On i.MX6, sometimes after decoding a stream, encoding will produce macroblock
errors caused by missing 8-byte sequences in the output stream. Until the cause
for this is found, reset the hardware after sequence end, which seems to help.
Signed-off-by: Philipp Zabel <p.za...@pengutronix.de>
---
drivers/media/platform/coda/coda-bit.c | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/drivers/media/platform/coda/coda-bit.c
b/drivers/media/platform/coda/coda-bit.c
index 25910cc..bcb9911 100644
--- a/drivers/media/platform/coda/coda-bit.c
+++ b/drivers/media/platform/coda/coda-bit.c
@@ -1347,6 +1347,14 @@ static void coda_seq_end_work(struct work_struct *work)
"CODA_COMMAND_SEQ_END failed\n");
}
+ /*
+ * FIXME: Sometimes h.264 encoding fails with 8-byte sequences missing
+ * from the output stream after the h.264 decoder has run. Resetting the
+ * hardware after the decoder has finished seems to help.
+ */
+ if (dev->devtype->product == CODA_960)
+ coda_hw_reset(ctx);
+
kfifo_init(&ctx->bitstream_fifo,
ctx->bitstream.vaddr, ctx->bitstream.size);
--
2.1.4
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