* that benefit from a scalable bitstream.
*/
+#include <math.h>
#include <stdarg.h>
#include <stdlib.h>
#include <string.h>
#include "../tools_common.h"
#include "../video_writer.h"
+#include "../vpx_ports/vpx_timer.h"
#include "vpx/svc_context.h"
#include "vpx/vp8cx.h"
#include "vpx/vpx_encoder.h"
#include "../vpxstats.h"
+#include "vp9/encoder/vp9_encoder.h"
+#define OUTPUT_RC_STATS 1
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 threads_arg =
+ ARG_DEF("th", "threads", 1, "number of threads to use");
+#if OUTPUT_RC_STATS
+static const arg_def_t output_rc_stats_arg =
+ ARG_DEF("rcstat", "output_rc_stats", 1, "output rc stats");
+#endif
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("sl", "spatial-layers", 1, "number of spatial SVC layers");
static const arg_def_t temporal_layers_arg =
ARG_DEF("tl", "temporal-layers", 1, "number of temporal SVC layers");
+static const arg_def_t temporal_layering_mode_arg =
+ ARG_DEF("tlm", "temporal-layering-mode", 1,
+ "temporal layering scheme."
+ "VP9E_TEMPORAL_LAYERING_MODE");
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 =
static const arg_def_t max_bitrate_arg =
ARG_DEF(NULL, "max-bitrate", 1, "Maximum bitrate");
static const arg_def_t lag_in_frame_arg =
- ARG_DEF(NULL, "lag-in-frames", 1, "Number of frame to input before "
- "generating any outputs");
+ ARG_DEF(NULL, "lag-in-frames", 1,
+ "Number of frame to input before "
+ "generating any outputs");
static const arg_def_t rc_end_usage_arg =
ARG_DEF(NULL, "rc-end-usage", 1, "0 - 3: VBR, CBR, CQ, Q");
+static const arg_def_t speed_arg =
+ ARG_DEF("sp", "speed", 1, "speed configuration");
+static const arg_def_t aqmode_arg =
+ ARG_DEF("aq", "aqmode", 1, "aq-mode off/on");
#if CONFIG_VP9_HIGHBITDEPTH
static const struct arg_enum_list bitdepth_enum[] = {
- {"8", VPX_BITS_8},
- {"10", VPX_BITS_10},
- {"12", VPX_BITS_12},
- {NULL, 0}
+ { "8", VPX_BITS_8 }, { "10", VPX_BITS_10 }, { "12", VPX_BITS_12 }, { NULL, 0 }
};
-static const arg_def_t bitdepth_arg =
- ARG_DEF_ENUM("d", "bit-depth", 1, "Bit depth for codec 8, 10 or 12. ",
- bitdepth_enum);
+static const arg_def_t bitdepth_arg = ARG_DEF_ENUM(
+ "d", "bit-depth", 1, "Bit depth for codec 8, 10 or 12. ", bitdepth_enum);
#endif // CONFIG_VP9_HIGHBITDEPTH
+static const arg_def_t *svc_args[] = { &frames_arg,
+ &width_arg,
+ &height_arg,
+ &timebase_arg,
+ &bitrate_arg,
+ &skip_frames_arg,
+ &spatial_layers_arg,
+ &kf_dist_arg,
+ &scale_factors_arg,
+ &passes_arg,
+ &pass_arg,
+ &fpf_name_arg,
+ &min_q_arg,
+ &max_q_arg,
+ &min_bitrate_arg,
+ &max_bitrate_arg,
+ &temporal_layers_arg,
+ &temporal_layering_mode_arg,
+ &lag_in_frame_arg,
+ &threads_arg,
+ &aqmode_arg,
+#if OUTPUT_RC_STATS
+ &output_rc_stats_arg,
+#endif
-static const arg_def_t *svc_args[] = {
- &frames_arg, &width_arg, &height_arg,
- &timebase_arg, &bitrate_arg, &skip_frames_arg, &spatial_layers_arg,
- &kf_dist_arg, &scale_factors_arg, &passes_arg, &pass_arg,
- &fpf_name_arg, &min_q_arg, &max_q_arg, &min_bitrate_arg,
- &max_bitrate_arg, &temporal_layers_arg, &lag_in_frame_arg,
#if CONFIG_VP9_HIGHBITDEPTH
- &bitdepth_arg,
+ &bitdepth_arg,
#endif
- &rc_end_usage_arg, NULL
-};
+ &speed_arg,
+ &rc_end_usage_arg,
+ NULL };
static const uint32_t default_frames_to_skip = 0;
static const uint32_t default_frames_to_code = 60 * 60;
static const uint32_t default_spatial_layers = 5;
static const uint32_t default_temporal_layers = 1;
static const uint32_t default_kf_dist = 100;
+static const uint32_t default_temporal_layering_mode = 0;
+static const uint32_t default_output_rc_stats = 0;
+static const int32_t default_speed = -1; // -1 means use library default.
+static const uint32_t default_threads = 0; // zero means use library default.
typedef struct {
const char *input_filename;
static const char *exec_name;
-void usage_exit() {
+void usage_exit(void) {
fprintf(stderr, "Usage: %s <options> input_filename output_filename\n",
exec_name);
fprintf(stderr, "Options:\n");
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};
+ struct arg arg = { 0 };
char **argv = NULL;
char **argi = NULL;
char **argj = NULL;
const char *fpf_file_name = NULL;
unsigned int min_bitrate = 0;
unsigned int max_bitrate = 0;
- char string_options[1024] = {0};
+ char string_options[1024] = { 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->temporal_layers = default_temporal_layers;
+ svc_ctx->temporal_layering_mode = default_temporal_layering_mode;
+#if OUTPUT_RC_STATS
+ svc_ctx->output_rc_stat = default_output_rc_stats;
+#endif
+ svc_ctx->speed = default_speed;
+ svc_ctx->threads = default_threads;
// start with default encoder configuration
res = vpx_codec_enc_config_default(vpx_codec_vp9_cx(), enc_cfg, 0);
svc_ctx->spatial_layers = arg_parse_uint(&arg);
} else if (arg_match(&arg, &temporal_layers_arg, argi)) {
svc_ctx->temporal_layers = arg_parse_uint(&arg);
+#if OUTPUT_RC_STATS
+ } else if (arg_match(&arg, &output_rc_stats_arg, argi)) {
+ svc_ctx->output_rc_stat = arg_parse_uint(&arg);
+#endif
+ } else if (arg_match(&arg, &speed_arg, argi)) {
+ svc_ctx->speed = arg_parse_uint(&arg);
+ } else if (arg_match(&arg, &aqmode_arg, argi)) {
+ svc_ctx->aqmode = arg_parse_uint(&arg);
+ } else if (arg_match(&arg, &threads_arg, argi)) {
+ svc_ctx->threads = arg_parse_uint(&arg);
+ } else if (arg_match(&arg, &temporal_layering_mode_arg, argi)) {
+ svc_ctx->temporal_layering_mode = enc_cfg->temporal_layering_mode =
+ arg_parse_int(&arg);
+ if (svc_ctx->temporal_layering_mode) {
+ enc_cfg->g_error_resilient = 1;
+ }
} 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;
enc_cfg->g_input_bit_depth = 10;
enc_cfg->g_profile = 2;
break;
- case VPX_BITS_12:
+ case VPX_BITS_12:
enc_cfg->g_input_bit_depth = 12;
enc_cfg->g_profile = 2;
break;
"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->spatial_layers, enc_cfg->g_w, enc_cfg->g_h,
- enc_cfg->g_timebase.num, enc_cfg->g_timebase.den,
+ app_input->frames_to_skip, 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);
}
+#if OUTPUT_RC_STATS
+// For rate control encoding stats.
+struct RateControlStats {
+ // Number of input frames per layer.
+ int layer_input_frames[VPX_MAX_LAYERS];
+ // Total (cumulative) number of encoded frames per layer.
+ int layer_tot_enc_frames[VPX_MAX_LAYERS];
+ // Number of encoded non-key frames per layer.
+ int layer_enc_frames[VPX_MAX_LAYERS];
+ // Framerate per layer (cumulative).
