avcodec/gdv: Combine first and 3rd case in rescale()

[ffmpeg] / libavcodec / h264dec.c

diff --git a/libavcodec/h264dec.c b/libavcodec/h264dec.c
index 8c9c6d9f3bfb2f13ff9530f2f92453f3de48872f..7b4c5c76eaab7cee1fbd150da41058345954ed9a 100644 (file)
--- a/libavcodec/h264dec.c
+++ b/libavcodec/h264dec.c
@@ -609,9 +609,10 @@ static int decode_nal_units(H264Context *h, const uint8_t *buf, int buf_size)
 
     if (!(avctx->flags2 & AV_CODEC_FLAG2_CHUNKS)) {
         h->current_slice = 0;
-        if (!h->first_field)
+        if (!h->first_field) {
             h->cur_pic_ptr = NULL;
-        ff_h264_sei_uninit(&h->sei);
+            ff_h264_sei_uninit(&h->sei);
+        }
     }
 
     if (h->nal_length_size == 4) {
@@ -838,9 +839,6 @@ static int output_frame(H264Context *h, AVFrame *dst, H264Picture *srcp)
     AVFrame *src = srcp->f;
     int ret;
 
-    if (src->format == AV_PIX_FMT_VIDEOTOOLBOX && src->buf[0]->size == 1)
-        return AVERROR_INVALIDDATA;
-
     ret = av_frame_ref(dst, src);
     if (ret < 0)
         return ret;
@@ -857,6 +855,8 @@ static int is_extra(const uint8_t *buf, int buf_size)
 {
     int cnt= buf[5]&0x1f;
     const uint8_t *p= buf+6;
+    if (!cnt)
+        return 0;
     while(cnt--){
         int nalsize= AV_RB16(p) + 2;
         if(nalsize > buf_size - (p-buf) || (p[2] & 0x9F) != 7)
@@ -986,7 +986,7 @@ static int h264_decode_frame(AVCodecContext *avctx, void *data,
                                      &h->ps, &h->is_avc, &h->nal_length_size,
                                      avctx->err_recognition, avctx);
     }
-    if(h->is_avc && buf_size >= 9 && buf[0]==1 && buf[2]==0 && (buf[4]&0xFC)==0xFC && (buf[5]&0x1F) && buf[8]==0x67){
+    if (h->is_avc && buf_size >= 9 && buf[0]==1 && buf[2]==0 && (buf[4]&0xFC)==0xFC) {
         if (is_extra(buf, buf_size))
             return ff_h264_decode_extradata(buf, buf_size,
                                             &h->ps, &h->is_avc, &h->nal_length_size,