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Code Issues Releases Activity

avcodec/decode: Extend ff_hwaccel_frame_priv_alloc()'s task

Browse Source 
All usages of ff_hwaccel_frame_priv_alloc() have the same pattern:
Check for whether a hwaccel is in use; check whether it needs
private frame-specific data; allocate the AVBuffer and set
it.

This commit modifies ff_hwaccel_frame_priv_alloc() to perform
this task on its own.

(It also seems that the H.264 decoder did not perform proper
cleanup in case the buffer could not be allocated. This has been
changed.)

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
This commit is contained in:
Andreas Rheinhardt 2023-08-01 21:02:13 +02:00
parent dcc1847b18
commit c48cc9c6e9
8 changed files with 62 additions and 77 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

16
libavcodec/av1dec.c
View File

@ -907,17 +907,11 @@ static int av1_frame_alloc(AVCodecContext *avctx, AV1Frame *f)
break;
}
if (avctx->hwaccel) {
const AVHWAccel *hwaccel = avctx->hwaccel;
if (hwaccel->frame_priv_data_size) {
f->hwaccel_priv_buf = ff_hwaccel_frame_priv_alloc(avctx, hwaccel);
if (!f->hwaccel_priv_buf) {
ret = AVERROR(ENOMEM);
goto fail;
}
f->hwaccel_picture_private = f->hwaccel_priv_buf->data;
}
}
ret = ff_hwaccel_frame_priv_alloc(avctx, &f->hwaccel_picture_private,
&f->hwaccel_priv_buf);
if (ret < 0)
goto fail;
return 0;
fail:

26
libavcodec/decode.c
View File

@ -1788,24 +1788,36 @@ int ff_copy_palette(void *dst, const AVPacket *src, void *logctx)
return 0;
}
AVBufferRef *ff_hwaccel_frame_priv_alloc(AVCodecContext *avctx,
const AVHWAccel *hwaccel)
int ff_hwaccel_frame_priv_alloc(AVCodecContext *avctx, void **hwaccel_picture_private,
AVBufferRef **hwaccel_priv_buf)
{
const AVHWAccel *hwaccel = avctx->hwaccel;
AVBufferRef *ref;
AVHWFramesContext *frames_ctx = (AVHWFramesContext *)avctx->hw_frames_ctx->data;
uint8_t *data = av_mallocz(hwaccel->frame_priv_data_size);
AVHWFramesContext *frames_ctx;
uint8_t *data;
if (!hwaccel || !hwaccel->frame_priv_data_size)
return 0;
av_assert0(!*hwaccel_picture_private);
data = av_mallocz(hwaccel->frame_priv_data_size);
if (!data)
return NULL;
return AVERROR(ENOMEM);
frames_ctx = (AVHWFramesContext *)avctx->hw_frames_ctx->data;
ref = av_buffer_create(data, hwaccel->frame_priv_data_size,
hwaccel->free_frame_priv,
frames_ctx->device_ctx, 0);
if (!ref) {
av_free(data);
return NULL;
return AVERROR(ENOMEM);
}
return ref;
*hwaccel_priv_buf = ref;
*hwaccel_picture_private = ref->data;
return 0;
}
void ff_decode_flush_buffers(AVCodecContext *avctx)

17
libavcodec/decode.h
View File

@ -140,14 +140,17 @@ int ff_side_data_update_matrix_encoding(AVFrame *frame,
enum AVMatrixEncoding matrix_encoding);
/**
* Allocate a hwaccel frame private data and create an AVBufferRef
* from it.
* Allocate a hwaccel frame private data if the provided avctx
* uses a hwaccel method that needs it. The private data will
* be refcounted via the AVBuffer API (if allocated).
*
* @param avctx The codec context which to attach as an opaque value
* @param hwaccel The hwaccel for which to allocate
* @return The allocated buffer
* @param avctx The codec context
* @param hwaccel_picture_private Pointer to return hwaccel_picture_private
* @param hwaccel_priv_buf Pointer to return the AVBufferRef owning
* hwaccel_picture_private
* @return 0 on success, < 0 on error
*/
AVBufferRef *ff_hwaccel_frame_priv_alloc(AVCodecContext *avctx,
const AVHWAccel *hwaccel);
int ff_hwaccel_frame_priv_alloc(AVCodecContext *avctx, void **hwaccel_picture_private,
AVBufferRef **hwaccel_priv_buf);
#endif /* AVCODEC_DECODE_H */

15
libavcodec/h264_slice.c
View File

@ -205,16 +205,11 @@ static int alloc_picture(H264Context *h, H264Picture *pic)
goto fail;
}
if (h->avctx->hwaccel) {
const AVHWAccel *hwaccel = h->avctx->hwaccel;
av_assert0(!pic->hwaccel_picture_private);
if (hwaccel->frame_priv_data_size) {
pic->hwaccel_priv_buf = ff_hwaccel_frame_priv_alloc(h->avctx, hwaccel);
if (!pic->hwaccel_priv_buf)
return AVERROR(ENOMEM);
pic->hwaccel_picture_private = pic->hwaccel_priv_buf->data;
}
}
ret = ff_hwaccel_frame_priv_alloc(h->avctx, &pic->hwaccel_picture_private,
&pic->hwaccel_priv_buf);
if (ret < 0)
goto fail;
if (CONFIG_GRAY && !h->avctx->hwaccel && h->flags & AV_CODEC_FLAG_GRAY && pic->f->data[2]) {
int h_chroma_shift, v_chroma_shift;
av_pix_fmt_get_chroma_sub_sample(pic->f->format,

