ref: cea4167030638e998c8b374df6700e869e5455d8
parent: b2904e2428e8c9978bb78f922050fca64dbfb581
author: Tom Finegan <tomfinegan@google.com>
date: Fri May 9 07:11:56 EDT 2014
Rename vp9_spatial_scalable_encoder. Rename it to vp9_spatial_svc_encoder. Change-Id: I756936039df5bf6bea2d7525a7edeac01df94352
--- a/examples.mk
+++ b/examples.mk
@@ -67,15 +67,15 @@
endif
vpxenc.GUID = 548DEC74-7A15-4B2B-AFC3-AA102E7C25C1
vpxenc.DESCRIPTION = Full featured encoder
-EXAMPLES-$(CONFIG_VP9_ENCODER) += vp9_spatial_scalable_encoder.c
-vp9_spatial_scalable_encoder.SRCS += args.c args.h
-vp9_spatial_scalable_encoder.SRCS += ivfenc.c ivfenc.h
-vp9_spatial_scalable_encoder.SRCS += tools_common.c tools_common.h
-vp9_spatial_scalable_encoder.SRCS += video_common.h
-vp9_spatial_scalable_encoder.SRCS += video_writer.h video_writer.c
-vp9_spatial_scalable_encoder.SRCS += vpxstats.c vpxstats.h
-vp9_spatial_scalable_encoder.GUID = 4A38598D-627D-4505-9C7B-D4020C84100D
-vp9_spatial_scalable_encoder.DESCRIPTION = Spatial Scalable Encoder
+EXAMPLES-$(CONFIG_VP9_ENCODER) += vp9_spatial_svc_encoder.c
+vp9_spatial_svc_encoder.SRCS += args.c args.h
+vp9_spatial_svc_encoder.SRCS += ivfenc.c ivfenc.h
+vp9_spatial_svc_encoder.SRCS += tools_common.c tools_common.h
+vp9_spatial_svc_encoder.SRCS += video_common.h
+vp9_spatial_svc_encoder.SRCS += video_writer.h video_writer.c
+vp9_spatial_svc_encoder.SRCS += vpxstats.c vpxstats.h
+vp9_spatial_svc_encoder.GUID = 4A38598D-627D-4505-9C7B-D4020C84100D
+vp9_spatial_svc_encoder.DESCRIPTION = VP9 Spatial SVC Encoder
ifneq ($(CONFIG_SHARED),yes)
EXAMPLES-$(CONFIG_VP9_ENCODER) += resize_util.c
--- a/examples/vp9_spatial_scalable_encoder.c
+++ /dev/null
@@ -1,391 +1,0 @@
-/*
- * Copyright (c) 2012 The WebM project authors. All Rights Reserved.
- *
- * Use of this source code is governed by a BSD-style license
- * that can be found in the LICENSE file in the root of the source
- * tree. An additional intellectual property rights grant can be found
- * in the file PATENTS. All contributing project authors may
- * be found in the AUTHORS file in the root of the source tree.
- */
-
-/*
- * This is an example demonstrating how to implement a multi-layer
- * VP9 encoding scheme based on spatial scalability for video applications
- * that benefit from a scalable bitstream.
- */
-
-#include <stdarg.h>
-#include <stdlib.h>
-#include <string.h>
-#include <time.h>
-
-#include "./args.h"
-#include "./tools_common.h"
-#include "./video_writer.h"
-
-#include "vpx/svc_context.h"
-#include "vpx/vp8cx.h"
-#include "vpx/vpx_encoder.h"
-#include "./vpxstats.h"
-
-static const struct arg_enum_list encoding_mode_enum[] = {- {"i", INTER_LAYER_PREDICTION_I},- {"alt-ip", ALT_INTER_LAYER_PREDICTION_IP},- {"ip", INTER_LAYER_PREDICTION_IP},- {"gf", USE_GOLDEN_FRAME},- {NULL, 0}-};
-
-static const arg_def_t encoding_mode_arg = ARG_DEF_ENUM(
- "m", "encoding-mode", 1, "Encoding mode algorithm", encoding_mode_enum);
-static const arg_def_t skip_frames_arg =
- ARG_DEF("s", "skip-frames", 1, "input frames to skip");-static const arg_def_t frames_arg =
- ARG_DEF("f", "frames", 1, "number of frames to encode");-static const arg_def_t width_arg = ARG_DEF("w", "width", 1, "source width");-static const arg_def_t height_arg = ARG_DEF("h", "height", 1, "source height");-static const arg_def_t timebase_arg =
- ARG_DEF("t", "timebase", 1, "timebase (num/den)");-static const arg_def_t bitrate_arg = ARG_DEF(
- "b", "target-bitrate", 1, "encoding bitrate, in kilobits per second");
-static const arg_def_t layers_arg =
- ARG_DEF("l", "layers", 1, "number of SVC layers");-static const arg_def_t kf_dist_arg =
- ARG_DEF("k", "kf-dist", 1, "number of frames between keyframes");-static const arg_def_t scale_factors_arg =
- ARG_DEF("r", "scale-factors", 1, "scale factors (lowest to highest layer)");-static const arg_def_t quantizers_arg =
- ARG_DEF("q", "quantizers", 1, "quantizers for non key frames, also will "- "be applied to key frames if -qn is not specified (lowest to "
- "highest layer)");
-static const arg_def_t quantizers_keyframe_arg =
- ARG_DEF("qn", "quantizers-keyframe", 1, "quantizers for key frames (lowest "- "to highest layer)");
-static const arg_def_t passes_arg =
- ARG_DEF("p", "passes", 1, "Number of passes (1/2)");-static const arg_def_t pass_arg =
- ARG_DEF(NULL, "pass", 1, "Pass to execute (1/2)");
-static const arg_def_t fpf_name_arg =
- ARG_DEF(NULL, "fpf", 1, "First pass statistics file name");
-static const arg_def_t min_q_arg =
- ARG_DEF(NULL, "min-q", 1, "Minimum quantizer");
-static const arg_def_t max_q_arg =
- ARG_DEF(NULL, "max-q", 1, "Maximum quantizer");
-static const arg_def_t min_bitrate_arg =
- ARG_DEF(NULL, "min-bitrate", 1, "Minimum bitrate");
-static const arg_def_t max_bitrate_arg =
- ARG_DEF(NULL, "max-bitrate", 1, "Maximum bitrate");
-
-static const arg_def_t *svc_args[] = {- &encoding_mode_arg, &frames_arg, &width_arg, &height_arg,
- &timebase_arg, &bitrate_arg, &skip_frames_arg, &layers_arg,
- &kf_dist_arg, &scale_factors_arg, &quantizers_arg,
- &quantizers_keyframe_arg, &passes_arg, &pass_arg,
- &fpf_name_arg, &min_q_arg, &max_q_arg, &min_bitrate_arg,
- &max_bitrate_arg, NULL
-};
-
-static const SVC_ENCODING_MODE default_encoding_mode =
- INTER_LAYER_PREDICTION_IP;
-static const uint32_t default_frames_to_skip = 0;
-static const uint32_t default_frames_to_code = 60 * 60;
-static const uint32_t default_width = 1920;
-static const uint32_t default_height = 1080;
-static const uint32_t default_timebase_num = 1;
-static const uint32_t default_timebase_den = 60;
-static const uint32_t default_bitrate = 1000;
-static const uint32_t default_spatial_layers = 5;
-static const uint32_t default_kf_dist = 100;
-
-typedef struct {- const char *input_filename;
- const char *output_filename;
- uint32_t frames_to_code;
- uint32_t frames_to_skip;
- struct VpxInputContext input_ctx;
- stats_io_t rc_stats;
- int passes;
- int pass;
-} AppInput;
-
-static const char *exec_name;
-
-void usage_exit() {- fprintf(stderr, "Usage: %s <options> input_filename output_filename\n",
- exec_name);
- fprintf(stderr, "Options:\n");
- arg_show_usage(stderr, svc_args);
- exit(EXIT_FAILURE);
-}
-
-static void parse_command_line(int argc, const char **argv_,
- AppInput *app_input, SvcContext *svc_ctx,
- vpx_codec_enc_cfg_t *enc_cfg) {- struct arg arg = {0};- char **argv = NULL;
- char **argi = NULL;
- char **argj = NULL;
- vpx_codec_err_t res;
- int passes = 0;
- int pass = 0;
- const char *fpf_file_name = NULL;
- unsigned int min_bitrate = 0;
- unsigned int max_bitrate = 0;
-
- // initialize SvcContext with parameters that will be passed to vpx_svc_init
- svc_ctx->log_level = SVC_LOG_DEBUG;
- svc_ctx->spatial_layers = default_spatial_layers;
- svc_ctx->encoding_mode = default_encoding_mode;
-
- // start with default encoder configuration
- res = vpx_codec_enc_config_default(vpx_codec_vp9_cx(), enc_cfg, 0);
- if (res) {- die("Failed to get config: %s\n", vpx_codec_err_to_string(res));- }
- // update enc_cfg with app default values
- enc_cfg->g_w = default_width;
- enc_cfg->g_h = default_height;
- enc_cfg->g_timebase.num = default_timebase_num;
- enc_cfg->g_timebase.den = default_timebase_den;
- enc_cfg->rc_target_bitrate = default_bitrate;
- enc_cfg->kf_min_dist = default_kf_dist;
- enc_cfg->kf_max_dist = default_kf_dist;
-
- // initialize AppInput with default values
- app_input->frames_to_code = default_frames_to_code;
- app_input->frames_to_skip = default_frames_to_skip;
-
- // process command line options
- argv = argv_dup(argc - 1, argv_ + 1);
- for (argi = argj = argv; (*argj = *argi); argi += arg.argv_step) {- arg.argv_step = 1;
-
- if (arg_match(&arg, &encoding_mode_arg, argi)) {- svc_ctx->encoding_mode = arg_parse_enum_or_int(&arg);
- } else if (arg_match(&arg, &frames_arg, argi)) {- app_input->frames_to_code = arg_parse_uint(&arg);
- } else if (arg_match(&arg, &width_arg, argi)) {- enc_cfg->g_w = arg_parse_uint(&arg);
- } else if (arg_match(&arg, &height_arg, argi)) {- enc_cfg->g_h = arg_parse_uint(&arg);
- } else if (arg_match(&arg, &timebase_arg, argi)) {- enc_cfg->g_timebase = arg_parse_rational(&arg);
- } else if (arg_match(&arg, &bitrate_arg, argi)) {- enc_cfg->rc_target_bitrate = arg_parse_uint(&arg);
- } else if (arg_match(&arg, &skip_frames_arg, argi)) {- app_input->frames_to_skip = arg_parse_uint(&arg);
- } else if (arg_match(&arg, &layers_arg, argi)) {- svc_ctx->spatial_layers = arg_parse_uint(&arg);
- } else if (arg_match(&arg, &kf_dist_arg, argi)) {- enc_cfg->kf_min_dist = arg_parse_uint(&arg);
- enc_cfg->kf_max_dist = enc_cfg->kf_min_dist;
- } else if (arg_match(&arg, &scale_factors_arg, argi)) {- vpx_svc_set_scale_factors(svc_ctx, arg.val);
- } else if (arg_match(&arg, &quantizers_arg, argi)) {- vpx_svc_set_quantizers(svc_ctx, arg.val, 0);
- } else if (arg_match(&arg, &quantizers_keyframe_arg, argi)) {- vpx_svc_set_quantizers(svc_ctx, arg.val, 1);
- } else if (arg_match(&arg, &passes_arg, argi)) {- passes = arg_parse_uint(&arg);
- if (passes < 1 || passes > 2) {- die("Error: Invalid number of passes (%d)\n", passes);- }
- } else if (arg_match(&arg, &pass_arg, argi)) {- pass = arg_parse_uint(&arg);
- if (pass < 1 || pass > 2) {- die("Error: Invalid pass selected (%d)\n", pass);- }
- } else if (arg_match(&arg, &fpf_name_arg, argi)) {- fpf_file_name = arg.val;
- } else if (arg_match(&arg, &min_q_arg, argi)) {- enc_cfg->rc_min_quantizer = arg_parse_uint(&arg);
- } else if (arg_match(&arg, &max_q_arg, argi)) {- enc_cfg->rc_max_quantizer = arg_parse_uint(&arg);
- } else if (arg_match(&arg, &min_bitrate_arg, argi)) {- min_bitrate = arg_parse_uint(&arg);
- } else if (arg_match(&arg, &max_bitrate_arg, argi)) {- max_bitrate = arg_parse_uint(&arg);
- } else {- ++argj;
- }
- }
-
- if (passes == 0 || passes == 1) {- if (pass) {- fprintf(stderr, "pass is ignored since there's only one pass\n");
- }
- enc_cfg->g_pass = VPX_RC_ONE_PASS;
- } else {- if (pass == 0) {- die("pass must be specified when passes is 2\n");- }
-
- if (fpf_file_name == NULL) {- die("fpf must be specified when passes is 2\n");- }
-
- if (pass == 1) {- enc_cfg->g_pass = VPX_RC_FIRST_PASS;
- if (!stats_open_file(&app_input->rc_stats, fpf_file_name, 0)) {- fatal("Failed to open statistics store");- }
- } else {- enc_cfg->g_pass = VPX_RC_LAST_PASS;
- if (!stats_open_file(&app_input->rc_stats, fpf_file_name, 1)) {- fatal("Failed to open statistics store");- }
- enc_cfg->rc_twopass_stats_in = stats_get(&app_input->rc_stats);
- }
- app_input->passes = passes;
- app_input->pass = pass;
- }
-
- if (enc_cfg->rc_target_bitrate > 0) {- if (min_bitrate > 0) {- enc_cfg->rc_2pass_vbr_minsection_pct =
- min_bitrate * 100 / enc_cfg->rc_target_bitrate;
- }
- if (max_bitrate > 0) {- enc_cfg->rc_2pass_vbr_maxsection_pct =
- max_bitrate * 100 / enc_cfg->rc_target_bitrate;
- }
- }
-
- // Check for unrecognized options
- for (argi = argv; *argi; ++argi)
- if (argi[0][0] == '-' && strlen(argi[0]) > 1)
- die("Error: Unrecognized option %s\n", *argi);-
- if (argv[0] == NULL || argv[1] == 0) {- usage_exit();
- }
- app_input->input_filename = argv[0];
- app_input->output_filename = argv[1];
- free(argv);
-
- if (enc_cfg->g_w < 16 || enc_cfg->g_w % 2 || enc_cfg->g_h < 16 ||
- enc_cfg->g_h % 2)
- die("Invalid resolution: %d x %d\n", enc_cfg->g_w, enc_cfg->g_h);-
- printf(
- "Codec %s\nframes: %d, skip: %d\n"
- "mode: %d, layers: %d\n"
- "width %d, height: %d,\n"
- "num: %d, den: %d, bitrate: %d,\n"
- "gop size: %d\n",
- vpx_codec_iface_name(vpx_codec_vp9_cx()), app_input->frames_to_code,
- app_input->frames_to_skip, svc_ctx->encoding_mode,
- svc_ctx->spatial_layers, enc_cfg->g_w, enc_cfg->g_h,
- enc_cfg->g_timebase.num, enc_cfg->g_timebase.den,
- enc_cfg->rc_target_bitrate, enc_cfg->kf_max_dist);
-}
-
-int main(int argc, const char **argv) {- AppInput app_input = {0};- VpxVideoWriter *writer = NULL;
- VpxVideoInfo info = {0};- vpx_codec_ctx_t codec;
- vpx_codec_enc_cfg_t enc_cfg;
- SvcContext svc_ctx;
- uint32_t i;
- uint32_t frame_cnt = 0;
- vpx_image_t raw;
- vpx_codec_err_t res;
- int pts = 0; /* PTS starts at 0 */
- int frame_duration = 1; /* 1 timebase tick per frame */
- FILE *infile = NULL;
- int end_of_stream = 0;
-
- memset(&svc_ctx, 0, sizeof(svc_ctx));
- svc_ctx.log_print = 1;
- exec_name = argv[0];
- parse_command_line(argc, argv, &app_input, &svc_ctx, &enc_cfg);
-
- // Allocate image buffer
- if (!vpx_img_alloc(&raw, VPX_IMG_FMT_I420, enc_cfg.g_w, enc_cfg.g_h, 32))
- die("Failed to allocate image %dx%d\n", enc_cfg.g_w, enc_cfg.g_h);-
- if (!(infile = fopen(app_input.input_filename, "rb")))
- die("Failed to open %s for reading\n", app_input.input_filename);-
- // Initialize codec
- if (vpx_svc_init(&svc_ctx, &codec, vpx_codec_vp9_cx(), &enc_cfg) !=
- VPX_CODEC_OK)
- die("Failed to initialize encoder\n");-
- info.codec_fourcc = VP9_FOURCC;
- info.time_base.numerator = enc_cfg.g_timebase.num;
- info.time_base.denominator = enc_cfg.g_timebase.den;
- if (vpx_svc_get_layer_resolution(&svc_ctx, svc_ctx.spatial_layers - 1,
- (unsigned int *)&info.frame_width,
- (unsigned int *)&info.frame_height) !=
- VPX_CODEC_OK) {- die("Failed to get output resolution");- }
-
- if (!(app_input.passes == 2 && app_input.pass == 1)) {- // We don't save the bitstream for the 1st pass on two pass rate control
- writer = vpx_video_writer_open(app_input.output_filename, kContainerIVF,
- &info);
- if (!writer)
- die("Failed to open %s for writing\n", app_input.output_filename);- }
-
- // skip initial frames
- for (i = 0; i < app_input.frames_to_skip; ++i)
- vpx_img_read(&raw, infile);
-
- // Encode frames
- while (!end_of_stream) {- if (frame_cnt >= app_input.frames_to_code || !vpx_img_read(&raw, infile)) {- // We need one extra vpx_svc_encode call at end of stream to flush
- // encoder and get remaining data
- end_of_stream = 1;
- }
-
- res = vpx_svc_encode(&svc_ctx, &codec, (end_of_stream ? NULL : &raw),
- pts, frame_duration, VPX_DL_GOOD_QUALITY);
- printf("%s", vpx_svc_get_message(&svc_ctx));- if (res != VPX_CODEC_OK) {- die_codec(&codec, "Failed to encode frame");
- }
- if (!(app_input.passes == 2 && app_input.pass == 1)) {- if (vpx_svc_get_frame_size(&svc_ctx) > 0) {- vpx_video_writer_write_frame(writer,
- vpx_svc_get_buffer(&svc_ctx),
- vpx_svc_get_frame_size(&svc_ctx),
- pts);
- }
- }
- if (vpx_svc_get_rc_stats_buffer_size(&svc_ctx) > 0) {- stats_write(&app_input.rc_stats,
- vpx_svc_get_rc_stats_buffer(&svc_ctx),
- vpx_svc_get_rc_stats_buffer_size(&svc_ctx));
- }
- if (!end_of_stream) {- ++frame_cnt;
- pts += frame_duration;
- }
- }
-
- printf("Processed %d frames\n", frame_cnt);-
- fclose(infile);
- if (vpx_codec_destroy(&codec)) die_codec(&codec, "Failed to destroy codec");
-
- if (app_input.passes == 2)
- stats_close(&app_input.rc_stats, 1);
-
- if (writer) {- vpx_video_writer_close(writer);
- }
-
- vpx_img_free(&raw);
-
- // display average size, psnr
- printf("%s", vpx_svc_dump_statistics(&svc_ctx));-
- vpx_svc_release(&svc_ctx);
-
- return EXIT_SUCCESS;
-}
--- /dev/null
+++ b/examples/vp9_spatial_svc_encoder.c
@@ -1,0 +1,391 @@
+/*
+ * Copyright (c) 2012 The WebM project authors. All Rights Reserved.
+ *
+ * Use of this source code is governed by a BSD-style license
+ * that can be found in the LICENSE file in the root of the source
+ * tree. An additional intellectual property rights grant can be found
+ * in the file PATENTS. All contributing project authors may
+ * be found in the AUTHORS file in the root of the source tree.
+ */
+
+/*
+ * This is an example demonstrating how to implement a multi-layer
+ * VP9 encoding scheme based on spatial scalability for video applications
+ * that benefit from a scalable bitstream.
+ */
+
+#include <stdarg.h>
+#include <stdlib.h>
+#include <string.h>
+#include <time.h>
+
+#include "./args.h"
+#include "./tools_common.h"
+#include "./video_writer.h"
+
+#include "vpx/svc_context.h"
+#include "vpx/vp8cx.h"
+#include "vpx/vpx_encoder.h"
+#include "./vpxstats.h"
+
+static const struct arg_enum_list encoding_mode_enum[] = {+ {"i", INTER_LAYER_PREDICTION_I},+ {"alt-ip", ALT_INTER_LAYER_PREDICTION_IP},+ {"ip", INTER_LAYER_PREDICTION_IP},+ {"gf", USE_GOLDEN_FRAME},+ {NULL, 0}+};
+
+static const arg_def_t encoding_mode_arg = ARG_DEF_ENUM(
+ "m", "encoding-mode", 1, "Encoding mode algorithm", encoding_mode_enum);
+static const arg_def_t skip_frames_arg =
+ ARG_DEF("s", "skip-frames", 1, "input frames to skip");+static const arg_def_t frames_arg =
+ ARG_DEF("f", "frames", 1, "number of frames to encode");+static const arg_def_t width_arg = ARG_DEF("w", "width", 1, "source width");+static const arg_def_t height_arg = ARG_DEF("h", "height", 1, "source height");+static const arg_def_t timebase_arg =
+ ARG_DEF("t", "timebase", 1, "timebase (num/den)");+static const arg_def_t bitrate_arg = ARG_DEF(
+ "b", "target-bitrate", 1, "encoding bitrate, in kilobits per second");
+static const arg_def_t layers_arg =
+ ARG_DEF("l", "layers", 1, "number of SVC layers");+static const arg_def_t kf_dist_arg =
+ ARG_DEF("k", "kf-dist", 1, "number of frames between keyframes");+static const arg_def_t scale_factors_arg =
+ ARG_DEF("r", "scale-factors", 1, "scale factors (lowest to highest layer)");+static const arg_def_t quantizers_arg =
+ ARG_DEF("q", "quantizers", 1, "quantizers for non key frames, also will "+ "be applied to key frames if -qn is not specified (lowest to "
+ "highest layer)");
+static const arg_def_t quantizers_keyframe_arg =
+ ARG_DEF("qn", "quantizers-keyframe", 1, "quantizers for key frames (lowest "+ "to highest layer)");
+static const arg_def_t passes_arg =
+ ARG_DEF("p", "passes", 1, "Number of passes (1/2)");+static const arg_def_t pass_arg =
+ ARG_DEF(NULL, "pass", 1, "Pass to execute (1/2)");
+static const arg_def_t fpf_name_arg =
+ ARG_DEF(NULL, "fpf", 1, "First pass statistics file name");
+static const arg_def_t min_q_arg =
+ ARG_DEF(NULL, "min-q", 1, "Minimum quantizer");
+static const arg_def_t max_q_arg =
+ ARG_DEF(NULL, "max-q", 1, "Maximum quantizer");
+static const arg_def_t min_bitrate_arg =
+ ARG_DEF(NULL, "min-bitrate", 1, "Minimum bitrate");
+static const arg_def_t max_bitrate_arg =
+ ARG_DEF(NULL, "max-bitrate", 1, "Maximum bitrate");
+
+static const arg_def_t *svc_args[] = {+ &encoding_mode_arg, &frames_arg, &width_arg, &height_arg,
+ &timebase_arg, &bitrate_arg, &skip_frames_arg, &layers_arg,
+ &kf_dist_arg, &scale_factors_arg, &quantizers_arg,
+ &quantizers_keyframe_arg, &passes_arg, &pass_arg,
