diff --git a/app/CMakeLists.txt b/app/CMakeLists.txt
index 634f0d3..f656acb 100644
--- a/app/CMakeLists.txt
+++ b/app/CMakeLists.txt
@@ -31,6 +31,7 @@ add_library( # Sets the name of the library.
              src/main/cpp/media_player.c
              src/main/cpp/video_filter.c
              src/main/cpp/audio_lame.c
+             src/main/cpp/fast_start.c
         )
 
 add_library( ffmpeg
diff --git a/app/src/main/cpp/fast_start.c b/app/src/main/cpp/fast_start.c
new file mode 100644
index 0000000..56041fc
--- /dev/null
+++ b/app/src/main/cpp/fast_start.c
@@ -0,0 +1,660 @@
+//
+// Created by frank on 2019-12-06.
+//
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <inttypes.h>
+#include <string.h>
+#include <limits.h>
+#include <jni.h>
+#include <ffmpeg_jni_define.h>
+
+#ifdef __MINGW32__
+#undef fseeko
+#define fseeko(x, y, z) fseeko64(x, y, z)
+#undef ftello
+#define ftello(x)       ftello64(x)
+#elif defined(_WIN32)
+#undef fseeko
+#define fseeko(x, y, z) _fseeki64(x, y, z)
+#undef ftello
+#define ftello(x)       _ftelli64(x)
+#endif
+
+#define MIN(a,b) ((a) > (b) ? (b) : (a))
+
+#define BE_32(x) (((uint32_t)(((uint8_t*)(x))[0]) << 24) |  \
+                             (((uint8_t*)(x))[1]  << 16) |  \
+                             (((uint8_t*)(x))[2]  <<  8) |  \
+                              ((uint8_t*)(x))[3])
+
+#define BE_64(x) (((uint64_t)(((uint8_t*)(x))[0]) << 56) |  \
+                  ((uint64_t)(((uint8_t*)(x))[1]) << 48) |  \
+                  ((uint64_t)(((uint8_t*)(x))[2]) << 40) |  \
+                  ((uint64_t)(((uint8_t*)(x))[3]) << 32) |  \
+                  ((uint64_t)(((uint8_t*)(x))[4]) << 24) |  \
+                  ((uint64_t)(((uint8_t*)(x))[5]) << 16) |  \
+                  ((uint64_t)(((uint8_t*)(x))[6]) <<  8) |  \
+                  ((uint64_t)( (uint8_t*)(x))[7]))
+
+#define AV_WB32(p, val)    {                    \
+    ((uint8_t*)(p))[0] = ((val) >> 24) & 0xff;  \
+    ((uint8_t*)(p))[1] = ((val) >> 16) & 0xff;  \
+    ((uint8_t*)(p))[2] = ((val) >> 8) & 0xff;   \
+    ((uint8_t*)(p))[3] = (val) & 0xff;          \
+    }
+
+#define AV_WB64(p, val)    {                    \
+    AV_WB32(p, (val) >> 32)                     \
+    AV_WB32(p + 4, val)                         \
+    }
+
+#define BE_FOURCC(ch0, ch1, ch2, ch3)           \
+    ( (uint32_t)(unsigned char)(ch3)        |   \
+     ((uint32_t)(unsigned char)(ch2) <<  8) |   \
+     ((uint32_t)(unsigned char)(ch1) << 16) |   \
+     ((uint32_t)(unsigned char)(ch0) << 24) )
+
+#define QT_ATOM BE_FOURCC
+/* top level atoms */
+#define FREE_ATOM QT_ATOM('f', 'r', 'e', 'e')
+#define JUNK_ATOM QT_ATOM('j', 'u', 'n', 'k')
+#define MDAT_ATOM QT_ATOM('m', 'd', 'a', 't')
+#define MOOV_ATOM QT_ATOM('m', 'o', 'o', 'v')
+#define PNOT_ATOM QT_ATOM('p', 'n', 'o', 't')
+#define SKIP_ATOM QT_ATOM('s', 'k', 'i', 'p')
+#define WIDE_ATOM QT_ATOM('w', 'i', 'd', 'e')
+#define PICT_ATOM QT_ATOM('P', 'I', 'C', 'T')
+#define FTYP_ATOM QT_ATOM('f', 't', 'y', 'p')
+#define UUID_ATOM QT_ATOM('u', 'u', 'i', 'd')
+
+#define CMOV_ATOM QT_ATOM('c', 'm', 'o', 'v')
+#define TRAK_ATOM QT_ATOM('t', 'r', 'a', 'k')
+#define MDIA_ATOM QT_ATOM('m', 'd', 'i', 'a')
+#define MINF_ATOM QT_ATOM('m', 'i', 'n', 'f')
+#define STBL_ATOM QT_ATOM('s', 't', 'b', 'l')
+#define STCO_ATOM QT_ATOM('s', 't', 'c', 'o')
+#define CO64_ATOM QT_ATOM('c', 'o', '6', '4')
+
+#define ATOM_PREAMBLE_SIZE    8
+#define COPY_BUFFER_SIZE   33554432
+#define MAX_FTYP_ATOM_SIZE 1048576
+
+typedef struct {
+    uint32_t type;
+    uint32_t header_size;
+    uint64_t size;
+    unsigned char *data;
+} atom_t;
+
+typedef struct {
+    uint64_t moov_atom_size;
+    uint64_t stco_offset_count;
+    uint64_t stco_data_size;
+    int stco_overflow;
+    uint32_t depth;
+} update_chunk_offsets_context_t;
+
+typedef struct {
+    unsigned char *dest;
+    uint64_t original_moov_size;
+    uint64_t new_moov_size;
+} upgrade_stco_context_t;
+
+typedef int (*parse_atoms_callback_t)(void *context, atom_t *atom);
+
+static int parse_atoms(
+    unsigned char *buf,
+    uint64_t size,
+    parse_atoms_callback_t callback,
+    void *context)
+{
+    unsigned char *pos = buf;
+    unsigned char *end = pos + size;
+    atom_t atom;
+    int ret;
+
+    while (end - pos >= ATOM_PREAMBLE_SIZE) {
+        atom.size = BE_32(pos);
+        atom.type = BE_32(pos + 4);
+        pos += ATOM_PREAMBLE_SIZE;
+        atom.header_size = ATOM_PREAMBLE_SIZE;
+
+        switch (atom.size) {
+        case 1:
+            if (end - pos < 8) {
+                fprintf(stderr, "not enough room for 64 bit atom size\n");
+                return -1;
+            }
+
+            atom.size = BE_64(pos);
+            pos += 8;
+            atom.header_size = ATOM_PREAMBLE_SIZE + 8;
+            break;
+
+        case 0:
+            atom.size = ATOM_PREAMBLE_SIZE + end - pos;
+            break;
+        default:
+            break;
+        }
+
+        if (atom.size < atom.header_size) {
+            fprintf(stderr, "atom size %"PRIu64" too small\n", atom.size);
+            return -1;
+        }
+
+        atom.size -= atom.header_size;
