Merge "Cleaning up {simple, twopass}_encoder examples."
This commit is contained in:
Dmitry Kovalev
Gerrit Code Review
Коммит
c761bd78fa
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@ -107,6 +107,10 @@ simple_encoder.SRCS += video_writer.h video_writer.c
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simple_encoder.GUID = 4607D299-8A71-4D2C-9B1D-071899B6FBFD
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simple_encoder.DESCRIPTION = Simplified encoder loop
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EXAMPLES-$(CONFIG_VP8_ENCODER) += twopass_encoder.c
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twopass_encoder.SRCS += ivfenc.h ivfenc.c
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twopass_encoder.SRCS += tools_common.h tools_common.c
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twopass_encoder.SRCS += video_common.h
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twopass_encoder.SRCS += video_writer.h video_writer.c
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twopass_encoder.GUID = 73494FA6-4AF9-4763-8FBB-265C92402FD8
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twopass_encoder.DESCRIPTION = Two-pass encoder loop
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EXAMPLES-$(CONFIG_VP8_ENCODER) += force_keyframe.c
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@ -86,7 +86,6 @@
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#include <string.h>
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#define VPX_CODEC_DISABLE_COMPAT 1
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#include "vpx/vp8cx.h"
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#include "vpx/vpx_encoder.h"
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@ -102,33 +101,17 @@ void usage_exit() {
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exit(EXIT_FAILURE);
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}
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static int read_frame(FILE *f, vpx_image_t *img) {
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int res = 1;
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size_t to_read = img->w * img->h * 3 / 2;
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size_t nbytes = fread(img->planes[0], 1, to_read, f);
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if (nbytes != to_read) {
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res = 0;
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if (nbytes > 0)
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printf("Warning: Read partial frame. Check your width & height!\n");
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}
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return res;
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}
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static int is_valid_dimension(int value) {
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return value >= 16 && (value % 2 == 0);
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}
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int main(int argc, char **argv) {
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FILE *infile;
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FILE *infile = NULL;
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vpx_codec_ctx_t codec;
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vpx_codec_enc_cfg_t cfg;
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int frame_count = 0;
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vpx_image_t raw;
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vpx_codec_err_t res;
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VpxVideoInfo info;
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VpxVideoWriter *writer;
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const int fps = 30; // TODO(dkovalev) add command line argument
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const int bitrate = 100; // kbit/s TODO(dkovalev) add command line argument
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VpxVideoInfo info = {0};
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VpxVideoWriter *writer = NULL;
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const int fps = 30; // TODO(dkovalev) add command line argument
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const int bitrate = 200; // kbit/s TODO(dkovalev) add command line argument
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exec_name = argv[0];
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@ -141,21 +124,23 @@ int main(int argc, char **argv) {
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info.time_base.numerator = 1;
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info.time_base.denominator = fps;
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if (!is_valid_dimension(info.frame_width) ||
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!is_valid_dimension(info.frame_height))
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die("Invalid resolution: %dx%d", info.frame_width, info.frame_height);
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if (info.frame_width <= 0 ||
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info.frame_height <= 0 ||
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(info.frame_width % 2) != 0 ||
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(info.frame_height % 2) != 0) {
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die("Invalid frame size: %dx%d", info.frame_width, info.frame_height);
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}
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if (!vpx_img_alloc(&raw, VPX_IMG_FMT_I420, info.frame_width,
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info.frame_height, 1))
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die("Failed to allocate image");
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info.frame_height, 1)) {
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die("Failed to allocate image.");
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}
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printf("Using %s\n", vpx_codec_iface_name(interface));
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res = vpx_codec_enc_config_default(interface, &cfg, 0);
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if (res) {
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printf("Failed to get config: %s\n", vpx_codec_err_to_string(res));
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return EXIT_FAILURE;
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}
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if (res)
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die_codec(&codec, "Failed to get default codec config.");
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cfg.g_w = info.frame_width;
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cfg.g_h = info.frame_height;
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@ -167,25 +152,23 @@ int main(int argc, char **argv) {
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if (!writer)
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die("Failed to open %s for writing.", argv[4]);
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// Open input file for this encoding pass
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if (!(infile = fopen(argv[3], "rb")))
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die("Failed to open %s for reading.", argv[3]);
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// Initialize codec
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if (vpx_codec_enc_init(&codec, interface, &cfg, 0))
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die_codec(&codec, "Failed to initialize encoder");
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while (read_frame(infile, &raw)) {
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while (vpx_img_read(&raw, infile)) {
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vpx_codec_iter_t iter = NULL;
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const vpx_codec_cx_pkt_t *pkt = NULL;
