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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,135 @@ | ||
| #include "mov-writer.h" | ||
| #include "mov-format.h" | ||
| #include "aom-av1.h" | ||
| #include <stdio.h> | ||
| #include <stdlib.h> | ||
| #include <string.h> | ||
| #include <assert.h> | ||
|
|
||
| extern "C" const struct mov_buffer_t* mov_file_buffer(void); | ||
|
|
||
| enum | ||
| { | ||
| OBU_SEQUENCE_HEADER = 1, | ||
| OBU_TEMPORAL_DELIMITER = 2, | ||
| OBU_FRAME = 6, | ||
| }; | ||
|
|
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| static uint8_t s_buffer[2 * 1024 * 1024]; | ||
| static uint8_t s_extra_data[64 * 1024]; | ||
|
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| struct mov_av1_test_t | ||
| { | ||
| mov_writer_t* mov; | ||
| struct aom_av1_t av1; | ||
|
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| int track; | ||
| int width; | ||
| int height; | ||
| uint32_t pts, dts; | ||
| uint8_t* ptr; | ||
| int bytes; | ||
|
|
||
| int vcl; | ||
| int keyframe; | ||
| }; | ||
|
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| static uint8_t* file_read(const char* file, long* size) | ||
| { | ||
| FILE* fp = fopen(file, "rb"); | ||
| if (fp) | ||
| { | ||
| fseek(fp, 0, SEEK_END); | ||
| *size = ftell(fp); | ||
| fseek(fp, 0, SEEK_SET); | ||
|
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| uint8_t* ptr = (uint8_t*)malloc(*size); | ||
| fread(ptr, 1, *size, fp); | ||
| fclose(fp); | ||
|
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| return ptr; | ||
| } | ||
|
|
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| return NULL; | ||
| } | ||
|
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| static int av1_write(struct mov_av1_test_t* ctx, const void* data, int bytes) | ||
| { | ||
| if (ctx->track < 0) | ||
| { | ||
| int r = aom_av1_codec_configuration_record_init(&ctx->av1, data, bytes); | ||
| if (ctx->av1.width < 1 || ctx->av1.height < 1) | ||
| { | ||
| //ctx->ptr = end; | ||
| return -2; // waiting for sps/pps | ||
| } | ||
|
|
||
| int extra_data_size = aom_av1_codec_configuration_record_save(&ctx->av1, s_extra_data, sizeof(s_extra_data)); | ||
| if (extra_data_size <= 0) | ||
| { | ||
| // invalid AVCC | ||
| assert(0); | ||
| return -1; | ||
| } | ||
|
|
||
| // TODO: waiting for key frame ??? | ||
| ctx->track = mov_writer_add_video(ctx->mov, MOV_OBJECT_AV1, ctx->width, ctx->height, s_extra_data, extra_data_size); | ||
| if (ctx->track < 0) | ||
| return -1; | ||
| } | ||
|
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| mov_writer_write(ctx->mov, ctx->track, data, bytes, ctx->pts, ctx->pts, ctx->keyframe ? MOV_AV_FLAG_KEYFREAME : 0); | ||
| ctx->pts += 40; | ||
| ctx->dts += 40; | ||
| return 0; | ||
| } | ||
|
|
||
| static int av1_handler(void* param, const uint8_t* obu, size_t bytes) | ||
| { | ||
| struct mov_av1_test_t* ctx = (struct mov_av1_test_t*)param; | ||
|
|
||
| uint8_t obu_type = (obu[0] >> 3) & 0x0F; | ||
| if (ctx->vcl > 0 && OBU_TEMPORAL_DELIMITER == obu_type) | ||
| { | ||
| int r = av1_write(ctx, ctx->ptr, ctx->bytes); | ||
| if (-1 == r) | ||
| return 0; // wait for more data | ||
|
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||
| ctx->bytes = 0; | ||
| ctx->vcl = 0; | ||
| ctx->keyframe = 0; | ||
| } | ||
|
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| if (OBU_TEMPORAL_DELIMITER == obu_type) | ||
| return 0; // ignore | ||
| if (OBU_SEQUENCE_HEADER == obu_type) | ||
| ctx->keyframe = 1; | ||
| if (OBU_FRAME == obu_type) | ||
| ++ctx->vcl; | ||
|
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||
| memcpy(ctx->ptr + ctx->bytes, obu, bytes); | ||
| ctx->bytes += bytes; | ||
| return 0; | ||
| } | ||
|
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||
| void mov_writer_av1(const char* obu, int width, int height, const char* mp4) | ||
| { | ||
| struct mov_av1_test_t ctx; | ||
| memset(&ctx, 0, sizeof(ctx)); | ||
| ctx.track = -1; | ||
| ctx.width = width; | ||
| ctx.height = height; | ||
| ctx.ptr = s_buffer; | ||
|
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| long bytes = 0; | ||
| uint8_t* ptr = file_read(obu, &bytes); | ||
| if (NULL == ptr) return; | ||
|
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| FILE* fp = fopen(mp4, "wb+"); | ||
| ctx.mov = mov_writer_create(mov_file_buffer(), fp, MOV_FLAG_FASTSTART); | ||
| aom_av1_obu_split(ptr, bytes, av1_handler, &ctx); | ||
| mov_writer_destroy(ctx.mov); | ||
|
|
||
| fclose(fp); | ||
| free(ptr); | ||
| } |
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