+
+        if (atom.size > end - pos) {
+            fprintf(stderr, "atom size %"PRIu64" too big\n", atom.size);
+            return -1;
+        }
+
+        atom.data = pos;
+        ret = callback(context, &atom);
+        if (ret < 0) {
+            return ret;
+        }
+
+        pos += atom.size;
+    }
+
+    return 0;
+}
+
+static int update_stco_offsets(update_chunk_offsets_context_t *context, atom_t *atom)
+{
+    uint32_t current_offset;
+    uint32_t offset_count;
+    unsigned char *pos;
+    unsigned char *end;
+
+    printf(" patching stco atom...\n");
+    if (atom->size < 8) {
+        fprintf(stderr, "stco atom size %"PRIu64" too small\n", atom->size);
+        return -1;
+    }
+
+    offset_count = BE_32(atom->data + 4);
+    if (offset_count > (atom->size - 8) / 4) {
+        fprintf(stderr, "stco offset count %"PRIu32" too big\n", offset_count);
+        return -1;
+    }
+
+    context->stco_offset_count += offset_count;
+    context->stco_data_size += atom->size - 8;
+
+    for (pos = atom->data + 8, end = pos + offset_count * 4;
+        pos < end;
+        pos += 4) {
+        current_offset = BE_32(pos);
+        if (current_offset > UINT_MAX - context->moov_atom_size) {
+            context->stco_overflow = 1;
+        }
+        current_offset += context->moov_atom_size;
+        AV_WB32(pos, current_offset);
+    }
+
+    return 0;
+}
+
+static int update_co64_offsets(update_chunk_offsets_context_t *context, atom_t *atom)
+{
+    uint64_t current_offset;
+    uint32_t offset_count;
+    unsigned char *pos;
+    unsigned char *end;
+
+    printf(" patching co64 atom...\n");
+    if (atom->size < 8) {
+        fprintf(stderr, "co64 atom size %"PRIu64" too small\n", atom->size);
+        return -1;
+    }
+
+    offset_count = BE_32(atom->data + 4);
+    if (offset_count > (atom->size - 8) / 8) {
+        fprintf(stderr, "co64 offset count %"PRIu32" too big\n", offset_count);
+        return -1;
+    }
+
+    for (pos = atom->data + 8, end = pos + offset_count * 8;
+        pos < end;
+        pos += 8) {
+        current_offset = BE_64(pos);
+        current_offset += context->moov_atom_size;
+        AV_WB64(pos, current_offset);
+    }
+
+    return 0;
+}
+
+static int update_chunk_offsets_callback(void *ctx, atom_t *atom)
+{
+    update_chunk_offsets_context_t *context = ctx;
+    int ret;
+
+    switch (atom->type) {
+    case STCO_ATOM:
+        return update_stco_offsets(context, atom);
+
+    case CO64_ATOM:
+        return update_co64_offsets(context, atom);
+
+    case MOOV_ATOM:
+    case TRAK_ATOM:
+    case MDIA_ATOM:
+    case MINF_ATOM:
+    case STBL_ATOM:
+        context->depth++;
+        if (context->depth > 10) {
+            fprintf(stderr, "atoms too deeply nested\n");
+            return -1;
+        }
+
+        ret = parse_atoms(
+            atom->data,
+            atom->size,
+            update_chunk_offsets_callback,
+            context);
+        context->depth--;
+        return ret;
+    default:
+        break;
+    }
+
+    return 0;
+}
+
+static void set_atom_size(unsigned char *header, uint32_t header_size, uint64_t size)
+{
+    switch (header_size) {
+    case 8:
+        AV_WB32(header, size);
+        break;
+
+    case 16:
+        AV_WB64(header + 8, size);
+        break;
+    default:
+        break;
+    }
+}
+
+static void upgrade_stco_atom(upgrade_stco_context_t *context, atom_t *atom)
+{
+    unsigned char *pos;
+    unsigned char *end;
+    uint64_t new_offset;
+    uint32_t offset_count;
+    uint32_t original_offset;
+
+    /* Note: not performing validations since they were performed on the first pass */
+
+    offset_count = BE_32(atom->data + 4);
+
+    /* write the header */
+    memcpy(context->dest, atom->data - atom->header_size, atom->header_size + 8);
+    AV_WB32(context->dest + 4, CO64_ATOM);
+    set_atom_size(context->dest, atom->header_size, atom->header_size + 8 + offset_count * 8);
+    context->dest += atom->header_size + 8;
+
+    /* write the data */
+    for (pos = atom->data + 8, end = pos + offset_count * 4;
+        pos < end;
+        pos += 4) {
+        original_offset = BE_32(pos) - context->original_moov_size;
+        new_offset = (uint64_t)original_offset + context->new_moov_size;
+        AV_WB64(context->dest, new_offset);
+        context->dest += 8;
+    }
+}
+
+static int upgrade_stco_callback(void *ctx, atom_t *atom)
+{
+    upgrade_stco_context_t *context = ctx;
+    unsigned char *start_pos;
+    uint64_t copy_size;
+
+    switch (atom->type) {
+    case STCO_ATOM:
+        upgrade_stco_atom(context, atom);
+        break;
+
+    case MOOV_ATOM:
+    case TRAK_ATOM:
+    case MDIA_ATOM:
+    case MINF_ATOM:
+    case STBL_ATOM:
+        /* write the atom header */
+        memcpy(context->dest, atom->data - atom->header_size, atom->header_size);
+        start_pos = context->dest;
+        context->dest += atom->header_size;
+
+        /* parse internal atoms*/
+        if (parse_atoms(
+            atom->data,
+            atom->size,
+            upgrade_stco_callback,
+            context) < 0) {