+ double layer_framerate[VPX_MAX_LAYERS];
+ // Target average frame size per layer (per-frame-bandwidth per layer).
+ double layer_pfb[VPX_MAX_LAYERS];
+ // Actual average frame size per layer.
+ double layer_avg_frame_size[VPX_MAX_LAYERS];
+ // Average rate mismatch per layer (|target - actual| / target).
+ double layer_avg_rate_mismatch[VPX_MAX_LAYERS];
+ // Actual encoding bitrate per layer (cumulative).
+ double layer_encoding_bitrate[VPX_MAX_LAYERS];
+ // Average of the short-time encoder actual bitrate.
+ // TODO(marpan): Should we add these short-time stats for each layer?
+ double avg_st_encoding_bitrate;
+ // Variance of the short-time encoder actual bitrate.
+ double variance_st_encoding_bitrate;
+ // Window (number of frames) for computing short-time encoding bitrate.
+ int window_size;
+ // Number of window measurements.
+ int window_count;
+};
+
+// Note: these rate control stats assume only 1 key frame in the
+// sequence (i.e., first frame only).
+static void set_rate_control_stats(struct RateControlStats *rc,
+ vpx_codec_enc_cfg_t *cfg) {
+ unsigned int sl, tl;
+ // Set the layer (cumulative) framerate and the target layer (non-cumulative)
+ // per-frame-bandwidth, for the rate control encoding stats below.
+ const double framerate = cfg->g_timebase.den / cfg->g_timebase.num;
+
+ for (sl = 0; sl < cfg->ss_number_layers; ++sl) {
+ for (tl = 0; tl < cfg->ts_number_layers; ++tl) {
+ const int layer = sl * cfg->ts_number_layers + tl;
+ const int tlayer0 = sl * cfg->ts_number_layers;
+ if (cfg->ts_number_layers == 1)
+ rc->layer_framerate[layer] = framerate;
+ else
+ rc->layer_framerate[layer] = framerate / cfg->ts_rate_decimator[tl];
+ if (tl > 0) {
+ rc->layer_pfb[layer] =
+ 1000.0 * (cfg->layer_target_bitrate[layer] -
+ cfg->layer_target_bitrate[layer - 1]) /
+ (rc->layer_framerate[layer] - rc->layer_framerate[layer - 1]);
+ } else {
+ rc->layer_pfb[tlayer0] = 1000.0 * cfg->layer_target_bitrate[tlayer0] /
+ rc->layer_framerate[tlayer0];
+ }
+ rc->layer_input_frames[layer] = 0;
+ rc->layer_enc_frames[layer] = 0;
+ rc->layer_tot_enc_frames[layer] = 0;
+ rc->layer_encoding_bitrate[layer] = 0.0;
+ rc->layer_avg_frame_size[layer] = 0.0;
+ rc->layer_avg_rate_mismatch[layer] = 0.0;
+ }
+ }
+ rc->window_count = 0;
+ rc->window_size = 15;
+ rc->avg_st_encoding_bitrate = 0.0;
+ rc->variance_st_encoding_bitrate = 0.0;
+}
+
+static void printout_rate_control_summary(struct RateControlStats *rc,
+ vpx_codec_enc_cfg_t *cfg,
+ int frame_cnt) {
+ unsigned int sl, tl;
+ int tot_num_frames = 0;
+ double perc_fluctuation = 0.0;
+ printf("Total number of processed frames: %d\n\n", frame_cnt - 1);
+ printf("Rate control layer stats for sl%d tl%d layer(s):\n\n",
+ cfg->ss_number_layers, cfg->ts_number_layers);
+ for (sl = 0; sl < cfg->ss_number_layers; ++sl) {
+ for (tl = 0; tl < cfg->ts_number_layers; ++tl) {
+ const int layer = sl * cfg->ts_number_layers + tl;
+ const int num_dropped =
+ (tl > 0)
+ ? (rc->layer_input_frames[layer] - rc->layer_enc_frames[layer])
+ : (rc->layer_input_frames[layer] - rc->layer_enc_frames[layer] -
+ 1);
+ if (!sl) tot_num_frames += rc->layer_input_frames[layer];
+ rc->layer_encoding_bitrate[layer] = 0.001 * rc->layer_framerate[layer] *
+ rc->layer_encoding_bitrate[layer] /
+ tot_num_frames;
+ rc->layer_avg_frame_size[layer] =
+ rc->layer_avg_frame_size[layer] / rc->layer_enc_frames[layer];
+ rc->layer_avg_rate_mismatch[layer] = 100.0 *
+ rc->layer_avg_rate_mismatch[layer] /
+ rc->layer_enc_frames[layer];
+ printf("For layer#: sl%d tl%d \n", sl, tl);
+ printf("Bitrate (target vs actual): %d %f.0 kbps\n",
+ cfg->layer_target_bitrate[layer],
+ rc->layer_encoding_bitrate[layer]);
+ printf("Average frame size (target vs actual): %f %f bits\n",
+ rc->layer_pfb[layer], rc->layer_avg_frame_size[layer]);
+ printf("Average rate_mismatch: %f\n", rc->layer_avg_rate_mismatch[layer]);
+ printf(
+ "Number of input frames, encoded (non-key) frames, "
+ "and percent dropped frames: %d %d %f.0 \n",
+ rc->layer_input_frames[layer], rc->layer_enc_frames[layer],
+ 100.0 * num_dropped / rc->layer_input_frames[layer]);
+ printf("\n");
+ }
+ }
+ rc->avg_st_encoding_bitrate = rc->avg_st_encoding_bitrate / rc->window_count;
+ rc->variance_st_encoding_bitrate =
+ rc->variance_st_encoding_bitrate / rc->window_count -
+ (rc->avg_st_encoding_bitrate * rc->avg_st_encoding_bitrate);
+ perc_fluctuation = 100.0 * sqrt(rc->variance_st_encoding_bitrate) /
+ rc->avg_st_encoding_bitrate;
+ printf("Short-time stats, for window of %d frames: \n", rc->window_size);
+ printf("Average, rms-variance, and percent-fluct: %f %f %f \n",
+ rc->avg_st_encoding_bitrate, sqrt(rc->variance_st_encoding_bitrate),
+ perc_fluctuation);
+ if (frame_cnt != tot_num_frames)
+ die("Error: Number of input frames not equal to output encoded frames != "
+ "%d tot_num_frames = %d\n",
+ frame_cnt, tot_num_frames);
+}
+
+vpx_codec_err_t parse_superframe_index(const uint8_t *data, size_t data_sz,
+ uint32_t sizes[8], int *count) {
+ // A chunk ending with a byte matching 0xc0 is an invalid chunk unless
+ // it is a super frame index. If the last byte of real video compression
+ // data is 0xc0 the encoder must add a 0 byte. If we have the marker but
+ // not the associated matching marker byte at the front of the index we have
+ // an invalid bitstream and need to return an error.
+
+ uint8_t marker;
+
+ marker = *(data + data_sz - 1);
+ *count = 0;
+
+ if ((marker & 0xe0) == 0xc0) {
+ const uint32_t frames = (marker & 0x7) + 1;
+ const uint32_t mag = ((marker >> 3) & 0x3) + 1;
+ const size_t index_sz = 2 + mag * frames;
+
+ // This chunk is marked as having a superframe index but doesn't have
+ // enough data for it, thus it's an invalid superframe index.
+ if (data_sz < index_sz) return VPX_CODEC_CORRUPT_FRAME;
+
+ {
+ const uint8_t marker2 = *(data + data_sz - index_sz);
+
+ // This chunk is marked as having a superframe index but doesn't have
+ // the matching marker byte at the front of the index therefore it's an
+ // invalid chunk.
+ if (marker != marker2) return VPX_CODEC_CORRUPT_FRAME;
+ }
+
+ {
+ // Found a valid superframe index.
