vda: cosmetic.

[ffmpeg] / libavcodec / utils.c

diff --git a/libavcodec/utils.c b/libavcodec/utils.c
index 03e367f4c2e89afa27fe30aa2a7167a152724ab1..b79e23e1c126014b63a807024bf479ab1b6c73aa 100644 (file)
--- a/libavcodec/utils.c
+++ b/libavcodec/utils.c
@@ -41,6 +41,7 @@
 #include "thread.h"
 #include "audioconvert.h"
 #include "internal.h"
+#include "bytestream.h"
 #include <stdlib.h>
 #include <stdarg.h>
 #include <limits.h>
@@ -764,6 +765,8 @@ int attribute_align_arg avcodec_open2(AVCodecContext *avctx, AVCodec *codec, AVD
             goto free_and_end;
         }
     }
+    if (!HAVE_THREADS && !(codec->capabilities & CODEC_CAP_AUTO_THREADS))
+        avctx->thread_count = 1;
 
     if (avctx->codec->max_lowres < avctx->lowres || avctx->lowres < 0) {
         av_log(avctx, AV_LOG_ERROR, "The maximum value for lowres supported by the decoder is %d\n",
@@ -932,6 +935,48 @@ static int64_t guess_correct_pts(AVCodecContext *ctx,
     return pts;
 }
 
+static void apply_param_change(AVCodecContext *avctx, AVPacket *avpkt)
+{
+    int size = 0;
+    const uint8_t *data;
+    uint32_t flags;
+
+    if (!(avctx->codec->capabilities & CODEC_CAP_PARAM_CHANGE))
+        return;
+
+    data = av_packet_get_side_data(avpkt, AV_PKT_DATA_PARAM_CHANGE, &size);
+    if (!data || size < 4)
+        return;
+    flags = bytestream_get_le32(&data);
+    size -= 4;
+    if (size < 4) /* Required for any of the changes */
+        return;
+    if (flags & AV_SIDE_DATA_PARAM_CHANGE_CHANNEL_COUNT) {
+        avctx->channels = bytestream_get_le32(&data);
+        size -= 4;
+    }
+    if (flags & AV_SIDE_DATA_PARAM_CHANGE_CHANNEL_LAYOUT) {
+        if (size < 8)
+            return;
+        avctx->channel_layout = bytestream_get_le64(&data);
+        size -= 8;
+    }
+    if (size < 4)
+        return;
+    if (flags & AV_SIDE_DATA_PARAM_CHANGE_SAMPLE_RATE) {
+        avctx->sample_rate = bytestream_get_le32(&data);
+        size -= 4;
+    }
+    if (flags & AV_SIDE_DATA_PARAM_CHANGE_DIMENSIONS) {
+        if (size < 8)
+            return;
+        avctx->width  = bytestream_get_le32(&data);
+        avctx->height = bytestream_get_le32(&data);
+        avcodec_set_dimensions(avctx, avctx->width, avctx->height);
+        size -= 8;
+    }
+}
+
 int attribute_align_arg avcodec_decode_video2(AVCodecContext *avctx, AVFrame *picture,
                          int *got_picture_ptr,
                          AVPacket *avpkt)
@@ -944,6 +989,7 @@ int attribute_align_arg avcodec_decode_video2(AVCodecContext *avctx, AVFrame *pi
 
     if((avctx->codec->capabilities & CODEC_CAP_DELAY) || avpkt->size || (avctx->active_thread_type&FF_THREAD_FRAME)){
         av_packet_split_side_data(avpkt);
+        apply_param_change(avctx, avpkt);
         avctx->pkt = avpkt;
         if (HAVE_THREADS && avctx->active_thread_type&FF_THREAD_FRAME)
              ret = ff_thread_decode_frame(avctx, picture, got_picture_ptr,
@@ -1044,11 +1090,15 @@ int attribute_align_arg avcodec_decode_audio4(AVCodecContext *avctx,
 
     if ((avctx->codec->capabilities & CODEC_CAP_DELAY) || avpkt->size) {
         av_packet_split_side_data(avpkt);
+        apply_param_change(avctx, avpkt);
+
         avctx->pkt = avpkt;
         ret = avctx->codec->decode(avctx, frame, got_frame_ptr, avpkt);
         if (ret >= 0 && *got_frame_ptr) {
             avctx->frame_number++;
             frame->pkt_dts = avpkt->dts;
+            if (frame->format == AV_SAMPLE_FMT_NONE)
+                frame->format = avctx->sample_fmt;
         }
     }
     return ret;
@@ -1371,6 +1421,7 @@ unsigned avcodec_version( void )
     av_assert0(CODEC_ID_ADPCM_G722==69660);
     av_assert0(CODEC_ID_BMV_AUDIO==86071);
     av_assert0(CODEC_ID_SRT==94216);
+    av_assert0(LIBAVCODEC_VERSION_MICRO >= 100);
 
   return LIBAVCODEC_VERSION_INT;
 }