// TODO(tomfinegan): Improve command line parsing and add args for bitrate/fps.
int main(int argc, char **argv) {
FILE *infile = NULL;
aom_codec_ctx_t codec;
aom_codec_enc_cfg_t cfg;
int frame_count = 0;
aom_image_t raw;
aom_codec_err_t res;
AvxVideoInfo info;
AvxVideoWriter *writer = NULL;
const AvxInterface *encoder = NULL;
const int fps = 30;
const int bitrate = 200;
int keyframe_interval = 0;
int max_frames = 0;
int frames_encoded = 0;
const char *codec_arg = NULL;
const char *width_arg = NULL;
const char *height_arg = NULL;
const char *infile_arg = NULL;
const char *outfile_arg = NULL;
const char *keyframe_interval_arg = NULL;
exec_name = argv[0];
// Clear explicitly, as simply assigning "{ 0 }" generates
// "missing-field-initializers" warning in some compilers.
memset(&info, 0, sizeof(info));
if (argc != 9) die("Invalid number of arguments");
codec_arg = argv[1];
width_arg = argv[2];
height_arg = argv[3];
infile_arg = argv[4];
outfile_arg = argv[5];
keyframe_interval_arg = argv[6];
max_frames = (int)strtol(argv[8], NULL, 0);
encoder = get_aom_encoder_by_name(codec_arg);
if (!encoder) die("Unsupported codec.");
info.codec_fourcc = encoder->fourcc;
info.frame_width = (int)strtol(width_arg, NULL, 0);
info.frame_height = (int)strtol(height_arg, NULL, 0);
info.time_base.numerator = 1;
info.time_base.denominator = fps;
if (info.frame_width <= 0 || info.frame_height <= 0 ||
(info.frame_width % 2) != 0 || (info.frame_height % 2) != 0) {
die("Invalid frame size: %dx%d", info.frame_width, info.frame_height);
}
if (!aom_img_alloc(&raw, AOM_IMG_FMT_I420, info.frame_width,
info.frame_height, 1)) {
die("Failed to allocate image.");
}
keyframe_interval = (int)strtol(keyframe_interval_arg, NULL, 0);
if (keyframe_interval < 0) die("Invalid keyframe interval value.");
printf("Using %s\n", aom_codec_iface_name(encoder->codec_interface()));
res = aom_codec_enc_config_default(encoder->codec_interface(), &cfg, 0);
if (res) die_codec(&codec, "Failed to get default codec config.");
cfg.g_w = info.frame_width;
cfg.g_h = info.frame_height;
cfg.g_timebase.num = info.time_base.numerator;
cfg.g_timebase.den = info.time_base.denominator;
cfg.rc_target_bitrate = bitrate;
cfg.g_error_resilient = (aom_codec_er_flags_t)strtoul(argv[7], NULL, 0);
writer = aom_video_writer_open(outfile_arg, kContainerIVF, &info);
if (!writer) die("Failed to open %s for writing.", outfile_arg);
if (!(infile = fopen(infile_arg, "rb")))
die("Failed to open %s for reading.", infile_arg);
if (aom_codec_enc_init(&codec, encoder->codec_interface(), &cfg, 0))
die_codec(&codec, "Failed to initialize encoder");
// Encode frames.
while (aom_img_read(&raw, infile)) {
int flags = 0;
if (keyframe_interval > 0 && frame_count % keyframe_interval == 0)
flags |= AOM_EFLAG_FORCE_KF;
encode_frame(&codec, &raw, frame_count++, flags, writer);
frames_encoded++;
if (max_frames > 0 && frames_encoded >= max_frames) break;
}
// Flush encoder.
