[FFmpeg-devel] [PATCH 1/2] v4l_m2m: add missing AV_CODEC_CAP_DELAY flags

wm4 nfxjfg at googlemail.com
Thu Dec 14 20:48:07 EET 2017


This is pretty much a requirement for any codec that handles modern
codecs like h264, but it was missing. Potentially could lead to issues
like missing frames at the end of a stream.
---
Untested.
---
 libavcodec/v4l2_m2m_dec.c | 2 +-
 libavcodec/v4l2_m2m_enc.c | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/libavcodec/v4l2_m2m_dec.c b/libavcodec/v4l2_m2m_dec.c
index c4ea20ea83..8308613978 100644
--- a/libavcodec/v4l2_m2m_dec.c
+++ b/libavcodec/v4l2_m2m_dec.c
@@ -215,7 +215,7 @@ AVCodec ff_ ## NAME ## _v4l2m2m_decoder = { \
     .receive_frame  = v4l2_receive_frame,\
     .close          = ff_v4l2_m2m_codec_end,\
     .bsfs           = bsf_name, \
-    .capabilities   = AV_CODEC_CAP_HARDWARE, \
+    .capabilities   = AV_CODEC_CAP_HARDWARE | AV_CODEC_CAP_DELAY, \
     .wrapper_name   = "v4l2m2m", \
 };
 
diff --git a/libavcodec/v4l2_m2m_enc.c b/libavcodec/v4l2_m2m_enc.c
index f62ce7cdb5..7e88f4d2e6 100644
--- a/libavcodec/v4l2_m2m_enc.c
+++ b/libavcodec/v4l2_m2m_enc.c
@@ -335,7 +335,7 @@ AVCodec ff_ ## NAME ## _v4l2m2m_encoder = { \
     .send_frame     = v4l2_send_frame,\
     .receive_packet = v4l2_receive_packet,\
     .close          = ff_v4l2_m2m_codec_end,\
-    .capabilities   = AV_CODEC_CAP_HARDWARE, \
+    .capabilities   = AV_CODEC_CAP_HARDWARE | AV_CODEC_CAP_DELAY, \
     .wrapper_name   = "v4l2m2m", \
 };
 
-- 
2.15.1



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