+ &fpf_name_arg, &min_q_arg, &max_q_arg, &min_bitrate_arg,
+ &max_bitrate_arg, NULL
+};
+
+static const SVC_ENCODING_MODE default_encoding_mode =
+ INTER_LAYER_PREDICTION_IP;
+static const uint32_t default_frames_to_skip = 0;
+static const uint32_t default_frames_to_code = 60 * 60;
+static const uint32_t default_width = 1920;
+static const uint32_t default_height = 1080;
+static const uint32_t default_timebase_num = 1;
+static const uint32_t default_timebase_den = 60;
+static const uint32_t default_bitrate = 1000;
+static const uint32_t default_spatial_layers = 5;
+static const uint32_t default_kf_dist = 100;
+
+typedef struct {+ const char *input_filename;
+ const char *output_filename;
+ uint32_t frames_to_code;
+ uint32_t frames_to_skip;
+ struct VpxInputContext input_ctx;
+ stats_io_t rc_stats;
+ int passes;
+ int pass;
+} AppInput;
+
+static const char *exec_name;
+
+void usage_exit() {+ fprintf(stderr, "Usage: %s <options> input_filename output_filename\n",
+ exec_name);
+ fprintf(stderr, "Options:\n");
+ arg_show_usage(stderr, svc_args);
+ exit(EXIT_FAILURE);
+}
+
+static void parse_command_line(int argc, const char **argv_,
+ AppInput *app_input, SvcContext *svc_ctx,
+ vpx_codec_enc_cfg_t *enc_cfg) {+ struct arg arg = {0};+ char **argv = NULL;
+ char **argi = NULL;
+ char **argj = NULL;
+ vpx_codec_err_t res;
+ int passes = 0;
+ int pass = 0;
+ const char *fpf_file_name = NULL;
+ unsigned int min_bitrate = 0;
+ unsigned int max_bitrate = 0;
+
+ // initialize SvcContext with parameters that will be passed to vpx_svc_init
+ svc_ctx->log_level = SVC_LOG_DEBUG;
+ svc_ctx->spatial_layers = default_spatial_layers;
+ svc_ctx->encoding_mode = default_encoding_mode;
+
+ // start with default encoder configuration
+ res = vpx_codec_enc_config_default(vpx_codec_vp9_cx(), enc_cfg, 0);
+ if (res) {+ die("Failed to get config: %s\n", vpx_codec_err_to_string(res));+ }
+ // update enc_cfg with app default values
+ enc_cfg->g_w = default_width;
+ enc_cfg->g_h = default_height;
+ enc_cfg->g_timebase.num = default_timebase_num;
+ enc_cfg->g_timebase.den = default_timebase_den;
+ enc_cfg->rc_target_bitrate = default_bitrate;
+ enc_cfg->kf_min_dist = default_kf_dist;
+ enc_cfg->kf_max_dist = default_kf_dist;
+
+ // initialize AppInput with default values
+ app_input->frames_to_code = default_frames_to_code;
+ app_input->frames_to_skip = default_frames_to_skip;
+
+ // process command line options
+ argv = argv_dup(argc - 1, argv_ + 1);
+ for (argi = argj = argv; (*argj = *argi); argi += arg.argv_step) {+ arg.argv_step = 1;
+
+ if (arg_match(&arg, &encoding_mode_arg, argi)) {+ svc_ctx->encoding_mode = arg_parse_enum_or_int(&arg);
+ } else if (arg_match(&arg, &frames_arg, argi)) {+ app_input->frames_to_code = arg_parse_uint(&arg);
+ } else if (arg_match(&arg, &width_arg, argi)) {+ enc_cfg->g_w = arg_parse_uint(&arg);
+ } else if (arg_match(&arg, &height_arg, argi)) {+ enc_cfg->g_h = arg_parse_uint(&arg);
+ } else if (arg_match(&arg, &timebase_arg, argi)) {+ enc_cfg->g_timebase = arg_parse_rational(&arg);
+ } else if (arg_match(&arg, &bitrate_arg, argi)) {+ enc_cfg->rc_target_bitrate = arg_parse_uint(&arg);
+ } else if (arg_match(&arg, &skip_frames_arg, argi)) {+ app_input->frames_to_skip = arg_parse_uint(&arg);
