18 #include "../tools_common.h" 19 #include "../video_writer.h" 21 static const char *exec_name;
23 void usage_exit(
void) {
24 fprintf(stderr,
"vp9_lossless_encoder: Example demonstrating VP9 lossless " 25 "encoding feature. Supports raw input only.\n");
26 fprintf(stderr,
"Usage: %s <width> <height> <infile> <outfile>\n", exec_name);
34 VpxVideoWriter *writer) {
41 die_codec(codec,
"Failed to encode frame");
48 if (!vpx_video_writer_write_frame(writer,
52 die_codec(codec,
"Failed to write compressed frame");
54 printf(keyframe ?
"K" :
".");
62 int main(
int argc,
char **argv) {
69 VpxVideoInfo info = {0};
70 VpxVideoWriter *writer = NULL;
71 const VpxInterface *encoder = NULL;
77 die(
"Invalid number of arguments");
79 encoder = get_vpx_encoder_by_name(
"vp9");
81 die(
"Unsupported codec.");
83 info.codec_fourcc = encoder->fourcc;
84 info.frame_width = strtol(argv[1], NULL, 0);
85 info.frame_height = strtol(argv[2], NULL, 0);
86 info.time_base.numerator = 1;
87 info.time_base.denominator = fps;
89 if (info.frame_width <= 0 ||
90 info.frame_height <= 0 ||
91 (info.frame_width % 2) != 0 ||
92 (info.frame_height % 2) != 0) {
93 die(
"Invalid frame size: %dx%d", info.frame_width, info.frame_height);
97 info.frame_height, 1)) {
98 die(
"Failed to allocate image.");
105 die_codec(&codec,
"Failed to get default codec config.");
107 cfg.
g_w = info.frame_width;
108 cfg.
g_h = info.frame_height;
112 writer = vpx_video_writer_open(argv[4], kContainerIVF, &info);
114 die(
"Failed to open %s for writing.", argv[4]);
116 if (!(infile = fopen(argv[3],
"rb")))
117 die(
"Failed to open %s for reading.", argv[3]);
120 die_codec(&codec,
"Failed to initialize encoder");
123 die_codec(&codec,
"Failed to use lossless mode");
126 while (vpx_img_read(&raw, infile)) {
127 encode_frame(&codec, &raw, frame_count++, 0, writer);
131 while (encode_frame(&codec, NULL, -1, 0, writer)) {}
135 printf(
"Processed %d frames.\n", frame_count);
139 die_codec(&codec,
"Failed to destroy codec.");
141 vpx_video_writer_close(writer);
Image Descriptor.
Definition: vpx_image.h:88
Describes the encoder algorithm interface to applications.
const char * vpx_codec_iface_name(vpx_codec_iface_t *iface)
Return the name for a given interface.
struct vpx_rational g_timebase
Stream timebase units.
Definition: vpx_encoder.h:397
int den
Definition: vpx_encoder.h:261
vpx_codec_err_t vpx_codec_encode(vpx_codec_ctx_t *ctx, const vpx_image_t *img, vpx_codec_pts_t pts, unsigned long duration, vpx_enc_frame_flags_t flags, unsigned long deadline)
Encode a frame.
Encoder configuration structure.
Definition: vpx_encoder.h:314
Encoder output packet.
Definition: vpx_encoder.h:195
struct vpx_codec_cx_pkt::@1::@2 frame
vpx_image_t * vpx_img_alloc(vpx_image_t *img, vpx_img_fmt_t fmt, unsigned int d_w, unsigned int d_h, unsigned int align)
Open a descriptor, allocating storage for the underlying image.
Definition: vpx_image.h:56
unsigned int g_w
Width of the frame.
Definition: vpx_encoder.h:357
unsigned int g_h
Height of the frame.
Definition: vpx_encoder.h:367
enum vpx_codec_cx_pkt_kind kind
Definition: vpx_encoder.h:196
Codec control function to set lossless encoding mode.
Definition: vp8cx.h:339
Operation completed without error.
Definition: vpx_codec.h:91
void vpx_img_free(vpx_image_t *img)
Close an image descriptor.
int num
Definition: vpx_encoder.h:260
#define VPX_DL_GOOD_QUALITY
Definition: vpx_encoder.h:914
Provides definitions for using VP8 or VP9 encoder algorithm within the vpx Codec Interface.
#define vpx_codec_enc_init(ctx, iface, cfg, flags)
Convenience macro for vpx_codec_enc_init_ver()
Definition: vpx_encoder.h:813
vpx_codec_err_t
Algorithm return codes.
Definition: vpx_codec.h:89
const vpx_codec_cx_pkt_t * vpx_codec_get_cx_data(vpx_codec_ctx_t *ctx, vpx_codec_iter_t *iter)
Encoded data iterator.
union vpx_codec_cx_pkt::@1 data
vpx_codec_err_t vpx_codec_enc_config_default(vpx_codec_iface_t *iface, vpx_codec_enc_cfg_t *cfg, unsigned int reserved)
Get a default configuration.
vpx_codec_err_t vpx_codec_control_(vpx_codec_ctx_t *ctx, int ctrl_id,...)
Control algorithm.
vpx_codec_err_t vpx_codec_destroy(vpx_codec_ctx_t *ctx)
Destroy a codec instance.
#define VPX_FRAME_IS_KEY
Definition: vpx_encoder.h:130
const void * vpx_codec_iter_t
Iterator.
Definition: vpx_codec.h:188
Definition: vpx_encoder.h:176
Codec context structure.
Definition: vpx_codec.h:199