hevc_parse: rename into h2645_parse

This code will be shared with h264.

7 files changed, 91 insertions, 59 deletions

diff --git a/libavcodec/Makefile b/libavcodec/Makefile
index f484180f67..e253e7e126 100644
--- a/libavcodec/Makefile
+++ b/libavcodec/Makefile
@@ -261,10 +261,10 @@ OBJS-$(CONFIG_HAP_DECODER)             += hapdec.o hap.o
 OBJS-$(CONFIG_HAP_ENCODER)             += hapenc.o hap.o
 OBJS-$(CONFIG_HEVC_DECODER)            += hevc.o hevc_mvs.o hevc_ps.o hevc_sei.o \
                                           hevc_cabac.o hevc_refs.o hevcpred.o    \
-                                          hevcdsp.o hevc_filter.o hevc_parse.o hevc_data.o
+                                          hevcdsp.o hevc_filter.o h2645_parse.o hevc_data.o
 OBJS-$(CONFIG_HEVC_NVENC_ENCODER)      += nvenc_hevc.o
 OBJS-$(CONFIG_HEVC_QSV_DECODER)        += qsvdec_h2645.o
-OBJS-$(CONFIG_HEVC_QSV_ENCODER)        += qsvenc_hevc.o hevc_ps_enc.o hevc_parse.o
+OBJS-$(CONFIG_HEVC_QSV_ENCODER)        += qsvenc_hevc.o hevc_ps_enc.o h2645_parse.o
 OBJS-$(CONFIG_HNM4_VIDEO_DECODER)      += hnm4video.o
 OBJS-$(CONFIG_HQ_HQA_DECODER)          += hq_hqa.o hq_hqadata.o hq_hqadsp.o \
                                           canopus.o
@@ -719,7 +719,7 @@ OBJS-$(CONFIG_GSM_PARSER)              += gsm_parser.o
 OBJS-$(CONFIG_H261_PARSER)             += h261_parser.o
 OBJS-$(CONFIG_H263_PARSER)             += h263_parser.o
 OBJS-$(CONFIG_H264_PARSER)             += h264_parser.o
-OBJS-$(CONFIG_HEVC_PARSER)             += hevc_parser.o hevc_parse.o hevc_ps.o hevc_data.o
+OBJS-$(CONFIG_HEVC_PARSER)             += hevc_parser.o h2645_parse.o hevc_ps.o hevc_data.o
 OBJS-$(CONFIG_MJPEG_PARSER)            += mjpeg_parser.o
 OBJS-$(CONFIG_MLP_PARSER)              += mlp_parser.o mlp.o
 OBJS-$(CONFIG_MPEG4VIDEO_PARSER)       += mpeg4video_parser.o h263.o \
diff --git a/libavcodec/hevc_parse.c b/libavcodec/h2645_parse.c
index de00245809..794c954597 100644
--- a/libavcodec/hevc_parse.c
+++ b/libavcodec/h2645_parse.c
@@ -1,5 +1,5 @@
 /*
- * HEVC common code
+ * H.264/HEVC common parsing code
  *
  * This file is part of Libav.
  *
@@ -25,12 +25,12 @@
 #include "libavutil/intreadwrite.h"
 #include "libavutil/mem.h"
 
-#include "hevc.h"
+#include "h2645_parse.h"
 
 /* FIXME: This is adapted from ff_h264_decode_nal, avoiding duplication
  * between these functions would be nice. */
-int ff_hevc_extract_rbsp(const uint8_t *src, int length,
-                         HEVCNAL *nal)
+int ff_h2645_extract_rbsp(const uint8_t *src, int length,
+                          H2645NAL *nal)
 {
     int i, si, di;
     uint8_t *dst;
@@ -132,7 +132,7 @@ nsc:
  * @return AVERROR_INVALIDDATA if the packet is not a valid NAL unit,
  * 0 if the unit should be skipped, 1 otherwise
  */
-static int hls_nal_unit(HEVCNAL *nal, AVCodecContext *avctx)
+static int hevc_parse_nal_header(H2645NAL *nal, AVCodecContext *avctx)
 {
     GetBitContext *gb = &nal->gb;
     int nuh_layer_id;
@@ -155,14 +155,14 @@ static int hls_nal_unit(HEVCNAL *nal, AVCodecContext *avctx)
 }
 
 
-int ff_hevc_split_packet(HEVCPacket *pkt, const uint8_t *buf, int length,
-                         AVCodecContext *avctx, int is_nalff, int nal_length_size)
+int ff_h2645_packet_split(H2645Packet *pkt, const uint8_t *buf, int length,
+                          AVCodecContext *avctx, int is_nalff, int nal_length_size)
 {
     int consumed, ret = 0;
 
     pkt->nb_nals = 0;
     while (length >= 4) {
-        HEVCNAL *nal;
+        H2645NAL *nal;
         int extract_length = 0;
 
         if (is_nalff) {
@@ -192,7 +192,7 @@ int ff_hevc_split_packet(HEVCPacket *pkt, const uint8_t *buf, int length,
 
         if (pkt->nals_allocated < pkt->nb_nals + 1) {
             int new_size = pkt->nals_allocated + 1;
-            HEVCNAL *tmp = av_realloc_array(pkt->nals, new_size, sizeof(*tmp));
+            H2645NAL *tmp = av_realloc_array(pkt->nals, new_size, sizeof(*tmp));
             if (!tmp)
                 return AVERROR(ENOMEM);
 