+ uint32_t i, j;
+ const uint8_t *x = &data[data_sz - index_sz + 1];
+
+ for (i = 0; i < frames; ++i) {
+ uint32_t this_sz = 0;
+
+ for (j = 0; j < mag; ++j) this_sz |= (*x++) << (j * 8);
+ sizes[i] = this_sz;
+ }
+ *count = frames;
+ }
+ }
+ return VPX_CODEC_OK;
+}
+#endif
+
+// Example pattern for spatial layers and 2 temporal layers used in the
+// bypass/flexible mode. The pattern corresponds to the pattern
+// VP9E_TEMPORAL_LAYERING_MODE_0101 (temporal_layering_mode == 2) used in
+// non-flexible mode.
+void set_frame_flags_bypass_mode(int sl, int tl, int num_spatial_layers,
+ int is_key_frame,
+ vpx_svc_ref_frame_config_t *ref_frame_config) {
+ for (sl = 0; sl < num_spatial_layers; ++sl) {
+ if (!tl) {
+ if (!sl) {
+ ref_frame_config->frame_flags[sl] =
+ VP8_EFLAG_NO_REF_GF | VP8_EFLAG_NO_REF_ARF | VP8_EFLAG_NO_UPD_GF |
+ VP8_EFLAG_NO_UPD_ARF;
+ } else {
+ if (is_key_frame) {
+ ref_frame_config->frame_flags[sl] =
+ VP8_EFLAG_NO_REF_LAST | VP8_EFLAG_NO_REF_ARF |
+ VP8_EFLAG_NO_UPD_GF | VP8_EFLAG_NO_UPD_ARF;
+ } else {
+ ref_frame_config->frame_flags[sl] =
+ VP8_EFLAG_NO_REF_ARF | VP8_EFLAG_NO_UPD_GF | VP8_EFLAG_NO_UPD_ARF;
+ }
+ }
+ } else if (tl == 1) {
+ if (!sl) {
+ ref_frame_config->frame_flags[sl] =
+ VP8_EFLAG_NO_REF_GF | VP8_EFLAG_NO_REF_ARF | VP8_EFLAG_NO_UPD_LAST |
+ VP8_EFLAG_NO_UPD_GF;
+ } else {
+ ref_frame_config->frame_flags[sl] =
+ VP8_EFLAG_NO_REF_ARF | VP8_EFLAG_NO_UPD_LAST | VP8_EFLAG_NO_UPD_GF;
+ }
+ }
+ if (tl == 0) {
+ ref_frame_config->lst_fb_idx[sl] = sl;
+ if (sl)
+ ref_frame_config->gld_fb_idx[sl] = sl - 1;
+ else
+ ref_frame_config->gld_fb_idx[sl] = 0;
+ ref_frame_config->alt_fb_idx[sl] = 0;
+ } else if (tl == 1) {
+ ref_frame_config->lst_fb_idx[sl] = sl;
+ ref_frame_config->gld_fb_idx[sl] = num_spatial_layers + sl - 1;
+ ref_frame_config->alt_fb_idx[sl] = num_spatial_layers + sl;
+ }
+ }
+}
+
int main(int argc, const char **argv) {
- AppInput app_input = {0};
+ AppInput app_input = { 0 };
VpxVideoWriter *writer = NULL;
- VpxVideoInfo info = {0};
+ VpxVideoInfo info = { 0 };
vpx_codec_ctx_t codec;
vpx_codec_enc_cfg_t enc_cfg;
SvcContext svc_ctx;
FILE *infile = NULL;
int end_of_stream = 0;
int frames_received = 0;
-
+#if OUTPUT_RC_STATS
+ VpxVideoWriter *outfile[VPX_TS_MAX_LAYERS] = { NULL };
+ struct RateControlStats rc;
+ vpx_svc_layer_id_t layer_id;
+ vpx_svc_ref_frame_config_t ref_frame_config;
+ int sl, tl;
+ double sum_bitrate = 0.0;
+ double sum_bitrate2 = 0.0;
+ double framerate = 30.0;
+#endif
+ struct vpx_usec_timer timer;
+ int64_t cx_time = 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
+// Allocate image buffer
#if CONFIG_VP9_HIGHBITDEPTH
- if (!vpx_img_alloc(&raw, enc_cfg.g_input_bit_depth == 8 ?