while (encode_frame(&codec, NULL, -1, 0, writer)) continue;
printf("\n");
fclose(infile);
printf("Processed %d frames.\n", frame_count);
aom_img_free(&raw);
if (aom_codec_destroy(&codec)) die_codec(&codec, "Failed to destroy codec.");
aom_video_writer_close(writer);
return EXIT_SUCCESS;
}
static void pass1(aom_image_t *raw, FILE *infile, const char *outfile_name,
const AvxInterface *encoder, aom_codec_enc_cfg_t *cfg,
int lf_width, int lf_height, int lf_blocksize, int flags,
aom_image_t *raw_shift) {
AvxVideoInfo info = { encoder->fourcc,
cfg->g_w,
cfg->g_h,
{ cfg->g_timebase.num, cfg->g_timebase.den },
0 };
AvxVideoWriter *writer = NULL;
aom_codec_ctx_t codec;
int frame_count = 0;
int image_size_bytes = aom_img_size_bytes(raw);
int bu, bv;
int u_blocks, v_blocks;
aom_image_t *frame_to_encode;
aom_image_t reference_images[MAX_EXTERNAL_REFERENCES];
int reference_image_num = 0;
int i;
writer = aom_video_writer_open(outfile_name, kContainerIVF, &info);
if (!writer) die("Failed to open %s for writing", outfile_name);
if (aom_codec_enc_init(&codec, encoder->codec_interface(), cfg, flags))
die_codec(&codec, "Failed to initialize encoder");
if (aom_codec_control(&codec, AOME_SET_ENABLEAUTOALTREF, 0))
die_codec(&codec, "Failed to turn off auto altref");
if (aom_codec_control(&codec, AV1E_SET_FRAME_PARALLEL_DECODING, 0))
die_codec(&codec, "Failed to set frame parallel decoding");
// Note: The superblock is a sequence parameter and has to be the same for 1
// sequence. In lightfield application, must choose the superblock size(either
// 64x64 or 128x128) before the encoding starts. Otherwise, the default is
// AOM_SUPERBLOCK_SIZE_DYNAMIC, and the superblock size will be set to 64x64
// internally.
if (aom_codec_control(&codec, AV1E_SET_SUPERBLOCK_SIZE,
AOM_SUPERBLOCK_SIZE_64X64))
die_codec(&codec, "Failed to set SB size");
u_blocks = (lf_width + lf_blocksize - 1) / lf_blocksize;
v_blocks = (lf_height + lf_blocksize - 1) / lf_blocksize;
reference_image_num = u_blocks * v_blocks;
aom_img_fmt_t ref_fmt = AOM_IMG_FMT_I420;
if (!CONFIG_LOWBITDEPTH) ref_fmt |= AOM_IMG_FMT_HIGHBITDEPTH;
// Allocate memory with the border so that it can be used as a reference.
for (i = 0; i < reference_image_num; i++) {
if (!aom_img_alloc_with_border(&reference_images[i], ref_fmt, cfg->g_w,
cfg->g_h, 32, 8, AOM_BORDER_IN_PIXELS)) {
die("Failed to allocate image.");
}
}
printf("\n Second pass: "******"Encoding Reference Images\n");
for (bv = 0; bv < v_blocks; ++bv) {
for (bu = 0; bu < u_blocks; ++bu) {
const int block_u_min = bu * lf_blocksize;
const int block_v_min = bv * lf_blocksize;
int block_u_end = (bu + 1) * lf_blocksize;
int block_v_end = (bv + 1) * lf_blocksize;
int u_block_size, v_block_size;
int block_ref_u, block_ref_v;
block_u_end = block_u_end < lf_width ? block_u_end : lf_width;
block_v_end = block_v_end < lf_height ? block_v_end : lf_height;
u_block_size = block_u_end - block_u_min;
v_block_size = block_v_end - block_v_min;
block_ref_u = block_u_min + u_block_size / 2;
block_ref_v = block_v_min + v_block_size / 2;
printf("A%d, ", (block_ref_u + block_ref_v * lf_width));
fseek(infile, (block_ref_u + block_ref_v * lf_width) * image_size_bytes,
SEEK_SET);
aom_img_read(raw, infile);
get_raw_image(&frame_to_encode, raw, raw_shift);
// Reference frames may be encoded without tiles.