@@ -203,7 +203,7 @@ int ff_hevc_split_packet(HEVCPacket *pkt, const uint8_t *buf, int length,
         }
         nal = &pkt->nals[pkt->nb_nals++];
 
-        consumed = ff_hevc_extract_rbsp(buf, extract_length, nal);
+        consumed = ff_h2645_extract_rbsp(buf, extract_length, nal);
         if (consumed < 0)
             return consumed;
 
@@ -211,7 +211,7 @@ int ff_hevc_split_packet(HEVCPacket *pkt, const uint8_t *buf, int length,
         if (ret < 0)
             return ret;
 
-        ret = hls_nal_unit(nal, avctx);
+        ret = hevc_parse_nal_header(nal, avctx);
         if (ret <= 0) {
             if (ret < 0) {
                 av_log(avctx, AV_LOG_ERROR, "Invalid NAL unit %d, skipping.\n",
diff --git a/libavcodec/h2645_parse.h b/libavcodec/h2645_parse.h
new file mode 100644
index 0000000000..4901ccfbc1
--- /dev/null
+++ b/libavcodec/h2645_parse.h
@@ -0,0 +1,64 @@
+/*
+ * H.264/HEVC common parsing code
+ *
+ * This file is part of Libav.
+ *
+ * Libav is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * Libav is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with Libav; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_H2645_PARSE_H
+#define AVCODEC_H2645_PARSE_H
+
+#include <stdint.h>
+
+#include "avcodec.h"
+#include "get_bits.h"
+
+typedef struct H2645NAL {
+    uint8_t *rbsp_buffer;
+    int rbsp_buffer_size;
+
+    int size;
+    const uint8_t *data;
+
+    int raw_size;
+    const uint8_t *raw_data;
+
+    GetBitContext gb;
+
+    int type;
+    int temporal_id;
+} H2645NAL;
+
+/* an input packet split into unescaped NAL units */
+typedef struct H2645Packet {
+    H2645NAL *nals;
+    int nb_nals;
+    int nals_allocated;
+} H2645Packet;
+
+/**
+ * Extract the raw (unescaped) bitstream.
+ */
+int ff_h2645_extract_rbsp(const uint8_t *src, int length,
+                          H2645NAL *nal);
+
+/**
+ * Split an input packet into NAL units.
+ */
+int ff_h2645_packet_split(H2645Packet *pkt, const uint8_t *buf, int length,
+                          AVCodecContext *avctx, int is_nalff, int nal_length_size);
+
+#endif /* AVCODEC_H2645_PARSE_H */
diff --git a/libavcodec/hevc.c b/libavcodec/hevc.c
index a5a525a6df..69c4f26aa6 100644
--- a/libavcodec/hevc.c
+++ b/libavcodec/hevc.c
@@ -2429,7 +2429,7 @@ fail:
     return ret;
 }
 
-static int decode_nal_unit(HEVCContext *s, const HEVCNAL *nal)
+static int decode_nal_unit(HEVCContext *s, const H2645NAL *nal)
 {
     HEVCLocalContext *lc = &s->HEVClc;
     GetBitContext *gb    = &lc->gb;
@@ -2581,8 +2581,8 @@ static int decode_nal_units(HEVCContext *s, const uint8_t *buf, int length)
 
     /* split the input packet into NAL units, so we know the upper bound on the
      * number of slices in the frame */
-    ret = ff_hevc_split_packet(&s->pkt, buf, length, s->avctx, s->is_nalff,
-                               s->nal_length_size);
+    ret = ff_h2645_packet_split(&s->pkt, buf, length, s->avctx, s->is_nalff,
+                                s->nal_length_size);
     if (ret < 0) {
         av_log(s->avctx, AV_LOG_ERROR,
                "Error splitting the input into NAL units.\n");
diff --git a/libavcodec/hevc.h b/libavcodec/hevc.h
index 1860bf5728..d15af71986 100644
--- a/libavcodec/hevc.h
+++ b/libavcodec/hevc.h
@@ -33,6 +33,7 @@
 #include "bswapdsp.h"
 #include "cabac.h"
 #include "get_bits.h"
+#include "h2645_parse.h"
 #include "hevcdsp.h"
 #include "internal.h"
 #include "thread.h"
@@ -704,29 +705,6 @@ typedef struct HEVCFrame {
     uint8_t flags;
 } HEVCFrame;
 