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++frame_count;
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res = vpx_codec_encode(&codec, &raw, frame_count, 1, 0,
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VPX_DL_GOOD_QUALITY);
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if (res != VPX_CODEC_OK)
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die_codec(&codec, "Failed to encode frame");
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++frame_count;
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while ((pkt = vpx_codec_get_cx_data(&codec, &iter)) != NULL) {
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if (pkt->kind == VPX_CODEC_CX_FRAME_PKT) {
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const int keyframe = (pkt->data.frame.flags & VPX_FRAME_IS_KEY) != 0;
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@ -195,14 +178,14 @@ int main(int argc, char **argv) {
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pkt->data.frame.pts))
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die_codec(&codec, "Failed to write compressed frame.");
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printf(keyframe ? "K" : ".");
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fflush(stdout);
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}
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}
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}
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printf("\n");
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fclose(infile);
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printf("Processed %d frames.\n", frame_count);
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vpx_img_free(&raw);
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if (vpx_codec_destroy(&codec))
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die_codec(&codec, "Failed to destroy codec.");
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@ -50,218 +50,172 @@
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#include <stdio.h>
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#include <stdlib.h>
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#include <stdarg.h>
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#include <string.h>
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#define VPX_CODEC_DISABLE_COMPAT 1
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#include "vpx/vpx_encoder.h"
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#include "vpx/vp8cx.h"
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#include "vpx/vpx_encoder.h"
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#include "./tools_common.h"
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#include "./video_writer.h"
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#define interface (vpx_codec_vp8_cx())
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#define fourcc 0x30385056
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#define IVF_FILE_HDR_SZ (32)
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#define IVF_FRAME_HDR_SZ (12)
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static const char *exec_name;
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static void mem_put_le16(char *mem, unsigned int val) {
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mem[0] = val;
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mem[1] = val>>8;
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void usage_exit() {
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fprintf(stderr, "Usage: %s <width> <height> <infile> <outfile>\n", exec_name);
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exit(EXIT_FAILURE);
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}
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static void mem_put_le32(char *mem, unsigned int val) {
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mem[0] = val;
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mem[1] = val>>8;
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mem[2] = val>>16;
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mem[3] = val>>24;
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}
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static void get_frame_stats(vpx_codec_ctx_t *ctx,
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const vpx_image_t *img,
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vpx_codec_pts_t pts,
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uint64_t duration,
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vpx_enc_frame_flags_t flags,
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uint64_t deadline,
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vpx_fixed_buf_t *stats) {
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vpx_codec_iter_t iter = NULL;
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const vpx_codec_cx_pkt_t *pkt = NULL;
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const vpx_codec_err_t res = vpx_codec_encode(ctx, img, pts, duration, flags,
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deadline);
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if (res != VPX_CODEC_OK)
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die_codec(ctx, "Failed to get frame stats.");
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static void die(const char *fmt, ...) {
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va_list ap;
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va_start(ap, fmt);
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vprintf(fmt, ap);
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if(fmt[strlen(fmt)-1] != '\n')
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printf("\n");
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exit(EXIT_FAILURE);
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}
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static void die_codec(vpx_codec_ctx_t *ctx, const char *s) {
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const char *detail = vpx_codec_error_detail(ctx);
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printf("%s: %s\n", s, vpx_codec_error(ctx));
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if(detail)
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printf(" %s\n",detail);
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exit(EXIT_FAILURE);
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}
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static int read_frame(FILE *f, vpx_image_t *img) {
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size_t nbytes, to_read;
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int res = 1;
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to_read = img->w*img->h*3/2;
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nbytes = fread(img->planes[0], 1, to_read, f);
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if(nbytes != to_read) {
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res = 0;
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if(nbytes > 0)
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printf("Warning: Read partial frame. Check your width & height!\n");
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while ((pkt = vpx_codec_get_cx_data(ctx, &iter)) != NULL) {
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if (pkt->kind == VPX_CODEC_STATS_PKT) {
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const uint8_t *const pkt_buf = pkt->data.twopass_stats.buf;
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const size_t pkt_size = pkt->data.twopass_stats.sz;
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stats->buf = realloc(stats->buf, stats->sz + pkt_size);
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memcpy((uint8_t *)stats->buf + stats->sz, pkt_buf, pkt_size);
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stats->sz += pkt_size;
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}
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return res;
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}