14
libavcodec/hevc_refs.c
View File

@ -118,16 +118,10 @@ static HEVCFrame *alloc_frame(HEVCContext *s)
(s->sei.picture_timing.picture_struct == AV_PICTURE_STRUCTURE_BOTTOM_FIELD))
frame->frame->flags |= AV_FRAME_FLAG_INTERLACED;
if (s->avctx->hwaccel) {
const AVHWAccel *hwaccel = s->avctx->hwaccel;
av_assert0(!frame->hwaccel_picture_private);
if (hwaccel->frame_priv_data_size) {
frame->hwaccel_priv_buf = ff_hwaccel_frame_priv_alloc(s->avctx, hwaccel);
if (!frame->hwaccel_priv_buf)
goto fail;
frame->hwaccel_picture_private = frame->hwaccel_priv_buf->data;
}
}
ret = ff_hwaccel_frame_priv_alloc(s->avctx, &frame->hwaccel_picture_private,
&frame->hwaccel_priv_buf);
if (ret < 0)
goto fail;
return frame;
fail:

15
libavcodec/mpegpicture.c
View File

@ -171,17 +171,10 @@ static int alloc_frame_buffer(AVCodecContext *avctx, Picture *pic,
pic->f->height = avctx->height;
}
if (avctx->hwaccel) {
assert(!pic->hwaccel_picture_private);
if (avctx->hwaccel->frame_priv_data_size) {
pic->hwaccel_priv_buf = ff_hwaccel_frame_priv_alloc(avctx, avctx->hwaccel);
if (!pic->hwaccel_priv_buf) {
av_log(avctx, AV_LOG_ERROR, "alloc_frame_buffer() failed (hwaccel private data allocation)\n");
return -1;
}
pic->hwaccel_picture_private = pic->hwaccel_priv_buf->data;
}
}
ret = ff_hwaccel_frame_priv_alloc(avctx, &pic->hwaccel_picture_private,
&pic->hwaccel_priv_buf);
if (ret < 0)
return ret;
if ((linesize && linesize != pic->f->linesize[0]) ||
(uvlinesize && uvlinesize != pic->f->linesize[1])) {

18
libavcodec/vp8.c
View File

@ -104,23 +104,21 @@ static int vp8_alloc_frame(VP8Context *s, VP8Frame *f, int ref)
if ((ret = ff_thread_get_ext_buffer(s->avctx, &f->tf,
ref ? AV_GET_BUFFER_FLAG_REF : 0)) < 0)
return ret;
if (!(f->seg_map = av_buffer_allocz(s->mb_width * s->mb_height)))
if (!(f->seg_map = av_buffer_allocz(s->mb_width * s->mb_height))) {
ret = AVERROR(ENOMEM);
goto fail;
if (s->avctx->hwaccel) {
const AVHWAccel *hwaccel = s->avctx->hwaccel;
if (hwaccel->frame_priv_data_size) {
f->hwaccel_priv_buf = ff_hwaccel_frame_priv_alloc(s->avctx, hwaccel);
if (!f->hwaccel_priv_buf)
goto fail;
f->hwaccel_picture_private = f->hwaccel_priv_buf->data;
}
}
ret = ff_hwaccel_frame_priv_alloc(s->avctx, &f->hwaccel_picture_private,
&f->hwaccel_priv_buf);
if (ret < 0)
goto fail;
return 0;
fail:
av_buffer_unref(&f->seg_map);
ff_thread_release_ext_buffer(s->avctx, &f->tf);
return AVERROR(ENOMEM);
return ret;
}
static void vp8_release_frame(VP8Context *s, VP8Frame *f)

18
libavcodec/vp9.c
View File

@ -119,12 +119,14 @@ static int vp9_frame_alloc(AVCodecContext *avctx, VP9Frame *f)
s->frame_extradata_pool = av_buffer_pool_init(sz * (1 + sizeof(VP9mvrefPair)), NULL);
if (!s->frame_extradata_pool) {
s->frame_extradata_pool_size = 0;
ret = AVERROR(ENOMEM);
goto fail;
}
s->frame_extradata_pool_size = sz;
}
f->extradata = av_buffer_pool_get(s->frame_extradata_pool);
if (!f->extradata) {
ret = AVERROR(ENOMEM);
goto fail;
}
memset(f->extradata->data, 0, f->extradata->size);
@ -132,22 +134,16 @@ static int vp9_frame_alloc(AVCodecContext *avctx, VP9Frame *f)
f->segmentation_map = f->extradata->data;
f->mv = (VP9mvrefPair *) (f->extradata->data + sz);
if (avctx->hwaccel) {
const AVHWAccel *hwaccel = avctx->hwaccel;
av_assert0(!f->hwaccel_picture_private);
if (hwaccel->frame_priv_data_size) {
f->hwaccel_priv_buf = ff_hwaccel_frame_priv_alloc(avctx, hwaccel);
if (!f->hwaccel_priv_buf)
goto fail;
f->hwaccel_picture_private = f->hwaccel_priv_buf->data;
}
}
ret = ff_hwaccel_frame_priv_alloc(avctx, &f->hwaccel_picture_private,
&f->hwaccel_priv_buf);
if (ret < 0)
goto fail;
return 0;
fail:
vp9_frame_unref(avctx, f);
return AVERROR(ENOMEM);
return ret;
}
static int vp9_frame_ref(AVCodecContext *avctx, VP9Frame *dst, VP9Frame *src)