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Code Issues Releases Activity

avcodec/rkmppdec: Use RefStruct API for references to decoder itself

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Avoids boilerplate code when creating the context
and avoids allocations and therefore whole error paths
when creating references to it. Also avoids an indirection
and improves type-safety.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
This commit is contained in:
Andreas Rheinhardt 2023-09-24 14:05:42 +02:00
parent 9a0614c7bd
commit 1427e67500
1 changed files with 16 additions and 30 deletions
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46
libavcodec/rkmppdec.c
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@ -30,6 +30,7 @@
#include "codec_internal.h"
#include "decode.h"
#include "hwconfig.h"
#include "refstruct.h"
#include "libavutil/buffer.h"
#include "libavutil/common.h"
#include "libavutil/frame.h"
@ -57,12 +58,12 @@ typedef struct {
typedef struct {
AVClass *av_class;
AVBufferRef *decoder_ref;
RKMPPDecoder *decoder; ///< RefStruct reference
} RKMPPDecodeContext;
typedef struct {
MppFrame frame;
AVBufferRef *decoder_ref;
const RKMPPDecoder *decoder_ref; ///< RefStruct reference
} RKMPPFrameContext;
static MppCodingType rkmpp_get_codingtype(AVCodecContext *avctx)
@ -90,7 +91,7 @@ static uint32_t rkmpp_get_frameformat(MppFrameFormat mppformat)
static int rkmpp_write_data(AVCodecContext *avctx, uint8_t *buffer, int size, int64_t pts)
{
RKMPPDecodeContext *rk_context = avctx->priv_data;
RKMPPDecoder *decoder = (RKMPPDecoder *)rk_context->decoder_ref->data;
RKMPPDecoder *decoder = rk_context->decoder;
int ret;
MppPacket packet;
@ -125,13 +126,13 @@ static int rkmpp_write_data(AVCodecContext *avctx, uint8_t *buffer, int size, in
static int rkmpp_close_decoder(AVCodecContext *avctx)
{
RKMPPDecodeContext *rk_context = avctx->priv_data;
av_buffer_unref(&rk_context->decoder_ref);
ff_refstruct_unref(&rk_context->decoder);
return 0;
}
static void rkmpp_release_decoder(void *opaque, uint8_t *data)
static void rkmpp_release_decoder(FFRefStructOpaque unused, void *obj)
{
RKMPPDecoder *decoder = (RKMPPDecoder *)data;
RKMPPDecoder *decoder = obj;
if (decoder->mpi) {
decoder->mpi->reset(decoder->ctx);
@ -146,8 +147,6 @@ static void rkmpp_release_decoder(void *opaque, uint8_t *data)
av_buffer_unref(&decoder->frames_ref);
av_buffer_unref(&decoder->device_ref);
av_free(decoder);
}
static int rkmpp_init_decoder(AVCodecContext *avctx)
@ -162,19 +161,13 @@ static int rkmpp_init_decoder(AVCodecContext *avctx)
avctx->pix_fmt = AV_PIX_FMT_DRM_PRIME;
// create a decoder and a ref to it
decoder = av_mallocz(sizeof(RKMPPDecoder));
decoder = ff_refstruct_alloc_ext(sizeof(*decoder), 0,
NULL, rkmpp_release_decoder);
if (!decoder) {
ret = AVERROR(ENOMEM);
goto fail;
}
rk_context->decoder_ref = av_buffer_create((uint8_t *)decoder, sizeof(*decoder), rkmpp_release_decoder,
NULL, AV_BUFFER_FLAG_READONLY);
if (!rk_context->decoder_ref) {
av_free(decoder);
ret = AVERROR(ENOMEM);
goto fail;
}
rk_context->decoder = decoder;
av_log(avctx, AV_LOG_DEBUG, "Initializing RKMPP decoder.\n");
@ -270,7 +263,7 @@ fail:
static int rkmpp_send_packet(AVCodecContext *avctx, const AVPacket *avpkt)
{
RKMPPDecodeContext *rk_context = avctx->priv_data;
RKMPPDecoder *decoder = (RKMPPDecoder *)rk_context->decoder_ref->data;
RKMPPDecoder *decoder = rk_context->decoder;
int ret;
// handle EOF
@ -312,7 +305,7 @@ static void rkmpp_release_frame(void *opaque, uint8_t *data)
RKMPPFrameContext *framecontext = (RKMPPFrameContext *)framecontextref->data;
mpp_frame_deinit(&framecontext->frame);
av_buffer_unref(&framecontext->decoder_ref);
ff_refstruct_unref(&framecontext->decoder_ref);
av_buffer_unref(&framecontextref);
av_free(desc);
@ -321,7 +314,7 @@ static void rkmpp_release_frame(void *opaque, uint8_t *data)
static int rkmpp_retrieve_frame(AVCodecContext *avctx, AVFrame *frame)
{
RKMPPDecodeContext *rk_context = avctx->priv_data;
RKMPPDecoder *decoder = (RKMPPDecoder *)rk_context->decoder_ref->data;
RKMPPDecoder *decoder = rk_context->decoder;
RKMPPFrameContext *framecontext = NULL;
AVBufferRef *framecontextref = NULL;
int ret;
@ -449,11 +442,6 @@ static int rkmpp_retrieve_frame(AVCodecContext *avctx, AVFrame *frame)
// MPP decoder needs to be closed only when all frames have been released.
framecontext = (RKMPPFrameContext *)framecontextref->data;
framecontext->decoder_ref = av_buffer_ref(rk_context->decoder_ref);
if (!framecontext->decoder_ref) {
ret = AVERROR(ENOMEM);
goto fail;
}
framecontext->frame = mppframe;
frame->data[0] = (uint8_t *)desc;
@ -464,6 +452,7 @@ static int rkmpp_retrieve_frame(AVCodecContext *avctx, AVFrame *frame)
ret = AVERROR(ENOMEM);
goto fail;
}
framecontext->decoder_ref = ff_refstruct_ref(rk_context->decoder);
frame->hw_frames_ctx = av_buffer_ref(decoder->frames_ref);
if (!frame->hw_frames_ctx) {
@ -488,9 +477,6 @@ fail:
if (mppframe)
mpp_frame_deinit(&mppframe);
if (framecontext)
av_buffer_unref(&framecontext->decoder_ref);
if (framecontextref)
av_buffer_unref(&framecontextref);
@ -503,7 +489,7 @@ fail:
static int rkmpp_receive_frame(AVCodecContext *avctx, AVFrame *frame)
{
RKMPPDecodeContext *rk_context = avctx->priv_data;
RKMPPDecoder *decoder = (RKMPPDecoder *)rk_context->decoder_ref->data;
RKMPPDecoder *decoder = rk_context->decoder;
int ret = MPP_NOK;
AVPacket pkt = {0};
RK_S32 usedslots, freeslots;
@ -543,7 +529,7 @@ static int rkmpp_receive_frame(AVCodecContext *avctx, AVFrame *frame)
static void rkmpp_flush(AVCodecContext *avctx)
{
RKMPPDecodeContext *rk_context = avctx->priv_data;
RKMPPDecoder *decoder = (RKMPPDecoder *)rk_context->decoder_ref->data;
RKMPPDecoder *decoder = rk_context->decoder;
int ret = MPP_NOK;
av_log(avctx, AV_LOG_DEBUG, "Flush.\n");