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}
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static void write_ivf_file_header(FILE *outfile,
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const vpx_codec_enc_cfg_t *cfg,
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int frame_cnt) {
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char header[32];
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static void encode_frame(vpx_codec_ctx_t *ctx,
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const vpx_image_t *img,
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vpx_codec_pts_t pts,
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uint64_t duration,
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vpx_enc_frame_flags_t flags,
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uint64_t deadline,
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VpxVideoWriter *writer) {
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vpx_codec_iter_t iter = NULL;
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const vpx_codec_cx_pkt_t *pkt = NULL;
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const vpx_codec_err_t res = vpx_codec_encode(ctx, img, pts, duration, flags,
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deadline);
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if (res != VPX_CODEC_OK)
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die_codec(ctx, "Failed to encode frame.");
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if(cfg->g_pass != VPX_RC_ONE_PASS && cfg->g_pass != VPX_RC_LAST_PASS)
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return;
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header[0] = 'D';
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header[1] = 'K';
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header[2] = 'I';
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header[3] = 'F';
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mem_put_le16(header+4, 0); /* version */
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mem_put_le16(header+6, 32); /* headersize */
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mem_put_le32(header+8, fourcc); /* headersize */
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mem_put_le16(header+12, cfg->g_w); /* width */
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mem_put_le16(header+14, cfg->g_h); /* height */
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mem_put_le32(header+16, cfg->g_timebase.den); /* rate */
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mem_put_le32(header+20, cfg->g_timebase.num); /* scale */
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mem_put_le32(header+24, frame_cnt); /* length */
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mem_put_le32(header+28, 0); /* unused */
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while ((pkt = vpx_codec_get_cx_data(ctx, &iter)) != NULL) {
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if (pkt->kind == VPX_CODEC_CX_FRAME_PKT) {
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const int keyframe = (pkt->data.frame.flags & VPX_FRAME_IS_KEY) != 0;
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(void) fwrite(header, 1, 32, outfile);
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}
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static void write_ivf_frame_header(FILE *outfile,
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const vpx_codec_cx_pkt_t *pkt)
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{
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char header[12];
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vpx_codec_pts_t pts;
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if(pkt->kind != VPX_CODEC_CX_FRAME_PKT)
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return;
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pts = pkt->data.frame.pts;
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mem_put_le32(header, pkt->data.frame.sz);
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mem_put_le32(header+4, pts&0xFFFFFFFF);
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mem_put_le32(header+8, pts >> 32);
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(void) fwrite(header, 1, 12, outfile);
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if (!vpx_video_writer_write_frame(writer, pkt->data.frame.buf,
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pkt->data.frame.sz,
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pkt->data.frame.pts))
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die_codec(ctx, "Failed to write compressed frame.");
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printf(keyframe ? "K" : ".");
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fflush(stdout);
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}
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}
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}
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int main(int argc, char **argv) {
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FILE *infile, *outfile;
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vpx_codec_ctx_t codec;
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vpx_codec_enc_cfg_t cfg;
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int frame_cnt = 0;
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vpx_image_t raw;
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vpx_codec_err_t res;
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long width;
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long height;
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int frame_avail;
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int got_data;
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int flags = 0;
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int pass;
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vpx_fixed_buf_t stats = {0};
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FILE *infile = NULL;
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VpxVideoWriter *writer = NULL;
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vpx_codec_ctx_t codec;
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vpx_codec_enc_cfg_t cfg;
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vpx_image_t raw;
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vpx_codec_err_t res;
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vpx_fixed_buf_t stats = {0};
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VpxVideoInfo info = {0};
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int pass;
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const int fps = 30; // TODO(dkovalev) add command line argument
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const int bitrate = 200; // kbit/s TODO(dkovalev) add command line argument
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/* Open files */
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if(argc!=5)
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die("Usage: %s <width> <height> <infile> <outfile>\n", argv[0]);
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width = strtol(argv[1], NULL, 0);
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height = strtol(argv[2], NULL, 0);
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if(width < 16 || width%2 || height <16 || height%2)
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die("Invalid resolution: %ldx%ld", width, height);
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if(!vpx_img_alloc(&raw, VPX_IMG_FMT_I420, width, height, 1))
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die("Faile to allocate image", width, height);
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if(!(outfile = fopen(argv[4], "wb")))
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die("Failed to open %s for writing", argv[4]);
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if (argc != 5)
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die("Invalid number of arguments.");