+            return -1;
+        }
+
+        /* update the atom size */
+        set_atom_size(start_pos, atom->header_size, context->dest - start_pos);
+        break;
+
+    default:
+        copy_size = atom->header_size + atom->size;
+        memcpy(context->dest, atom->data - atom->header_size, copy_size);
+        context->dest += copy_size;
+        break;
+    }
+
+    return 0;
+}
+
+static int update_moov_atom(
+    unsigned char **moov_atom,
+    uint64_t *moov_atom_size)
+{
+    update_chunk_offsets_context_t update_context = { 0 };
+    upgrade_stco_context_t upgrade_context;
+    unsigned char *new_moov_atom;
+
+    update_context.moov_atom_size = *moov_atom_size;
+
+    if (parse_atoms(
+        *moov_atom,
+        *moov_atom_size,
+        update_chunk_offsets_callback,
+        &update_context) < 0) {
+        return -1;
+    }
+
+    if (!update_context.stco_overflow) {
+        return 0;
+    }
+
+    printf(" upgrading stco atoms to co64...\n");
+    upgrade_context.new_moov_size = *moov_atom_size +
+        update_context.stco_offset_count * 8 -
+        update_context.stco_data_size;
+
+    new_moov_atom = malloc(upgrade_context.new_moov_size);
+    if (new_moov_atom == NULL) {
+        fprintf(stderr, "could not allocate %"PRIu64" bytes for updated moov atom\n",
+            upgrade_context.new_moov_size);
+        return -1;
+    }
+
+    upgrade_context.original_moov_size = *moov_atom_size;
+    upgrade_context.dest = new_moov_atom;
+
+    if (parse_atoms(
+        *moov_atom,
+        *moov_atom_size,
+        upgrade_stco_callback,
+        &upgrade_context) < 0) {
+        free(new_moov_atom);
+        return -1;
+    }
+
+    free(*moov_atom);
+    *moov_atom = new_moov_atom;
+    *moov_atom_size = upgrade_context.new_moov_size;
+
+    if (upgrade_context.dest != *moov_atom + *moov_atom_size) {
+        fprintf(stderr, "unexpected - wrong number of moov bytes written\n");
+        return -1;
+    }
+
+    return 0;
+}
+
+FFMPEG_FUNC(jint, fastStart, jstring inputFile, jstring outputFile) {
+    FILE *infile  = NULL;
+    FILE *outfile = NULL;
+    unsigned char atom_bytes[ATOM_PREAMBLE_SIZE];
+    uint32_t atom_type   = 0;
+    uint64_t atom_size   = 0;
+    uint64_t atom_offset = 0;
+    int64_t last_offset;
+    unsigned char *moov_atom = NULL;
+    unsigned char *ftyp_atom = NULL;
+    uint64_t moov_atom_size;
+    uint64_t ftyp_atom_size = 0;
+    int64_t start_offset = 0;
+    unsigned char *copy_buffer = NULL;
+    int bytes_to_copy;
+    uint64_t free_size = 0;
+    uint64_t moov_size = 0;
+
+
+    printf("Usage: qt-faststart <infile.mp4> <outfile.mp4>\n"
+           "Note: alternatively you can use -movflags +faststart in ffmpeg\n");
+
+    const char *input_file = (*env)->GetStringUTFChars(env, inputFile, JNI_FALSE);
+    const char *output_file = (*env)->GetStringUTFChars(env, outputFile, JNI_FALSE);
+
+    infile = fopen(input_file, "rb");
+    if (!infile) {
+        perror(input_file);
+        goto error_out;
+    }
+
+    /* traverse through the atoms in the file to make sure that 'moov' is
+     * at the end */
+    while (!feof(infile)) {
+        if (fread(atom_bytes, ATOM_PREAMBLE_SIZE, 1, infile) != 1) {
+            break;
+        }
+        atom_size = BE_32(&atom_bytes[0]);
+        atom_type = BE_32(&atom_bytes[4]);
+
+        /* keep ftyp atom */
+        if (atom_type == FTYP_ATOM) {
+            if (atom_size > MAX_FTYP_ATOM_SIZE) {
+                fprintf(stderr, "ftyp atom size %"PRIu64" too big\n",
+                       atom_size);
+                goto error_out;
+            }
+            ftyp_atom_size = atom_size;
+            free(ftyp_atom);
+            ftyp_atom = malloc((size_t) ftyp_atom_size);
+            if (!ftyp_atom) {
+                fprintf(stderr, "could not allocate %"PRIu64" bytes for ftyp atom\n",
+                       atom_size);
+                goto error_out;
+            }
+            if (fseeko(infile, -ATOM_PREAMBLE_SIZE, SEEK_CUR) ||
+                fread(ftyp_atom, (size_t) atom_size, 1, infile) != 1 ||
+                (start_offset = ftello(infile)) < 0) {
+                perror(input_file);
+                goto error_out;
+            }
+        } else {
+            int ret;
+            /* 64-bit special case */
+            if (atom_size == 1) {
+                if (fread(atom_bytes, ATOM_PREAMBLE_SIZE, 1, infile) != 1) {
+                    break;
+                }
+                atom_size = BE_64(&atom_bytes[0]);
+                ret = fseeko(infile, atom_size - ATOM_PREAMBLE_SIZE * 2, SEEK_CUR);
+            } else {
+                ret = fseeko(infile, atom_size - ATOM_PREAMBLE_SIZE, SEEK_CUR);
+            }
+            if (ret) {
+                perror(input_file);
+                goto error_out;
+            }
+        }
+        printf("%c%c%c%c %10"PRIu64" %"PRIu64"\n",
+               (atom_type >> 24) & 255,
+               (atom_type >> 16) & 255,
+               (atom_type >>  8) & 255,
+               (atom_type >>  0) & 255,
+               atom_offset,
+               atom_size);