- VPX_IMG_FMT_I420 : VPX_IMG_FMT_I42016,
+ if (!vpx_img_alloc(&raw, enc_cfg.g_input_bit_depth == 8 ? VPX_IMG_FMT_I420
+ : VPX_IMG_FMT_I42016,
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);
}
VPX_CODEC_OK)
die("Failed to initialize encoder\n");
+#if OUTPUT_RC_STATS
+ if (svc_ctx.output_rc_stat) {
+ set_rate_control_stats(&rc, &enc_cfg);
+ framerate = enc_cfg.g_timebase.den / enc_cfg.g_timebase.num;
+ }
+#endif
+
info.codec_fourcc = VP9_FOURCC;
info.time_base.numerator = enc_cfg.g_timebase.num;
info.time_base.denominator = enc_cfg.g_timebase.den;
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);
+ 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);
}
+#if OUTPUT_RC_STATS
+ // For now, just write temporal layer streams.
+ // TODO(wonkap): do spatial by re-writing superframe.
+ if (svc_ctx.output_rc_stat) {
+ for (tl = 0; tl < enc_cfg.ts_number_layers; ++tl) {
+ char file_name[PATH_MAX];
+
+ snprintf(file_name, sizeof(file_name), "%s_t%d.ivf",
+ app_input.output_filename, tl);
+ outfile[tl] = vpx_video_writer_open(file_name, kContainerIVF, &info);
+ if (!outfile[tl]) die("Failed to open %s for writing", file_name);
+ }
+ }
+#endif
// skip initial frames
- for (i = 0; i < app_input.frames_to_skip; ++i)
- vpx_img_read(&raw, infile);
+ for (i = 0; i < app_input.frames_to_skip; ++i) vpx_img_read(&raw, infile);
+
+ if (svc_ctx.speed != -1)
+ vpx_codec_control(&codec, VP8E_SET_CPUUSED, svc_ctx.speed);
+ if (svc_ctx.threads)
+ vpx_codec_control(&codec, VP9E_SET_TILE_COLUMNS, (svc_ctx.threads >> 1));
+ if (svc_ctx.speed >= 5 && svc_ctx.aqmode == 1)
+ vpx_codec_control(&codec, VP9E_SET_AQ_MODE, 3);
// Encode frames
while (!end_of_stream) {
end_of_stream = 1;
}
- res = vpx_svc_encode(&svc_ctx, &codec, (end_of_stream ? NULL : &raw),
- pts, frame_duration, VPX_DL_GOOD_QUALITY);
+ // For BYPASS/FLEXIBLE mode, set the frame flags (reference and updates)
+ // and the buffer indices for each spatial layer of the current
+ // (super)frame to be encoded. The temporal layer_id for the current frame
+ // also needs to be set.
+ // TODO(marpan): Should rename the "VP9E_TEMPORAL_LAYERING_MODE_BYPASS"
+ // mode to "VP9E_LAYERING_MODE_BYPASS".
+ if (svc_ctx.temporal_layering_mode == VP9E_TEMPORAL_LAYERING_MODE_BYPASS) {
+ layer_id.spatial_layer_id = 0;
+ // Example for 2 temporal layers.
+ if (frame_cnt % 2 == 0)
+ layer_id.temporal_layer_id = 0;
+ else
+ layer_id.temporal_layer_id = 1;
+ // Note that we only set the temporal layer_id, since we are calling
+ // the encode for the whole superframe. The encoder will internally loop
+ // over all the spatial layers for the current superframe.
+ vpx_codec_control(&codec, VP9E_SET_SVC_LAYER_ID, &layer_id);
+ set_frame_flags_bypass_mode(sl, layer_id.temporal_layer_id,
+ svc_ctx.spatial_layers, frame_cnt == 0,
+ &ref_frame_config);
+ vpx_codec_control(&codec, VP9E_SET_SVC_REF_FRAME_CONFIG,
+ &ref_frame_config);
+ // Keep track of input frames, to account for frame drops in rate control
+ // stats/metrics.