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printf("Using %s\n",vpx_codec_iface_name(interface));
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info.codec_fourcc = VP8_FOURCC;
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info.time_base.numerator = 1;
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info.time_base.denominator = fps;
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info.frame_width = strtol(argv[1], NULL, 0);
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info.frame_height = strtol(argv[2], NULL, 0);
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/* Populate encoder configuration */
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res = vpx_codec_enc_config_default(interface, &cfg, 0);
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if(res) {
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printf("Failed to get config: %s\n", vpx_codec_err_to_string(res));
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return EXIT_FAILURE;
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if (info.frame_width <= 0 ||
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info.frame_height <= 0 ||
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(info.frame_width % 2) != 0 ||
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(info.frame_height % 2) != 0) {
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die("Invalid frame size: %dx%d", info.frame_width, info.frame_height);
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}
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if (!vpx_img_alloc(&raw, VPX_IMG_FMT_I420, info.frame_width,
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info.frame_height, 1)) {
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die("Failed to allocate image", info.frame_width, info.frame_height);
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}
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writer = vpx_video_writer_open(argv[4], kContainerIVF, &info);
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if (!writer)
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die("Failed to open %s for writing", argv[4]);
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printf("Using %s\n", vpx_codec_iface_name(interface));
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res = vpx_codec_enc_config_default(interface, &cfg, 0);
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if (res)
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die_codec(&codec, "Failed to get default codec config.");
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cfg.g_w = info.frame_width;
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cfg.g_h = info.frame_height;
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cfg.g_timebase.num = info.time_base.numerator;
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cfg.g_timebase.den = info.time_base.denominator;
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cfg.rc_target_bitrate = bitrate;
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for (pass = 0; pass < 2; ++pass) {
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int frame_count = 0;
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if (pass == 0) {
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cfg.g_pass = VPX_RC_FIRST_PASS;
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} else {
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cfg.g_pass = VPX_RC_LAST_PASS;
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cfg.rc_twopass_stats_in = stats;
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}
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/* Update the default configuration with our settings */
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cfg.rc_target_bitrate = width * height * cfg.rc_target_bitrate
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/ cfg.g_w / cfg.g_h;
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cfg.g_w = width;
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cfg.g_h = height;
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if (!(infile = fopen(argv[3], "rb")))
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die("Failed to open %s for reading", argv[3]);
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write_ivf_file_header(outfile, &cfg, 0);
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if (vpx_codec_enc_init(&codec, interface, &cfg, 0))
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die_codec(&codec, "Failed to initialize encoder");
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for(pass=0; pass<2; pass++) {
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frame_cnt = 0;
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while (vpx_img_read(&raw, infile)) {
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++frame_count;
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if(pass == 0)
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cfg.g_pass = VPX_RC_FIRST_PASS;
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else {
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cfg.g_pass = VPX_RC_LAST_PASS;
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cfg.rc_twopass_stats_in = stats;
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}
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/* Open input file for this encoding pass */
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if(!(infile = fopen(argv[3], "rb")))
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die("Failed to open %s for reading", argv[3]);
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/* Initialize codec */
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if(vpx_codec_enc_init(&codec, interface, &cfg, 0))
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die_codec(&codec, "Failed to initialize encoder");
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frame_avail = 1;
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got_data = 0;
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while(frame_avail || got_data) {
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vpx_codec_iter_t iter = NULL;
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const vpx_codec_cx_pkt_t *pkt;
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frame_avail = read_frame(infile, &raw);
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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");
|
||||
if (pass == 0) {
|
||||
get_frame_stats(&codec, &raw, frame_count, 1, 0, VPX_DL_BEST_QUALITY,
|
||||
&stats);
|
||||
} else {
|
||||
encode_frame(&codec, &raw, frame_count, 1, 0, VPX_DL_BEST_QUALITY,
|
||||
writer);
|
||||
}
|
||||
}
|
||||
|
||||
printf("Processed %d frames.\n",frame_cnt-1);
|
||||
vpx_img_free(&raw);
|
||||
free(stats.buf);
|
||||
if (pass == 0) {
|
||||
get_frame_stats(&codec, NULL, frame_count, 1, 0, VPX_DL_BEST_QUALITY,
|
||||
&stats);
|
||||
} else {
|
||||
printf("\n");
|
||||
}
|
||||
|
||||
/* Try to rewrite the file header with the actual frame count */
|
||||
if(!fseek(outfile, 0, SEEK_SET))
|
||||
write_ivf_file_header(outfile, &cfg, frame_cnt-1);
|
||||
fclose(outfile);
|
||||
return EXIT_SUCCESS;
|
||||
fclose(infile);
|
||||
printf("Pass %d complete. Processed %d frames.\n", pass + 1, frame_count);
|
||||
if (vpx_codec_destroy(&codec))
|
||||
die_codec(&codec, "Failed to destroy codec.");
|
||||
}
|
||||
|
||||
vpx_img_free(&raw);
|
||||
free(stats.buf);
|
||||
|
||||
vpx_video_writer_close(writer);
|
||||
|
||||
return EXIT_SUCCESS;
|
||||
}
|
||||
|
|
|
|||
|
|
@ -168,9 +168,31 @@ void vpx_img_write(const vpx_image_t *img, FILE *file) {
|
|||
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;
|
||||
|
||||
for (y = 0; y < h; ++y) {
|
||||
fwrite(buf, 1, w, file);
|
||||
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;
|
||||
}
|
||||
|
||||
|
|
|
|||
|
|
@ -129,6 +129,10 @@ vpx_codec_iface_t *get_codec_interface(unsigned int fourcc);
|
|||
// of vpx_image_t support
|
||||
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
|
||||
} /* extern "C" */
|
||||
#endif
|
||||
|
|
|
|||
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