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media: venus: vdec: Handle DRC after drain

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If the DRC is near the end of the stream the client
may send a V4L2_DEC_CMD_STOP before the DRC occurs.
V4L2_DEC_CMD_STOP puts the driver into the
VENUS_DEC_STATE_DRAIN state.  DRC must be aware so
that after the DRC event the state can be restored
correctly.

Signed-off-by: Fritz Koenig <frkoenig@chromium.org>
Signed-off-by: Stanimir Varbanov <stanimir.varbanov@linaro.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
This commit is contained in:
Fritz Koenig 2020-12-01 05:23:23 +01:00 committed by Mauro Carvalho Chehab
parent d5ee32d7e5
commit c8e8dabcd1
2 changed files with 13 additions and 2 deletions
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1
drivers/media/platform/qcom/venus/core.h
View File

@ -413,6 +413,7 @@ struct venus_inst {
unsigned int core_acquired: 1;
unsigned int bit_depth;
bool next_buf_last;
bool drain_active;
};
#define IS_V1(core) ((core)->res->hfi_version == HFI_VERSION_1XX)

14
drivers/media/platform/qcom/venus/vdec.c
View File

@ -519,8 +519,10 @@ vdec_decoder_cmd(struct file *file, void *fh, struct v4l2_decoder_cmd *cmd)
ret = hfi_session_process_buf(inst, &fdata);
if (!ret && inst->codec_state == VENUS_DEC_STATE_DECODING)
if (!ret && inst->codec_state == VENUS_DEC_STATE_DECODING) {
inst->codec_state = VENUS_DEC_STATE_DRAIN;
inst->drain_active = true;
}
}
unlock:
@ -970,9 +972,13 @@ reconfigure:
inst->codec_state = VENUS_DEC_STATE_DECODING;
if (inst->drain_active)
inst->codec_state = VENUS_DEC_STATE_DRAIN;
inst->streamon_cap = 1;
inst->sequence_cap = 0;
inst->reconfig = false;
inst->drain_active = false;
return 0;
@ -1098,6 +1104,7 @@ static int vdec_stop_capture(struct venus_inst *inst)
fallthrough;
case VENUS_DEC_STATE_DRAIN:
inst->codec_state = VENUS_DEC_STATE_STOPPED;
inst->drain_active = false;
fallthrough;
case VENUS_DEC_STATE_SEEK:
vdec_cancel_dst_buffers(inst);
@ -1297,8 +1304,10 @@ static void vdec_buf_done(struct venus_inst *inst, unsigned int buf_type,
v4l2_event_queue_fh(&inst->fh, &ev);
if (inst->codec_state == VENUS_DEC_STATE_DRAIN)
if (inst->codec_state == VENUS_DEC_STATE_DRAIN) {
inst->drain_active = false;
inst->codec_state = VENUS_DEC_STATE_STOPPED;
}
}
if (!bytesused)
@ -1374,6 +1383,7 @@ static void vdec_event_change(struct venus_inst *inst,
inst->codec_state = VENUS_DEC_STATE_CAPTURE_SETUP;
break;
case VENUS_DEC_STATE_DECODING:
case VENUS_DEC_STATE_DRAIN:
inst->codec_state = VENUS_DEC_STATE_DRC;
break;
default: