18 #include "common/tools_common.h"
19 #include "common/video_writer.h"
21 static const char *exec_name;
23 void usage_exit(
void) {
25 "lossless_encoder: Example demonstrating lossless "
26 "encoding feature. Supports raw input only.\n");
27 fprintf(stderr,
"Usage: %s <width> <height> <infile> <outfile>\n", exec_name);
32 int frame_index,
int flags, AvxVideoWriter *writer) {
38 if (res !=
AOM_CODEC_OK) die_codec(codec,
"Failed to encode frame");
45 if (!aom_video_writer_write_frame(writer, pkt->
data.
frame.buf,
48 die_codec(codec,
"Failed to write compressed frame");
50 printf(keyframe ?
"K" :
".");
58 int main(
int argc,
char **argv) {
66 AvxVideoWriter *writer = NULL;
67 const AvxInterface *encoder = NULL;
74 memset(&info, 0,
sizeof(info));
76 if (argc < 5) die(
"Invalid number of arguments");
78 encoder = get_aom_encoder_by_name(
"av1");
79 if (!encoder) die(
"Unsupported codec.");
81 info.codec_fourcc = encoder->fourcc;
82 info.frame_width = (int)strtol(argv[1], NULL, 0);
83 info.frame_height = (int)strtol(argv[2], NULL, 0);
84 info.time_base.numerator = 1;
85 info.time_base.denominator = fps;
87 if (info.frame_width <= 0 || info.frame_height <= 0 ||
88 (info.frame_width % 2) != 0 || (info.frame_height % 2) != 0) {
89 die(
"Invalid frame size: %dx%d", info.frame_width, info.frame_height);
93 info.frame_height, 1)) {
94 die(
"Failed to allocate image.");
100 if (res) die_codec(&codec,
"Failed to get default codec config.");
102 cfg.
g_w = info.frame_width;
103 cfg.
g_h = info.frame_height;
107 writer = aom_video_writer_open(argv[4], kContainerIVF, &info);
108 if (!writer) die(
"Failed to open %s for writing.", argv[4]);
110 if (!(infile = fopen(argv[3],
"rb")))
111 die(
"Failed to open %s for reading.", argv[3]);
114 die_codec(&codec,
"Failed to initialize encoder");
117 die_codec(&codec,
"Failed to use lossless mode");
120 while (aom_img_read(&raw, infile)) {
121 encode_frame(&codec, &raw, frame_count++, 0, writer);
125 while (encode_frame(&codec, NULL, -1, 0, writer)) {
130 printf(
"Processed %d frames.\n", frame_count);
135 aom_video_writer_close(writer);
Describes the encoder algorithm interface to applications.
aom_image_t * aom_img_alloc(aom_image_t *img, aom_img_fmt_t fmt, unsigned int d_w, unsigned int d_h, unsigned int align)
Open a descriptor, allocating storage for the underlying image.
@ AOM_IMG_FMT_I420
Definition: aom_image.h:45
void aom_img_free(aom_image_t *img)
Close an image descriptor.
Provides definitions for using AOM or AV1 encoder algorithm within the aom Codec Interface.
@ AV1E_SET_LOSSLESS
Codec control function to set lossless encoding mode, unsigned int parameter.
Definition: aomcx.h:316
const char * aom_codec_iface_name(aom_codec_iface_t *iface)
Return the name for a given interface.
aom_codec_err_t aom_codec_destroy(aom_codec_ctx_t *ctx)
Destroy a codec instance.
aom_codec_err_t
Algorithm return codes.
Definition: aom_codec.h:101
#define AOM_CODEC_CONTROL_TYPECHECKED(ctx, id, data)
aom_codec_control wrapper macro (adds type-checking, less flexible)
Definition: aom_codec.h:426
const void * aom_codec_iter_t
Iterator.
Definition: aom_codec.h:209
@ AOM_CODEC_OK
Operation completed without error.
Definition: aom_codec.h:103
aom_codec_err_t aom_codec_encode(aom_codec_ctx_t *ctx, const aom_image_t *img, aom_codec_pts_t pts, unsigned long duration, aom_enc_frame_flags_t flags)
Encode a frame.
#define aom_codec_enc_init(ctx, iface, cfg, flags)
Convenience macro for aom_codec_enc_init_ver()
Definition: aom_encoder.h:941
aom_codec_err_t aom_codec_enc_config_default(aom_codec_iface_t *iface, aom_codec_enc_cfg_t *cfg, unsigned int usage)
Get the default configuration for a usage.
const aom_codec_cx_pkt_t * aom_codec_get_cx_data(aom_codec_ctx_t *ctx, aom_codec_iter_t *iter)
Encoded data iterator.
#define AOM_FRAME_IS_KEY
Definition: aom_encoder.h:89
@ AOM_CODEC_CX_FRAME_PKT
Definition: aom_encoder.h:119
Codec context structure.
Definition: aom_codec.h:219
Encoder output packet.
Definition: aom_encoder.h:131
enum aom_codec_cx_pkt_kind kind
Definition: aom_encoder.h:132
union aom_codec_cx_pkt::@1 data
struct aom_codec_cx_pkt::@1::@2 frame
Encoder configuration structure.
Definition: aom_encoder.h:369
struct aom_rational g_timebase
Stream timebase units.
Definition: aom_encoder.h:466
unsigned int g_h
Height of the frame.
Definition: aom_encoder.h:417
unsigned int g_w
Width of the frame.
Definition: aom_encoder.h:408
Image Descriptor.
Definition: aom_image.h:171
int num
Definition: aom_encoder.h:172
int den
Definition: aom_encoder.h:173