int main(int argc, char **argv) { int frame_cnt = 0; FILE *outfile = NULL; aom_codec_ctx_t codec; AvxVideoReader *reader = NULL; const AvxInterface *decoder = NULL; const AvxVideoInfo *info = NULL; exec_name = argv[0]; if (argc != 3) die("Invalid number of arguments."); reader = aom_video_reader_open(argv[1]); if (!reader) die("Failed to open %s for reading.", argv[1]); if (!(outfile = fopen(argv[2], "wb"))) die("Failed to open %s for writing.", argv[2]); info = aom_video_reader_get_info(reader); decoder = get_aom_decoder_by_fourcc(info->codec_fourcc); if (!decoder) die("Unknown input codec."); printf("Using %s\n", aom_codec_iface_name(decoder->codec_interface())); if (aom_codec_dec_init(&codec, decoder->codec_interface(), NULL, 0)) die_codec(&codec, "Failed to initialize decoder."); while (aom_video_reader_read_frame(reader)) { aom_codec_iter_t iter = NULL; aom_image_t *img = NULL; size_t frame_size = 0; const unsigned char *frame = aom_video_reader_get_frame(reader, &frame_size); if (aom_codec_decode(&codec, frame, frame_size, NULL)) die_codec(&codec, "Failed to decode frame."); while ((img = aom_codec_get_frame(&codec, &iter)) != NULL) { aom_img_write(img, outfile); ++frame_cnt; } } printf("Processed %d frames.\n", frame_cnt); if (aom_codec_destroy(&codec)) die_codec(&codec, "Failed to destroy codec"); printf("Play: ffplay -f rawvideo -pix_fmt yuv420p -s %dx%d %s\n", info->frame_width, info->frame_height, argv[2]); aom_video_reader_close(reader); fclose(outfile); return EXIT_SUCCESS; }
EMSCRIPTEN_KEEPALIVE int open_file(char *file) { if (file == NULL) { file = "/tmp/input.ivf"; } reader = aom_video_reader_open(file); if (!reader) die("Failed to open %s for reading.", file); info = aom_video_reader_get_info(reader); decoder = get_aom_decoder_by_fourcc(info->codec_fourcc); if (!decoder) die("Unknown input codec."); printf("Using %s\n", aom_codec_iface_name(decoder->codec_interface())); if (aom_codec_dec_init(&codec, decoder->codec_interface(), NULL, 0)) die_codec(&codec, "Failed to initialize decoder."); init_analyzer(); aom_codec_control(&codec, ANALYZER_SET_DATA, &analyzer_data); printf("Opened file %s okay.\n", file); return EXIT_SUCCESS; }
int main(int argc, char **argv) { aom_codec_ctx_t codec; AvxVideoReader *reader = NULL; AvxVideoWriter *writer = NULL; const AvxInterface *decoder = NULL; const AvxVideoInfo *info = NULL; int num_references; int i; aom_codec_pts_t pts; const char *tile_list_file = NULL; exec_name = argv[0]; if (argc != 5) die("Invalid number of arguments."); reader = aom_video_reader_open(argv[1]); if (!reader) die("Failed to open %s for reading.", argv[1]); num_references = (int)strtol(argv[3], NULL, 0); info = aom_video_reader_get_info(reader); // The writer to write out ivf file in tile list OBU, which can be decoded by // AV1 decoder. writer = aom_video_writer_open(argv[2], kContainerIVF, info); if (!writer) die("Failed to open %s for writing", argv[2]); tile_list_file = argv[4]; decoder = get_aom_decoder_by_fourcc(info->codec_fourcc); if (!decoder) die("Unknown input codec."); printf("Using %s\n", aom_codec_iface_name(decoder->codec_interface())); if (aom_codec_dec_init(&codec, decoder->codec_interface(), NULL, 0)) die_codec(&codec, "Failed to initialize decoder."); // Decode anchor frames. aom_codec_control_(&codec, AV1_SET_TILE_MODE, 0); printf("Reading %d reference images.\n", num_references); for (i = 0; i < num_references; ++i) { aom_video_reader_read_frame(reader); size_t frame_size = 0; const unsigned char *frame = aom_video_reader_get_frame(reader, &frame_size); pts = (aom_codec_pts_t)aom_video_reader_get_frame_pts(reader); // Copy references bitstream directly. if (!aom_video_writer_write_frame(writer, frame, frame_size, pts)) die_codec(&codec, "Failed to copy compressed anchor frame."); if (aom_codec_decode(&codec, frame, frame_size, NULL)) die_codec(&codec, "Failed to decode frame."); } // Decode camera frames. aom_codec_control_(&codec, AV1_SET_TILE_MODE, 1); aom_codec_control_(&codec, AV1D_EXT_TILE_DEBUG, 1); FILE *infile = aom_video_reader_get_file(reader); // Record the offset of the first camera image. const FileOffset camera_frame_pos = ftello(infile); printf("Loading compressed frames into memory.\n"); // Count the frames in the lightfield. int num_frames = 0; while (aom_video_reader_read_frame(reader)) { ++num_frames; } if (num_frames < 1) die("Input light field has no frames."); // Read all of the lightfield frames into memory. unsigned char **frames = (unsigned char **)malloc(num_frames * sizeof(unsigned char *)); size_t *frame_sizes = (size_t *)malloc(num_frames * sizeof(size_t)); // Seek to the first camera image. fseeko(infile, camera_frame_pos, SEEK_SET); for (int f = 0; f < num_frames; ++f) { aom_video_reader_read_frame(reader); size_t frame_size = 0; const unsigned char *frame = aom_video_reader_get_frame(reader, &frame_size); frames[f] = (unsigned char *)malloc(frame_size * sizeof(unsigned char)); memcpy(frames[f], frame, frame_size); frame_sizes[f] = frame_size; } printf("Read %d frames.