[FFmpeg-devel] [PATCH v5 05/22] cbs_h264: Use table-based alloc/free
Mark Thompson
sw at jkqxz.net
Mon May 4 01:05:31 EEST 2020
---
libavcodec/cbs_h2645.c | 163 ++++++++++++++++++-----------------------
1 file changed, 70 insertions(+), 93 deletions(-)
diff --git a/libavcodec/cbs_h2645.c b/libavcodec/cbs_h2645.c
index d42073cc5a..b5a033dcbd 100644
--- a/libavcodec/cbs_h2645.c
+++ b/libavcodec/cbs_h2645.c
@@ -443,52 +443,6 @@ static int cbs_h2645_read_more_rbsp_data(GetBitContext *gbc)
#undef allocate
-static void cbs_h264_free_pps(void *opaque, uint8_t *content)
-{
- H264RawPPS *pps = (H264RawPPS*)content;
- av_buffer_unref(&pps->slice_group_id_ref);
- av_freep(&content);
-}
-
-static void cbs_h264_free_sei_payload(H264RawSEIPayload *payload)
-{
- switch (payload->payload_type) {
- case H264_SEI_TYPE_BUFFERING_PERIOD:
- case H264_SEI_TYPE_PIC_TIMING:
- case H264_SEI_TYPE_PAN_SCAN_RECT:
- case H264_SEI_TYPE_RECOVERY_POINT:
- case H264_SEI_TYPE_DISPLAY_ORIENTATION:
- case H264_SEI_TYPE_MASTERING_DISPLAY_COLOUR_VOLUME:
- case H264_SEI_TYPE_ALTERNATIVE_TRANSFER:
- break;
- case H264_SEI_TYPE_USER_DATA_REGISTERED:
- av_buffer_unref(&payload->payload.user_data_registered.data_ref);
- break;
- case H264_SEI_TYPE_USER_DATA_UNREGISTERED:
- av_buffer_unref(&payload->payload.user_data_unregistered.data_ref);
- break;
- default:
- av_buffer_unref(&payload->payload.other.data_ref);
- break;
- }
-}
-
-static void cbs_h264_free_sei(void *opaque, uint8_t *content)
-{
- H264RawSEI *sei = (H264RawSEI*)content;
- int i;
- for (i = 0; i < sei->payload_count; i++)
- cbs_h264_free_sei_payload(&sei->payload[i]);
- av_freep(&content);
-}
-
-static void cbs_h264_free_slice(void *opaque, uint8_t *content)
-{
- H264RawSlice *slice = (H264RawSlice*)content;
- av_buffer_unref(&slice->data_ref);
- av_freep(&content);
-}
-
static void cbs_h265_free_vps(void *opaque, uint8_t *content)
{
H265RawVPS *vps = (H265RawVPS*)content;
@@ -790,15 +744,14 @@ static int cbs_h264_read_nal_unit(CodedBitstreamContext *ctx,
if (err < 0)
return err;
+ err = ff_cbs_alloc_unit_content2(ctx, unit);
+ if (err < 0)
+ return err;
+
switch (unit->type) {
case H264_NAL_SPS:
{
- H264RawSPS *sps;
-
- err = ff_cbs_alloc_unit_content(ctx, unit, sizeof(*sps), NULL);
- if (err < 0)
- return err;
- sps = unit->content;
+ H264RawSPS *sps = unit->content;
err = cbs_h264_read_sps(ctx, &gbc, sps);
if (err < 0)
@@ -812,12 +765,6 @@ static int cbs_h264_read_nal_unit(CodedBitstreamContext *ctx,
case H264_NAL_SPS_EXT:
{
- err = ff_cbs_alloc_unit_content(ctx, unit,
- sizeof(H264RawSPSExtension),
- NULL);
- if (err < 0)
- return err;
-
err = cbs_h264_read_sps_extension(ctx, &gbc, unit->content);
if (err < 0)
return err;
@@ -826,13 +773,7 @@ static int cbs_h264_read_nal_unit(CodedBitstreamContext *ctx,
case H264_NAL_PPS:
{
- H264RawPPS *pps;
-
- err = ff_cbs_alloc_unit_content(ctx, unit, sizeof(*pps),
- &cbs_h264_free_pps);
- if (err < 0)
- return err;
- pps = unit->content;
+ H264RawPPS *pps = unit->content;
err = cbs_h264_read_pps(ctx, &gbc, pps);
if (err < 0)
@@ -848,15 +789,9 @@ static int cbs_h264_read_nal_unit(CodedBitstreamContext *ctx,
case H264_NAL_IDR_SLICE:
case H264_NAL_AUXILIARY_SLICE:
{
- H264RawSlice *slice;
+ H264RawSlice *slice = unit->content;
int pos, len;
- err = ff_cbs_alloc_unit_content(ctx, unit, sizeof(*slice),
- &cbs_h264_free_slice);
- if (err < 0)
- return err;
- slice = unit->content;
-
err = cbs_h264_read_slice_header(ctx, &gbc, &slice->header);
if (err < 0)
return err;
@@ -878,11 +813,6 @@ static int cbs_h264_read_nal_unit(CodedBitstreamContext *ctx,
case H264_NAL_AUD:
{
- err = ff_cbs_alloc_unit_content(ctx, unit,
- sizeof(H264RawAUD), NULL);
- if (err < 0)
- return err;
-
err = cbs_h264_read_aud(ctx, &gbc, unit->content);
if (err < 0)
return err;
@@ -891,11 +821,6 @@ static int cbs_h264_read_nal_unit(CodedBitstreamContext *ctx,
case H264_NAL_SEI:
{
- err = ff_cbs_alloc_unit_content(ctx, unit, sizeof(H264RawSEI),
- &cbs_h264_free_sei);
- if (err < 0)
- return err;
-
err = cbs_h264_read_sei(ctx, &gbc, unit->content);
if (err < 0)
return err;
@@ -904,11 +829,6 @@ static int cbs_h264_read_nal_unit(CodedBitstreamContext *ctx,
case H264_NAL_FILLER_DATA:
{
- err = ff_cbs_alloc_unit_content(ctx, unit,
- sizeof(H264RawFiller), NULL);
- if (err < 0)
- return err;
-
err = cbs_h264_read_filler(ctx, &gbc, unit->content);
if (err < 0)
return err;
@@ -918,12 +838,6 @@ static int cbs_h264_read_nal_unit(CodedBitstreamContext *ctx,
case H264_NAL_END_SEQUENCE:
case H264_NAL_END_STREAM:
{
- err = ff_cbs_alloc_unit_content(ctx, unit,
- sizeof(H264RawNALUnitHeader),
- NULL);
- if (err < 0)
- return err;
-
err = (unit->type == H264_NAL_END_SEQUENCE ?
