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util functions

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git-svn-id: file:///srv/svn/repos/haiku/trunk/current@1143 a95241bf-73f2-0310-859d-f6bbb57e9c96
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shatty 2002-09-24 02:28:49 +00:00
parent a1eca89c99
commit 0216fe7112
2 changed files with 159 additions and 0 deletions
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129
src/add-ons/media/media-add-ons/reader/misc.cpp Normal file
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// misc.cpp
//
// Andrew Bachmann, 2002
//
// Some functions for general debugging and
// working around be media kit bugs.
#include "misc.h"
#include <stdio.h>
// -------------------------------------------------------- //
// lib functions
// -------------------------------------------------------- //
void print_multistream_format(media_multistream_format * format) {
fprintf(stderr,"[");
switch (format->format) {
case media_multistream_format::B_ANY: fprintf(stderr,"ANY"); break;
case media_multistream_format::B_VID: fprintf(stderr,"VID"); break;
case media_multistream_format::B_AVI: fprintf(stderr,"AVI"); break;
case media_multistream_format::B_MPEG1: fprintf(stderr,"MPEG1"); break;
case media_multistream_format::B_MPEG2: fprintf(stderr,"MPEG2"); break;
case media_multistream_format::B_QUICKTIME: fprintf(stderr,"QUICKTIME"); break;
default: fprintf(stderr,"????"); break;
}
fprintf(stderr," avg_bit_rate(%f) max_bit_rate(%f)",
format->avg_bit_rate,format->max_bit_rate);
fprintf(stderr," avg_chunk_size(%i) max_chunk_size(%i)",
format->avg_chunk_size,format->max_chunk_size);
}
void print_media_format(media_format * format) {
fprintf(stderr,"{");
switch (format->type) {
case B_MEDIA_NO_TYPE: fprintf(stderr,"NO_TYPE"); break;
case B_MEDIA_UNKNOWN_TYPE: fprintf(stderr,"UNKNOWN_TYPE"); break;
case B_MEDIA_RAW_AUDIO: fprintf(stderr,"RAW_AUDIO"); break;
case B_MEDIA_RAW_VIDEO: fprintf(stderr,"RAW_VIDEO"); break;
case B_MEDIA_VBL: fprintf(stderr,"VBL"); break;
case B_MEDIA_TIMECODE: fprintf(stderr,"TIMECODE"); break;
case B_MEDIA_MIDI: fprintf(stderr,"MIDI"); break;
case B_MEDIA_TEXT: fprintf(stderr,"TEXT"); break;
case B_MEDIA_HTML: fprintf(stderr,"HTML"); break;
case B_MEDIA_MULTISTREAM: fprintf(stderr,"MULTISTREAM"); break;
case B_MEDIA_PARAMETERS: fprintf(stderr,"PARAMETERS"); break;
case B_MEDIA_ENCODED_AUDIO: fprintf(stderr,"ENCODED_AUDIO"); break;
case B_MEDIA_ENCODED_VIDEO: fprintf(stderr,"ENCODED_VIDEO"); break;
default: fprintf(stderr,"????"); break;
}
fprintf(stderr,":");
switch (format->type) {
case B_MEDIA_RAW_AUDIO: fprintf(stderr,"RAW_AUDIO"); break;
case B_MEDIA_RAW_VIDEO: fprintf(stderr,"RAW_VIDEO"); break;
case B_MEDIA_MULTISTREAM: print_multistream_format(&format->u.multistream); break;
case B_MEDIA_ENCODED_AUDIO: fprintf(stderr,"ENCODED_AUDIO"); break;
case B_MEDIA_ENCODED_VIDEO: fprintf(stderr,"ENCODED_VIDEO"); break;
default: fprintf(stderr,"????"); break;
}
fprintf(stderr,"}");
}
bool multistream_format_is_acceptible(
const media_multistream_format & producer_format,
const media_multistream_format & consumer_format)
{
// first check the format, if necessary
if (consumer_format.format != media_multistream_format::B_ANY) {
if (consumer_format.format != producer_format.format) {
return false;
}
}
// then check the average bit rate
if (consumer_format.avg_bit_rate != media_multistream_format::wildcard.avg_bit_rate) {
if (consumer_format.avg_bit_rate != producer_format.avg_bit_rate) {
// do they have to match exactly? I don't know. assume yes.
return false;
}
}
// then check the maximum bit rate
if (consumer_format.max_bit_rate != media_multistream_format::wildcard.max_bit_rate) {
if (consumer_format.max_bit_rate != producer_format.max_bit_rate) {
// do they have to match exactly? I don't know. assume yes.
return false;
}
}
// then check the average chunk size
if (consumer_format.avg_chunk_size != media_multistream_format::wildcard.avg_chunk_size) {
if (consumer_format.avg_chunk_size != producer_format.avg_chunk_size) {
// do they have to match exactly? I don't know. assume yes.
return false;
}
}
// then check the maximum bit rate
if (consumer_format.max_chunk_size != media_multistream_format::wildcard.max_chunk_size) {
if (consumer_format.max_chunk_size != producer_format.max_chunk_size) {
// do they have to match exactly? I don't know. assume yes.
return false;
}
}
// should also check format specific fields, and others?
return true;
}
bool format_is_acceptible(
const media_format & producer_format,
const media_format & consumer_format)
{
// first check the type, if necessary
if (consumer_format.type != B_MEDIA_UNKNOWN_TYPE) {
if (consumer_format.type != producer_format.type) {
return false;
}
switch (consumer_format.type) {
case B_MEDIA_MULTISTREAM:
if (!multistream_format_is_acceptible(producer_format.u.multistream,
consumer_format.u.multistream)) {
return false;
}
break;
default:
fprintf(stderr,"format_is_acceptible : unimplemented type.\n");
return format_is_compatible(producer_format,consumer_format);
break;
}
}
// should also check non-type fields?
return true;
}

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src/add-ons/media/media-add-ons/reader/misc.h Normal file
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// misc.h
//
// Andrew Bachmann, 2002
//
// Some functions for general debugging and
// working around be media kit bugs.
#if !defined(_MISC_H)
#define _MISC_H
#include <MediaDefs.h>
// -------------------------------------------------------- //
// lib functions
// -------------------------------------------------------- //
void print_multistream_format(media_multistream_format * format);
void print_media_format(media_format * format);
bool multistream_format_is_acceptible(
const media_multistream_format & producer_format,
const media_multistream_format & consumer_format);
bool format_is_acceptible(
const media_format & producer_format,
const media_format & consumer_format);
#endif // _MISC_H