diff options
Diffstat (limited to '')
| -rw-r--r-- | third_party/aom/examples/inspect.c | 763 |
1 files changed, 763 insertions, 0 deletions
diff --git a/third_party/aom/examples/inspect.c b/third_party/aom/examples/inspect.c new file mode 100644 index 0000000000..9d5f0dcfc4 --- /dev/null +++ b/third_party/aom/examples/inspect.c @@ -0,0 +1,763 @@ +/* + * Copyright (c) 2016, Alliance for Open Media. All rights reserved + * + * This source code is subject to the terms of the BSD 2 Clause License and + * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License + * was not distributed with this source code in the LICENSE file, you can + * obtain it at www.aomedia.org/license/software. If the Alliance for Open + * Media Patent License 1.0 was not distributed with this source code in the + * PATENTS file, you can obtain it at www.aomedia.org/license/patent. + */ + +// Inspect Decoder +// ================ +// +// This is a simple decoder loop that writes JSON stats to stdout. This tool +// can also be compiled with Emscripten and used as a library. + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> + +#ifdef __EMSCRIPTEN__ +#include <emscripten.h> +#else +#define EMSCRIPTEN_KEEPALIVE +#endif + +#include "config/aom_config.h" + +#include "aom/aom_decoder.h" +#include "aom/aomdx.h" +#include "av1/common/onyxc_int.h" + +#if CONFIG_ACCOUNTING +#include "av1/decoder/accounting.h" +#endif + +#include "av1/decoder/inspection.h" +#include "common/args.h" +#include "common/tools_common.h" +#include "common/video_common.h" +#include "common/video_reader.h" + +// Max JSON buffer size. +const int MAX_BUFFER = 1024 * 1024 * 32; + +typedef enum { + ACCOUNTING_LAYER = 1, + BLOCK_SIZE_LAYER = 1 << 1, + TRANSFORM_SIZE_LAYER = 1 << 2, + TRANSFORM_TYPE_LAYER = 1 << 3, + MODE_LAYER = 1 << 4, + SKIP_LAYER = 1 << 5, + FILTER_LAYER = 1 << 6, + CDEF_LAYER = 1 << 7, + REFERENCE_FRAME_LAYER = 1 << 8, + MOTION_VECTORS_LAYER = 1 << 9, + UV_MODE_LAYER = 1 << 10, + CFL_LAYER = 1 << 11, + DUAL_FILTER_LAYER = 1 << 12, + Q_INDEX_LAYER = 1 << 13, + SEGMENT_ID_LAYER = 1 << 14, + ALL_LAYERS = (1 << 15) - 1 +} LayerType; + +static LayerType layers = 0; + +static int stop_after = 0; +static int compress = 0; + +static const arg_def_t limit_arg = + ARG_DEF(NULL, "limit", 1, "Stop decoding after n frames"); +static const arg_def_t dump_all_arg = ARG_DEF("A", "all", 0, "Dump All"); +static const arg_def_t compress_arg = + ARG_DEF("x", "compress", 0, "Compress JSON using RLE"); +static const arg_def_t dump_accounting_arg = + ARG_DEF("a", "accounting", 0, "Dump Accounting"); +static const arg_def_t dump_block_size_arg = + ARG_DEF("bs", "blockSize", 0, "Dump Block Size"); +static const arg_def_t dump_motion_vectors_arg = + ARG_DEF("mv", "motionVectors", 0, "Dump Motion Vectors"); +static const arg_def_t dump_transform_size_arg = + ARG_DEF("ts", "transformSize", 0, "Dump Transform Size"); +static const arg_def_t dump_transform_type_arg = + ARG_DEF("tt", "transformType", 0, "Dump Transform Type"); +static const arg_def_t dump_mode_arg = ARG_DEF("m", "mode", 0, "Dump Mode"); +static const arg_def_t dump_uv_mode_arg = + ARG_DEF("uvm", "uv_mode", 0, "Dump UV Intra Prediction Modes"); +static const arg_def_t dump_skip_arg = ARG_DEF("s", "skip", 0, "Dump Skip"); +static const arg_def_t dump_filter_arg = + ARG_DEF("f", "filter", 0, "Dump Filter"); +static const arg_def_t dump_cdef_arg = ARG_DEF("c", "cdef", 0, "Dump CDEF"); +static const arg_def_t dump_cfl_arg = + ARG_DEF("cfl", "chroma_from_luma", 0, "Dump Chroma from Luma Alphas"); +static const arg_def_t dump_dual_filter_type_arg = + ARG_DEF("df", "dualFilterType", 0, "Dump Dual Filter Type"); +static const arg_def_t dump_reference_frame_arg = + ARG_DEF("r", "referenceFrame", 0, "Dump Reference Frame"); +static const arg_def_t dump_delta_q_arg = + ARG_DEF("dq", "delta_q", 0, "Dump QIndex"); +static const arg_def_t dump_seg_id_arg = + ARG_DEF("si", "seg_id", 0, "Dump Segment ID"); +static const arg_def_t usage_arg = ARG_DEF("h", "help", 0, "Help"); + +static const arg_def_t *main_args[] = { &limit_arg, + &dump_all_arg, + &compress_arg, +#if CONFIG_ACCOUNTING + &dump_accounting_arg, +#endif + &dump_block_size_arg, + &dump_transform_size_arg, + &dump_transform_type_arg, + &dump_mode_arg, + &dump_uv_mode_arg, + &dump_skip_arg, + &dump_filter_arg, + &dump_cdef_arg, + &dump_dual_filter_type_arg, + &dump_cfl_arg, + &dump_reference_frame_arg, + &dump_motion_vectors_arg, + &dump_delta_q_arg, + &dump_seg_id_arg, + &usage_arg, + NULL }; +#define ENUM(name) \ + { #name, name } +#define LAST_ENUM \ + { NULL, 0 } +typedef struct map_entry { + const char *name; + int value; +} map_entry; + +const map_entry refs_map[] = { + ENUM(INTRA_FRAME), ENUM(LAST_FRAME), ENUM(LAST2_FRAME), + ENUM(LAST3_FRAME), ENUM(GOLDEN_FRAME), ENUM(BWDREF_FRAME), + ENUM(ALTREF2_FRAME), ENUM(ALTREF_FRAME), LAST_ENUM +}; + +const map_entry block_size_map[] = { + ENUM(BLOCK_4X4), ENUM(BLOCK_4X8), ENUM(BLOCK_8X4), + ENUM(BLOCK_8X8), ENUM(BLOCK_8X16), ENUM(BLOCK_16X8), + ENUM(BLOCK_16X16), ENUM(BLOCK_16X32), ENUM(BLOCK_32X16), + ENUM(BLOCK_32X32), ENUM(BLOCK_32X64), ENUM(BLOCK_64X32), + ENUM(BLOCK_64X64), ENUM(BLOCK_64X128), ENUM(BLOCK_128X64), + ENUM(BLOCK_128X128), ENUM(BLOCK_4X16), ENUM(BLOCK_16X4), + ENUM(BLOCK_8X32), ENUM(BLOCK_32X8), ENUM(BLOCK_16X64), + ENUM(BLOCK_64X16), LAST_ENUM +}; + +const map_entry tx_size_map[] = { + ENUM(TX_4X4), ENUM(TX_8X8), ENUM(TX_16X16), ENUM(TX_32X32), + ENUM(TX_64X64), ENUM(TX_4X8), ENUM(TX_8X4), ENUM(TX_8X16), + ENUM(TX_16X8), ENUM(TX_16X32), ENUM(TX_32X16), ENUM(TX_32X64), + ENUM(TX_64X32), ENUM(TX_4X16), ENUM(TX_16X4), ENUM(TX_8X32), + ENUM(TX_32X8), LAST_ENUM +}; + +const map_entry tx_type_map[] = { ENUM(DCT_DCT), + ENUM(ADST_DCT), + ENUM(DCT_ADST), + ENUM(ADST_ADST), + ENUM(FLIPADST_DCT), + ENUM(DCT_FLIPADST), + ENUM(FLIPADST_FLIPADST), + ENUM(ADST_FLIPADST), + ENUM(FLIPADST_ADST), + ENUM(IDTX), + ENUM(V_DCT), + ENUM(H_DCT), + ENUM(V_ADST), + ENUM(H_ADST), + ENUM(V_FLIPADST), + ENUM(H_FLIPADST), + LAST_ENUM }; +const map_entry dual_filter_map[] = { ENUM(REG_REG), ENUM(REG_SMOOTH), + ENUM(REG_SHARP), ENUM(SMOOTH_REG), + ENUM(SMOOTH_SMOOTH), ENUM(SMOOTH_SHARP), + ENUM(SHARP_REG), ENUM(SHARP_SMOOTH), + ENUM(SHARP_SHARP), LAST_ENUM }; + +const map_entry prediction_mode_map[] = { + ENUM(DC_PRED), ENUM(V_PRED), ENUM(H_PRED), + ENUM(D45_PRED), ENUM(D135_PRED), ENUM(D113_PRED), + ENUM(D157_PRED), ENUM(D203_PRED), ENUM(D67_PRED), + ENUM(SMOOTH_PRED), ENUM(SMOOTH_V_PRED), ENUM(SMOOTH_H_PRED), + ENUM(PAETH_PRED), ENUM(NEARESTMV), ENUM(NEARMV), + ENUM(GLOBALMV), ENUM(NEWMV), ENUM(NEAREST_NEARESTMV), + ENUM(NEAR_NEARMV), ENUM(NEAREST_NEWMV), ENUM(NEW_NEARESTMV), + ENUM(NEAR_NEWMV), ENUM(NEW_NEARMV), ENUM(GLOBAL_GLOBALMV), + ENUM(NEW_NEWMV), ENUM(INTRA_INVALID), LAST_ENUM +}; + +const map_entry uv_prediction_mode_map[] = { + ENUM(UV_DC_PRED), ENUM(UV_V_PRED), + ENUM(UV_H_PRED), ENUM(UV_D45_PRED), + ENUM(UV_D135_PRED), ENUM(UV_D113_PRED), + ENUM(UV_D157_PRED), ENUM(UV_D203_PRED), + ENUM(UV_D67_PRED), ENUM(UV_SMOOTH_PRED), + ENUM(UV_SMOOTH_V_PRED), ENUM(UV_SMOOTH_H_PRED), + ENUM(UV_PAETH_PRED), ENUM(UV_CFL_PRED), + ENUM(UV_MODE_INVALID), LAST_ENUM +}; +#define NO_SKIP 0 +#define SKIP 1 + +const map_entry skip_map[] = { ENUM(SKIP), ENUM(NO_SKIP), LAST_ENUM }; + +const map_entry config_map[] = { ENUM(MI_SIZE), LAST_ENUM }; + +static const char *exec_name; + +insp_frame_data frame_data; +int frame_count = 0; +int decoded_frame_count = 0; +aom_codec_ctx_t codec; +AvxVideoReader *reader = NULL; +const AvxVideoInfo *info = NULL; +aom_image_t *img = NULL; + +void on_frame_decoded_dump(char *json) { +#ifdef __EMSCRIPTEN__ + EM_ASM_({ Module.on_frame_decoded_json($0); }, json); +#else + printf("%s", json); +#endif +} + +// Writing out the JSON buffer using snprintf is very slow, especially when +// compiled with emscripten, these functions speed things up quite a bit. +int put_str(char *buffer, const char *str) { + int i; + for (i = 0; str[i] != '\0'; i++) { + buffer[i] = str[i]; + } + return i; +} + +int put_str_with_escape(char *buffer, const char *str) { + int i; + int j = 0; + for (i = 0; str[i] != '\0'; i++) { + if (str[i] < ' ') { + continue; + } else if (str[i] == '"' || str[i] == '\\') { + buffer[j++] = '\\'; + } + buffer[j++] = str[i]; + } + return j; +} + +int put_num(char *buffer, char prefix, int num, char suffix) { + int i = 0; + char *buf = buffer; + int is_neg = 0; + if (prefix) { + buf[i++] = prefix; + } + if (num == 0) { + buf[i++] = '0'; + } else { + if (num < 0) { + num = -num; + is_neg = 1; + } + int s = i; + while (num != 0) { + buf[i++] = '0' + (num % 10); + num = num / 10; + } + if (is_neg) { + buf[i++] = '-'; + } + int e = i - 1; + while (s < e) { + int t = buf[s]; + buf[s] = buf[e]; + buf[e] = t; + s++; + e--; + } + } + if (suffix) { + buf[i++] = suffix; + } + return i; +} + +int put_map(char *buffer, const map_entry *map) { + char *buf = buffer; + const map_entry *entry = map; + while (entry->name != NULL) { + *(buf++) = '"'; + buf += put_str(buf, entry->name); + *(buf++) = '"'; + buf += put_num(buf, ':', entry->value, 0); + entry++; + if (entry->name != NULL) { + *(buf++) = ','; + } + } + return (int)(buf - buffer); +} + +int put_reference_frame(char *buffer) { + const int mi_rows = frame_data.mi_rows; + const int mi_cols = frame_data.mi_cols; + char *buf = buffer; + int r, c, t; + buf += put_str(buf, " \"referenceFrameMap\": {"); + buf += put_map(buf, refs_map); + buf += put_str(buf, "},\n"); + buf += put_str(buf, " \"referenceFrame\": ["); + for (r = 0; r < mi_rows; ++r) { + *(buf++) = '['; + for (c = 0; c < mi_cols; ++c) { + insp_mi_data *mi = &frame_data.mi_grid[r * mi_cols + c]; + buf += put_num(buf, '[', mi->ref_frame[0], 0); + buf += put_num(buf, ',', mi->ref_frame[1], ']'); + if (compress) { // RLE + for (t = c + 1; t < mi_cols; ++t) { + insp_mi_data *next_mi = &frame_data.mi_grid[r * mi_cols + t]; + if (mi->ref_frame[0] != next_mi->ref_frame[0] || + mi->ref_frame[1] != next_mi->ref_frame[1]) { + break; + } + } + if (t - c > 1) { + *(buf++) = ','; + buf += put_num(buf, '[', t - c - 1, ']'); + c = t - 1; + } + } + if (c < mi_cols - 1) *(buf++) = ','; + } + *(buf++) = ']'; + if (r < mi_rows - 1) *(buf++) = ','; + } + buf += put_str(buf, "],\n"); + return (int)(buf - buffer); +} + +int put_motion_vectors(char *buffer) { + const int mi_rows = frame_data.mi_rows; + const int mi_cols = frame_data.mi_cols; + char *buf = buffer; + int r, c, t; + buf += put_str(buf, " \"motionVectors\": ["); + for (r = 0; r < mi_rows; ++r) { + *(buf++) = '['; + for (c = 0; c < mi_cols; ++c) { + insp_mi_data *mi = &frame_data.mi_grid[r * mi_cols + c]; + buf += put_num(buf, '[', mi->mv[0].col, 0); + buf += put_num(buf, ',', mi->mv[0].row, 0); + buf += put_num(buf, ',', mi->mv[1].col, 0); + buf += put_num(buf, ',', mi->mv[1].row, ']'); + if (compress) { // RLE + for (t = c + 1; t < mi_cols; ++t) { + insp_mi_data *next_mi = &frame_data.mi_grid[r * mi_cols + t]; + if (mi->mv[0].col != next_mi->mv[0].col || + mi->mv[0].row != next_mi->mv[0].row || + mi->mv[1].col != next_mi->mv[1].col || + mi->mv[1].row != next_mi->mv[1].row) { + break; + } + } + if (t - c > 1) { + *(buf++) = ','; + buf += put_num(buf, '[', t - c - 1, ']'); + c = t - 1; + } + } + if (c < mi_cols - 1) *(buf++) = ','; + } + *(buf++) = ']'; + if (r < mi_rows - 