Customer Reviews

Pro Java ME MMAPI: Mobile Media API for Java Micro Edition (Expert's Voice in Java)

5 star:		(5)
4 star:		(1)
3 star:		(0)
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1 star:		(0)

 

 

This is a well written book. It's not for beginners but then again you don't have be a J2ME (Java ME) guru to understand it. The writing style is technically clear and straight forward without a lot of personal fluff.

Since MMAPI is a subset of Java ME, the scope of the subject is fairly limited but the author covers it well. The only area I might like more explanation is with respect to DataSource and SourceStream. This is covered briefly at the beginning of the book, but it would be nice to know how to implement a custom protocol.

The biggest problem I have had with the MMAPI is it's inconsistent implementation and the author is quick to acknowledge this. One could probably write a whole chapter about the quirks of various mobile devices.

In conclusion, I doubt you will find another book specifically on MMAPI that has the depth that this one does. I highly recommend this book if you are looking to get your feet wet with the MMAPI.

BTW, I really appreciate the time the editors spent to proof read the text as there are very few errors, if any. It's always frustrating to me when I read a book with a lot of code and spelling errors. That's not the case here. Well done!

Pro Java ME MMAPI: Mobile Media API for Java Micro Edition has amazed me. The book is unique as it covers and desmyifies one of the most fragmented and confuse Optional Packages for JME.

I've read more than a dozen books about JME but this is the first book that has really cleared some doubts I had regarding Mobile Media in JME.

I strongly recommend this book if you are developing Multimedia Applications using JME.

Vikram Goyal has done an outstanding job by clarifying and detailing every aspect of MMAPI, discussing the way it has been specified, emphasizing the differences that may occur from one implementation to another and also providing clear, detailed and error free examples that illustrate the aspects being discussed.

Also, the text is very well-written and I've found only 3 typos. Very impressive! Apress is also doing a wonderful job.

Chapter 1 introduces MMAPI and presents its features and requirements as defined by the JCP - Java Community Process, compares MMAPI and the MIDP 2.0 Media subset, where it fits regarding the JME Software stack and at last it lists the manufactures and market players supporting MMAPI.
Nice introduction!

Chapter 2 explains the MMAPI Architecture, the main high-level interfaces, delivers an introduction to the supported protocols and content types, presents the relevant feature sets and the security issues one must take into consideration. It also details the MIDP 2.0 Media subset so that one can understand what's left out on devices implementing it.

Chapter 3 introduces the reader to MMAPI hands-on programming by explaining two simple MIDlets. It also builds the foundation regarding the overall development process and environment.

Chapter 4 is unique, it details the Media Player lifecycle, its possible states and transitions. It explains each state very thoroughly as well as Player events and how to work with them, even the limitations and issues regarding custom events. I've never read a book covering MMAPI with such a detailed explanation.

Chapter 5 covers all the issues regarding the access of media over networks. It starts with a very clear explanation of Threads in JME as well as the security permissions for media acess over networks. Then it puts it all together in a very clear and easy to follow example.

Chapters 6 and 7 are the best ones in my opinion. Those two chapters do pay the book, definitely.Vikram has been brilliant and desmystified Synthetic Tones and the MIDI protocol. He has remembered me of my of childhood, when I've had musical theory classes as it explains everything music and shows you how that all fits into programming with MMAPI. Those chapters are so complete that they have a lot of tips on how to convert from RTTTL to MMAPI format, the MIDI specification and message format and how to work with MIDI in MMAPI, how to create JTS files and other niceties. Thanks Vikram :)

Chapter 8 explains how to work with Audio and Video, playback, capturing, storing, controlling, mixing, it's everything there. It also describes the details of Media Encodings and Sampled Audio as well as the GUI options for dealing with Video.

Chapter 9 has a very cool Device Blogging application that builds upon all the subjects presented so far and also gives a good example of MVC pattern in JME.

Well, the only criticism I have is regarding the section about Streaming Media and also the Appendix C about the JSR 234 - Advanced Multimedia Supplements. Considering that Vikram has proved he's really a subject matter expert He could have provided better sections about them.

In fact, He has already written an article about Streaming in JME and it's available on his web site (so I forgive him) but AMMS is still to be covered. What about on the second edition of his book? Let's wait and see!

A must have book, absolutely!

When I got this book I jumped straight to Chapter 9 viz. "Case Study: Device Blogging". This chapter nicely explains how to write a blogging Midlet for a phone device which includes writing a Blog post, capturing/uploading images to a blog, and capturing/posting audio to a blog. The author explains the MMAPI concepts using the MVC paradigm along with complete source code for client and server side processing of application and interaction logic.

The rest of the book goes deep into the MMAPI architecture and concepts with the help of source code of working applications. The functional Multimedia player example in the 3rd chapter explains the role of various components of MMAPI architecture. A dedicated chapter on Media player lifecycle and events is very helpful in understanding the basic concepts of event handling. The book also covers some of the fundamental concepts behind controlling pitch, tempo, audio mixing with the help of examples.

Chapter 7 is dedicated to the MIDI specification which is very comprehensive and well explained within the context of JavaME framework. Writing a book like this requires a thorough knowledge of both JavaME and the various subtleties of tone, pitch, sequencing, octaves, frequency, audio conversion and their treatment on the device and at the network level. In my opinion the author has done a great job.

All in all this book is a great resource if you are planning to develop the next Mobile video sharing, photo sharing application or your next multi-media player for a Mobile phone.

This is an excellent book for those with an interest in creating Multimedia Applications for J2Me Mobile devices.

I would say that the book is split into three sections:

Section 1 (chapters 1 to 3): This section gives detailed information about the architecture of the MMAPI and how it fits within the J2Me platform. There is also has a good "getting started" guide to be found here.

Section 2 (chapters 4 to 8): Deal with how one uses the Player object in all its forms from playing simple tones, to playing back captured and streamed video.

This section was the most useful to me. It provides excellent
background information about each of the subject areas. An example of this is that it gives a full history of the MIDI standard, and an overview of the protocol itself, before it starts talking about how you write the code to play a midi file in J2Me.

Section 3: (the last chapter) is a case study, providing yet more code examples, and a companion blog site.

The only criticism that I have, is that the book, could have delved into the realms of streaming media a little deeper. The company that I work for, weComm is actively involved in the mobile TV space and I was pivotal in the creation of our application for streaming TV, and therefore I was hoping that this topic would be covered in more detail. That aside, I was very impressed, the subject matter was covered very thoroughly, and I felt guided through the MMAPI as I was reading it.

I have a litte doubt and try to solve my problems talking with the writer email showed in the book, but I never received a anwser...

This is an intermediate-level book for JavaME buffs. The book is just as the title suggests ..its entirely focused on MMAPI. I think the author has done a great job of explaining the details of programming with MMAPI. Its written in a straightforward & meticulous manner and you don't get lost at any point of time. The illustration and examples in this book are done with the help of different devices and emulators like Sun WTK, Motorola, Benq emulators which gives you a hands-on-feel. The tips on querying device capabilities in different chapters are handy. If you are into JavaME MMAPI, you would find this book quite good.

The first three chapters introduce the MMAPI, its architecture & getting started with it. The fourth chapter on Media player lifecycle is quite comprehensive in its explanation of all the different Player states. The fifth chapter deals with network access issues of permissions & threads. The next two chapters delve into topics of using Tone Control and managing MIDIs both which have been earlier grey areas for me. Chapter 8 deals with Working with Audio and Video with more of code examples. The book rounds off with a case study of Mobile Blogging with a Companion blog site.