mirror of https://git.ffmpeg.org/ffmpeg.git
H264: hotfix for speedloss on frame threading and h264 files with slices.
This fix is not ideal as it still limits the multithreading on field pictures
to the 2nd field only.
Ill try to fix it properly to allow both fields to decode concurrently but this
needs more work.
This bug exists since and was caused by:
commit ea6331f8bb
Author: Ronald S. Bultje <rsbultje@gmail.com>
Date: Mon Jun 20 10:24:33 2011 -0400
h264-mt: fix deadlock in packets with multiple slices (e.g. MP4).
This commit is contained in:
parent
a9255d3781
commit
eaa21b6870
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@ -3710,9 +3710,13 @@ static int decode_nal_units(H264Context *h, const uint8_t *buf, int buf_size){
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switch (hx->nal_unit_type) {
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switch (hx->nal_unit_type) {
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case NAL_SPS:
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case NAL_SPS:
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case NAL_PPS:
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case NAL_PPS:
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nals_needed = nal_index;
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break;
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case NAL_IDR_SLICE:
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case NAL_IDR_SLICE:
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case NAL_SLICE:
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case NAL_SLICE:
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nals_needed = nal_index;
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init_get_bits(&hx->s.gb, ptr, bit_length);
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if(!get_ue_golomb(&hx->s.gb))
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nals_needed = nal_index;
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}
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}
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continue;
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continue;
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}
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}
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