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Clean up MP4/FMP4 shouldParse methods.

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This commit is contained in:
Oliver Woodman 2015-11-17 15:38:54 +00:00
parent 3cbb1fa1b9
commit 269757cb3e
3 changed files with 23 additions and 33 deletions
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1
library/src/main/java/com/google/android/exoplayer/extractor/mp4/Atom.java
View file

@ -100,7 +100,6 @@ import java.util.List;
public static final int TYPE_pasp = Util.getIntegerCodeForString("pasp"); public static final int TYPE_pasp = Util.getIntegerCodeForString("pasp");
public static final int TYPE_TTML = Util.getIntegerCodeForString("TTML"); public static final int TYPE_TTML = Util.getIntegerCodeForString("TTML");
public static final int TYPE_vmhd = Util.getIntegerCodeForString("vmhd"); public static final int TYPE_vmhd = Util.getIntegerCodeForString("vmhd");
public static final int TYPE_smhd = Util.getIntegerCodeForString("smhd");
public static final int TYPE_mp4v = Util.getIntegerCodeForString("mp4v"); public static final int TYPE_mp4v = Util.getIntegerCodeForString("mp4v");
public static final int TYPE_stts = Util.getIntegerCodeForString("stts"); public static final int TYPE_stts = Util.getIntegerCodeForString("stts");
public static final int TYPE_stss = Util.getIntegerCodeForString("stss"); public static final int TYPE_stss = Util.getIntegerCodeForString("stss");

49
library/src/main/java/com/google/android/exoplayer/extractor/mp4/FragmentedMp4Extractor.java
View file

@ -226,20 +226,18 @@ public final class FragmentedMp4Extractor implements Extractor {
return true; return true;
} }
if (shouldParseAtom(atomType)) { if (shouldParseContainerAtom(atomType)) {
if (shouldParseContainerAtom(atomType)) { long endPosition = input.getPosition() + atomSize - Atom.HEADER_SIZE;
long endPosition = input.getPosition() + atomSize - Atom.HEADER_SIZE; containerAtoms.add(new ContainerAtom(atomType, endPosition));
containerAtoms.add(new ContainerAtom(atomType, endPosition)); enterReadingAtomHeaderState();
enterReadingAtomHeaderState(); } else if (shouldParseLeafAtom(atomType)) {
} else { // We don't support parsing of leaf atoms that define extended atom sizes, or that have
// We don't support parsing of leaf atoms that define extended atom sizes, or that have // lengths greater than Integer.MAX_VALUE.
// lengths greater than Integer.MAX_VALUE. checkState(atomHeaderBytesRead == Atom.HEADER_SIZE);
checkState(atomHeaderBytesRead == Atom.HEADER_SIZE); checkState(atomSize <= Integer.MAX_VALUE);
checkState(atomSize <= Integer.MAX_VALUE); atomData = new ParsableByteArray((int) atomSize);
atomData = new ParsableByteArray((int) atomSize); System.arraycopy(atomHeader.data, 0, atomData.data, 0, Atom.HEADER_SIZE);
System.arraycopy(atomHeader.data, 0, atomData.data, 0, Atom.HEADER_SIZE); parserState = STATE_READING_ATOM_PAYLOAD;
parserState = STATE_READING_ATOM_PAYLOAD;
}
} else { } else {
// We don't support skipping of atoms that have lengths greater than Integer.MAX_VALUE. // We don't support skipping of atoms that have lengths greater than Integer.MAX_VALUE.
checkState(atomSize <= Integer.MAX_VALUE); checkState(atomSize <= Integer.MAX_VALUE);
@ -795,25 +793,20 @@ public final class FragmentedMp4Extractor implements Extractor {
return 1 + vectorSize + subsampleDataLength; return 1 + vectorSize + subsampleDataLength;
} }
/** Returns whether the extractor should parse an atom with type {@code atom}. */ /** Returns whether the extractor should parse a leaf atom with type {@code atom}. */
private static boolean shouldParseAtom(int atom) { private static boolean shouldParseLeafAtom(int atom) {
return atom == Atom.TYPE_avc1 || atom == Atom.TYPE_avc3 || atom == Atom.TYPE_esds return atom == Atom.TYPE_hdlr || atom == Atom.TYPE_mdhd || atom == Atom.TYPE_mvhd
|| atom == Atom.TYPE_hdlr || atom == Atom.TYPE_mdat || atom == Atom.TYPE_mdhd || atom == Atom.TYPE_sidx || atom == Atom.TYPE_stsd || atom == Atom.TYPE_tfdt
|| atom == Atom.TYPE_moof || atom == Atom.TYPE_moov || atom == Atom.TYPE_mp4a || atom == Atom.TYPE_tfhd || atom == Atom.TYPE_tkhd || atom == Atom.TYPE_trex
|| atom == Atom.TYPE_mvhd || atom == Atom.TYPE_sidx || atom == Atom.TYPE_stsd || atom == Atom.TYPE_trun || atom == Atom.TYPE_pssh || atom == Atom.TYPE_saiz
|| atom == Atom.TYPE_tfdt || atom == Atom.TYPE_tfhd || atom == Atom.TYPE_tkhd || atom == Atom.TYPE_saio || atom == Atom.TYPE_senc || atom == Atom.TYPE_uuid;
|| atom == Atom.TYPE_traf || atom == Atom.TYPE_trak || atom == Atom.TYPE_trex
|| atom == Atom.TYPE_trun || atom == Atom.TYPE_mvex || atom == Atom.TYPE_mdia
|| atom == Atom.TYPE_minf || atom == Atom.TYPE_stbl || atom == Atom.TYPE_pssh
|| atom == Atom.TYPE_saiz || atom == Atom.TYPE_saio || atom == Atom.TYPE_uuid
|| atom == Atom.TYPE_senc || atom == Atom.TYPE_pasp || atom == Atom.TYPE_s263;
} }
/** Returns whether the extractor should parse a container atom with type {@code atom}. */ /** Returns whether the extractor should parse a container atom with type {@code atom}. */
private static boolean shouldParseContainerAtom(int atom) { private static boolean shouldParseContainerAtom(int atom) {
return atom == Atom.TYPE_moov || atom == Atom.TYPE_trak || atom == Atom.TYPE_mdia return atom == Atom.TYPE_moov || atom == Atom.TYPE_trak || atom == Atom.TYPE_mdia
|| atom == Atom.TYPE_minf || atom == Atom.TYPE_stbl || atom == Atom.TYPE_avcC || atom == Atom.TYPE_minf || atom == Atom.TYPE_stbl || atom == Atom.TYPE_moof
|| atom == Atom.TYPE_moof || atom == Atom.TYPE_traf || atom == Atom.TYPE_mvex; || atom == Atom.TYPE_traf || atom == Atom.TYPE_mvex;
} }
} }

