From 45c24f05d023a2cd8289ed40a13708392ce2e6a4 Mon Sep 17 00:00:00 2001
From: Moonchild <mcwerewolf@gmail.com>
Date: Mon, 1 Oct 2018 15:25:04 +0200
Subject: Revert "Update ffvpx code to 4.0.2"

---
 media/ffvpx/libavcodec/parser.c | 86 +++++------------------------------------
 1 file changed, 9 insertions(+), 77 deletions(-)

(limited to 'media/ffvpx/libavcodec/parser.c')

diff --git a/media/ffvpx/libavcodec/parser.c b/media/ffvpx/libavcodec/parser.c
index f43b197d5..670680ea7 100644
--- a/media/ffvpx/libavcodec/parser.c
+++ b/media/ffvpx/libavcodec/parser.c
@@ -25,108 +25,40 @@
 #include <string.h>
 
 #include "libavutil/avassert.h"
+#include "libavutil/atomic.h"
 #include "libavutil/internal.h"
 #include "libavutil/mem.h"
-#include "libavutil/thread.h"
 
 #include "internal.h"
 #include "parser.h"
 
-/* Parsers */
-extern AVCodecParser ff_aac_parser;
-extern AVCodecParser ff_aac_latm_parser;
-extern AVCodecParser ff_ac3_parser;
-extern AVCodecParser ff_adx_parser;
-extern AVCodecParser ff_bmp_parser;
-extern AVCodecParser ff_cavsvideo_parser;
-extern AVCodecParser ff_cook_parser;
-extern AVCodecParser ff_dca_parser;
-extern AVCodecParser ff_dirac_parser;
-extern AVCodecParser ff_dnxhd_parser;
-extern AVCodecParser ff_dpx_parser;
-extern AVCodecParser ff_dvaudio_parser;
-extern AVCodecParser ff_dvbsub_parser;
-extern AVCodecParser ff_dvdsub_parser;
-extern AVCodecParser ff_dvd_nav_parser;
-extern AVCodecParser ff_flac_parser;
-extern AVCodecParser ff_g729_parser;
-extern AVCodecParser ff_gsm_parser;
-extern AVCodecParser ff_h261_parser;
-extern AVCodecParser ff_h263_parser;
-extern AVCodecParser ff_h264_parser;
-extern AVCodecParser ff_hevc_parser;
-extern AVCodecParser ff_mjpeg_parser;
-extern AVCodecParser ff_mlp_parser;
-extern AVCodecParser ff_mpeg4video_parser;
-extern AVCodecParser ff_mpegaudio_parser;
-extern AVCodecParser ff_mpegvideo_parser;
-extern AVCodecParser ff_opus_parser;
-extern AVCodecParser ff_png_parser;
-extern AVCodecParser ff_pnm_parser;
-extern AVCodecParser ff_rv30_parser;
-extern AVCodecParser ff_rv40_parser;
-extern AVCodecParser ff_sbc_parser;
-extern AVCodecParser ff_sipr_parser;
-extern AVCodecParser ff_tak_parser;
-extern AVCodecParser ff_vc1_parser;
-extern AVCodecParser ff_vorbis_parser;
-extern AVCodecParser ff_vp3_parser;
-extern AVCodecParser ff_vp8_parser;
-extern AVCodecParser ff_vp9_parser;
-extern AVCodecParser ff_xma_parser;
-
-#include "libavcodec/parser_list.c"
-
-static AVOnce av_parser_next_init = AV_ONCE_INIT;
-
-static void av_parser_init_next(void)
-{
-    AVCodecParser *prev = NULL, *p;
-    int i = 0;
-    while ((p = (AVCodecParser*)parser_list[i++])) {
-        if (prev)
-            prev->next = p;
-        prev = p;
-    }
-}
+static AVCodecParser *av_first_parser = NULL;
 
 AVCodecParser *av_parser_next(const AVCodecParser *p)
 {
-    ff_thread_once(&av_parser_next_init, av_parser_init_next);
-
     if (p)
         return p->next;
     else
-        return (AVCodecParser*)parser_list[0];
-}
-
-const AVCodecParser *av_parser_iterate(void **opaque)
-{
-    uintptr_t i = (uintptr_t)*opaque;
-    const AVCodecParser *p = parser_list[i];
-
-    if (p)
-        *opaque = (void*)(i + 1);
-
-    return p;
+        return av_first_parser;
 }
 
 void av_register_codec_parser(AVCodecParser *parser)
 {
-    ff_thread_once(&av_parser_next_init, av_parser_init_next);
+    do {
+        parser->next = av_first_parser;
+    } while (parser->next != avpriv_atomic_ptr_cas((void * volatile *)&av_first_parser, parser->next, parser));
 }
 
 AVCodecParserContext *av_parser_init(int codec_id)
 {
     AVCodecParserContext *s = NULL;
-    const AVCodecParser *parser;
-    void *i = 0;
+    AVCodecParser *parser;
     int ret;
 
     if (codec_id == AV_CODEC_ID_NONE)
         return NULL;
 
-    while ((parser = av_parser_iterate(&i))) {
+    for (parser = av_first_parser; parser; parser = parser->next) {
         if (parser->codec_ids[0] == codec_id ||
             parser->codec_ids[1] == codec_id ||
             parser->codec_ids[2] == codec_id ||
@@ -140,7 +72,7 @@ found:
     s = av_mallocz(sizeof(AVCodecParserContext));
     if (!s)
         goto err_out;
-    s->parser = (AVCodecParser*)parser;
+    s->parser = parser;
     s->priv_data = av_mallocz(parser->priv_data_size);
     if (!s->priv_data)
         goto err_out;
-- 
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