/*
- * Interface to xvidcore for mpeg4 encoding
+ * Interface to xvidcore for MPEG-4 encoding
* Copyright (c) 2004 Adam Thayer <krevnik@comcast.net>
*
* This file is part of Libav.
*/
#include <stdio.h>
+#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <xvid.h>
#include "avcodec.h"
#include "internal.h"
-#include "libxvid.h"
#include "mpegutils.h"
/**
int ssim_acc; /**< SSIM accuracy. 0: accurate. 4: fast. */
int gmc;
int me_quality; /**< Motion estimation quality. 0: fast 6: best. */
+ int mpeg_quant; /**< Quantization type. 0: H.263, 1: MPEG */
};
/**
struct xvid_context *context; /**< Pointer to private context */
};
+static int xvid_encode_frame(AVCodecContext *avctx, AVPacket *pkt,
+ const AVFrame *picture, int *got_packet);
+
+
/*
* Xvid 2-Pass Kludge Section
*
* Destroy the two-pass plugin context.
*
* @param ref Context pointer for the plugin
- * @param param Destrooy context
+ * @param param Destroy context
* @return Returns 0, success guaranteed
*/
static int xvid_ff_2pass_destroy(struct xvid_context *ref,
}
}
+/* Create temporary file using mkstemp(), tries /tmp first, if possible.
+ * *prefix can be a character constant; *filename will be allocated internally.
+ * Return file descriptor of opened file (or error code on error)
+ * and opened file name in **filename. */
+static int xvid_tempfile(AVCodecContext *avctx, const char *prefix,
+ char **filename)
+{
+ int fd = -1;
+ size_t len = strlen(prefix) + 12; /* room for "/tmp/" and "XXXXXX\0" */
+ *filename = av_malloc(len);
+ if (!(*filename)) {
+ av_log(avctx, AV_LOG_ERROR, "xvid_tempfile: Cannot allocate file name\n");
+ return AVERROR(ENOMEM);
+ }
+ snprintf(*filename, len, "/tmp/%sXXXXXX", prefix);
+ fd = mkstemp(*filename);
+ if (fd < 0) {
+ snprintf(*filename, len, "./%sXXXXXX", prefix);
+ fd = mkstemp(*filename);
+ }
+ if (fd < 0) {
+ av_log(avctx, AV_LOG_ERROR, "xvid_tempfile: Cannot open temporary file %s\n", *filename);
+ return AVERROR(EIO);
+ }
+ return fd; /* success */
+}
+
static av_cold int xvid_encode_init(AVCodecContext *avctx)
{
int xerr, i;
case 1:
x->me_flags |= XVID_ME_ADVANCEDDIAMOND16 |
XVID_ME_HALFPELREFINE16;
-#if FF_API_MOTION_EST
-FF_DISABLE_DEPRECATION_WARNINGS
- break;
- default:
- switch (avctx->me_method) {
- case ME_FULL: /* Quality 6 */
- x->me_flags |= XVID_ME_EXTSEARCH16 |
- XVID_ME_EXTSEARCH8;
- case ME_EPZS: /* Quality 4 */
- x->me_flags |= XVID_ME_ADVANCEDDIAMOND8 |
- XVID_ME_HALFPELREFINE8 |
- XVID_ME_CHROMA_PVOP |
- XVID_ME_CHROMA_BVOP;
- case ME_LOG: /* Quality 2 */
- case ME_PHODS:
- case ME_X1:
- x->me_flags |= XVID_ME_ADVANCEDDIAMOND16 |
- XVID_ME_HALFPELREFINE16;
- case ME_ZERO: /* Quality 0 */
- default:
- break;
- }
-FF_ENABLE_DEPRECATION_WARNINGS
-#endif
}
/* Decide how we should decide blocks */
break;
}
- /* Bring in VOL flags from avconv command-line */
-#if FF_API_GMC
