From 38ecc3702dabbea09230f6d6333f59e74f5d1c12 Mon Sep 17 00:00:00 2001
From: Anton Khirnov <anton@khirnov.net>
Date: Sun, 27 Oct 2013 13:00:37 +0100
Subject: pthread: store thread contexts in AVCodecInternal instead of
 AVCodecContext

It's a private field, it should not be visible to callers.

Deprecate AVCodecContext.thread_opaque
---
 libavcodec/pthread_frame.c | 43 ++++++++++++++++++++++---------------------
 1 file changed, 22 insertions(+), 21 deletions(-)

(limited to 'libavcodec/pthread_frame.c')

diff --git a/libavcodec/pthread_frame.c b/libavcodec/pthread_frame.c
index d16078f454..c2d12c854f 100644
--- a/libavcodec/pthread_frame.c
+++ b/libavcodec/pthread_frame.c
@@ -46,7 +46,7 @@
 #include "libavutil/mem.h"
 
 /**
- * Context used by codec threads and stored in their AVCodecContext thread_opaque.
+ * Context used by codec threads and stored in their AVCodecInternal thread_ctx.
  */
 typedef struct PerThreadContext {
     struct FrameThreadContext *parent;
@@ -93,7 +93,7 @@ typedef struct PerThreadContext {
 } PerThreadContext;
 
 /**
- * Context stored in the client AVCodecContext thread_opaque.
+ * Context stored in the client AVCodecInternal thread_ctx.
  */
 typedef struct FrameThreadContext {
     PerThreadContext *threads;     ///< The contexts for each thread.
@@ -365,7 +365,7 @@ int ff_thread_decode_frame(AVCodecContext *avctx,
                            AVFrame *picture, int *got_picture_ptr,
                            AVPacket *avpkt)
 {
-    FrameThreadContext *fctx = avctx->thread_opaque;
+    FrameThreadContext *fctx = avctx->internal->thread_ctx;
     int finished = fctx->next_finished;
     PerThreadContext *p;
     int err;
@@ -441,7 +441,7 @@ void ff_thread_report_progress(ThreadFrame *f, int n, int field)
 
     if (!progress || progress[field] >= n) return;
 
-    p = f->owner->thread_opaque;
+    p = f->owner->internal->thread_ctx;
 
     if (f->owner->debug&FF_DEBUG_THREADS)
         av_log(f->owner, AV_LOG_DEBUG, "%p finished %d field %d\n", progress, n, field);
@@ -459,7 +459,7 @@ void ff_thread_await_progress(ThreadFrame *f, int n, int field)
 
     if (!progress || progress[field] >= n) return;
 
-    p = f->owner->thread_opaque;
+    p = f->owner->internal->thread_ctx;
 
     if (f->owner->debug&FF_DEBUG_THREADS)
         av_log(f->owner, AV_LOG_DEBUG, "thread awaiting %d field %d from %p\n", n, field, progress);
@@ -471,7 +471,7 @@ void ff_thread_await_progress(ThreadFrame *f, int n, int field)
 }
 
 void ff_thread_finish_setup(AVCodecContext *avctx) {
-    PerThreadContext *p = avctx->thread_opaque;
+    PerThreadContext *p = avctx->internal->thread_ctx;
 
     if (!(avctx->active_thread_type&FF_THREAD_FRAME)) return;
 
@@ -500,7 +500,7 @@ static void park_frame_worker_threads(FrameThreadContext *fctx, int thread_count
 
 void ff_frame_thread_free(AVCodecContext *avctx, int thread_count)
 {
-    FrameThreadContext *fctx = avctx->thread_opaque;
+    FrameThreadContext *fctx = avctx->internal->thread_ctx;
     const AVCodec *codec = avctx->codec;
     int i;
 
@@ -544,16 +544,16 @@ void ff_frame_thread_free(AVCodecContext *avctx, int thread_count)
 
         if (i) {
             av_freep(&p->avctx->priv_data);
-            av_freep(&p->avctx->internal);
             av_freep(&p->avctx->slice_offset);
         }
 
+        av_freep(&p->avctx->internal);
         av_freep(&p->avctx);
     }
 
     av_freep(&fctx->threads);
     pthread_mutex_destroy(&fctx->buffer_mutex);
-    av_freep(&avctx->thread_opaque);
+    av_freep(&avctx->internal->thread_ctx);
 }
 
 int ff_frame_thread_init(AVCodecContext *avctx)
@@ -583,7 +583,7 @@ int ff_frame_thread_init(AVCodecContext *avctx)
         return 0;
     }
 
-    avctx->thread_opaque = fctx = av_mallocz(sizeof(FrameThreadContext));
+    avctx->internal->thread_ctx = fctx = av_mallocz(sizeof(FrameThreadContext));
 
     fctx->threads = av_mallocz(sizeof(PerThreadContext) * thread_count);
     pthread_mutex_init(&fctx->buffer_mutex, NULL);
@@ -608,9 +608,16 @@ int ff_frame_thread_init(AVCodecContext *avctx)
         }
 
         *copy = *src;
-        copy->thread_opaque = p;
         copy->pkt = &p->avpkt;
 
+        copy->internal = av_malloc(sizeof(AVCodecInternal));
+        if (!copy->internal) {
+            err = AVERROR(ENOMEM);
+            goto error;
+        }
+        *copy->internal = *src->internal;
+        copy->internal->thread_ctx = p;
+
         if (!i) {
             src = copy;
 
@@ -625,12 +632,6 @@ int ff_frame_thread_init(AVCodecContext *avctx)
                 goto error;
             }
             memcpy(copy->priv_data, src->priv_data, codec->priv_data_size);
-            copy->internal = av_malloc(sizeof(AVCodecInternal));
-            if (!copy->internal) {
-                err = AVERROR(ENOMEM);
-                goto error;
-            }
-            *copy->internal = *src->internal;
             copy->internal->is_copy = 1;
 
             if (codec->init_thread_copy)
@@ -654,9 +655,9 @@ error:
 void ff_thread_flush(AVCodecContext *avctx)
 {
     int i;
-    FrameThreadContext *fctx = avctx->thread_opaque;
+    FrameThreadContext *fctx = avctx->internal->thread_ctx;
 
-    if (!avctx->thread_opaque) return;
+    if (!fctx) return;
 
     park_frame_worker_threads(fctx, avctx->thread_count);
     if (fctx->prev_thread) {
@@ -681,7 +682,7 @@ void ff_thread_flush(AVCodecContext *avctx)
 
 int ff_thread_get_buffer(AVCodecContext *avctx, ThreadFrame *f, int flags)
 {
-    PerThreadContext *p = avctx->thread_opaque;
+    PerThreadContext *p = avctx->internal->thread_ctx;
     int err;
 
     f->owner = avctx;
@@ -743,7 +744,7 @@ FF_ENABLE_DEPRECATION_WARNINGS
 
 void ff_thread_release_buffer(AVCodecContext *avctx, ThreadFrame *f)
 {
-    PerThreadContext *p = avctx->thread_opaque;
+    PerThreadContext *p = avctx->internal->thread_ctx;
     FrameThreadContext *fctx;
     AVFrame *dst, *tmp;
 FF_DISABLE_DEPRECATION_WARNINGS
-- 
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