1) *(buf++) = ','; + } + buf += put_str(buf, "],\n"); + return (int)(buf - buffer); +} + +int put_block_info(char *buffer, const map_entry *map, const char *name, + size_t offset, int len) { + const int mi_rows = frame_data.mi_rows; + const int mi_cols = frame_data.mi_cols; + char *buf = buffer; + int r, c, t, i; + if (compress && len == 1) { + die("Can't encode scalars as arrays when RLE compression is enabled."); + return -1; + } + if (map) { + buf += snprintf(buf, MAX_BUFFER, " \"%sMap\": {", name); + buf += put_map(buf, map); + buf += put_str(buf, "},\n"); + } + buf += snprintf(buf, MAX_BUFFER, " \"%s\": [", name); + for (r = 0; r < mi_rows; ++r) { + *(buf++) = '['; + for (c = 0; c < mi_cols; ++c) { + insp_mi_data *mi = &frame_data.mi_grid[r * mi_cols + c]; + int16_t *v = (int16_t *)(((int8_t *)mi) + offset); + if (len == 0) { + buf += put_num(buf, 0, v[0], 0); + } else { + buf += put_str(buf, "["); + for (i = 0; i < len; i++) { + buf += put_num(buf, 0, v[i], 0); + if (i < len - 1) { + buf += put_str(buf, ","); + } + } + buf += put_str(buf, "]"); + } + if (compress) { // RLE + for (t = c + 1; t < mi_cols; ++t) { + insp_mi_data *next_mi = &frame_data.mi_grid[r * mi_cols + t]; + int16_t *nv = (int16_t *)(((int8_t *)next_mi) + offset); + int same = 0; + if (len == 0) { + same = v[0] == nv[0]; + } else { + for (i = 0; i < len; i++) { + same = v[i] == nv[i]; + if (!same) { + break; + } + } + } + if (!same) { + break; + } + } + if (t - c > 1) { + *(buf++) = ','; + buf += put_num(buf, '[', t - c - 1, ']'); + c = t - 1; + } + } + if (c < mi_cols - 1) *(buf++) = ','; + } + *(buf++) = ']'; + if (r < mi_rows - 1) *(buf++) = ','; + } + buf += put_str(buf, "],\n"); + return (int)(buf - buffer); +} + +#if CONFIG_ACCOUNTING +int put_accounting(char *buffer) { + char *buf = buffer; + int i; + const Accounting *accounting = frame_data.accounting; + if (accounting == NULL) { + printf("XXX\n"); + return 0; + } + const int num_syms = accounting->syms.num_syms; + const int num_strs = accounting->syms.dictionary.num_strs; + buf += put_str(buf, " \"symbolsMap\": ["); + for (i = 0; i < num_strs; i++) { + buf += snprintf(buf, MAX_BUFFER, "\"%s\"", + accounting->syms.dictionary.strs[i]); + if (i < num_strs - 1) *(buf++) = ','; + } + buf += put_str(buf, "],\n"); + buf += put_str(buf, " \"symbols\": [\n "); + AccountingSymbolContext context; + context.x = -2; + context.y = -2; + AccountingSymbol *sym; + for (i = 0; i < num_syms; i++) { + sym = &accounting->syms.syms[i]; + if (memcmp(&context, &sym->context, sizeof(AccountingSymbolContext)) != 0) { + buf += put_num(buf, '[', sym->context.x, 0); + buf += put_num(buf, ',', sym->context.y, ']'); + } else { + buf += put_num(buf, '[', sym->id, 0); + buf += put_num(buf, ',', sym->bits, 0); + buf += put_num(buf, ',', sym->samples, ']'); + } + context = sym->context; + if (i < num_syms - 1) *(buf++) = ','; + } + buf += put_str(buf, "],\n"); + return (int)(buf - buffer); +} +#endif + +void inspect(void *pbi, void *data) { + /* Fetch frame data. */ + ifd_inspect(&frame_data, pbi); + (void)data; + // We allocate enough space and hope we don't write out of bounds. Totally + // unsafe but this speeds things up, especially when compiled to Javascript. + char *buffer = aom_malloc(MAX_BUFFER); + char *buf = buffer; + buf += put_str(buf, "{\n"); + if (layers & BLOCK_SIZE_LAYER) { + buf += put_block_info(buf, block_size_map, "blockSize", + offsetof(insp_mi_data, sb_type), 0); + } + if (layers & TRANSFORM_SIZE_LAYER) { + buf += put_block_info(buf, tx_size_map, "transformSize", + offsetof(insp_mi_data, tx_size), 0); + } + if (layers & TRANSFORM_TYPE_LAYER) { + buf += put_block_info(buf, tx_type_map, "transformType", + offsetof(insp_mi_data, tx_type), 0); + } + if (layers & DUAL_FILTER_LAYER) { + buf += put_block_info(buf, dual_filter_map, "dualFilterType", + offsetof(insp_mi_data, dual_filter_type), 0); + } + if (layers & MODE_LAYER) { + buf += put_block_info(buf, prediction_mode_map, "mode", + offsetof(insp_mi_data, mode), 0); + } + if (layers & UV_MODE_LAYER) { + buf += put_block_info(buf, uv_prediction_mode_map, "uv_mode", + offsetof(insp_mi_data, uv_mode), 0); + } + if (layers & SKIP_LAYER) { + buf += + put_block_info(buf, skip_map, "skip", offsetof(insp_mi_data, skip), 0); + } + if (layers & FILTER_LAYER) { + buf += + put_block_info(buf, NULL, "filter", offsetof(insp_mi_data, filter), 2); + } + if (layers & CDEF_LAYER) { + buf += put_block_info(buf, NULL, "cdef_level", + offsetof(insp_mi_data, cdef_level), 0); + buf += put_block_info(buf, NULL, "cdef_strength", + offsetof(insp_mi_data, cdef_strength), 0); + } + if (layers & CFL_LAYER) { + buf += put_block_info(buf, NULL, "cfl_alpha_idx", + offsetof(insp_mi_data, cfl_alpha_idx), 0); + buf += put_block_info(buf, NULL, "cfl_alpha_sign", + offsetof(insp_mi_data, cfl_alpha_sign), 0); + } + if (layers & Q_INDEX_LAYER) { + buf += put_block_info(buf, NULL, "delta_q", + offsetof(insp_mi_data, current_qindex), 0); + } + if (layers & SEGMENT_ID_LAYER) { + buf += put_block_info(buf, NULL, "seg_id", + offsetof(insp_mi_data, segment_id), 0); + } + if (layers & MOTION_VECTORS_LAYER) { + buf += put_motion_vectors(buf); + } + if (layers & REFERENCE_FRAME_LAYER) { + buf += put_block_info(buf, refs_map, "referenceFrame", + offsetof(insp_mi_data, ref_frame), 2); + } +#if CONFIG_ACCOUNTING + if (layers & ACCOUNTING_LAYER) { + buf += put_accounting(buf); + } +#endif + buf += snprintf(buf, MAX_BUFFER, " \"frame\": %d,\n", decoded_frame_count); + buf += snprintf(buf, MAX_BUFFER, " \"showFrame\": %d,\n", + frame_data.show_frame); + buf += snprintf(buf, MAX_BUFFER, " \"frameType\": %d,\n", + frame_data.frame_type); + buf += snprintf(buf, MAX_BUFFER, " \"baseQIndex\": %d,\n", + frame_data.base_qindex); + buf += snprintf(buf, MAX_BUFFER, " \"tileCols\": %d,\n", + frame_data.tile_mi_cols); + buf += snprintf(buf, MAX_BUFFER, " \"tileRows\": %d,\n", + frame_data.tile_mi_rows); + buf += snprintf(buf, MAX_BUFFER, " \"deltaQPresentFlag\": %d,\n", + frame_data.delta_q_present_flag); + buf += snprintf(buf, MAX_BUFFER, " \"deltaQRes\": %d,\n", + frame_data.delta_q_res); + buf += put_str(buf, " \"config\": {"); + buf += put_map(buf, config_map); + buf += put_str(buf, "},\n"); + buf += put_str(buf, " \"configString\": \""); + buf += put_str_with_escape(buf, aom_codec_build_config()); + buf += put_str(buf, "\"\n"); + decoded_frame_count++; + buf += put_str(buf, "},\n"); + *(buf++) = 0; + on_frame_decoded_dump(buffer); + aom_free(buffer); +} + +void ifd_init_cb() { + aom_inspect_init ii; + ii.inspect_cb = inspect; + ii.inspect_ctx = NULL; + aom_codec_control(&codec, AV1_SET_INSPECTION_CALLBACK, &ii); +} + +EMSCRIPTEN_KEEPALIVE +int open_file(char *file) { + if (file == NULL) { + // The JS analyzer puts the .ivf file at this location. + 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); + const AvxInterface *decoder = get_aom_decoder_by_fourcc(info->codec_fourcc); + if (!decoder) die("Unknown input codec."); + fprintf(stderr, "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."); + ifd_init(&frame_data, info->frame_width, info->frame_height); + ifd_init_cb(); + return EXIT_SUCCESS; +} + +EMSCRIPTEN_KEEPALIVE +int read_frame() { + if (!aom_video_reader_read_frame(reader)) return EXIT_FAILURE; + img = NULL; + aom_codec_iter_t iter = NULL; + size_t frame_size = 0; + const unsigned char *frame = aom_video_reader_get_frame(reader, &frame_size); + if (aom_codec_decode(&codec, frame, (unsigned int)frame_size, NULL) != + AOM_CODEC_OK) { + die_codec(&codec, "Failed to decode frame."); + } + int got_any_frames = 0; + aom_image_t *frame_img; + while ((frame_img = aom_codec_get_frame(&codec, &iter))) { + img = frame_img; + ++frame_count; + got_any_frames = 1; + } + if (!got_any_frames) { + return EXIT_FAILURE; + } + return EXIT_SUCCESS; +} + +EMSCRIPTEN_KEEPALIVE +const char *get_aom_codec_build_config() { return aom_codec_build_config(); } + +EMSCRIPTEN_KEEPALIVE +int get_bit_depth() { return img->bit_depth; } + +EMSCRIPTEN_KEEPALIVE +int get_bits_per_sample() { return img->bps; } + +EMSCRIPTEN_KEEPALIVE +int get_image_format() { return img->fmt; } + +EMSCRIPTEN_KEEPALIVE +unsigned char *get_plane(int plane) { return img->planes[plane]; } + +EMSCRIPTEN_KEEPALIVE +int get_plane_stride(int plane) { return img->stride[plane]; } + +EMSCRIPTEN_KEEPALIVE +int get_plane_width(int plane) { return aom_img_plane_width(img, plane); } + +EMSCRIPTEN_KEEPALIVE +int get_plane_height(int plane) { return