*/
/**
- * @file xvidmpeg4.c
+ * @file
* Interface to xvidcore for MPEG-4 compliant encoding.
* @author Adam Thayer (krevnik@comcast.net)
*/
+/* needed for mkstemp() */
+#define _XOPEN_SOURCE 600
+
#include <xvid.h>
#include <unistd.h>
#include "avcodec.h"
+#include "libavutil/cpu.h"
+#include "libavutil/intreadwrite.h"
#include "libxvid_internal.h"
+#if !HAVE_MKSTEMP
+#include <fcntl.h>
+#endif
/**
* Buffer management macros.
#define BUFFER_REMAINING(x) (BUFFER_SIZE - strlen(x))
#define BUFFER_CAT(x) (&((x)[strlen(x)]))
-/* For PPC Use */
-int has_altivec(void);
-
/**
* Structure for the private Xvid context.
* This stores all the private context for the codec.
*/
struct xvid_context {
- void *encoder_handle; /** Handle for Xvid encoder */
- int xsize, ysize; /** Frame size */
- int vop_flags; /** VOP flags for Xvid encoder */
- int vol_flags; /** VOL flags for Xvid encoder */
- int me_flags; /** Motion Estimation flags */
- int qscale; /** Do we use constant scale? */
- int quicktime_format; /** Are we in a QT-based format? */
- AVFrame encoded_picture; /** Encoded frame information */
- char *twopassbuffer; /** Character buffer for two-pass */
- char *old_twopassbuffer; /** Old character buffer (two-pass) */
- char *twopassfile; /** second pass temp file name */
- unsigned char *intra_matrix; /** P-Frame Quant Matrix */
- unsigned char *inter_matrix; /** I-Frame Quant Matrix */
+ void *encoder_handle; /**< Handle for Xvid encoder */
+ int xsize; /**< Frame x size */
+ int ysize; /**< Frame y size */
+ int vop_flags; /**< VOP flags for Xvid encoder */
+ int vol_flags; /**< VOL flags for Xvid encoder */
+ int me_flags; /**< Motion Estimation flags */
+ int qscale; /**< Do we use constant scale? */
+ int quicktime_format; /**< Are we in a QT-based format? */
+ AVFrame encoded_picture; /**< Encoded frame information */
+ char *twopassbuffer; /**< Character buffer for two-pass */
+ char *old_twopassbuffer; /**< Old character buffer (two-pass) */
+ char *twopassfile; /**< second pass temp file name */
+ unsigned char *intra_matrix; /**< P-Frame Quant Matrix */
+ unsigned char *inter_matrix; /**< I-Frame Quant Matrix */
};
/**
* Structure for the private first-pass plugin.
*/
struct xvid_ff_pass1 {
- int version; /** Xvid version */
- struct xvid_context *context; /** Pointer to private context */
+ int version; /**< Xvid version */
+ struct xvid_context *context; /**< Pointer to private context */
};
/* Prototypes - See function implementation for details */
int xvid_ff_2pass(void *ref, int opt, void *p1, void *p2);
void xvid_correct_framerate(AVCodecContext *avctx);
+/* Wrapper to work around the lack of mkstemp() on mingw.
+ * Also, tries to create file in /tmp first, if possible.
+ * *prefix can be a character constant; *filename will be allocated internally.
+ * @return file descriptor of opened file (or -1 on error)
+ * and opened file name in **filename. */
+int ff_tempfile(const char *prefix, char **filename) {
+ int fd=-1;
+#if !HAVE_MKSTEMP
+ *filename = tempnam(".", prefix);
+#else
+ size_t len = strlen(prefix) + 12; /* room for "/tmp/" and "XXXXXX\0" */
+ *filename = av_malloc(len);
+#endif
+ /* -----common section-----*/
+ if (*filename == NULL) {
+ av_log(NULL, AV_LOG_ERROR, "ff_tempfile: Cannot allocate file name\n");
+ return -1;
+ }
+#if !HAVE_MKSTEMP
+ fd = open(*filename, O_RDWR | O_BINARY | O_CREAT, 0444);
+#else
+ snprintf(*filename, len, "/tmp/%sXXXXXX", prefix);
+ fd = mkstemp(*filename);
+ if (fd < 0) {
+ snprintf(*filename, len, "./%sXXXXXX", prefix);
+ fd = mkstemp(*filename);
+ }
+#endif
+ /* -----common section-----*/
+ if (fd < 0) {
+ av_log(NULL, AV_LOG_ERROR, "ff_tempfile: Cannot open temporary file %s\n", *filename);
+ return -1;
+ }
+ return fd; /* success */
+}
+
+#if CONFIG_LIBXVID_ENCODER
+
/**
- * Creates the private context for the encoder.
