avformat/subtitles: treat negative duration like unknown duration

[ffmpeg] / libavcodec / h264.c

diff --git a/libavcodec/h264.c b/libavcodec/h264.c
index fff65bc670f1d1e3ea26b15b087e2534875e65f0..089a86fe428a58f14b29bb57192da880ac686366 100644 (file)
--- a/libavcodec/h264.c
+++ b/libavcodec/h264.c
@@ -906,18 +906,11 @@ static void decode_postinit(H264Context *h, int setup_finished)
     // FIXME do something with unavailable reference frames
 
     /* Sort B-frames into display order */
-
-    if (h->sps.bitstream_restriction_flag &&
-        h->avctx->has_b_frames < h->sps.num_reorder_frames) {
-        h->avctx->has_b_frames = h->sps.num_reorder_frames;
-        h->low_delay           = 0;
-    }
-
-    if (h->avctx->strict_std_compliance >= FF_COMPLIANCE_STRICT &&
-        !h->sps.bitstream_restriction_flag) {
-        h->avctx->has_b_frames = MAX_DELAYED_PIC_COUNT - 1;
-        h->low_delay           = 0;
+    if (h->sps.bitstream_restriction_flag ||
+        h->avctx->strict_std_compliance >= FF_COMPLIANCE_STRICT) {
+        h->avctx->has_b_frames = FFMAX(h->avctx->has_b_frames, h->sps.num_reorder_frames);
     }
+    h->low_delay = !h->avctx->has_b_frames;
 
     for (i = 0; 1; i++) {
         if(i == MAX_DELAYED_PIC_COUNT || cur->poc < h->last_pocs[i]){
@@ -1556,8 +1549,6 @@ again:
                 // "recovered".
                 if (h->nal_unit_type == NAL_IDR_SLICE)
                     h->frame_recovered |= FRAME_RECOVERED_IDR;
-                h->frame_recovered |= 3*!!(avctx->flags2 & AV_CODEC_FLAG2_SHOW_ALL);
-                h->frame_recovered |= 3*!!(avctx->flags & AV_CODEC_FLAG_OUTPUT_CORRUPT);
 #if 1
                 h->cur_pic_ptr->recovered |= h->frame_recovered;
 #else
@@ -1863,7 +1854,8 @@ static int h264_decode_frame(AVCodecContext *avctx, void *data,
 
         /* Wait for second field. */
         *got_frame = 0;
-        if (h->next_output_pic && (
+        if (h->next_output_pic && ((avctx->flags & AV_CODEC_FLAG_OUTPUT_CORRUPT) ||
+                                   (avctx->flags2 & AV_CODEC_FLAG2_SHOW_ALL) ||
                                    h->next_output_pic->recovered)) {
             if (!h->next_output_pic->recovered)
                 h->next_output_pic->f->flags |= AV_FRAME_FLAG_CORRUPT;
@@ -1959,7 +1951,7 @@ static av_cold int h264_decode_end(AVCodecContext *avctx)
 static const AVOption h264_options[] = {
     {"is_avc", "is avc", offsetof(H264Context, is_avc), AV_OPT_TYPE_BOOL, {.i64 = 0}, 0, 1, 0},
     {"nal_length_size", "nal_length_size", offsetof(H264Context, nal_length_size), AV_OPT_TYPE_INT, {.i64 = 0}, 0, 4, 0},
-    { "enable_er", "Enable error resilience on damaged frames (unsafe)", OFFSET(enable_er), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 1, VD },
+    { "enable_er", "Enable error resilience on damaged frames (unsafe)", OFFSET(enable_er), AV_OPT_TYPE_BOOL, { .i64 = -1 }, -1, 1, VD },
     { NULL },
 };