+        if ((atom_type != FREE_ATOM) &&
+            (atom_type != JUNK_ATOM) &&
+            (atom_type != MDAT_ATOM) &&
+            (atom_type != MOOV_ATOM) &&
+            (atom_type != PNOT_ATOM) &&
+            (atom_type != SKIP_ATOM) &&
+            (atom_type != WIDE_ATOM) &&
+            (atom_type != PICT_ATOM) &&
+            (atom_type != UUID_ATOM) &&
+            (atom_type != FTYP_ATOM)) {
+            fprintf(stderr, "encountered non-QT top-level atom (is this a QuickTime file?)\n");
+            break;
+        }
+        atom_offset += atom_size;
+
+        /* The atom header is 8 (or 16 bytes), if the atom size (which
+         * includes these 8 or 16 bytes) is less than that, we won't be
+         * able to continue scanning sensibly after this atom, so break. */
+        if (atom_size < 8)
+            break;
+
+        if (atom_type == MOOV_ATOM)
+            moov_size = atom_size;
+
+        if (moov_size && atom_type == FREE_ATOM) {
+            free_size += atom_size;
+            atom_type = MOOV_ATOM;
+            atom_size = moov_size;
+        }
+    }
+
+    if (atom_type != MOOV_ATOM) {
+        printf("last atom in file was not a moov atom\n");
+        free(ftyp_atom);
+        fclose(infile);
+        return 0;
+    }
+
+    if (atom_size < 16) {
+        fprintf(stderr, "bad moov atom size\n");
+        goto error_out;
+    }
+
+    /* moov atom was, in fact, the last atom in the chunk; load the whole
+     * moov atom */
+    if (fseeko(infile, -(atom_size + free_size), SEEK_END)) {
+        perror(input_file);
+        goto error_out;
+    }
+    last_offset    = ftello(infile);
+    if (last_offset < 0) {
+        perror(input_file);
+        goto error_out;
+    }
+    moov_atom_size = atom_size;
+    moov_atom      = malloc((size_t) moov_atom_size);
+    if (!moov_atom) {
+        fprintf(stderr, "could not allocate %"PRIu64" bytes for moov atom\n", atom_size);
+        goto error_out;
+    }
+    if (fread(moov_atom, (size_t) atom_size, 1, infile) != 1) {
+        perror(input_file);
+        goto error_out;
+    }
+
+    /* this utility does not support compressed atoms yet, so disqualify
+     * files with compressed QT atoms */
+    if (BE_32(&moov_atom[12]) == CMOV_ATOM) {
+        fprintf(stderr, "this utility does not support compressed moov atoms yet\n");
+        goto error_out;
+    }
+
+    /* close; will be re-opened later */
+    fclose(infile);
+    infile = NULL;
+
+    if (update_moov_atom(&moov_atom, &moov_atom_size) < 0) {
+        goto error_out;
+    }
+
+    /* re-open the input file and open the output file */
+    infile = fopen(input_file, "rb");
+    if (!infile) {
+        perror(input_file);
+        goto error_out;
+    }
+
+    if (start_offset > 0) { /* seek after ftyp atom */
+        if (fseeko(infile, start_offset, SEEK_SET)) {
+            perror(input_file);
+            goto error_out;
+        }
+
+        last_offset -= start_offset;
+    }
+
+    outfile = fopen(output_file, "wb");
+    if (!outfile) {
+        perror(output_file);
+        goto error_out;
+    }
+
+    /* dump the same ftyp atom */
+    if (ftyp_atom_size > 0) {
+        printf(" writing ftyp atom...\n");
+        if (fwrite(ftyp_atom, (size_t) ftyp_atom_size, 1, outfile) != 1) {
+            perror(output_file);
+            goto error_out;
+        }
+    }
+
+    /* dump the new moov atom */
+    printf(" writing moov atom...\n");
+    if (fwrite(moov_atom, (size_t) moov_atom_size, 1, outfile) != 1) {
+        perror(output_file);
+        goto error_out;
+    }
+
+    /* copy the remainder of the infile, from offset 0 -> last_offset - 1 */
+    bytes_to_copy = (int) MIN(COPY_BUFFER_SIZE, last_offset);
+    copy_buffer = malloc(bytes_to_copy);
+    if (!copy_buffer) {
+        fprintf(stderr, "could not allocate %d bytes for copy_buffer\n", bytes_to_copy);
+        goto error_out;
+    }
+    printf(" copying rest of file...\n");
+    while (last_offset) {
+        bytes_to_copy = (int) MIN(bytes_to_copy, last_offset);
+
+        if (fread(copy_buffer, (size_t) bytes_to_copy, 1, infile) != 1) {
+            perror(input_file);
+            goto error_out;
+        }
+        if (fwrite(copy_buffer, (size_t) bytes_to_copy, 1, outfile) != 1) {
+            perror(output_file);
+            goto error_out;
+        }
+        last_offset -= bytes_to_copy;
+    }
+
+    fclose(infile);
+    fclose(outfile);
+    free(moov_atom);
+    free(ftyp_atom);
+    free(copy_buffer);
+    (*env)->ReleaseStringUTFChars(env, inputFile, input_file);
+    (*env)->ReleaseStringUTFChars(env, outputFile, output_file);
+
+    return 0;
+
+error_out:
+    if (infile)
+        fclose(infile);
+    if (outfile)
+        fclose(outfile);
+    free(moov_atom);
+    free(ftyp_atom);
+    free(copy_buffer);
+    return 1;
+}
diff --git a/app/src/main/java/com/frank/ffmpeg/FFmpegCmd.java b/app/src/main/java/com/frank/ffmpeg/FFmpegCmd.java
index a113ab7..35649d1 100644
--- a/app/src/main/java/com/frank/ffmpeg/FFmpegCmd.java
+++ b/app/src/main/java/com/frank/ffmpeg/FFmpegCmd.java
@@ -1,5 +1,7 @@
 package com.frank.ffmpeg;
 