+ for (sl = 0; sl < enc_cfg.ss_number_layers; ++sl) {
+ ++rc.layer_input_frames[sl * enc_cfg.ts_number_layers +
+ layer_id.temporal_layer_id];
+ }
+ }
+
+ vpx_usec_timer_start(&timer);
+ res = vpx_svc_encode(
+ &svc_ctx, &codec, (end_of_stream ? NULL : &raw), pts, frame_duration,
+ svc_ctx.speed >= 5 ? VPX_DL_REALTIME : VPX_DL_GOOD_QUALITY);
+ vpx_usec_timer_mark(&timer);
+ cx_time += vpx_usec_timer_elapsed(&timer);
+
printf("%s", vpx_svc_get_message(&svc_ctx));
+ fflush(stdout);
if (res != VPX_CODEC_OK) {
die_codec(&codec, "Failed to encode frame");
}
while ((cx_pkt = vpx_codec_get_cx_data(&codec, &iter)) != NULL) {
switch (cx_pkt->kind) {
case VPX_CODEC_CX_FRAME_PKT: {
- if (cx_pkt->data.frame.sz > 0)
- vpx_video_writer_write_frame(writer,
- cx_pkt->data.frame.buf,
+ SvcInternal_t *const si = (SvcInternal_t *)svc_ctx.internal;
+ if (cx_pkt->data.frame.sz > 0) {
+#if OUTPUT_RC_STATS
+ uint32_t sizes[8];
+ int count = 0;
+#endif
+ vpx_video_writer_write_frame(writer, cx_pkt->data.frame.buf,
cx_pkt->data.frame.sz,
cx_pkt->data.frame.pts);
+#if OUTPUT_RC_STATS
+ // TODO(marpan/wonkap): Put this (to line728) in separate function.
+ if (svc_ctx.output_rc_stat) {
+ vpx_codec_control(&codec, VP9E_GET_SVC_LAYER_ID, &layer_id);
+ parse_superframe_index(cx_pkt->data.frame.buf,
+ cx_pkt->data.frame.sz, sizes, &count);
+ // Note computing input_layer_frames here won't account for frame
+ // drops in rate control stats.
+ // TODO(marpan): Fix this for non-bypass mode so we can get stats
+ // for dropped frames.
+ if (svc_ctx.temporal_layering_mode !=
+ VP9E_TEMPORAL_LAYERING_MODE_BYPASS) {
+ for (sl = 0; sl < enc_cfg.ss_number_layers; ++sl) {
+ ++rc.layer_input_frames[sl * enc_cfg.ts_number_layers +
+ layer_id.temporal_layer_id];
+ }
+ }
+ for (tl = layer_id.temporal_layer_id;
+ tl < enc_cfg.ts_number_layers; ++tl) {
+ vpx_video_writer_write_frame(
+ outfile[tl], cx_pkt->data.frame.buf, cx_pkt->data.frame.sz,
+ cx_pkt->data.frame.pts);
+ }
+
+ for (sl = 0; sl < enc_cfg.ss_number_layers; ++sl) {
+ for (tl = layer_id.temporal_layer_id;
+ tl < enc_cfg.ts_number_layers; ++tl) {
+ const int layer = sl * enc_cfg.ts_number_layers + tl;
+ ++rc.layer_tot_enc_frames[layer];
+ rc.layer_encoding_bitrate[layer] += 8.0 * sizes[sl];
+ // Keep count of rate control stats per layer, for non-key
+ // frames.
+ if (tl == layer_id.temporal_layer_id &&
+ !(cx_pkt->data.frame.flags & VPX_FRAME_IS_KEY)) {
+ rc.layer_avg_frame_size[layer] += 8.0 * sizes[sl];
+ rc.layer_avg_rate_mismatch[layer] +=
+ fabs(8.0 * sizes[sl] - rc.layer_pfb[layer]) /
+ rc.layer_pfb[layer];
+ ++rc.layer_enc_frames[layer];
+ }
+ }
+ }
+
+ // Update for short-time encoding bitrate states, for moving
+ // window of size rc->window, shifted by rc->window / 2.
+ // Ignore first window segment, due to key frame.
