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Cleaning up {simple, twopass}_encoder examples.

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Change-Id: Ide9c408f4cee7408741ef8c0ffac01645a5a67ca
This commit is contained in:
Dmitry Kovalev 2014-02-07 11:37:39 -08:00
parent 9e41de4d61
commit 592936b497
5 changed files with 192 additions and 225 deletions
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4
examples.mk
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@ -105,6 +105,10 @@ simple_encoder.SRCS += video_writer.h video_writer.c
simple_encoder.GUID = 4607D299-8A71-4D2C-9B1D-071899B6FBFD simple_encoder.GUID = 4607D299-8A71-4D2C-9B1D-071899B6FBFD
simple_encoder.DESCRIPTION = Simplified encoder loop simple_encoder.DESCRIPTION = Simplified encoder loop
EXAMPLES-$(CONFIG_VP8_ENCODER) += twopass_encoder.c EXAMPLES-$(CONFIG_VP8_ENCODER) += twopass_encoder.c
twopass_encoder.SRCS += ivfenc.h ivfenc.c
twopass_encoder.SRCS += tools_common.h tools_common.c
twopass_encoder.SRCS += video_common.h
twopass_encoder.SRCS += video_writer.h video_writer.c
twopass_encoder.GUID = 73494FA6-4AF9-4763-8FBB-265C92402FD8 twopass_encoder.GUID = 73494FA6-4AF9-4763-8FBB-265C92402FD8
twopass_encoder.DESCRIPTION = Two-pass encoder loop twopass_encoder.DESCRIPTION = Two-pass encoder loop
EXAMPLES-$(CONFIG_VP8_ENCODER) += force_keyframe.c EXAMPLES-$(CONFIG_VP8_ENCODER) += force_keyframe.c

61
examples/simple_encoder.c
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@ -86,7 +86,6 @@
#include <string.h> #include <string.h>
#define VPX_CODEC_DISABLE_COMPAT 1 #define VPX_CODEC_DISABLE_COMPAT 1
#include "vpx/vp8cx.h" #include "vpx/vp8cx.h"
#include "vpx/vpx_encoder.h" #include "vpx/vpx_encoder.h"
@ -102,33 +101,17 @@ void usage_exit() {
exit(EXIT_FAILURE); exit(EXIT_FAILURE);
} }
static int read_frame(FILE *f, vpx_image_t *img) {
int res = 1;
size_t to_read = img->w * img->h * 3 / 2;
size_t nbytes = fread(img->planes[0], 1, to_read, f);
if (nbytes != to_read) {
res = 0;
if (nbytes > 0)
printf("Warning: Read partial frame. Check your width & height!\n");
}
return res;
}
static int is_valid_dimension(int value) {
return value >= 16 && (value % 2 == 0);
}
int main(int argc, char **argv) { int main(int argc, char **argv) {
FILE *infile; FILE *infile = NULL;
vpx_codec_ctx_t codec; vpx_codec_ctx_t codec;
vpx_codec_enc_cfg_t cfg; vpx_codec_enc_cfg_t cfg;
int frame_count = 0; int frame_count = 0;
vpx_image_t raw; vpx_image_t raw;
vpx_codec_err_t res; vpx_codec_err_t res;
VpxVideoInfo info; VpxVideoInfo info = {0};
VpxVideoWriter *writer; VpxVideoWriter *writer = NULL;
const int fps = 30; // TODO(dkovalev) add command line argument const int fps = 30; // TODO(dkovalev) add command line argument
const int bitrate = 100; // kbit/s TODO(dkovalev) add command line argument const int bitrate = 200; // kbit/s TODO(dkovalev) add command line argument
exec_name = argv[0]; exec_name = argv[0];
@ -141,21 +124,23 @@ int main(int argc, char **argv) {
info.time_base.numerator = 1; info.time_base.numerator = 1;
info.time_base.denominator = fps; info.time_base.denominator = fps;
if (!is_valid_dimension(info.frame_width) || if (info.frame_width <= 0 ||
!is_valid_dimension(info.frame_height)) info.frame_height <= 0 ||
die("Invalid resolution: %dx%d", info.frame_width, info.frame_height); (info.frame_width % 2) != 0 ||
(info.frame_height % 2) != 0) {
die("Invalid frame size: %dx%d", info.frame_width, info.frame_height);
}
