2 * Copyright (c) 2010 The WebM project authors. All Rights Reserved.
4 * Use of this source code is governed by a BSD-style license
5 * that can be found in the LICENSE file in the root of the source
6 * tree. An additional intellectual property rights grant can be found
7 * in the file PATENTS. All contributing project authors may
8 * be found in the AUTHORS file in the root of the source tree.
19 #define VPX_CODEC_DISABLE_COMPAT 1
20 #include "vpx/vpx_encoder.h"
21 #include "vpx/vp8cx.h"
22 #define interface (vpx_codec_vp8_cx())
23 #define fourcc 0x30385056
26 #define IVF_FILE_HDR_SZ (32)
27 #define IVF_FRAME_HDR_SZ (12)
29 static void mem_put_le16(char *mem, unsigned int val) {
34 static void mem_put_le32(char *mem, unsigned int val) {
41 static void die(const char *fmt, ...) {
46 if(fmt[strlen(fmt)-1] != '\n')
53 static int read_frame(FILE *f, vpx_image_t *img) {
54 size_t nbytes, to_read;
57 to_read = img->w*img->h*3/2;
58 nbytes = fread(img->planes[0], 1, to_read, f);
59 if(nbytes != to_read) {
62 printf("Warning: Read partial frame. Check your width & height!\n");
67 static void write_ivf_file_header(FILE *outfile,
68 const vpx_codec_enc_cfg_t *cfg,
72 if(cfg->g_pass != VPX_RC_ONE_PASS && cfg->g_pass != VPX_RC_LAST_PASS)
78 mem_put_le16(header+4, 0); /* version */
79 mem_put_le16(header+6, 32); /* headersize */
80 mem_put_le32(header+8, fourcc); /* headersize */
81 mem_put_le16(header+12, cfg->g_w); /* width */
82 mem_put_le16(header+14, cfg->g_h); /* height */
83 mem_put_le32(header+16, cfg->g_timebase.den); /* rate */
84 mem_put_le32(header+20, cfg->g_timebase.num); /* scale */
85 mem_put_le32(header+24, frame_cnt); /* length */
86 mem_put_le32(header+28, 0); /* unused */
88 if(fwrite(header, 1, 32, outfile));
92 static void write_ivf_frame_header(FILE *outfile,
93 const vpx_codec_cx_pkt_t *pkt)
98 if(pkt->kind != VPX_CODEC_CX_FRAME_PKT)
101 pts = pkt->data.frame.pts;
102 mem_put_le32(header, pkt->data.frame.sz);
103 mem_put_le32(header+4, pts&0xFFFFFFFF);
104 mem_put_le32(header+8, pts >> 32);
106 if(fwrite(header, 1, 12, outfile));
109 int main(int argc, char **argv) {
110 FILE *infile, *outfile;
111 vpx_codec_ctx_t codec;
112 vpx_codec_enc_cfg_t cfg;
125 width = strtol(argv[1], NULL, 0);
126 height = strtol(argv[2], NULL, 0);
127 if(width < 16 || width%2 || height <16 || height%2)
128 die("Invalid resolution: %ldx%ld", width, height);
129 if(!vpx_img_alloc(&raw, VPX_IMG_FMT_I420, width, height, 1))
130 die("Faile to allocate image", width, height);
131 if(!(outfile = fopen(argv[4], "wb")))
132 die("Failed to open %s for writing", argv[4]);
134 printf("Using %s\n",vpx_codec_iface_name(interface));
141 write_ivf_file_header(outfile, &cfg, 0);
143 @@@@TWOPASS_LOOP_BEGIN
145 /* Open input file for this encoding pass */
146 if(!(infile = fopen(argv[3], "rb")))
147 die("Failed to open %s for reading", argv[3]);
153 while(frame_avail || got_data) {
154 vpx_codec_iter_t iter = NULL;
155 const vpx_codec_cx_pkt_t *pkt;
157 @@@@@@@@@@@@PER_FRAME_CFG
158 @@@@@@@@@@@@ENCODE_FRAME
160 while( (pkt = vpx_codec_get_cx_data(&codec, &iter)) ) {
163 @@@@@@@@@@@@@@@@PROCESS_FRAME
164 @@@@@@@@@@@@@@@@PROCESS_STATS
168 printf(pkt->kind == VPX_CODEC_CX_FRAME_PKT
169 && (pkt->data.frame.flags & VPX_FRAME_IS_KEY)? "K":".");
178 printf("Processed %d frames.\n",frame_cnt-1);
181 /* Try to rewrite the file header with the actual frame count */
182 if(!fseek(outfile, 0, SEEK_SET))
183 write_ivf_file_header(outfile, &cfg, frame_cnt-1);