+ if (frame_cnt > rc.window_size) {
+ tl = layer_id.temporal_layer_id;
+ for (sl = 0; sl < enc_cfg.ss_number_layers; ++sl) {
+ sum_bitrate += 0.001 * 8.0 * sizes[sl] * framerate;
+ }
+ if (frame_cnt % rc.window_size == 0) {
+ rc.window_count += 1;
+ rc.avg_st_encoding_bitrate += sum_bitrate / rc.window_size;
+ rc.variance_st_encoding_bitrate +=
+ (sum_bitrate / rc.window_size) *
+ (sum_bitrate / rc.window_size);
+ sum_bitrate = 0.0;
+ }
+ }
+
+ // Second shifted window.
+ if (frame_cnt > rc.window_size + rc.window_size / 2) {
+ tl = layer_id.temporal_layer_id;
+ for (sl = 0; sl < enc_cfg.ss_number_layers; ++sl) {
+ sum_bitrate2 += 0.001 * 8.0 * sizes[sl] * framerate;
+ }
+
+ if (frame_cnt > 2 * rc.window_size &&
+ frame_cnt % rc.window_size == 0) {
+ rc.window_count += 1;
+ rc.avg_st_encoding_bitrate += sum_bitrate2 / rc.window_size;
+ rc.variance_st_encoding_bitrate +=
+ (sum_bitrate2 / rc.window_size) *
+ (sum_bitrate2 / rc.window_size);
+ sum_bitrate2 = 0.0;
+ }
+ }
+ }
+#endif
+ }
printf("SVC frame: %d, kf: %d, size: %d, pts: %d\n", frames_received,
!!(cx_pkt->data.frame.flags & VPX_FRAME_IS_KEY),
(int)cx_pkt->data.frame.sz, (int)cx_pkt->data.frame.pts);
+ if (enc_cfg.ss_number_layers == 1 && enc_cfg.ts_number_layers == 1)
+ si->bytes_sum[0] += (int)cx_pkt->data.frame.sz;
++frames_received;
break;
}
case VPX_CODEC_STATS_PKT: {
- stats_write(&app_input.rc_stats,
- cx_pkt->data.twopass_stats.buf,
+ stats_write(&app_input.rc_stats, cx_pkt->data.twopass_stats.buf,
cx_pkt->data.twopass_stats.sz);
break;
}
- default: {
- break;
- }
+ default: { break; }
}
}
}
}
- printf("Processed %d frames\n", frame_cnt);
+ // Compensate for the extra frame count for the bypass mode.
+ if (svc_ctx.temporal_layering_mode == VP9E_TEMPORAL_LAYERING_MODE_BYPASS) {
+ for (sl = 0; sl < enc_cfg.ss_number_layers; ++sl) {
+ const int layer =
+ sl * enc_cfg.ts_number_layers + layer_id.temporal_layer_id;
+ --rc.layer_input_frames[layer];
+ }
+ }
+ printf("Processed %d frames\n", frame_cnt);
fclose(infile);
+#if OUTPUT_RC_STATS
+ if (svc_ctx.output_rc_stat) {
+ printout_rate_control_summary(&rc, &enc_cfg, frame_cnt);
+ printf("\n");
+ }
+#endif
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 (app_input.passes == 2) stats_close(&app_input.rc_stats, 1);
if (writer) {
vpx_video_writer_close(writer);
}
-
+#if OUTPUT_RC_STATS
+ if (svc_ctx.output_rc_stat) {
+ for (tl = 0; tl < enc_cfg.ts_number_layers; ++tl) {
+ vpx_video_writer_close(outfile[tl]);
+ }
+ }
+#endif
+ printf("Frame cnt and encoding time/FPS stats for encoding: %d %f %f \n",
+ frame_cnt, 1000 * (float)cx_time / (double)(frame_cnt * 1000000),
+ 1000000 * (double)frame_cnt / (double)cx_time);
vpx_img_free(&raw);
-
// display average size, psnr
printf("%s", vpx_svc_dump_statistics(&svc_ctx));
-
vpx_svc_release(&svc_ctx);
-
return EXIT_SUCCESS;
}
projects / libvpx / blobdiff