if (!vpx_img_alloc(&raw, VPX_IMG_FMT_I420, info.frame_width, if (!vpx_img_alloc(&raw, VPX_IMG_FMT_I420, info.frame_width,
info.frame_height, 1)) info.frame_height, 1)) {
die("Failed to allocate image"); die("Failed to allocate image.");
}
printf("Using %s\n", vpx_codec_iface_name(interface)); printf("Using %s\n", vpx_codec_iface_name(interface));
res = vpx_codec_enc_config_default(interface, &cfg, 0); res = vpx_codec_enc_config_default(interface, &cfg, 0);
if (res) { if (res)
printf("Failed to get config: %s\n", vpx_codec_err_to_string(res)); die_codec(&codec, "Failed to get default codec config.");
return EXIT_FAILURE;
}
cfg.g_w = info.frame_width; cfg.g_w = info.frame_width;
cfg.g_h = info.frame_height; cfg.g_h = info.frame_height;
@ -167,25 +152,23 @@ int main(int argc, char **argv) {
if (!writer) if (!writer)
die("Failed to open %s for writing.", argv[4]); die("Failed to open %s for writing.", argv[4]);
// Open input file for this encoding pass
if (!(infile = fopen(argv[3], "rb"))) if (!(infile = fopen(argv[3], "rb")))
die("Failed to open %s for reading.", argv[3]); die("Failed to open %s for reading.", argv[3]);
// Initialize codec
if (vpx_codec_enc_init(&codec, interface, &cfg, 0)) if (vpx_codec_enc_init(&codec, interface, &cfg, 0))
die_codec(&codec, "Failed to initialize encoder"); die_codec(&codec, "Failed to initialize encoder");
while (vpx_img_read(&raw, infile)) {
while (read_frame(infile, &raw)) {
vpx_codec_iter_t iter = NULL; vpx_codec_iter_t iter = NULL;
const vpx_codec_cx_pkt_t *pkt = NULL; const vpx_codec_cx_pkt_t *pkt = NULL;
++frame_count;
res = vpx_codec_encode(&codec, &raw, frame_count, 1, 0, res = vpx_codec_encode(&codec, &raw, frame_count, 1, 0,
VPX_DL_GOOD_QUALITY); VPX_DL_GOOD_QUALITY);
if (res != VPX_CODEC_OK) if (res != VPX_CODEC_OK)
die_codec(&codec, "Failed to encode frame"); die_codec(&codec, "Failed to encode frame");
++frame_count;
while ((pkt = vpx_codec_get_cx_data(&codec, &iter)) != NULL) { while ((pkt = vpx_codec_get_cx_data(&codec, &iter)) != NULL) {
if (pkt->kind == VPX_CODEC_CX_FRAME_PKT) { if (pkt->kind == VPX_CODEC_CX_FRAME_PKT) {
const int keyframe = (pkt->data.frame.flags & VPX_FRAME_IS_KEY) != 0; const int keyframe = (pkt->data.frame.flags & VPX_FRAME_IS_KEY) != 0;
@ -195,14 +178,14 @@ int main(int argc, char **argv) {
pkt->data.frame.pts)) pkt->data.frame.pts))
die_codec(&codec, "Failed to write compressed frame."); die_codec(&codec, "Failed to write compressed frame.");
printf(keyframe ? "K" : "."); printf(keyframe ? "K" : ".");
fflush(stdout);
} }
} }
} }
printf("\n"); printf("\n");
fclose(infile); fclose(infile);
printf("Processed %d frames.\n", frame_count); printf("Processed %d frames.\n", frame_count);
vpx_img_free(&raw); vpx_img_free(&raw);
if (vpx_codec_destroy(&codec)) if (vpx_codec_destroy(&codec))
die_codec(&codec, "Failed to destroy codec."); die_codec(&codec, "Failed to destroy codec.");

326
examples/twopass_encoder.c
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@ -50,218 +50,172 @@
#include <stdio.h> #include <stdio.h>
#include <stdlib.h> #include <stdlib.h>
#include <stdarg.h>
#include <string.h> #include <string.h>
#define VPX_CODEC_DISABLE_COMPAT 1 #define VPX_CODEC_DISABLE_COMPAT 1
#include "vpx/vpx_encoder.h"
#include "vpx/vp8cx.h" #include "vpx/vp8cx.h"
#include "vpx/vpx_encoder.h"
#include "./tools_common.h"
#include "./video_writer.h"
#define interface (vpx_codec_vp8_cx()) #define interface (vpx_codec_vp8_cx())
#define fourcc 0x30385056