- if (avctx->flags & CODEC_FLAG_GMC)
- x->gmc = 1;
-#endif
-
x->vol_flags = 0;
if (x->gmc) {
x->vol_flags |= XVID_VOL_GMC;
rc2pass2.version = XVID_VERSION;
rc2pass2.bitrate = avctx->bit_rate;
- fd = ff_tempfile("xvidff.", &x->twopassfile);
+ fd = xvid_tempfile(avctx, "xvidff.", &x->twopassfile);
if (fd < 0) {
av_log(avctx, AV_LOG_ERROR, "Xvid: Cannot write 2-pass pipe\n");
return fd;
/* Quant Matrices */
x->intra_matrix =
x->inter_matrix = NULL;
+
+#if FF_API_PRIVATE_OPT
+FF_DISABLE_DEPRECATION_WARNINGS
if (avctx->mpeg_quant)
+ x->mpeg_quant = avctx->mpeg_quant;
+FF_ENABLE_DEPRECATION_WARNINGS
+#endif
+
+ if (x->mpeg_quant)
x->vol_flags |= XVID_VOL_MPEGQUANT;
if ((avctx->intra_matrix || avctx->inter_matrix)) {
x->vol_flags |= XVID_VOL_MPEGQUANT;
avctx->extradata = NULL;
avctx->extradata_size = 0;
if (xvid_flags & AV_CODEC_FLAG_GLOBAL_HEADER) {
- /* In this case, we are claiming to be MPEG4 */
+ /* In this case, we are claiming to be MPEG-4 */
x->quicktime_format = 1;
avctx->codec_id = AV_CODEC_ID_MPEG4;
} else {
if (avctx->max_b_frames > 0 && !x->quicktime_format)
xvid_enc_create.global |= XVID_GLOBAL_PACKED;
+ /* Encode a dummy frame to get the extradata immediately */
+ if (x->quicktime_format) {
+ AVFrame *picture;
+ AVPacket packet;
+ int got_packet, ret;
+
+ av_init_packet(&packet);
+
+ picture = av_frame_alloc();
+ if (!picture)
+ return AVERROR(ENOMEM);
+
+ xerr = xvid_encore(NULL, XVID_ENC_CREATE, &xvid_enc_create, NULL);
+ if (xerr) {
+ av_frame_free(&picture);
+ av_log(avctx, AV_LOG_ERROR, "Xvid: Could not create encoder reference\n");
+ return AVERROR_UNKNOWN;
+ }
+ x->encoder_handle = xvid_enc_create.handle;
+
+ picture->width = avctx->width;
+ picture->height = avctx->height;
+ picture->format = avctx->pix_fmt;
+
+ if ((ret = av_frame_get_buffer(picture, 32)) < 0) {
+ xvid_encore(x->encoder_handle, XVID_ENC_DESTROY, NULL, NULL);
+ av_frame_free(&picture);
+ return ret;
+ }
+
+ ret = xvid_encode_frame(avctx, &packet, picture, &got_packet);
+ if (!ret && got_packet)
+ av_packet_unref(&packet);
+ av_frame_free(&picture);
+ xvid_encore(x->encoder_handle, XVID_ENC_DESTROY, NULL, NULL);
+ }
+
/* Create encoder context */
xerr = xvid_encore(NULL, XVID_ENC_CREATE, &xvid_enc_create, NULL);
if (xerr) {
{ "ssim_acc", "SSIM accuracy", OFFSET(ssim_acc), AV_OPT_TYPE_INT, { .i64 = 2 }, 0, 4, VE },
{ "gmc", "use GMC", OFFSET(gmc), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 1, VE },
{ "me_quality", "Motion estimation quality", OFFSET(me_quality), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 6, VE },
+ { "mpeg_quant", "Use MPEG quantizers instead of H.263", OFFSET(mpeg_quant), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 1, VE },
{ NULL },
};
.priv_class = &xvid_class,
.caps_internal = FF_CODEC_CAP_INIT_THREADSAFE |
FF_CODEC_CAP_INIT_CLEANUP,
+ .wrapper_name = "libxvid",
};
projects / ffmpeg / blobdiff