+import android.text.TextUtils;
+
 import com.frank.ffmpeg.listener.OnHandleListener;
 
 public class FFmpegCmd {
@@ -24,6 +26,22 @@ public class FFmpegCmd {
             }
         }).start();
     }
+
+    /**
+     * 使用FastStart把Moov移动到Mdat前面
+     * @param inputFile inputFile
+     * @param outputFile outputFile
+     * @return 是否操作成功
+     */
+    public int moveMoovAhead(String inputFile, String outputFile) {
+        if (TextUtils.isEmpty(inputFile) || TextUtils.isEmpty(outputFile)) {
+            return -1;
+        }
+        return fastStart(inputFile, outputFile);
+    }
+
     private native static int handle(String[] commands);
 
+    private native static int fastStart(String inputFile, String outputFile);
+
 }
\ No newline at end of file
diff --git a/app/src/main/java/com/frank/ffmpeg/activity/VideoHandleActivity.java b/app/src/main/java/com/frank/ffmpeg/activity/VideoHandleActivity.java
index 74cca13..902b565 100644
--- a/app/src/main/java/com/frank/ffmpeg/activity/VideoHandleActivity.java
+++ b/app/src/main/java/com/frank/ffmpeg/activity/VideoHandleActivity.java
@@ -5,14 +5,18 @@ import android.os.Bundle;
 import android.os.Environment;
 import android.os.Handler;
 import android.os.Message;
+import android.util.Log;
 import android.view.View;
 import android.widget.LinearLayout;
 import android.widget.ProgressBar;
+
+import com.frank.ffmpeg.FFmpegCmd;
 import com.frank.ffmpeg.R;
 import com.frank.ffmpeg.format.VideoLayout;
 import com.frank.ffmpeg.handler.FFmpegHandler;
 import com.frank.ffmpeg.util.FFmpegUtil;
 import com.frank.ffmpeg.util.FileUtil;
+
 import java.io.File;
 