#define IVF_FILE_HDR_SZ (32) static const char *exec_name;
#define IVF_FRAME_HDR_SZ (12)
static void mem_put_le16(char *mem, unsigned int val) { void usage_exit() {
mem[0] = val; fprintf(stderr, "Usage: %s <width> <height> <infile> <outfile>\n", exec_name);
mem[1] = val>>8; exit(EXIT_FAILURE);
} }
static void mem_put_le32(char *mem, unsigned int val) { static void get_frame_stats(vpx_codec_ctx_t *ctx,
mem[0] = val; const vpx_image_t *img,
mem[1] = val>>8; vpx_codec_pts_t pts,
mem[2] = val>>16; uint64_t duration,
mem[3] = val>>24; vpx_enc_frame_flags_t flags,
} uint64_t deadline,
vpx_fixed_buf_t *stats) {
vpx_codec_iter_t iter = NULL;
const vpx_codec_cx_pkt_t *pkt = NULL;
const vpx_codec_err_t res = vpx_codec_encode(ctx, img, pts, duration, flags,
deadline);
if (res != VPX_CODEC_OK)
die_codec(ctx, "Failed to get frame stats.");
static void die(const char *fmt, ...) { while ((pkt = vpx_codec_get_cx_data(ctx, &iter)) != NULL) {
va_list ap; if (pkt->kind == VPX_CODEC_STATS_PKT) {
const uint8_t *const pkt_buf = pkt->data.twopass_stats.buf;
va_start(ap, fmt); const size_t pkt_size = pkt->data.twopass_stats.sz;
vprintf(fmt, ap); stats->buf = realloc(stats->buf, stats->sz + pkt_size);
if(fmt[strlen(fmt)-1] != '\n') memcpy((uint8_t *)stats->buf + stats->sz, pkt_buf, pkt_size);
printf("\n"); stats->sz += pkt_size;
exit(EXIT_FAILURE);
}
static void die_codec(vpx_codec_ctx_t *ctx, const char *s) {
const char *detail = vpx_codec_error_detail(ctx);
printf("%s: %s\n", s, vpx_codec_error(ctx));
if(detail)
printf(" %s\n",detail);
exit(EXIT_FAILURE);
}
static int read_frame(FILE *f, vpx_image_t *img) {
size_t nbytes, to_read;
int res = 1;
to_read = img->w*img->h*3/2;
nbytes = fread(img->planes[0], 1, to_read, f);
if(nbytes != to_read) {
res = 0;
if(nbytes > 0)
printf("Warning: Read partial frame. Check your width & height!\n");
} }
return res; }
} }
static void write_ivf_file_header(FILE *outfile, static void encode_frame(vpx_codec_ctx_t *ctx,
const vpx_codec_enc_cfg_t *cfg, const vpx_image_t *img,
int frame_cnt) { vpx_codec_pts_t pts,
char header[32]; uint64_t duration,
vpx_enc_frame_flags_t flags,
uint64_t deadline,
VpxVideoWriter *writer) {
vpx_codec_iter_t iter = NULL;
const vpx_codec_cx_pkt_t *pkt = NULL;
const vpx_codec_err_t res = vpx_codec_encode(ctx, img, pts, duration, flags,
deadline);
if (res != VPX_CODEC_OK)
die_codec(ctx, "Failed to encode frame.");
if(cfg->g_pass != VPX_RC_ONE_PASS && cfg->g_pass != VPX_RC_LAST_PASS) while ((pkt = vpx_codec_get_cx_data(ctx, &iter)) != NULL) {
return; if (pkt->kind == VPX_CODEC_CX_FRAME_PKT) {
header[0] = 'D'; const int keyframe = (pkt->data.frame.flags & VPX_FRAME_IS_KEY) != 0;
header[1] = 'K';
header[2] = 'I';
header[3] = 'F';
mem_put_le16(header+4, 0); /* version */
mem_put_le16(header+6, 32); /* headersize */
mem_put_le32(header+8, fourcc); /* headersize */
mem_put_le16(header+12, cfg->g_w); /* width */
mem_put_le16(header+14, cfg->g_h); /* height */
mem_put_le32(header+16, cfg->g_timebase.den); /* rate */
mem_put_le32(header+20, cfg->g_timebase.num); /* scale */
mem_put_le32(header+24, frame_cnt); /* length */
mem_put_le32(header+28, 0); /* unused */
(void) fwrite(header, 1, 32, outfile); if (!vpx_video_writer_write_frame(writer, pkt->data.frame.buf,
} pkt->data.frame.sz,
pkt->data.frame.pts))
die_codec(ctx, "Failed to write compressed frame.");
static void write_ivf_frame_header(FILE *outfile, printf(keyframe ? "K" : ".");
const vpx_codec_cx_pkt_t *pkt) fflush(stdout);
{ }
char header[12]; }