-typedef struct HEVCNAL {
-    uint8_t *rbsp_buffer;
-    int rbsp_buffer_size;
-
-    int size;
-    const uint8_t *data;
-
-    int raw_size;
-    const uint8_t *raw_data;
-
-    GetBitContext gb;
-
-    enum NALUnitType type;
-    int temporal_id;
-} HEVCNAL;
-
-/* an input packet split into unescaped NAL units */
-typedef struct HEVCPacket {
-    HEVCNAL *nals;
-    int nb_nals;
-    int nals_allocated;
-} HEVCPacket;
-
 struct HEVCContext;
 
 typedef struct HEVCPredContext {
@@ -852,7 +830,7 @@ typedef struct HEVCContext {
     uint16_t seq_decode;
     uint16_t seq_output;
 
-    HEVCPacket pkt;
+    H2645Packet pkt;
     // type of the first VCL NAL of the current frame
     enum NALUnitType first_nal_type;
 
@@ -1023,18 +1001,6 @@ void ff_hevc_pps_free(HEVCPPS **ppps);
 
 void ff_hevc_pred_init(HEVCPredContext *hpc, int bit_depth);
 
-/**
- * Extract the raw (unescaped) HEVC bitstream.
- */
-int ff_hevc_extract_rbsp(const uint8_t *src, int length,
-                         HEVCNAL *nal);
-
-/**
- * Split an input packet into NAL units.
- */
-int ff_hevc_split_packet(HEVCPacket *pkt, const uint8_t *buf, int length,
-                         AVCodecContext *avctx, int is_nalff, int nal_length_size);
-
 int ff_hevc_encode_nal_vps(HEVCVPS *vps, unsigned int id,
                            uint8_t *buf, int buf_size);
 
diff --git a/libavcodec/hevc_parser.c b/libavcodec/hevc_parser.c
index 030163e7e0..20eae54e79 100644
--- a/libavcodec/hevc_parser.c
+++ b/libavcodec/hevc_parser.c
@@ -24,6 +24,7 @@
 
 #include "golomb.h"
 #include "hevc.h"
+#include "h2645_parse.h"
 #include "parser.h"
 
 #define START_CODE 0x000001 ///< start_code_prefix_one_3bytes
@@ -33,13 +34,13 @@
 typedef struct HEVCParserContext {
     ParseContext pc;
 
-    HEVCPacket pkt;
+    H2645Packet pkt;
     HEVCParamSets ps;
 
     int parsed_extradata;
 } HEVCParserContext;
 
-static int hevc_parse_slice_header(AVCodecParserContext *s, HEVCNAL *nal,
+static int hevc_parse_slice_header(AVCodecParserContext *s, H2645NAL *nal,
                                    AVCodecContext *avctx)
 {
     HEVCParserContext *ctx = s->priv_data;
@@ -81,12 +82,12 @@ static int parse_nal_units(AVCodecParserContext *s, const uint8_t *buf,
     HEVCParserContext *ctx = s->priv_data;
     int ret, i;
 
-    ret = ff_hevc_split_packet(&ctx->pkt, buf, buf_size, avctx, 0, 0);
+    ret = ff_h2645_packet_split(&ctx->pkt, buf, buf_size, avctx, 0, 0);
     if (ret < 0)
         return ret;
 
     for (i = 0; i < ctx->pkt.nb_nals; i++) {
-        HEVCNAL *nal = &ctx->pkt.nals[i];
+        H2645NAL *nal = &ctx->pkt.nals[i];
 
         /* ignore everything except parameter sets and VCL NALUs */
         switch (nal->type) {
diff --git a/libavcodec/qsvenc_hevc.c b/libavcodec/qsvenc_hevc.c
index 8884e240d9..706191dc65 100644
--- a/libavcodec/qsvenc_hevc.c
+++ b/libavcodec/qsvenc_hevc.c
@@ -31,6 +31,7 @@
 #include "bytestream.h"
 #include "get_bits.h"
 #include "hevc.h"
+#include "h2645_parse.h"
 #include "internal.h"
 #include "qsv.h"
 #include "qsv_internal.h"
@@ -54,7 +55,7 @@ static int generate_fake_vps(QSVEncContext *q, AVCodecContext *avctx)
     PutByteContext pbc;
 
     GetBitContext gb;
-    HEVCNAL sps_nal = { NULL };
+    H2645NAL sps_nal = { NULL };
     HEVCSPS sps = { 0 };
     HEVCVPS vps = { 0 };
     uint8_t vps_buf[128], vps_rbsp_buf[128];
@@ -68,7 +69,7 @@ static int generate_fake_vps(QSVEncContext *q, AVCodecContext *avctx)
     }
 
     /* parse the SPS */
-    ret = ff_hevc_extract_rbsp(avctx->extradata + 4, avctx->extradata_size - 4, &sps_nal);
+    ret = ff_h2645_extract_rbsp(avctx->extradata + 4, avctx->extradata_size - 4, &sps_nal);
     if (ret < 0) {
         av_log(avctx, AV_LOG_ERROR, "Error unescaping the SPS buffer\n");
         return ret;