 import static com.frank.ffmpeg.handler.FFmpegHandler.MSG_BEGIN;
@@ -20,19 +24,21 @@ import static com.frank.ffmpeg.handler.FFmpegHandler.MSG_FINISH;
 
 public class VideoHandleActivity extends BaseActivity {
 
+    private final static String TAG = VideoHandleActivity.class.getSimpleName();
     private static final String PATH = Environment.getExternalStorageDirectory().getPath();
 
     private ProgressBar progressVideo;
     private LinearLayout layoutVideoHandle;
     private int viewId;
     private FFmpegHandler ffmpegHandler;
+    private final static boolean useFFmpegCmd = true;
 
     @SuppressLint("HandlerLeak")
-    private Handler mHandler = new Handler(){
+    private Handler mHandler = new Handler() {
         @Override
         public void handleMessage(Message msg) {
             super.handleMessage(msg);
-            switch (msg.what){
+            switch (msg.what) {
                 case MSG_BEGIN:
                     progressVideo.setVisibility(View.VISIBLE);
                     layoutVideoHandle.setVisibility(View.GONE);
@@ -77,7 +83,8 @@ public class VideoHandleActivity extends BaseActivity {
                 R.id.btn_reverse_video,
                 R.id.btn_denoise_video,
                 R.id.btn_to_image,
-                R.id.btn_pip
+                R.id.btn_pip,
+                R.id.btn_moov
         );
     }
 