vpx_codec_pts_t pts;
if(pkt->kind != VPX_CODEC_CX_FRAME_PKT)
return;
pts = pkt->data.frame.pts;
mem_put_le32(header, pkt->data.frame.sz);
mem_put_le32(header+4, pts&0xFFFFFFFF);
mem_put_le32(header+8, pts >> 32);
(void) fwrite(header, 1, 12, outfile);
} }
int main(int argc, char **argv) { int main(int argc, char **argv) {
FILE *infile, *outfile; FILE *infile = NULL;
vpx_codec_ctx_t codec; VpxVideoWriter *writer = NULL;
vpx_codec_enc_cfg_t cfg; vpx_codec_ctx_t codec;
int frame_cnt = 0; vpx_codec_enc_cfg_t cfg;
vpx_image_t raw; vpx_image_t raw;
vpx_codec_err_t res; vpx_codec_err_t res;
long width; vpx_fixed_buf_t stats = {0};
long height; VpxVideoInfo info = {0};
int frame_avail; int pass;
int got_data; const int fps = 30; // TODO(dkovalev) add command line argument
int flags = 0; const int bitrate = 200; // kbit/s TODO(dkovalev) add command line argument
int pass;
vpx_fixed_buf_t stats = {0};
/* Open files */ if (argc != 5)
if(argc!=5) die("Invalid number of arguments.");
die("Usage: %s <width> <height> <infile> <outfile>\n", argv[0]);
width = strtol(argv[1], NULL, 0);
height = strtol(argv[2], NULL, 0);
if(width < 16 || width%2 || height <16 || height%2)
die("Invalid resolution: %ldx%ld", width, height);
if(!vpx_img_alloc(&raw, VPX_IMG_FMT_I420, width, height, 1))
die("Faile to allocate image", width, height);
if(!(outfile = fopen(argv[4], "wb")))
die("Failed to open %s for writing", argv[4]);
printf("Using %s\n",vpx_codec_iface_name(interface)); info.codec_fourcc = VP8_FOURCC;
info.time_base.numerator = 1;
info.time_base.denominator = fps;
info.frame_width = strtol(argv[1], NULL, 0);
info.frame_height = strtol(argv[2], NULL, 0);
/* Populate encoder configuration */ if (info.frame_width <= 0 ||
res = vpx_codec_enc_config_default(interface, &cfg, 0); info.frame_height <= 0 ||
if(res) { (info.frame_width % 2) != 0 ||
printf("Failed to get config: %s\n", vpx_codec_err_to_string(res)); (info.frame_height % 2) != 0) {
return EXIT_FAILURE; die("Invalid frame size: %dx%d", info.frame_width, info.frame_height);
}
if (!vpx_img_alloc(&raw, VPX_IMG_FMT_I420, info.frame_width,
info.frame_height, 1)) {
die("Failed to allocate image", info.frame_width, info.frame_height);
}
writer = vpx_video_writer_open(argv[4], kContainerIVF, &info);
if (!writer)
die("Failed to open %s for writing", argv[4]);
printf("Using %s\n", vpx_codec_iface_name(interface));
res = vpx_codec_enc_config_default(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;
for (pass = 0; pass < 2; ++pass) {
int frame_count = 0;
if (pass == 0) {
cfg.g_pass = VPX_RC_FIRST_PASS;
} else {
cfg.g_pass = VPX_RC_LAST_PASS;
cfg.rc_twopass_stats_in = stats;
} }
/* Update the default configuration with our settings */ if (!(infile = fopen(argv[3], "rb")))
cfg.rc_target_bitrate = width * height * cfg.rc_target_bitrate die("Failed to open %s for reading", argv[3]);
/ cfg.g_w / cfg.g_h;
cfg.g_w = width;
cfg.g_h = height;
write_ivf_file_header(outfile, &cfg, 0); if (vpx_codec_enc_init(&codec, interface, &cfg, 0))
die_codec(&codec, "Failed to initialize encoder");
for(pass=0; pass<2; pass++) { while (vpx_img_read(&raw, infile)) {
frame_cnt = 0; ++frame_count;
if(pass == 0) if (pass == 0) {
cfg.g_pass = VPX_RC_FIRST_PASS; get_frame_stats(&codec, &raw, frame_count, 1, 0, VPX_DL_BEST_QUALITY,
else { &stats);
cfg.g_pass = VPX_RC_LAST_PASS; } else {
cfg.rc_twopass_stats_in = stats; encode_frame(&codec, &raw, frame_count, 1, 0, VPX_DL_BEST_QUALITY,
} writer);
}
/* Open input file for this encoding pass */
