPE"); break;
36	case B_MEDIA_UNKNOWN_TYPE:	fprintf(stderr,"UNKNOWN_TYPE"); break;
37	case B_MEDIA_RAW_AUDIO:		fprintf(stderr,"RAW_AUDIO"); break;
38	case B_MEDIA_RAW_VIDEO:		fprintf(stderr,"RAW_VIDEO"); break;
39	case B_MEDIA_VBL:			fprintf(stderr,"VBL"); break;
40	case B_MEDIA_TIMECODE:		fprintf(stderr,"TIMECODE"); break;
41	case B_MEDIA_MIDI:			fprintf(stderr,"MIDI"); break;
42	case B_MEDIA_TEXT:			fprintf(stderr,"TEXT"); break;
43	case B_MEDIA_HTML:			fprintf(stderr,"HTML"); break;
44	case B_MEDIA_MULTISTREAM:	fprintf(stderr,"MULTISTREAM"); break;
45	case B_MEDIA_PARAMETERS:	fprintf(stderr,"PARAMETERS"); break;
46	case B_MEDIA_ENCODED_AUDIO:	fprintf(stderr,"ENCODED_AUDIO"); break;
47	case B_MEDIA_ENCODED_VIDEO:	fprintf(stderr,"ENCODED_VIDEO"); break;
48	default:					fprintf(stderr,"????"); break;
49	}
50	fprintf(stderr,":");
51	switch (format->type) {
52	case B_MEDIA_RAW_AUDIO:		fprintf(stderr,"RAW_AUDIO"); break;
53	case B_MEDIA_RAW_VIDEO:		fprintf(stderr,"RAW_VIDEO"); break;
54	case B_MEDIA_MULTISTREAM:	print_multistream_format(&format->u.multistream); break;
55	case B_MEDIA_ENCODED_AUDIO:	fprintf(stderr,"ENCODED_AUDIO"); break;
56	case B_MEDIA_ENCODED_VIDEO:	fprintf(stderr,"ENCODED_VIDEO"); break;
57	default:					fprintf(stderr,"????"); break;
58	}
59	fprintf(stderr,"}");
60}
61
62bool multistream_format_is_acceptible(
63						const media_multistream_format & producer_format,
64						const media_multistream_format & consumer_format)
65{
66	// first check the format, if necessary
67	if (consumer_format.format != media_multistream_format::B_ANY) {
68		if (consumer_format.format != producer_format.format) {
69			return false;
70		}
71	}
72	// then check the average bit rate
73	if (consumer_format.avg_bit_rate != media_multistream_format::wildcard.avg_bit_rate) {
74		if (consumer_format.avg_bit_rate != producer_format.avg_bit_rate) {
75			// do they have to match exactly?  I don't know.  assume yes.
76			return false;
77		}
78	}
79	// then check the maximum bit rate
80	if (consumer_format.max_bit_rate != media_multistream_format::wildcard.max_bit_rate) {
81		if (consumer_format.max_bit_rate != producer_format.max_bit_rate) {
82			// do they have to match exactly?  I don't know.  assume yes.
83			return false;
84		}
85	}
86	// then check the average chunk size
87	if (consumer_format.avg_chunk_size != media_multistream_format::wildcard.avg_chunk_size) {
88		if (consumer_format.avg_chunk_size != producer_format.avg_chunk_size) {
89			// do they have to match exactly?  I don't know.  assume yes.
90			return false;
91		}
92	}
93	// then check the maximum bit rate
94	if (consumer_format.max_chunk_size != media_multistream_format::wildcard.max_chunk_size) {
95		if (consumer_format.max_chunk_size != producer_format.max_chunk_size) {
96			// do they have to match exactly?  I don't know.  assume yes.
97			return false;
98		}
99	}
100	// should also check format specific fields, and others?
101	return true;
102}
103
104bool format_is_acceptible(
105						const media_format & producer_format,
106						const media_format & consumer_format)
107{
108	// first check the type, if necessary
109	if (consumer_format.type != B_MEDIA_UNKNOWN_TYPE) {
110		if (consumer_format.type != producer_format.type) {
111			return false;
112		}
113		switch (consumer_format.type) {
114			case B_MEDIA_MULTISTREAM:
115				if (!multistream_format_is_acceptible(producer_format.u.multistream,
116													  consumer_format.u.multistream)) {
117					return false;
118				}
119				break;
120			default:
121				fprintf(stderr,"format_is_acceptible : unimplemented type.\n");
122				return format_is_compatible(producer_format,consumer_format);
123				break;
124		}
125	}
126	// should also check non-type fields?
127	return true;
128}
129
130