aacsbr: prevent multiple ff_aac_sbr_ctx_init()
[ffmpeg.git] / libavcodec / 8bps.c
index 4757057..8ae0185 100644 (file)
@@ -50,6 +50,8 @@ typedef struct EightBpsContext {
 
         unsigned char planes;
         unsigned char planemap[4];
+
+        uint32_t pal[256];
 } EightBpsContext;
 
 
@@ -129,13 +131,16 @@ static int decode_frame(AVCodecContext *avctx, void *data, int *data_size, AVPac
                 }
         }
 
-        if (avctx->palctrl) {
-                memcpy (c->pic.data[1], avctx->palctrl->palette, AVPALETTE_SIZE);
-                if (avctx->palctrl->palette_changed) {
+        if (avctx->bits_per_coded_sample <= 8) {
+                const uint8_t *pal = av_packet_get_side_data(avpkt,
+                                                             AV_PKT_DATA_PALETTE,
+                                                             NULL);
+                if (pal) {
                         c->pic.palette_has_changed = 1;
-                        avctx->palctrl->palette_changed = 0;
-                } else
-                        c->pic.palette_has_changed = 0;
+                        memcpy(c->pal, pal, AVPALETTE_SIZE);
+                }
+
+                memcpy (c->pic.data[1], c->pal, AVPALETTE_SIZE);
         }
 
         *data_size = sizeof(AVFrame);
@@ -157,6 +162,7 @@ static av_cold int decode_init(AVCodecContext *avctx)
 
         c->avctx = avctx;
 
+        avcodec_get_frame_defaults(&c->pic);
         c->pic.data[0] = NULL;
 
         switch (avctx->bits_per_coded_sample) {
@@ -164,10 +170,6 @@ static av_cold int decode_init(AVCodecContext *avctx)
                         avctx->pix_fmt = PIX_FMT_PAL8;
                         c->planes = 1;
                         c->planemap[0] = 0; // 1st plane is palette indexes
-                        if (avctx->palctrl == NULL) {
-                                av_log(avctx, AV_LOG_ERROR, "Error: PAL8 format but no palette from demuxer.\n");
-                                return -1;
-                        }
                         break;
                 case 24:
                         avctx->pix_fmt = avctx->get_format(avctx, pixfmt_rgb24);
@@ -220,14 +222,13 @@ static av_cold int decode_end(AVCodecContext *avctx)
 
 
 AVCodec ff_eightbps_decoder = {
-        "8bps",
-        AVMEDIA_TYPE_VIDEO,
-        CODEC_ID_8BPS,
-        sizeof(EightBpsContext),
-        decode_init,
-        NULL,
-        decode_end,
-        decode_frame,
-        CODEC_CAP_DR1,
-        .long_name = NULL_IF_CONFIG_SMALL("QuickTime 8BPS video"),
+    .name           = "8bps",
+    .type           = AVMEDIA_TYPE_VIDEO,
+    .id             = CODEC_ID_8BPS,
+    .priv_data_size = sizeof(EightBpsContext),
+    .init           = decode_init,
+    .close          = decode_end,
+    .decode         = decode_frame,
+    .capabilities   = CODEC_CAP_DR1,
+    .long_name      = NULL_IF_CONFIG_SMALL("QuickTime 8BPS video"),
 };