+ * Create the private context for the encoder.
* All buffers are allocated, settings are loaded from the user,
* and the encoder context created.
*
* @param avctx AVCodecContext pointer to context
* @return Returns 0 on success, -1 on failure
*/
-av_cold int ff_xvid_encode_init(AVCodecContext *avctx) {
+static av_cold int xvid_encode_init(AVCodecContext *avctx) {
int xerr, i;
int xvid_flags = avctx->flags;
struct xvid_context *x = avctx->priv_data;
xvid_gbl_init.version = XVID_VERSION;
xvid_gbl_init.debug = 0;
-#ifdef ARCH_PPC
+#if ARCH_PPC
/* Xvid's PPC support is borked, use libavcodec to detect */
-#ifdef HAVE_ALTIVEC
- if( has_altivec() ) {
+#if HAVE_ALTIVEC
+ if (av_get_cpu_flags() & AV_CPU_FLAG_ALTIVEC) {
xvid_gbl_init.cpu_flags = XVID_CPU_FORCE | XVID_CPU_ALTIVEC;
} else
#endif
rc2pass2.version = XVID_VERSION;
rc2pass2.bitrate = avctx->bit_rate;
- fd = av_tempfile("xvidff.", &(x->twopassfile));
+ fd = ff_tempfile("xvidff.", &(x->twopassfile));
if( fd == -1 ) {
av_log(avctx, AV_LOG_ERROR,
"Xvid: Cannot write 2-pass pipe\n");
/* We are claiming to be Xvid */
x->quicktime_format = 0;
if(!avctx->codec_tag)
- avctx->codec_tag = ff_get_fourcc("xvid");
+ avctx->codec_tag = AV_RL32("xvid");
}
/* Bframes */
}
/**
- * Encodes a single frame.
+ * Encode a single frame.
*
* @param avctx AVCodecContext pointer to context
* @param frame Pointer to encoded frame buffer
* @param data Pointer to AVFrame of unencoded frame
* @return Returns 0 on success, -1 on failure
*/
-int ff_xvid_encode_frame(AVCodecContext *avctx,
+static int xvid_encode_frame(AVCodecContext *avctx,
unsigned char *frame, int buf_size, void *data) {
int xerr, i;
char *tmp;
xvid_enc_frame.vop_flags = x->vop_flags;
xvid_enc_frame.vol_flags = x->vol_flags;
xvid_enc_frame.motion = x->me_flags;
- xvid_enc_frame.type = XVID_TYPE_AUTO;
+ xvid_enc_frame.type =
+ picture->pict_type == AV_PICTURE_TYPE_I ? XVID_TYPE_IVOP :
+ picture->pict_type == AV_PICTURE_TYPE_P ? XVID_TYPE_PVOP :
+ picture->pict_type == AV_PICTURE_TYPE_B ? XVID_TYPE_BVOP :
+ XVID_TYPE_AUTO;
/* Pixel aspect ratio setting */
- if (avctx->sample_aspect_ratio.num < 1 || avctx->sample_aspect_ratio.num > 255 ||
- avctx->sample_aspect_ratio.den < 1 || avctx->sample_aspect_ratio.den > 255) {
+ if (avctx->sample_aspect_ratio.num < 0 || avctx->sample_aspect_ratio.num > 255 ||
+ avctx->sample_aspect_ratio.den < 0 || avctx->sample_aspect_ratio.den > 255) {
av_log(avctx, AV_LOG_ERROR, "Invalid pixel aspect ratio %i/%i\n",
avctx->sample_aspect_ratio.num, avctx->sample_aspect_ratio.den);
return -1;
if( 0 <= xerr ) {
p->quality = xvid_enc_stats.quant * FF_QP2LAMBDA;
if( xvid_enc_stats.type == XVID_TYPE_PVOP )
- p->pict_type = FF_P_TYPE;
+ p->pict_type = AV_PICTURE_TYPE_P;
else if( xvid_enc_stats.type == XVID_TYPE_BVOP )
- p->pict_type = FF_B_TYPE;
+ p->pict_type = AV_PICTURE_TYPE_B;
else if( xvid_enc_stats.type == XVID_TYPE_SVOP )
- p->pict_type = FF_S_TYPE;
+ p->pict_type = AV_PICTURE_TYPE_S;
else
- p->pict_type = FF_I_TYPE;
+ p->pict_type = AV_PICTURE_TYPE_I;
if( xvid_enc_frame.out_flags & XVID_KEYFRAME ) {
p->key_frame = 1;
if( x->quicktime_format )
}
/**
- * Destroys the private context for the encoder.