++frame_count;
printf("Encoding reference image %d of %d\n", bv * u_blocks + bu,
u_blocks * v_blocks);
encode_frame(&codec, frame_to_encode, frame_count, 1,
AOM_EFLAG_NO_REF_LAST2 | AOM_EFLAG_NO_REF_LAST3 |
AOM_EFLAG_NO_REF_GF | AOM_EFLAG_NO_REF_ARF |
AOM_EFLAG_NO_REF_BWD | AOM_EFLAG_NO_REF_ARF2 |
AOM_EFLAG_NO_UPD_LAST | AOM_EFLAG_NO_UPD_GF |
AOM_EFLAG_NO_UPD_ARF | AOM_EFLAG_NO_UPD_ENTROPY,
writer);
if (aom_codec_control(&codec, AV1_COPY_NEW_FRAME_IMAGE,
&reference_images[frame_count - 1]))
die_codec(&codec, "Failed to copy decoder reference frame");
}
}
cfg->large_scale_tile = 1;
// Fixed q encoding for camera frames.
cfg->rc_end_usage = AOM_Q;
if (aom_codec_enc_config_set(&codec, cfg))
die_codec(&codec, "Failed to configure encoder");
// The fixed q value used in encoding.
if (aom_codec_control(&codec, AOME_SET_CQ_LEVEL, 36))
die_codec(&codec, "Failed to set cq level");
if (aom_codec_control(&codec, AV1E_SET_FRAME_PARALLEL_DECODING, 1))
die_codec(&codec, "Failed to set frame parallel decoding");
if (aom_codec_control(&codec, AV1E_SET_SINGLE_TILE_DECODING, 1))
die_codec(&codec, "Failed to turn on single tile decoding");
// Set tile_columns and tile_rows to MAX values, which guarantees the tile
// size of 64 x 64 pixels(i.e. 1 SB) for <= 4k resolution.
if (aom_codec_control(&codec, AV1E_SET_TILE_COLUMNS, 6))
die_codec(&codec, "Failed to set tile width");
if (aom_codec_control(&codec, AV1E_SET_TILE_ROWS, 6))
die_codec(&codec, "Failed to set tile height");
for (bv = 0; bv < v_blocks; ++bv) {
for (bu = 0; bu < u_blocks; ++bu) {
const int block_u_min = bu * lf_blocksize;
const int block_v_min = bv * lf_blocksize;
int block_u_end = (bu + 1) * lf_blocksize;
int block_v_end = (bv + 1) * lf_blocksize;
int u, v;
block_u_end = block_u_end < lf_width ? block_u_end : lf_width;
block_v_end = block_v_end < lf_height ? block_v_end : lf_height;
for (v = block_v_min; v < block_v_end; ++v) {
for (u = block_u_min; u < block_u_end; ++u) {
av1_ref_frame_t ref;
ref.idx = 0;
ref.use_external_ref = 1;
ref.img = reference_images[bv * u_blocks + bu];
if (aom_codec_control(&codec, AV1_SET_REFERENCE, &ref))
die_codec(&codec, "Failed to set reference frame");
printf("C%d, ", (u + v * lf_width));
fseek(infile, (u + v * lf_width) * image_size_bytes, SEEK_SET);
aom_img_read(raw, infile);
get_raw_image(&frame_to_encode, raw, raw_shift);
++frame_count;
printf("Encoding image %d of %d\n",
frame_count - (u_blocks * v_blocks), lf_width * lf_height);
encode_frame(&codec, frame_to_encode, frame_count, 1,
AOM_EFLAG_NO_REF_LAST2 | AOM_EFLAG_NO_REF_LAST3 |
AOM_EFLAG_NO_REF_GF | AOM_EFLAG_NO_REF_ARF |
AOM_EFLAG_NO_REF_BWD | AOM_EFLAG_NO_REF_ARF2 |
AOM_EFLAG_NO_UPD_LAST | AOM_EFLAG_NO_UPD_GF |
AOM_EFLAG_NO_UPD_ARF | AOM_EFLAG_NO_UPD_ENTROPY,
writer);
}
}
}
}
// Flush encoder.
// No ARF, this should not be needed.
while (encode_frame(&codec, NULL, -1, 1, 0, writer)) {
}
for (i = 0; i < reference_image_num; i++) aom_img_free(&reference_images[i]);
if (aom_codec_destroy(&codec)) die_codec(&codec, "Failed to destroy codec.");
aom_video_writer_close(writer);
printf("\nSecond pass complete. Processed %d frames.\n", frame_count);
}
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;
}
