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Add color decoding tests to SsaDecoderTest, remove SubStation Alpha colors" from media.exolist.json.

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This commit is contained in:
Arnold Szabo 2021-01-26 22:57:10 +01:00
parent f8a47bc86d
commit 28a3921a6a
3 changed files with 68 additions and 7 deletions
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7
demos/main/src/main/assets/media.exolist.json
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@ -506,13 +506,6 @@
"subtitle_mime_type": "text/x-ssa",
"subtitle_language": "en"
},
{
"name": "SubStation Alpha colors",
"uri": "https://storage.googleapis.com/exoplayer-test-media-1/gen-3/screens/dash-vod-single-segment/video-avc-baseline-480.mp4",
"subtitle_uri": "https://drive.google.com/uc?export=download&id=13EdW4Qru-vQerUlwS_Ht5Cely_Tn0tQe",
"subtitle_mime_type": "text/x-ssa",
"subtitle_language": "en"
},
{
"name": "MPEG-4 Timed Text",
"uri": "https://storage.googleapis.com/exoplayer-test-media-1/mp4/dizzy-with-tx3g.mp4"

44
library/core/src/test/java/com/google/android/exoplayer2/text/ssa/SsaDecoderTest.java
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@ -18,7 +18,10 @@ package com.google.android.exoplayer2.text.ssa;
import static com.google.common.truth.Truth.assertThat;
import static com.google.common.truth.Truth.assertWithMessage;
import android.graphics.Color;
import android.text.Layout;
import android.text.SpannableString;
import android.text.style.ForegroundColorSpan;
import androidx.test.core.app.ApplicationProvider;
import androidx.test.ext.junit.runners.AndroidJUnit4;
import com.google.android.exoplayer2.testutil.TestUtil;
@ -44,6 +47,7 @@ public final class SsaDecoderTest {
private static final String INVALID_TIMECODES = "media/ssa/invalid_timecodes";
private static final String INVALID_POSITIONS = "media/ssa/invalid_positioning";
private static final String POSITIONS_WITHOUT_PLAYRES = "media/ssa/positioning_without_playres";
private static final String COLORS = "media/ssa/colors";
@Test
public void decodeEmpty() throws IOException {
@ -267,6 +271,46 @@ public final class SsaDecoderTest {
assertTypicalCue3(subtitle, 0);
}
@Test
public void decodeColors() throws IOException {
SsaDecoder decoder = new SsaDecoder();
byte[] bytes = TestUtil.getByteArray(ApplicationProvider.getApplicationContext(), COLORS);
Subtitle subtitle = decoder.decode(bytes, bytes.length, false);
assertThat(subtitle.getEventTimeCount()).isEqualTo(12);
// &H000000FF (AABBGGRR) -> #FFFF0000 (AARRGGBB)
Cue firstCue = Iterables.getOnlyElement(subtitle.getCues(subtitle.getEventTime(0)));
ForegroundColorSpan firstSpan = getSpan(firstCue, ForegroundColorSpan.class);
assertThat(firstSpan.getForegroundColor()).isEqualTo(Color.RED);
// &H0000FFFF (AABBGGRR) -> #FFFFFF00 (AARRGGBB)
Cue secondCue = Iterables.getOnlyElement(subtitle.getCues(subtitle.getEventTime(2)));
ForegroundColorSpan secondSpan = getSpan(secondCue, ForegroundColorSpan.class);
assertThat(secondSpan.getForegroundColor()).isEqualTo(Color.YELLOW);
// &HFF00 (GGRR) -> #FF00FF00 (AARRGGBB)
Cue thirdClue = Iterables.getOnlyElement(subtitle.getCues(subtitle.getEventTime(4)));
ForegroundColorSpan thirdSpan = getSpan(thirdClue, ForegroundColorSpan.class);
assertThat(thirdSpan.getForegroundColor()).isEqualTo(Color.GREEN);
// &H400000FF (AABBGGRR) -> #BFFF0000 (AARRGGBB) -> -1073807360
Cue forthClue = Iterables.getOnlyElement(subtitle.getCues(subtitle.getEventTime(6)));
ForegroundColorSpan forthSpan = getSpan(forthClue, ForegroundColorSpan.class);
assertThat(forthSpan.getForegroundColor()).isEqualTo(-1073807360);
// 16711680 (AABBGGRR) -> &H00FF0000 (AABBGGRR) -> #FF0000FF (AARRGGBB) -> -16776961
Cue fifthClue = Iterables.getOnlyElement(subtitle.getCues(subtitle.getEventTime(8)));
ForegroundColorSpan fifthSpan = getSpan(fifthClue, ForegroundColorSpan.class);
assertThat(fifthSpan.getForegroundColor()).isEqualTo(-16776961);
// 2164195328 (AABBGGRR) -> &H80FF0000 (AABBGGRR) -> #7F0000FF (AARRGGBB) -> 2130706687
Cue sixthClue = Iterables.getOnlyElement(subtitle.getCues(subtitle.getEventTime(10)));
ForegroundColorSpan sixthSpan = getSpan(sixthClue, ForegroundColorSpan.class);
assertThat(sixthSpan.getForegroundColor()).isEqualTo(2130706687);
}
private static <T> T getSpan(Cue cue, Class<T> clazz) {
return getSpan(cue, 0, cue.text.length(), clazz);
}
private static <T> T getSpan(Cue cue, int start, int end, Class<T> clazz) {
return SpannableString.valueOf(cue.text).getSpans(start, end, clazz)[0];
}
private static void assertTypicalCue1(Subtitle subtitle, int eventIndex) {
assertThat(subtitle.getEventTime(eventIndex)).isEqualTo(0);
assertThat(subtitle.getCues(subtitle.getEventTime(eventIndex)).get(0).text.toString())

24
testdata/src/test/assets/media/ssa/colors vendored Normal file
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@ -0,0 +1,24 @@
[Script Info]
Title: Coloring
Script Type: V4.00+
PlayResX: 1280
PlayResY: 720
[V4+ Styles]
Format: Name, Fontname, Fontsize, PrimaryColour, SecondaryColour, OutlineColour, BackColour, Bold, Italic, Underline, StrikeOut, ScaleX, ScaleY, Spacing, Angle, BorderStyle, Outline, Shadow, Alignment, MarginL, MarginR, MarginV, Encoding
Style: PrimaryColourStyleHexRed ,Roboto,50,&H000000FF,&H000000FF,&H00000000,&H00000000,0,0,0,0,100,100,0,0,1,3,0,2,50,50,70,1
Style: PrimaryColourStyleHexYellow ,Roboto,50,&H0000FFFF,&H000000FF,&H00000000,&H00000000,0,0,0,0,100,100,0,0,1,3,0,2,50,50,70,1
Style: PrimaryColourStyleHexGreen ,Roboto,50,&HFF00 ,&H000000FF,&H00000000,&H00000000,0,0,0,0,100,100,0,0,1,3,0,2,50,50,70,1
Style: PrimaryColourStyleHexAlpha ,Roboto,50,&H400000FF,&H000000FF,&H00000000,&H00000000,0,0,0,0,100,100,0,0,1,3,0,2,50,50,70,1
Style: PrimaryColourStyleDecimal ,Roboto,50,16711680 ,&H000000FF,&H00000000,&H00000000,0,0,0,0,100,100,0,0,1,3,0,2,50,50,70,1
Style: PrimaryColourStyleDecimalAlpha ,Roboto,50,2164195328,&H000000FF,&H00000000,&H00000000,0,0,0,0,100,100,0,0,1,3,0,2,50,50,70,1
[Events]
Format: Layer, Start, End, Style, Name, MarginL, MarginR, MarginV, Effect, Text
Dialogue: 0,0:00:00.95,0:00:03.11,PrimaryColourStyleHexRed ,Arnold,0,0,0,,First line in RED (&H000000FF).
Dialogue: 0,0:00:04.50,0:00:07.50,PrimaryColourStyleHexYellow ,Arnold,0,0,0,,Second line in YELLOW (&H0000FFFF).
Dialogue: 0,0:00:08.50,0:00:11.50,PrimaryColourStyleHexGreen ,Arnold,0,0,0,,Third line in GREEN (leading zeros &HFF00).
Dialogue: 0,0:00:12.50,0:00:15.50,PrimaryColourStyleHexAlpha ,Arnold,0,0,0,,Fourth line in RED with alpha (&H400000FF).
Dialogue: 0,0:00:16.50,0:00:19.50,PrimaryColourStyleDecimal ,Arnold,0,0,0,,Fifth line in BLUE (16711680).
Dialogue: 0,0:00:20.70,0:00:23.00,PrimaryColourStyleDecimalAlpha ,Arnold,0,0,0,,Sixth line in BLUE with alpha (2164195328).