@@ -94,6 +101,7 @@ public class VideoHandleActivity extends BaseActivity {
 
     /**
      * 调用ffmpeg处理视频
+     *
      * @param srcFile srcFile
      */
     private void doHandleVideo(String srcFile) {
@@ -105,7 +113,7 @@ public class VideoHandleActivity extends BaseActivity {
             showToast(getString(R.string.wrong_video_format));
             return;
         }
-        switch (viewId){
+        switch (viewId) {
             case R.id.btn_video_transform://视频转码:mp4转flv、wmv, 或者flv、wmv转Mp4
                 String transformVideo = PATH + File.separator + "transformVideo.flv";
                 commandLine = FFmpegUtil.transformVideo(srcFile, transformVideo);
@@ -177,7 +185,7 @@ public class VideoHandleActivity extends BaseActivity {
             case R.id.btn_combine_video://图片合成视频
                 //图片所在路径，图片命名格式img+number.jpg
                 String picturePath = PATH + File.separator + "img/";
-                if (!FileUtil.checkFileExist(picturePath)){
+                if (!FileUtil.checkFileExist(picturePath)) {
                     return;
                 }
                 String combineVideo = PATH + File.separator + "combineVideo.mp4";
@@ -187,7 +195,7 @@ public class VideoHandleActivity extends BaseActivity {
                 String input1 = PATH + File.separator + "input1.mp4";
                 String input2 = PATH + File.separator + "input2.mp4";
                 String outputFile = PATH + File.separator + "multi.mp4";
-                if (!FileUtil.checkFileExist(input1) || !FileUtil.checkFileExist(input2)){
+                if (!FileUtil.checkFileExist(input1) || !FileUtil.checkFileExist(input2)) {
                     return;
                 }
                 commandLine = FFmpegUtil.multiVideo(input1, input2, outputFile, VideoLayout.LAYOUT_HORIZONTAL);
@@ -203,9 +211,9 @@ public class VideoHandleActivity extends BaseActivity {
             case R.id.btn_to_image://视频转图片
                 String imagePath = PATH + File.separator + "Video2Image/";//图片保存路径
                 File imageFile = new File(imagePath);
-                if (!imageFile.exists()){
+                if (!imageFile.exists()) {
                     boolean result = imageFile.mkdir();
-                    if (!result){
+                    if (!result) {
                         return;
                     }
                 }
@@ -217,7 +225,7 @@ public class VideoHandleActivity extends BaseActivity {
             case R.id.btn_pip://两个视频合成画中画
                 String inputFile1 = PATH + File.separator + "beyond.mp4";
                 String inputFile2 = PATH + File.separator + "small_girl.mp4";
-                if (!FileUtil.checkFileExist(inputFile1) && !FileUtil.checkFileExist(inputFile2)){
+                if (!FileUtil.checkFileExist(inputFile1) && !FileUtil.checkFileExist(inputFile2)) {
                     return;
                 }
                 //x、y坐标点需要根据全屏视频与小视频大小，进行计算
@@ -227,6 +235,26 @@ public class VideoHandleActivity extends BaseActivity {
                 String picInPic = PATH + File.separator + "PicInPic.mp4";
                 commandLine = FFmpegUtil.picInPicVideo(inputFile1, inputFile2, x, y, picInPic);
                 break;
+            case R.id.btn_moov://moov前移操作，针对mp4视频moov在mdat后面的情况
+                if (!srcFile.endsWith(FileUtil.TYPE_MP4)) {
+                    showToast(getString(R.string.tip_not_mp4_video));
+                    return;
+                }
+                String filePath = FileUtil.getFilePath(srcFile);
+                String fileName = FileUtil.getFileName(srcFile);
+                Log.e(TAG, "moov filePath=" + filePath + "--fileName=" + fileName);
+                fileName = "moov_" + fileName;
+                String moovPath = filePath + File.separator + fileName;
+                if (useFFmpegCmd) {
+                    commandLine = FFmpegUtil.moveMoovAhead(srcFile, moovPath);
+                } else {
+                    long start = System.currentTimeMillis();
+                    FFmpegCmd ffmpegCmd = new FFmpegCmd();
+                    int result = ffmpegCmd.moveMoovAhead(srcFile, moovPath);
+                    Log.e(TAG, "result=" + (result == 0));
+                    Log.e(TAG, "move moov use time=" + (System.currentTimeMillis() - start));
+                }
+                break;
             default:
                 break;
         }
diff --git a/app/src/main/java/com/frank/ffmpeg/util/FFmpegUtil.java b/app/src/main/java/com/frank/ffmpeg/util/FFmpegUtil.java
index 9103ddc..17dc8b8 100644
--- a/app/src/main/java/com/frank/ffmpeg/util/FFmpegUtil.java
+++ b/app/src/main/java/com/frank/ffmpeg/util/FFmpegUtil.java
@@ -321,4 +321,16 @@ public class FFmpegUtil {
         return reverseVideo.split(" ");
     }
 
