137 lines
3.0 KiB
C++
137 lines
3.0 KiB
C++
#include "mp4-writer.h"
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#include "mov-format.h"
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#include "mpeg4-hevc.h"
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#include "mpeg4-avc.h"
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <assert.h>
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#define MOV_WRITER_H265_FMP4 0
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extern "C" const struct mov_buffer_t* mov_file_buffer(void);
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#define H265_NAL(v) ((v >> 1) & 0x3F)
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static uint8_t s_buffer[2 * 1024 * 1024];
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static uint8_t s_extra_data[64 * 1024];
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struct mov_h265_test_t
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{
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mp4_writer_t* mov;
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struct mpeg4_hevc_t hevc;
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int track;
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int width;
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int height;
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uint32_t pts, dts;
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const uint8_t* ptr;
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uint8_t buf[1024 * 64];
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int bytes;
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int vcl;
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};
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static uint8_t* file_read(const char* file, long* size)
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{
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FILE* fp = fopen(file, "rb");
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if (fp)
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{
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fseek(fp, 0, SEEK_END);
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*size = ftell(fp);
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fseek(fp, 0, SEEK_SET);
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uint8_t* ptr = (uint8_t*)malloc(*size);
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fread(ptr, 1, *size, fp);
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fclose(fp);
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return ptr;
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}
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return NULL;
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}
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static int h265_write(struct mov_h265_test_t* ctx, const void* data, int bytes)
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{
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int vcl = 0;
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int update = 0;
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int n = h265_annexbtomp4(&ctx->hevc, data, bytes, s_buffer, sizeof(s_buffer), &vcl, &update);
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if (ctx->track < 0)
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{
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if (ctx->hevc.numOfArrays < 1)
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{
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//ctx->ptr = end;
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return -2; // waiting for vps/sps/pps
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}
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int extra_data_size = mpeg4_hevc_decoder_configuration_record_save(&ctx->hevc, s_extra_data, sizeof(s_extra_data));
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if (extra_data_size <= 0)
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{
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// invalid HVCC
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assert(0);
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return -1;
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}
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// TODO: waiting for key frame ???
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ctx->track = mp4_writer_add_video(ctx->mov, MOV_OBJECT_HEVC, ctx->width, ctx->height, s_extra_data, extra_data_size);
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if (ctx->track < 0)
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return -1;
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mp4_writer_init_segment(ctx->mov);
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}
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mp4_writer_write(ctx->mov, ctx->track, s_buffer, n, ctx->pts, ctx->pts, 1 == vcl ? MOV_AV_FLAG_KEYFREAME : 0);
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ctx->pts += 40;
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ctx->dts += 40;
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return 0;
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}
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static void h265_handler(void* param, const uint8_t* nalu, size_t bytes)
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{
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static int i = 0;
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static int j = 0;
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static uint8_t startcode[] = {0x00, 0x00, 0x00, 0x01};
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struct mov_h265_test_t* ctx = (struct mov_h265_test_t*)param;
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assert(ctx->ptr < nalu);
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const uint8_t* ptr = nalu - 3;
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// const uint8_t* end = (const uint8_t*)nalu + bytes;
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uint8_t nalutype = (nalu[0] >> 1) & 0x3f;
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if (ctx->vcl > 0 && h265_is_new_access_unit((const uint8_t*)nalu, bytes))
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{
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int r = h265_write(ctx, ctx->ptr, ptr - ctx->ptr);
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if (-1 == r)
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return; // wait for more data
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ctx->ptr = ptr;
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ctx->vcl = 0;
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}
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if (nalutype <= 31)
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++ctx->vcl;
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}
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void mov_writer_h265(const char* h265, int width, int height, const char* mp4)
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{
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struct mov_h265_test_t ctx;
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memset(&ctx, 0, sizeof(ctx));
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ctx.track = -1;
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ctx.width = width;
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ctx.height = height;
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ctx.bytes = 0;
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long bytes = 0;
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uint8_t* ptr = file_read(h265, &bytes);
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if (NULL == ptr) return;
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ctx.ptr = ptr;
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FILE* fp = fopen(mp4, "wb+");
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ctx.mov = mp4_writer_create(MOV_WRITER_H265_FMP4, mov_file_buffer(), fp, MOV_FLAG_FASTSTART | MOV_FLAG_SEGMENT);
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mpeg4_h264_annexb_nalu(ptr, bytes, h265_handler, &ctx);
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mp4_writer_destroy(ctx.mov);
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fclose(fp);
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free(ptr);
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}
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