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During file type detection the MPEG TS reader uses the AAC parser to detect the multiplex mode. Later on it creates the AAC framer which in turn contains its own instance of an AAC parser. This new instance does its own multiplex mode detection. For LOAS/LATM the detection can only succeed if the program mux configuration is found. If it is not part of the first first PES packet, then the framer's instance may get the detection wrong: it does find LOAS/LATM headers, but as the program mux configuration hasn't been parsed yet it'll continue detection and often happen over ADTS headers instead. The second detection is not only harmful, it's also superfluous as the result is already known to the upper layer (the MPEG TS reader). Therefore pass that information through from the reader via the framer to the framer's parser. Fixes #1957.
6 lines
251 B
Ruby
Executable File
6 lines
251 B
Ruby
Executable File
#!/usr/bin/ruby -w
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# T_596mpeg_ts_aac_loas_latm_misdetected_as_adts
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describe "mkvmerge / MPEG TS AAC with LOAS/LATM multiplex detected as ADTS multiplex"
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test_merge "data/ts/aac_loas_latm_misdetected_as_adts.ts", :args => "--no-subtitles --no-video"
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