+ * Destroy the private context for the encoder.
* All buffers are freed, and the Xvid encoder context is destroyed.
*
* @param avctx AVCodecContext pointer to context
* @return Returns 0, success guaranteed
*/
-av_cold int ff_xvid_encode_close(AVCodecContext *avctx) {
+static av_cold int xvid_encode_close(AVCodecContext *avctx) {
struct xvid_context *x = avctx->priv_data;
xvid_encore(x->encoder_handle, XVID_ENC_DESTROY, NULL, NULL);
- if( avctx->extradata != NULL )
- av_free(avctx->extradata);
+ av_freep(&avctx->extradata);
if( x->twopassbuffer != NULL ) {
av_free(x->twopassbuffer);
av_free(x->old_twopassbuffer);
}
- if( x->twopassfile != NULL )
- av_free(x->twopassfile);
- if( x->intra_matrix != NULL )
- av_free(x->intra_matrix);
- if( x->inter_matrix != NULL )
- av_free(x->inter_matrix);
+ av_free(x->twopassfile);
+ av_free(x->intra_matrix);
+ av_free(x->inter_matrix);
return 0;
}
frate = avctx->time_base.den;
fbase = avctx->time_base.num;
- gcd = ff_gcd(frate, fbase);
+ gcd = av_gcd(frate, fbase);
if( gcd > 1 ) {
frate /= gcd;
fbase /= gcd;
} else
est_fbase = 1;
- gcd = ff_gcd(est_frate, est_fbase);
+ gcd = av_gcd(est_frate, est_fbase);
if( gcd > 1 ) {
est_frate /= gcd;
est_fbase /= gcd;
*/
/**
- * Initializes the two-pass plugin and context.
+ * Initialize the two-pass plugin and context.
*
* @param param Input construction parameter structure
* @param handle Private context handle
}
/**
- * Destroys the two-pass plugin context.
+ * Destroy the two-pass plugin context.
*
* @param ref Context pointer for the plugin
* @param param Destrooy context
}
/**
- * Enables fast encode mode during the first pass.
+ * Enable fast encode mode during the first pass.
*
* @param ref Context pointer for the plugin
* @param param Frame data
}
/**
- * Captures statistic data and writes it during first pass.
+ * Capture statistic data and write it during first pass.
*
* @param ref Context pointer for the plugin
* @param param Statistic data
/**
* Xvid codec definition for libavcodec.
*/
-AVCodec libxvid_encoder = {
+AVCodec ff_libxvid_encoder = {
"libxvid",
- CODEC_TYPE_VIDEO,
- CODEC_ID_XVID,
+ AVMEDIA_TYPE_VIDEO,
+ CODEC_ID_MPEG4,
sizeof(struct xvid_context),
- ff_xvid_encode_init,
- ff_xvid_encode_frame,
- ff_xvid_encode_close,
- .pix_fmts= (enum PixelFormat[]){PIX_FMT_YUV420P, PIX_FMT_NONE},
+ xvid_encode_init,
+ xvid_encode_frame,
+ xvid_encode_close,
+ .pix_fmts= (const enum PixelFormat[]){PIX_FMT_YUV420P, PIX_FMT_NONE},
.long_name= NULL_IF_CONFIG_SMALL("libxvidcore MPEG-4 part 2"),
};
+
+#endif /* CONFIG_LIBXVID_ENCODER */
projects / ffmpeg / blobdiff