+ } else if (arg_match(&arg, &layers_arg, argi)) {+ svc_ctx->spatial_layers = arg_parse_uint(&arg);
+ } else if (arg_match(&arg, &kf_dist_arg, argi)) {+ enc_cfg->kf_min_dist = arg_parse_uint(&arg);
+ enc_cfg->kf_max_dist = enc_cfg->kf_min_dist;
+ } else if (arg_match(&arg, &scale_factors_arg, argi)) {+ vpx_svc_set_scale_factors(svc_ctx, arg.val);
+ } else if (arg_match(&arg, &quantizers_arg, argi)) {+ vpx_svc_set_quantizers(svc_ctx, arg.val, 0);
+ } else if (arg_match(&arg, &quantizers_keyframe_arg, argi)) {+ vpx_svc_set_quantizers(svc_ctx, arg.val, 1);
+ } else if (arg_match(&arg, &passes_arg, argi)) {+ passes = arg_parse_uint(&arg);
+ if (passes < 1 || passes > 2) {+ die("Error: Invalid number of passes (%d)\n", passes);+ }
+ } else if (arg_match(&arg, &pass_arg, argi)) {+ pass = arg_parse_uint(&arg);
+ if (pass < 1 || pass > 2) {+ die("Error: Invalid pass selected (%d)\n", pass);+ }
+ } else if (arg_match(&arg, &fpf_name_arg, argi)) {+ fpf_file_name = arg.val;
+ } else if (arg_match(&arg, &min_q_arg, argi)) {+ enc_cfg->rc_min_quantizer = arg_parse_uint(&arg);
+ } else if (arg_match(&arg, &max_q_arg, argi)) {+ enc_cfg->rc_max_quantizer = arg_parse_uint(&arg);
+ } else if (arg_match(&arg, &min_bitrate_arg, argi)) {+ min_bitrate = arg_parse_uint(&arg);
+ } else if (arg_match(&arg, &max_bitrate_arg, argi)) {+ max_bitrate = arg_parse_uint(&arg);
+ } else {+ ++argj;
+ }
+ }
+
+ if (passes == 0 || passes == 1) {+ if (pass) {+ fprintf(stderr, "pass is ignored since there's only one pass\n");
+ }
+ enc_cfg->g_pass = VPX_RC_ONE_PASS;
+ } else {+ if (pass == 0) {+ die("pass must be specified when passes is 2\n");+ }
+
+ if (fpf_file_name == NULL) {+ die("fpf must be specified when passes is 2\n");+ }
+
+ if (pass == 1) {+ enc_cfg->g_pass = VPX_RC_FIRST_PASS;
+ if (!stats_open_file(&app_input->rc_stats, fpf_file_name, 0)) {+ fatal("Failed to open statistics store");+ }
+ } else {+ enc_cfg->g_pass = VPX_RC_LAST_PASS;
+ if (!stats_open_file(&app_input->rc_stats, fpf_file_name, 1)) {+ fatal("Failed to open statistics store");+ }
+ enc_cfg->rc_twopass_stats_in = stats_get(&app_input->rc_stats);
+ }
+ app_input->passes = passes;
+ app_input->pass = pass;
+ }
+
+ if (enc_cfg->rc_target_bitrate > 0) {+ if (min_bitrate > 0) {+ enc_cfg->rc_2pass_vbr_minsection_pct =
+ min_bitrate * 100 / enc_cfg->rc_target_bitrate;
+ }
+ if (max_bitrate > 0) {+ enc_cfg->rc_2pass_vbr_maxsection_pct =
+ max_bitrate * 100 / enc_cfg->rc_target_bitrate;
+ }
+ }
+
+ // Check for unrecognized options
+ for (argi = argv; *argi; ++argi)
+ if (argi[0][0] == '-' && strlen(argi[0]) > 1)
+ die("Error: Unrecognized option %s\n", *argi);+
+ if (argv[0] == NULL || argv[1] == 0) {+ usage_exit();
+ }
+ app_input->input_filename = argv[0];
+ app_input->output_filename = argv[1];
+ free(argv);
+
+ if (enc_cfg->g_w < 16 || enc_cfg->g_w % 2 || enc_cfg->g_h < 16 ||
+ enc_cfg->g_h % 2)
+ die("Invalid resolution: %d x %d\n", enc_cfg->g_w, enc_cfg->g_h);+
+ printf(
+ "Codec %s\nframes: %d, skip: %d\n"
+ "mode: %d, layers: %d\n"
+ "width %d, height: %d,\n"
+ "num: %d, den: %d, bitrate: %d,\n"
+ "gop size: %d\n",
+ vpx_codec_iface_name(vpx_codec_vp9_cx()), app_input->frames_to_code,
+ app_input->frames_to_skip, svc_ctx->encoding_mode,
+ svc_ctx->spatial_layers, enc_cfg->g_w, enc_cfg->g_h,
+ enc_cfg->g_timebase.num, enc_cfg->g_timebase.den,