\n", num_frames); // Copy first camera frame for getting camera frame header. This is done // only once. { size_t frame_size = frame_sizes[0]; const unsigned char *frame = frames[0]; pts = num_references; aom_tile_data frame_header_info = { 0, NULL, 0 }; // Need to decode frame header to get camera frame header info. So, here // decoding 1 tile is enough. aom_codec_control_(&codec, AV1_SET_DECODE_TILE_ROW, 0); aom_codec_control_(&codec, AV1_SET_DECODE_TILE_COL, 0); aom_codec_err_t aom_status = aom_codec_decode(&codec, frame, frame_size, NULL); if (aom_status) die_codec(&codec, "Failed to decode tile."); aom_codec_control_(&codec, AV1D_GET_FRAME_HEADER_INFO, &frame_header_info); size_t obu_size_offset = (uint8_t *)frame_header_info.coded_tile_data - frame; size_t length_field_size = frame_header_info.coded_tile_data_size; // Remove ext-tile tile info. uint32_t frame_header_size = (uint32_t)frame_header_info.extra_size - 1; size_t bytes_to_copy = obu_size_offset + length_field_size + frame_header_size; unsigned char *frame_hdr_buf = (unsigned char *)malloc(bytes_to_copy); if (frame_hdr_buf == NULL) die_codec(&codec, "Failed to allocate frame header buffer."); memcpy(frame_hdr_buf, frame, bytes_to_copy); // Update frame header OBU size. size_t bytes_written = 0; if (aom_uleb_encode_fixed_size( frame_header_size, length_field_size, length_field_size, frame_hdr_buf + obu_size_offset, &bytes_written)) die_codec(&codec, "Failed to encode the tile list obu size."); // Copy camera frame header bitstream. if (!aom_video_writer_write_frame(writer, frame_hdr_buf, bytes_to_copy, pts)) die_codec(&codec, "Failed to copy compressed camera frame header."); free(frame_hdr_buf); } // Read out the image format. aom_img_fmt_t ref_fmt = 0; if (aom_codec_control(&codec, AV1D_GET_IMG_FORMAT, &ref_fmt)) die_codec(&codec, "Failed to get the image format"); const int bps = get_image_bps(ref_fmt); if (!bps) die_codec(&codec, "Invalid image format."); // read out the tile size. unsigned int tile_size = 0; if (aom_codec_control(&codec, AV1D_GET_TILE_SIZE, &tile_size)) die_codec(&codec, "Failed to get the tile size"); const unsigned int tile_width = tile_size >> 16; const unsigned int tile_height = tile_size & 65535; // Allocate a buffer to store tile list bitstream. const size_t data_sz = MAX_TILES * ALIGN_POWER_OF_TWO(tile_width, 5) * ALIGN_POWER_OF_TWO(tile_height, 5) * bps / 8; unsigned char *tl_buf = (unsigned char *)malloc(data_sz); if (tl_buf == NULL) die_codec(&codec, "Failed to allocate tile list buffer."); aom_codec_pts_t tl_pts = num_references; const uint8_t output_frame_width_in_tiles_minus_1 = output_frame_width / tile_width - 1; const uint8_t output_frame_height_in_tiles_minus_1 = output_frame_height / tile_height - 1; printf("Reading tile list from file.\n"); char line[1024]; FILE *tile_list_fptr = fopen(tile_list_file, "r"); if (!tile_list_fptr) die_codec(&codec, "Failed to open tile list file."); int num_tiles = 0; TILE_LIST_INFO tiles[MAX_TILES]; while ((fgets(line, 1024, tile_list_fptr)) != NULL) { if (line[0] == 'F' || num_tiles >= MAX_TILES) { // Flush existing tile list and start another, either because we hit a // new render frame or because we've hit our max number of tiles per list. if (num_tiles > 0) { process_tile_list(tiles, num_tiles, tl_pts, frames, frame_sizes, &codec, tl_buf, writer, output_frame_width_in_tiles_minus_1, output_frame_height_in_tiles_minus_1); ++tl_pts; } num_tiles = 0; } if (line[0] == 'F') { continue; } if (sscanf(line, "%d %d %d %d", &tiles[num_tiles].image_idx, &tiles[num_tiles].reference_idx, &tiles[num_tiles].tile_col, &tiles[num_tiles].tile_row) == 4) { if (tiles[num_tiles].image_idx >= num_frames) { die("Tile list image_idx out of bounds: %d >= %d.", tiles[num_tiles].image_idx, num_frames); } if (tiles[num_tiles].reference_idx >= num_references) { die("Tile list reference_idx out of bounds: %d >= %d.", tiles[num_tiles].reference_idx, num_references); } ++num_tiles; } } if (num_tiles > 0) { // Flush out the last tile list. process_tile_list(tiles, num_tiles, tl_pts, frames, frame_sizes, &codec, tl_buf, writer, output_frame_width_in_tiles_minus_1, output_frame_height_in_tiles_minus_1); ++tl_pts; } const int num_tile_lists = (int)(tl_pts - pts); printf("Finished processing tile lists. Num tile lists: %d.\n", num_tile_lists); free(tl_buf); for (int f = 0; f < num_frames; ++f) { free(frames[f]); } free(frame_sizes); free(frames); if (aom_codec_destroy(&codec)) die_codec(&codec, "Failed to destroy codec"); aom_video_writer_close(writer); aom_video_reader_close(reader); return EXIT_SUCCESS; }