if(!(infile = fopen(argv[3], "rb")))
die("Failed to open %s for reading", argv[3]);
/* Initialize codec */
if(vpx_codec_enc_init(&codec, interface, &cfg, 0))
die_codec(&codec, "Failed to initialize encoder");
frame_avail = 1;
got_data = 0;
while(frame_avail || got_data) {
vpx_codec_iter_t iter = NULL;
const vpx_codec_cx_pkt_t *pkt;
frame_avail = read_frame(infile, &raw);
if(vpx_codec_encode(&codec, frame_avail? &raw : NULL, frame_cnt,
1, flags, VPX_DL_BEST_QUALITY))
die_codec(&codec, "Failed to encode frame");
got_data = 0;
while( (pkt = vpx_codec_get_cx_data(&codec, &iter)) ) {
got_data = 1;
switch(pkt->kind) {
case VPX_CODEC_CX_FRAME_PKT:
write_ivf_frame_header(outfile, pkt);
(void) fwrite(pkt->data.frame.buf, 1, pkt->data.frame.sz,
outfile);
break;
case VPX_CODEC_STATS_PKT:
stats.buf = realloc(stats.buf, stats.sz
+ pkt->data.twopass_stats.sz);
if(!stats.buf)
die("Memory reallocation failed.\n");
memcpy((char*)stats.buf + stats.sz,
pkt->data.twopass_stats.buf,
pkt->data.twopass_stats.sz);
stats.sz += pkt->data.twopass_stats.sz;
break;
default:
break;
}
printf(pkt->kind == VPX_CODEC_CX_FRAME_PKT
&& (pkt->data.frame.flags & VPX_FRAME_IS_KEY)? "K":".");
fflush(stdout);
}
frame_cnt++;
}
printf("\n");
fclose(infile);
printf("Pass %d complete.\n", pass+1);
if(vpx_codec_destroy(&codec))
die_codec(&codec, "Failed to destroy codec");
} }
printf("Processed %d frames.\n",frame_cnt-1); if (pass == 0) {
vpx_img_free(&raw); get_frame_stats(&codec, NULL, frame_count, 1, 0, VPX_DL_BEST_QUALITY,
free(stats.buf); &stats);
} else {
printf("\n");
}
/* Try to rewrite the file header with the actual frame count */ fclose(infile);
if(!fseek(outfile, 0, SEEK_SET)) printf("Pass %d complete. Processed %d frames.\n", pass + 1, frame_count);
write_ivf_file_header(outfile, &cfg, frame_cnt-1); if (vpx_codec_destroy(&codec))
fclose(outfile); die_codec(&codec, "Failed to destroy codec.");
return EXIT_SUCCESS; }
vpx_img_free(&raw);
free(stats.buf);
vpx_video_writer_close(writer);
return EXIT_SUCCESS;
} }

22
tools_common.c
View File

@ -168,9 +168,31 @@ void vpx_img_write(const vpx_image_t *img, FILE *file) {
const int stride = img->stride[plane]; const int stride = img->stride[plane];
const int w = plane ? (img->d_w + 1) >> 1 : img->d_w; const int w = plane ? (img->d_w + 1) >> 1 : img->d_w;
const int h = plane ? (img->d_h + 1) >> 1 : img->d_h; const int h = plane ? (img->d_h + 1) >> 1 : img->d_h;
for (y = 0; y < h; ++y) { for (y = 0; y < h; ++y) {
fwrite(buf, 1, w, file); fwrite(buf, 1, w, file);
buf += stride; buf += stride;
} }
} }
} }
int vpx_img_read(vpx_image_t *img, FILE *file) {
int plane;
for (plane = 0; plane < 3; ++plane) {
unsigned char *buf = img->planes[plane];
const int stride = img->stride[plane];
const int w = plane ? (img->d_w + 1) >> 1 : img->d_w;
const int h = plane ? (img->d_h + 1) >> 1 : img->d_h;
int y;
for (y = 0; y < h; ++y) {
if (fread(buf, 1, w, file) != w)
return 0;
buf += stride;
}
}
return 1;
}

4
tools_common.h
View File

@ -129,6 +129,10 @@ vpx_codec_iface_t *get_codec_interface(unsigned int fourcc);
// of vpx_image_t support // of vpx_image_t support
void vpx_img_write(const vpx_image_t *img, FILE *file); void vpx_img_write(const vpx_image_t *img, FILE *file);
// TODO(dkovalev): move this function to vpx_image.{c, h}, so it will be part
// of vpx_image_t support
int vpx_img_read(vpx_image_t *img, FILE *file);
#ifdef __cplusplus #ifdef __cplusplus
} /* extern "C" */ } /* extern "C" */
#endif #endif