+ enc_cfg->rc_target_bitrate, enc_cfg->kf_max_dist);
+}
+
+int main(int argc, const char **argv) {+ AppInput app_input = {0};+ VpxVideoWriter *writer = NULL;
+ VpxVideoInfo info = {0};+ vpx_codec_ctx_t codec;
+ vpx_codec_enc_cfg_t enc_cfg;
+ SvcContext svc_ctx;
+ uint32_t i;
+ uint32_t frame_cnt = 0;
+ vpx_image_t raw;
+ vpx_codec_err_t res;
+ int pts = 0; /* PTS starts at 0 */
+ int frame_duration = 1; /* 1 timebase tick per frame */
+ FILE *infile = NULL;
+ int end_of_stream = 0;
+
+ memset(&svc_ctx, 0, sizeof(svc_ctx));
+ svc_ctx.log_print = 1;
+ exec_name = argv[0];
+ parse_command_line(argc, argv, &app_input, &svc_ctx, &enc_cfg);
+
+ // Allocate image buffer
+ if (!vpx_img_alloc(&raw, VPX_IMG_FMT_I420, enc_cfg.g_w, enc_cfg.g_h, 32))
+ die("Failed to allocate image %dx%d\n", enc_cfg.g_w, enc_cfg.g_h);+
+ if (!(infile = fopen(app_input.input_filename, "rb")))
+ die("Failed to open %s for reading\n", app_input.input_filename);+
+ // Initialize codec
+ if (vpx_svc_init(&svc_ctx, &codec, vpx_codec_vp9_cx(), &enc_cfg) !=
+ VPX_CODEC_OK)
+ die("Failed to initialize encoder\n");+
+ info.codec_fourcc = VP9_FOURCC;
+ info.time_base.numerator = enc_cfg.g_timebase.num;
+ info.time_base.denominator = enc_cfg.g_timebase.den;
+ if (vpx_svc_get_layer_resolution(&svc_ctx, svc_ctx.spatial_layers - 1,
+ (unsigned int *)&info.frame_width,
+ (unsigned int *)&info.frame_height) !=
+ VPX_CODEC_OK) {+ die("Failed to get output resolution");+ }
+
+ if (!(app_input.passes == 2 && app_input.pass == 1)) {+ // We don't save the bitstream for the 1st pass on two pass rate control
+ writer = vpx_video_writer_open(app_input.output_filename, kContainerIVF,
+ &info);
+ if (!writer)
+ die("Failed to open %s for writing\n", app_input.output_filename);+ }
+
+ // skip initial frames
+ for (i = 0; i < app_input.frames_to_skip; ++i)
+ vpx_img_read(&raw, infile);
+
+ // Encode frames
+ while (!end_of_stream) {+ if (frame_cnt >= app_input.frames_to_code || !vpx_img_read(&raw, infile)) {+ // We need one extra vpx_svc_encode call at end of stream to flush
+ // encoder and get remaining data
+ end_of_stream = 1;
+ }
+
+ res = vpx_svc_encode(&svc_ctx, &codec, (end_of_stream ? NULL : &raw),
+ pts, frame_duration, VPX_DL_GOOD_QUALITY);
+ printf("%s", vpx_svc_get_message(&svc_ctx));+ if (res != VPX_CODEC_OK) {+ die_codec(&codec, "Failed to encode frame");
+ }
+ if (!(app_input.passes == 2 && app_input.pass == 1)) {+ if (vpx_svc_get_frame_size(&svc_ctx) > 0) {+ vpx_video_writer_write_frame(writer,
+ vpx_svc_get_buffer(&svc_ctx),
+ vpx_svc_get_frame_size(&svc_ctx),
+ pts);
+ }
+ }
+ if (vpx_svc_get_rc_stats_buffer_size(&svc_ctx) > 0) {+ stats_write(&app_input.rc_stats,
+ vpx_svc_get_rc_stats_buffer(&svc_ctx),
+ vpx_svc_get_rc_stats_buffer_size(&svc_ctx));
+ }
+ if (!end_of_stream) {+ ++frame_cnt;
+ pts += frame_duration;
+ }
+ }
+
+ printf("Processed %d frames\n", frame_cnt);+
+ fclose(infile);
+ if (vpx_codec_destroy(&codec)) die_codec(&codec, "Failed to destroy codec");
+
+ if (app_input.passes == 2)
+ stats_close(&app_input.rc_stats, 1);
+
+ if (writer) {+ vpx_video_writer_close(writer);
+ }
+
+ vpx_img_free(&raw);
+
+ // display average size, psnr
+ printf("%s", vpx_svc_dump_statistics(&svc_ctx));+
+ vpx_svc_release(&svc_ctx);
+
+ return EXIT_SUCCESS;
+}