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hevc_parse: rename into h2645_parse

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This code will be shared with h264.
This commit is contained in:
Anton Khirnov 2016-03-21 07:26:42 +01:00
parent cdb1665f70
commit fa936a307f
7 changed files with 91 additions and 59 deletions
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6
libavcodec/Makefile
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@ -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 \

22
libavcodec/hevc_parse.c → libavcodec/h2645_parse.c
View File

@ -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",

64
libavcodec/h2645_parse.h Normal file
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@ -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 */

6
libavcodec/hevc.c
View File

@ -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");

38
libavcodec/hevc.h
View File

@ -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);

9
libavcodec/hevc_parser.c
View File

@ -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) {

5
libavcodec/qsvenc_hevc.c
View File

@ -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;