package/mpp
1
0
Fork 0
mirror of https://github.com/nyanmisaka/mpp.git synced 2025-10-05 17:16:50 +08:00
Code Issues Actions Packages Projects Releases Wiki Activity

fix[avsd]: Skip redundant zeros between fields inside one picture

Browse Source 
Hardware decoder may failed at decoding the last field of one picture
when there are too many zeros between first and the second field. So
we should tell hardware to read from the exact place of field stream.

Change-Id: Ia78f5d0a97136861ceb3ab198419fe51905c3b2f
Signed-off-by: Johnson Ding <johnson.ding@rock-chips.com>
This commit is contained in:
Johnson Ding
2025-03-22 14:10:50 +08:00
committed by Herman Chen
parent 5b940db958
commit 83f4b5abd6
1 changed files with 22 additions and 6 deletions
Download Patch File Download Diff File Expand all files Collapse all files

28
mpp/hal/rkdec/avsd/hal_avsd_plus.c
View File

@@ -528,11 +528,13 @@ static MPP_RET update_parameters(AvsdHalCtx_t *p_hal)
static MPP_RET repeat_other_field(AvsdHalCtx_t *p_hal, HalTaskInfo *task)
{
RK_U8 i = 0;
RK_U32 i = 0;
RK_U8 *pdata = NULL;
MppBuffer mbuffer = NULL;
MPP_RET ret = MPP_ERR_UNKNOW;
AvsdPlusRegs_t *p_regs = (AvsdPlusRegs_t *)p_hal->p_regs;
RK_U32 stream_remain = 0;
RK_U8 *ptr = NULL;
//!< re-find start code and calculate offset
p_hal->data_offset = p_regs->sw12.rlc_vlc_base >> 10;
@@ -541,13 +543,27 @@ static MPP_RET repeat_other_field(AvsdHalCtx_t *p_hal, HalTaskInfo *task)
mpp_buf_slot_get_prop(p_hal->packet_slots, task->dec.input, SLOT_BUFFER, &mbuffer);
pdata = (RK_U8 *)mpp_buffer_get_ptr(mbuffer) + p_hal->data_offset;
stream_remain = p_hal->syn.bitstream_size - p_hal->data_offset;
while (i < 16) {
if (pdata[i] == 0 && pdata[i + 1] == 0 && pdata[i + 2] == 1) {
p_hal->data_offset += i;
AVSD_HAL_DBG(AVSD_HAL_DBG_OFFSET, "frame_no=%d, poc %d, stream %d, offset %d, remain %d\n",
p_hal->frame_no, p_hal->syn.pp.pictureDistance, p_hal->syn.bitstream_size,
p_hal->data_offset, stream_remain);
while (stream_remain > 3) {
ptr = memchr(pdata, 1, stream_remain);
if (!ptr)
break;
stream_remain = stream_remain - (ptr - pdata + 1);
if (!ptr[-1] && !ptr[-2]) {
p_hal->data_offset = p_hal->syn.bitstream_size - stream_remain - 3;
break;
} else {
pdata = ptr + 1;
ptr = NULL;
}
i++;
}
AVSD_HAL_DBG(AVSD_HAL_DBG_OFFSET, "frame_no=%d, i=%d, offset=%d\n",
p_hal->frame_no, i, p_hal->data_offset);
@@ -676,7 +692,7 @@ MPP_RET hal_avsd_plus_start(void *decoder, HalTaskInfo *task)
wr_cfg.size = AVSD_REGISTERS * sizeof(RK_U32);
wr_cfg.offset = 0;
{
if (avsd_hal_debug & AVSD_HAL_DBG_ERROR) {
static RK_U32 frame_no = 0;
static FILE *fp = NULL;
RK_U32 i;