H264Reader: Add missing propagation of max_num_reorder_frames

This method is already called below in the
`else if (sps.isCompleted())` block which applies when
`hasOutputFormat == true`, but this is only ever entered if we are
parsing SPS and PPS NAL units **after** we've emitted a format, which
is only the case if
`DefaultTsPayloadReaderFactory.FLAG_DETECT_ACCESS_UNITS` is set (which
it isn't by default).

The equivalent call in `H265Reader` is already inside the
`if (!hasOutputFormat)` block, so doesn't need a similar fix.

#cherrypick

PiperOrigin-RevId: 689809529

RELEASENOTES.md

@@ -37,6 +37,9 @@
 *   Audio:
 *   Video:
 *   Text:
+    *   Fix CEA-608 subtitles in H.264 MPEG-TS streams not being output (this
+        was broken in `1.5.0-alpha01` by
+        https://github.com/androidx/media/commit/03a205f220ecf7681f85f8a752227e3986e257ff).
 *   Metadata:
 *   Image:
 *   DRM:

libraries/extractor/src/main/java/androidx/media3/extractor/ts/H264Reader.java

@@ -233,6 +233,7 @@ public final class H264Reader implements ElementaryStreamReader {
                   .setMaxNumReorderSamples(spsData.maxNumReorderFrames)
                   .build());
           hasOutputFormat = true;
+          seiReader.setReorderingQueueSize(spsData.maxNumReorderFrames);
           sampleReader.putSps(spsData);
           sampleReader.putPps(ppsData);
           sps.reset();