6
library/src/main/java/com/google/android/exoplayer/extractor/mp4/Mp4Extractor.java
View file

@ -384,12 +384,10 @@ public final class Mp4Extractor implements Extractor, SeekMap {
/** Returns whether the extractor should parse a leaf atom with type {@code atom}. */ /** Returns whether the extractor should parse a leaf atom with type {@code atom}. */
private static boolean shouldParseLeafAtom(int atom) { private static boolean shouldParseLeafAtom(int atom) {
return atom == Atom.TYPE_mdhd || atom == Atom.TYPE_mvhd || atom == Atom.TYPE_hdlr return atom == Atom.TYPE_mdhd || atom == Atom.TYPE_mvhd || atom == Atom.TYPE_hdlr
|| atom == Atom.TYPE_vmhd || atom == Atom.TYPE_smhd || atom == Atom.TYPE_stsd || atom == Atom.TYPE_stsd || atom == Atom.TYPE_stts || atom == Atom.TYPE_stss
|| atom == Atom.TYPE_avc1 || atom == Atom.TYPE_avcC || atom == Atom.TYPE_mp4a
|| atom == Atom.TYPE_esds || atom == Atom.TYPE_stts || atom == Atom.TYPE_stss
|| atom == Atom.TYPE_ctts || atom == Atom.TYPE_elst || atom == Atom.TYPE_stsc || atom == Atom.TYPE_ctts || atom == Atom.TYPE_elst || atom == Atom.TYPE_stsc
|| atom == Atom.TYPE_stsz || atom == Atom.TYPE_stco || atom == Atom.TYPE_co64 || atom == Atom.TYPE_stsz || atom == Atom.TYPE_stco || atom == Atom.TYPE_co64
|| atom == Atom.TYPE_tkhd || atom == Atom.TYPE_s263; || atom == Atom.TYPE_tkhd;
} }
/** Returns whether the extractor should parse a container atom with type {@code atom}. */ /** Returns whether the extractor should parse a container atom with type {@code atom}. */