aom_img_plane_height(img, plane); } + +EMSCRIPTEN_KEEPALIVE +int get_frame_width() { return info->frame_width; } + +EMSCRIPTEN_KEEPALIVE +int get_frame_height() { return info->frame_height; } + +static void parse_args(char **argv) { + char **argi, **argj; + struct arg arg; + (void)dump_accounting_arg; + (void)dump_cdef_arg; + for (argi = argj = argv; (*argj = *argi); argi += arg.argv_step) { + arg.argv_step = 1; + if (arg_match(&arg, &dump_block_size_arg, argi)) layers |= BLOCK_SIZE_LAYER; +#if CONFIG_ACCOUNTING + else if (arg_match(&arg, &dump_accounting_arg, argi)) + layers |= ACCOUNTING_LAYER; +#endif + else if (arg_match(&arg, &dump_transform_size_arg, argi)) + layers |= TRANSFORM_SIZE_LAYER; + else if (arg_match(&arg, &dump_transform_type_arg, argi)) + layers |= TRANSFORM_TYPE_LAYER; + else if (arg_match(&arg, &dump_mode_arg, argi)) + layers |= MODE_LAYER; + else if (arg_match(&arg, &dump_uv_mode_arg, argi)) + layers |= UV_MODE_LAYER; + else if (arg_match(&arg, &dump_skip_arg, argi)) + layers |= SKIP_LAYER; + else if (arg_match(&arg, &dump_filter_arg, argi)) + layers |= FILTER_LAYER; + else if (arg_match(&arg, &dump_cdef_arg, argi)) + layers |= CDEF_LAYER; + else if (arg_match(&arg, &dump_cfl_arg, argi)) + layers |= CFL_LAYER; + else if (arg_match(&arg, &dump_reference_frame_arg, argi)) + layers |= REFERENCE_FRAME_LAYER; + else if (arg_match(&arg, &dump_motion_vectors_arg, argi)) + layers |= MOTION_VECTORS_LAYER; + else if (arg_match(&arg, &dump_dual_filter_type_arg, argi)) + layers |= DUAL_FILTER_LAYER; + else if (arg_match(&arg, &dump_delta_q_arg, argi)) + layers |= Q_INDEX_LAYER; + else if (arg_match(&arg, &dump_seg_id_arg, argi)) + layers |= SEGMENT_ID_LAYER; + else if (arg_match(&arg, &dump_all_arg, argi)) + layers |= ALL_LAYERS; + else if (arg_match(&arg, &compress_arg, argi)) + compress = 1; + else if (arg_match(&arg, &usage_arg, argi)) + usage_exit(); + else if (arg_match(&arg, &limit_arg, argi)) + stop_after = arg_parse_uint(&arg); + else + argj++; + } +} + +static const char *exec_name; + +void usage_exit(void) { + fprintf(stderr, "Usage: %s src_filename <options>\n", exec_name); + fprintf(stderr, "\nOptions:\n"); + arg_show_usage(stderr, main_args); + exit(EXIT_FAILURE); +} + +EMSCRIPTEN_KEEPALIVE +int main(int argc, char **argv) { + exec_name = argv[0]; + parse_args(argv); + if (argc >= 2) { + open_file(argv[1]); + printf("[\n"); + while (1) { + if (stop_after && (decoded_frame_count >= stop_after)) break; + if (read_frame()) break; + } + printf("null\n"); + printf("]"); + } else { + usage_exit(); + } +} + +EMSCRIPTEN_KEEPALIVE +void quit() { + if (aom_codec_destroy(&codec)) die_codec(&codec, "Failed to destroy codec"); + aom_video_reader_close(reader); +} + +EMSCRIPTEN_KEEPALIVE +void set_layers(LayerType v) { layers = v; } + +EMSCRIPTEN_KEEPALIVE +void set_compress(int v) { compress = v; } |