fix: correctly initialize frame type for tx3g and mov_text subtitles - #2321
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shubhrai23 wants to merge 2 commits into
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fix: correctly initialize frame type for tx3g and mov_text subtitles#2321shubhrai23 wants to merge 2 commits into
shubhrai23 wants to merge 2 commits into
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Pull request overview
This PR fixes MP4 subtitle timestamp initialization by ensuring subtitle-only tracks (including mov_text/tx3g) get an I-frame picture type so set_fts() can set min_pts from the first sample.
Changes:
- Expand the media-type check so
GF_ISOM_MEDIA_TEXTandGF_ISOM_MEDIA_SUBTtracks also forcecurrent_picture_coding_type = CCX_FRAME_TYPE_I_FRAMEbefore callingset_fts(). - Align MP4 subtitle handling with how
tx3gtracks are already dispatched later in the same loop.
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| @@ -1125,7 +1125,7 @@ int processmp4(struct lib_ccx_ctx *ctx, struct ccx_s_mp4Cfg *cfg, char *file) | |||
| // so that set_fts() will set min_pts from the first sample. | |||
| // Without video frames, frame type would stay Unknown and | |||
| // min_pts would never be set, causing broken timestamps. | |||
| if (type == GF_ISOM_MEDIA_CLOSED_CAPTION) | |||
| if (type == GF_ISOM_MEDIA_CLOSED_CAPTION || type == GF_ISOM_MEDIA_TEXT || type == GF_ISOM_MEDIA_SUBT) | |||
| // Without video frames, frame type would stay Unknown and | ||
| // min_pts would never be set, causing broken timestamps. | ||
| if (type == GF_ISOM_MEDIA_CLOSED_CAPTION) | ||
| if (type == GF_ISOM_MEDIA_CLOSED_CAPTION || type == GF_ISOM_MEDIA_TEXT || type == GF_ISOM_MEDIA_SUBT) |
Collaborator
CCExtractor CI platform finished running the test files on windows. Below is a summary of the test results, when compared to test for commit 128175e...:
Your PR breaks these cases:
NOTE: The following tests have been failing on the master branch as well as the PR:
Congratulations: Merging this PR would fix the following tests:
It seems that not all tests were passed completely. This is an indication that the output of some files is not as expected (but might be according to you). Check the result page for more info. |
Collaborator
CCExtractor CI platform finished running the test files on linux. Below is a summary of the test results, when compared to test for commit 128175e...:
Your PR breaks these cases:
NOTE: The following tests have been failing on the master branch as well as the PR:
Congratulations: Merging this PR would fix the following tests:
It seems that not all tests were passed completely. This is an indication that the output of some files is not as expected (but might be according to you). Check the result page for more info. |
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This PR fixes MP4 subtitle timestamp initialization by ensuring subtitle-only tracks (including \mov_text/\ x3g) get an I-frame picture type so \set_fts()\ can set \min_pts\ from the first sample.