+    /**
+     * mp4视频的moov往mdat前面移动
+     * @param inputFile inputFile
+     * @param outputFile outputFile
+     * @return 移动moov命令行
+     */
+    public static  String[] moveMoovAhead(String inputFile, String outputFile){
+        String moovCmd = "ffmpeg -i %s -movflags faststart -acodec copy -vcodec copy %s";
+        moovCmd = String.format(Locale.CHINESE, moovCmd, inputFile, outputFile);
+        return moovCmd.split(" ");
+    }
+
 }
diff --git a/app/src/main/java/com/frank/ffmpeg/util/FileUtil.java b/app/src/main/java/com/frank/ffmpeg/util/FileUtil.java
index f1997a0..01a7cde 100644
--- a/app/src/main/java/com/frank/ffmpeg/util/FileUtil.java
+++ b/app/src/main/java/com/frank/ffmpeg/util/FileUtil.java
@@ -26,7 +26,7 @@ public class FileUtil {
     private final static String TYPE_OGG = "ogg";
     private final static String TYPE_AC3 = "ac3";
 
-    private final static String TYPE_MP4 = "mp4";
+    public final static String TYPE_MP4 = "mp4";
     private final static String TYPE_MKV = "mkv";
     private final static String TYPE_WEBM = "webm";
     private final static String TYPE_AVI = "avi";
@@ -36,6 +36,7 @@ public class FileUtil {
     private final static String TYPE_M3U8 = "m3u8";
     private final static String TYPE_3GP = "3gp";
     private final static String TYPE_MOV = "mov";
+    private final static String TYPE_MPG = "mpg";
 
     public static boolean concatFile(String srcFilePath, String appendFilePath, String concatFilePath){
         if(TextUtils.isEmpty(srcFilePath)
@@ -134,7 +135,8 @@ public class FileUtil {
                 || path.endsWith(TYPE_3GP)
                 || path.endsWith(TYPE_TS)
                 || path.endsWith(TYPE_M3U8)
-                || path.endsWith(TYPE_MOV);
+                || path.endsWith(TYPE_MOV)
+                || path.endsWith(TYPE_MPG);
     }
 
     public static String getFileSuffix(String fileName) {
@@ -144,4 +146,18 @@ public class FileUtil {
         return fileName.substring(fileName.lastIndexOf("."));
     }
 
+    public static String getFilePath(String filePath) {
+        if (TextUtils.isEmpty(filePath) || !filePath.contains("/")) {
+            return null;
+        }
+        return filePath.substring(0, filePath.lastIndexOf("/"));
+    }
+
+    public static String getFileName(String filePath) {
+        if (TextUtils.isEmpty(filePath) || !filePath.contains("/")) {
+            return null;
+        }
+        return filePath.substring(filePath.lastIndexOf("/") + 1);
+    }
+
 }
diff --git a/app/src/main/res/layout/activity_video_handle.xml b/app/src/main/res/layout/activity_video_handle.xml
index 35dcccd..fb36e97 100644
--- a/app/src/main/res/layout/activity_video_handle.xml
+++ b/app/src/main/res/layout/activity_video_handle.xml
@@ -116,6 +116,13 @@
                 android:layout_marginTop="4dp"
                 android:text="@string/video_pip"/>
 
+            <Button
+                android:id="@+id/btn_moov"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:layout_marginTop="4dp"
+                android:text="@string/video_moov"/>
+
         </LinearLayout>
     </ScrollView>
 
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index 3217bc7..9536c29 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -40,6 +40,7 @@
     <string name="video_image">视频转图片</string>
     <string name="video_pip">视频画中画</string>
     <string name="video_preview">播放预览</string>
+    <string name="video_moov">MOOV前移</string>
 
     <string name="swap">切换</string>
     <string name="start">开始</string>
@@ -69,5 +70,6 @@
     <string name="wrong_audio_format">非音频文件</string>
     <string name="wrong_video_format">非视频文件</string>
     <string name="converting_video">正在反转视频&#8230;</string>
+    <string name="tip_not_mp4_video">该视频不是mp4,无法进行moov前移操作</string>
 
 </resources>