From eaa21b6870ba8bba4b0370e91f1941307c1c9681 Mon Sep 17 00:00:00 2001 From: Michael Niedermayer Date: Tue, 4 Oct 2011 00:14:48 +0200 Subject: [PATCH] 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 ea6331f8bbaf3343faec6ffe77a6218a016a3af5 Author: Ronald S. Bultje Date: Mon Jun 20 10:24:33 2011 -0400 h264-mt: fix deadlock in packets with multiple slices (e.g. MP4). --- libavcodec/h264.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/libavcodec/h264.c b/libavcodec/h264.c index 4a1050dc8a..07e61efb05 100644 --- a/libavcodec/h264.c +++ b/libavcodec/h264.c @@ -3710,9 +3710,13 @@ static int decode_nal_units(H264Context *h, const uint8_t *buf, int buf_size){ switch (hx->nal_unit_type) { case NAL_SPS: case NAL_PPS: + nals_needed = nal_index; + break; case NAL_IDR_SLICE: case NAL_SLICE: - nals_needed = nal_index; + init_get_bits(&hx->s.gb, ptr, bit_length); + if(!get_ue_golomb(&hx->s.gb)) + nals_needed = nal_index; } continue; }