cbs_h264_read_end_of_sequence :
cbs_h264_read_end_of_stream)(ctx, &gbc, unit->content);
@@ -1493,11 +1407,74 @@ static void cbs_h265_close(CodedBitstreamContext *ctx)
av_buffer_unref(&h265->pps_ref[i]);
}
+static void cbs_h264_free_sei_payload(H264RawSEIPayload *payload)
+{
+ switch (payload->payload_type) {
+ case H264_SEI_TYPE_BUFFERING_PERIOD:
+ case H264_SEI_TYPE_PIC_TIMING:
+ case H264_SEI_TYPE_PAN_SCAN_RECT:
+ case H264_SEI_TYPE_RECOVERY_POINT:
+ case H264_SEI_TYPE_DISPLAY_ORIENTATION:
+ case H264_SEI_TYPE_MASTERING_DISPLAY_COLOUR_VOLUME:
+ case H264_SEI_TYPE_ALTERNATIVE_TRANSFER:
+ break;
+ case H264_SEI_TYPE_USER_DATA_REGISTERED:
+ av_buffer_unref(&payload->payload.user_data_registered.data_ref);
+ break;
+ case H264_SEI_TYPE_USER_DATA_UNREGISTERED:
+ av_buffer_unref(&payload->payload.user_data_unregistered.data_ref);
+ break;
+ default:
+ av_buffer_unref(&payload->payload.other.data_ref);
+ break;
+ }
+}
+
+static void cbs_h264_free_sei(void *opaque, uint8_t *content)
+{
+ H264RawSEI *sei = (H264RawSEI*)content;
+ int i;
+ for (i = 0; i < sei->payload_count; i++)
+ cbs_h264_free_sei_payload(&sei->payload[i]);
+ av_freep(&content);
+}
+
+static const CodedBitstreamUnitTypeDescriptor cbs_h264_unit_types[] = {
+ CBS_UNIT_TYPE_POD(H264_NAL_SPS, H264RawSPS),
+ CBS_UNIT_TYPE_POD(H264_NAL_SPS_EXT, H264RawSPSExtension),
+
+ CBS_UNIT_TYPE_INTERNAL_REF(H264_NAL_PPS, H264RawPPS, slice_group_id),
+
+ {
+ .nb_unit_types = 3,
+ .unit_types = {
+ H264_NAL_IDR_SLICE,
+ H264_NAL_SLICE,
+ H264_NAL_AUXILIARY_SLICE,
+ },
+ .content_type = CBS_CONTENT_TYPE_INTERNAL_REFS,
+ .content_size = sizeof(H264RawSlice),
+ .nb_ref_offsets = 1,
+ .ref_offsets = { offsetof(H264RawSlice, data) },
+ },
+
+ CBS_UNIT_TYPE_POD(H264_NAL_AUD, H264RawAUD),
+ CBS_UNIT_TYPE_POD(H264_NAL_FILLER_DATA, H264RawFiller),
+ CBS_UNIT_TYPE_POD(H264_NAL_END_SEQUENCE, H264RawNALUnitHeader),
+ CBS_UNIT_TYPE_POD(H264_NAL_END_STREAM, H264RawNALUnitHeader),
+
+ CBS_UNIT_TYPE_COMPLEX(H264_NAL_SEI, H264RawSEI, &cbs_h264_free_sei),
+
+ CBS_UNIT_TYPE_END_OF_LIST
+};
+
const CodedBitstreamType ff_cbs_type_h264 = {
.codec_id = AV_CODEC_ID_H264,
.priv_data_size = sizeof(CodedBitstreamH264Context),
+ .unit_types = cbs_h264_unit_types,
+
.split_fragment = &cbs_h2645_split_fragment,
.read_unit = &cbs_h264_read_nal_unit,
.write_unit = &cbs_h264_write_nal_unit,
--
2.26.2
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